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EK-OKS10-MG-004

May 1986

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Document:	EK-OKL10-MG-004 KL10 Maintenance Guide Update Jun86
Order Number:	EK-OKS10-MG
Revision:	004
Pages:	342
Original Filename:	EK-OKL10-MG-004_KL10_Maintenance_Guide_Update_Jun86.pdf

OCR Text

EK-OKL10-MG-004

KL10

Maintenance Guide
Volumell

Prepared by Educational Services
of

Digital Equipment Corporation
Marlboro, MA

FOR INTERNAL USE ONLY

1st Edition, February 1979

2nd Edition, December 1983
3rd Edition, April 1985

4th Edition, June 1986

The matenal in this guide Is for informational purposes and Is subject to
change without notice.

Digital Equipment Corporation assumes no responsibility for any errors
that may appear in this guide.

Printed in U.S.A

The following are trademarks of Digital Equipment Corporation.

olilglilta)|

EDUSYSTEM

Rainbow

DEC

IAS

RSTS

DECmate

MASSBUS

RSX

DECsystem-10

OMNIBUS

DECSYSTEM-20

0S/8

UNIBUS

DECUS

PDP

VAX

DECwriter

P/0S

VMS

DIBOL

Professional

vT
Work Processor

-iii-

ORDERING

PROCEDURES

KL10/KS10 Maintenance Guides

To
order
one
or both of these guides
distribution list), send your order by:
MEMO:

Publishing
ATTN:
10

and Circulation

Order

Forbes

Specify

the

ORDER

are

not on the

Services

NRO3/W3

Road

Northboro,

DECMAIL:

Admin

(if you

01532

@NRO

following:

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Location

(only one copy of each guide per name)

Quantity:

(KL10 Maintenance Guide)
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EK-OKS10-MG
2.

Deletions

and

Transfers

deleted from the distribution

subscription

someone

else,

send

list or to transfer your

a memo

to:

Publishing and Circulation Services
ATTN: List Maintenance NRO3/M1
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Specify

the

Remove:

01532

following:
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Add:

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State

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Maintenance

Guide

vyou want

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transfer:

EK-OKL10-MG

(KL10

Maintenance

(KS10

Maintenance Guide)

Guide)

EK-OKS10-MG

—iv-

the

Reader:

IMPORTANT

The

information

this

guide

for

internal

use

Refer
only. Is intended for DIGITAL Field Service engineers only.
to the Field Service Methods and Procedures Manual for company
policy on

internal

OBJECTIVE

- The

the

maintenance

KL10

hardware

information.

objective of

this guide

information

needed

to organize and present

resolve

percent

all

malfunctions.

properly maintain

and

improve

this

guide

future

revisicns,

we need feedback concerning accuracy and clarity. This information
is very helpful to your fellow engineers. Please forward any
corrections, suggestions, and comments that would improve this
guide

to:

Customer
RE: KL10

Services Systems Engineering
Maintenance Guide

(CSSE)

MRO1-1 /S35

ORGANIZATION

for

the KL10.

separate

tables

Volume
of

GENERAL

contains

contents

follows.

maintenance

information

miscellaneous

maintenance

into

contains

tabbed

sections with

and

classifed

cannot

that

hardware

general

is divided

INFORMATION

information

other

The volume

sections.

SWITCHES AND JUMPERS
contains
information
switch positions and jumper connections.

TABLES AND MAPS describes

the

with

associated

the

filed

the process

hardware

tables and

bit maps

peripheral

and

mainframe

KL10

equipment.

CHECKS/ADJUSTMENTS

procedures

performed

contains

during

check

preventive

and

adjustment

and

corrective

maintenance.

DIAGRAMS

layouts,

AND

and

KL10-based

contains

module

block

usage

diagrams,

lists

power

associated

MULTI-CPU contains maintenance and diagnostic
specific

MULs

supply

with

systems.

to multiprocessor

DECnet-10/20

contains

information

systems.

system

hardware

and

software

information.

The information in each hardware section is arranged according
unit and subsystem (that is, CPU, memory, disk, tape, and I/0).

-y

Volume
on

the

separate
l.

contains

KL10.

The

tables

contents

and

hardware

additional

volume

divided

into

software

tabbed

information

sections

with

follows.

COMPUTER INTERCONNECT contains descriptions of the card
cage,
module
locations,
switch
settings,
bit/error
formats,

diagnostics,

and

label

information.

NETWORK INTERCONNECT
locations,
switch
diagnostics, and label

describes the card cage,
module
settings,
bit/error
formats,
information.

HSC

RA81,

SUBSYSTEM

contains

CLUSTER

contains

cluster

level.

RP07/RP20
routines,

procedures

RA60,

and

for

fault

HSC50

Error

isolation

describes RP07 registers and RP20 FSC,
error stops, and other information.

S/X BUS gives a
installation and

general description of
operation information.

Codes.

the

Jjumper,

the

S/X

operation,

and

memory

MAINTENANCE SOFTWARE contains information on the
KLDCP,
KLDCPU,
MEMCON,
TRACON,
DIAMON,
DDT,

DIACON,
D20MON

ARM-10LS
contains
1installation,
fault isolation information.

Bus

and

programs.

SYSTEM SOFTWARE
systems
10.

11.

and

contains

command

RSX-20F

contains

PARSER,

in addition

TOPS-10

contains

GALAXY-10,

and

PIP

information on

information
to

programs

stop/error

information

SYSLIB-20F

and

codes.

TOPS-10,

DECnet-10,

programs.

12.

TOPS-20 contains system program,
and error messagde information.

13.

NOTES

provides

typical operating

formats.

blank

pages

for

command

note

summary/format,

taking.

System Software

SYSTEM

Table

SYSTEM

SOFTWARE

Contents

SOFTWARE. ¢ cccceeecsassesnsscscessoncsssessscssssscsscsssssscsesd

System Monitoring.eecececceeccseescssesssscesssseosssccsascsnsssansacel
Commonly
System

Tips

Used

System

Software

Learning

ProgramsS

Command

to Use

(CUSPS) .eeesecooccccscsccscsssscesl

FOrmat...ccecesssscscssccscccansccascacsccsd

System

SoOftWar@..ceeeesecceccsccsocccocssd

SYSTEM

SOFTWARE

System software is
Refer to Figure 1.

one

the

three

major

Directory

Directories

code)

Processor

files to be transferred

are

in FILES-11 area.

"named"

and enclosed

by a UIC

in brackets:

(user

[X, Y].

identification

SYSLIB-20F
-5

Table

RSX-20F System Program Library User

Task

Description

COP.TSK

Copy

Floppy

disk

copy

utility.

Also
allows
verification
of
disk, as well as verification

DMO.TSK

Tasks

physical
state
of
the
of successful copying.

Dismount
Removes

device

knowledge,

making

from

its

the

front-end

contents

system's

inaccessible

the

user.

FEDDT.TSK

Front-End

DDT

Symbolic

debuger

for

Permits

user

read

front-end

INT.TSK

Initializes

Sets

portjons

FILES-11

devices

recognizable

master

directory

space,

index

and

home

etc.

device

accessed
Command

functions,

access

access
as

the

well

system

that

can

Performs

general

functions

file

among

deletions,

for

future

versions.

tools.

transfer

and

some

maintenance

devices

floppy-to-disk

typing

diagnostic

Program

FILES-11

(e.g.,

programs.

memory

debugging

Interchange

peripherals

front-end

KL10's

interface with KLINIXK

Peripheral

file

user.

Parser

Provides

Will

known

by a given

Primary means

RED.TSK

selected

Mount
Makes

PIP.TSK

"VOLUMES".

blocks,

PARSER.TSK

and

crashes.

Initialize

FILES-11

MOU.TSK

RSX-20F.

directories

and

file

other

transfers,

console,

etc.).

Redirect
Changes

device

front-end

another,

system's

"home"

and

tells

front-end

from

one

system where

FILES-11

resides

presently.

SAV.TSK

Save
Saves

core

FILES-11
ZAP.TSK

1image

RIGID

disk

1in

area.

Z2ap

Permits

Patch

direct

FILES-11
task

environment.

examination

and

modification

files

volume.

images

and

data

files

1interactive

PARSER

GENERAL

INFORMATION

The command PARSER runs as a task under the RSX-20F executive.
Its primary function is to receive ASCII command strings, usually
from the console terminal, and perform console functions on the
KL10

computer.

PDP-11

“\

Control
and

Backslash

Command

RSX-20F

PARSER

ready

load

run PARSER

1Indicates

PAR>

Prompt

PAR%

Prompt commands,

and

commands,
are

the

clock

KL10

and

run

flip-flop

ready to accept
1is
Indicates PARSER
the KL10 run flip-flop is off, and the
is on

clock

KL10

Indicates PARSER 1is ready
and the KL10 clock is off.

to accept
This may

PAR#

Prompt commands,

QUIT or “Z or
SET CON/USER

Exit PARSER - Return to RSX-20F command mode.
The CTY is connected to the program running in
the

KL10

Note

Commands and arguments may be abbreviated to

condition

indicate an error

the simplest form that uniquely identifies
them; e.g., the EXAMINE command may be typed

The maximum number

of characters

Numeric arguments
they are address

default to decimal
or data arguments.

line

280.

they default

COMMAND CONVENTIONS

described

and

conventions

The command

commands begin with E.

since no other

as E

in Table

COMMAND SUMMARY

characters

special

Maintenance Mode - Enables the commands described

KL10.

For

Mode

Connects

to Table

in Table

3 and Table 4,

Command PARSER Special Characters

Meaning
PAR>?<CR>

question

subcommand,

help message
PC;E

PAR>SET?<CR>

typed

mark

argument

level

to be displayed.

PAR>E

PAR>REP 5;E PC!

<CR>

PAR>SH<KCR>

20;SH<KCR>

Used
to
separate
command line.

SEE

Indicates a comment

individual

PARSER
will

executed.

PAR>ST MO-<CR>

command,

cause

commands

brief

within

IF CPU IS IN HALT LOOPLKCR>

line.

Command line terminator - causes
to be

-<CR>

in the

Table 1

Character

in Table 2.

in effect.

No PARSER commands are

a description of the commands listed

refer

is set

The mode

the program running

the console

by PARSER are

used

by the SET CONSOLE command.

User

unless
Then

to octal.

four modes of operation.

The command PARSER has

in a command

the command line

Nullifies the <CR> terminator - allows the
command line to be continued on the next line.
The continuation 1line will prompt with another
dash.

PARSER
-8~

Table 1

Command PARSER Special Characters

Character

Meaning

PARKDE T 100:"C5<CR>
Digits

preceded

interpreted

PAR>DE E

1l's

arrow

and

are

complement.

200: "D5<CR>

Digits
preceded
by
an
interpreted as decimal.

(Cont)

arrow

and

are

arrow

and

are

arrow

and

are

PAR>DE T 200:"B1010<CR>
Digits
preceded
by
an
interpreted as binary.

PAR>DE T 200:"05252<CR>
Digits

preceded

interpreted

octal

can

control

(default).

also

used

causes

PARSER

exit.

program running

printouts.

control

connected

the

suppress

The
in

console

the KL10.

PAR>E E 34'<CR>
A
single
quote
adds
the
current
value
of
the
relocation switch to the number.
See SET OFFSET.

PAR>E

34"CR>

A double

quote subtracts
relocation
switch
from

the current value of
the
number.
See

the
SET

OFFSET.

PARD>DE

30:-1<CR>

string of digits preceded by a hyphen
(minus
sign) is interpreted as the 2's complement of the

value

+-*/

the

Two numeric
asterisk,

string.

expressions

slash

operations
multiplication

Two
are

Example:

Parentheses
Thus

may

1 3

by plus,
by

order

minus,

applying

the

octal.

used

enclose

can

used

parentheses

implicit

Table 2

separated
evaluated

numeric expressions separated by underscore
evaluated by shifting the first left by the

second.
(2*8) /4

are

of
addition,
subtraction,
or division, respectively.

arithmetic

expressions.
to

change

the

operations.

PARSER Maintenance Mode Command Summary
Cross

Command

Description

ABORT

PAR>ALKCR>
Force the
See

CLEAR

1l
KL10

into

HALT

loop.

arg<CR>

CLEAR command

accepts

arguments.

See

CLOCK

PAR>CL

The

the

HALT.

PAR>CL

The

Ref.

e.g.,

SET

CLEAR CLOCK

following

CONKCR>

command

accepts

the

arguments.

CONTROL

e.g.,

Disable

the

CRAM

the

commands.

e.g.,

Disable

INTERNAL.

clock.

CRKCR>

path

PAR>CL
as

CONKCR>

clock.

internal

Same

logic

PAR>CL

data

e.g.,

the

source.

CRAM

e.g.,

the

EXTERNAL

Select

PAR>CL

the

DATA-PATH

PAR>CL

control

SET

D<KCR>

clock.
CL

E<KCR>

KL10

clock

CLOCK

PARSER
-9~

Table

PARSER Maintenance Mode Command Summary

(Cont)
Cross

Command

Ref.

Description
PAR>CL CL F<KCR>

FPULL e.g.,

rate to full

Set the KL10 clock
speed.

Same

SET CLOCK

FULL.

PAR>CL CL H<L<CR>

e.g.,

HALF

Set the KL10 clock rate to full
Same as SET CLOCK FULL.
speed.
INTERNAL

e.g.,

source.

PAR>CL

IKCR>

clock

internal KL10

Select the

Same

SET

CLOCK

INTERNAL.
MARGIN

e.g.,

source.

PAR>CL

M<CR>

clock

internal KL10

Select the

Same

SET

CLOCK

INTERNAL.

NORMAL

e.g.,

PARDCL CL N<KCR>

Set the KL1l0 clock parameters
to internal source and full
rate with the CRAM, DATA-PATH
and

CONTROL

e.g.,

Set

KL10

clock

Same

the

speed.
SLOW

Set

e.g.,

the

speed.
CONSOLE

Put

DATE

PAR>CL

e.g.,

Clear
for a

the date
new date

invalid

full

FULL.

S<CR>

CLOCK

full
FULL.

C<KCR>

front

PAR>CL

rate

SET

PARM>CL

Q<KCR>

CLOCK

clock

console

rate

SET

Same

Equivalent

enabled.

PAR>CL

KL10

e.g.,

the

mode.

clocks

QUARTER

end

into

operator

SET CONSOLE

OPERATOR.

D<KCR>

validity bit and prompt
and time.
This command

RSX-20F

primary

protocol; i.e., if the public structure
(PS)
is mounted.
See SET DATE.
FS-STOP

e.g.,

PAR>CL

FS<CR>

Disable the field service clock error
stop feature.
Same as CLEAR PARITY-STOP
FS-STOP.
INCREMENT

e.g.,

PAR>CL

Set

the

KL10

See

SET

INCREMENT.

KLINIK

e.g.,

Clear

KLINIK

MEMORY

e.g.,

PAR>CL

NOT

memory.

e.g.,

Used with
function.

M<KCR>

See

PAR>CL

SET

for

deposits

confused

MEMORY

with

and

ZERO.

RELKCR>

CLEAR to negate the clear
It is equivalent to SET.

OFFSET e.g., PAR>CL OKCR>
Set the value of the PDP-11
counter

(only).

the default

Not

K<CR>

PAR>CL

examines.

zeroing

factor

parameters

Make KL10 memory
and

IKCR>

increment

See

SET

relocation

OFFSET.

PARSER
-10-

Table

PARSER Maintenance

Mode

Command

Summary

(Cont)
Cross

Command

Description

Ref.

PARITY-STOP

The
the

e.g.,

PAR>CL

CLEAR PARITY-STOP

following
ALL

e.g.,

Disable
AR

PAR>CL

all

e.g.,

CRAM

PAR>CL

e.g.,

DRAM

accepts

features.

ARX parity

PAR>CL

the
e.g.,

all

stop
ARKCR>

DRAM

stop

parity
P

stop

PARITY-STOP

stop

feature.

E<KCR>

enables.

Same

ALL<KCR>

FM e.g., PAR>CL P FM<JCR>
Disable the fast memory (FM)
stop

feature.

D<LKCR>

PAR>CL

parity

stop

CKCR>

CRAM parity

ENABLE

CLEAR

PAR>CL

Disable

ALL<CR>

ALLKCR>

AR and

the

e.g.,

Clear

parity

Disable the
features.

Disable

command

arguments.

parity

feature.

FS-STOP

e.g.,

PAR>CL

FS<CR>

Disable the field service clock
error feature.
Same as CLEAR FS-STOP.
RELOAD e.g., PAR>CL RELKCR>
Disable the automatic reloading of the
KL10 following a fatal error condition.
REPEAT

e.g.,

PAR>CL

Set the repeat
All subsequent
repeated once.
RETRY

e.g.,

REP<KCR>

counter to 0.
command lines will
See SET REPEAT.

PARDCL

RETKCR>

Clear the PARSER RETRY flag.
KEEP-ALIVE-CEASED error will
KLERR

snapshot

TRACKS

e.g.,

Clear

the KL10

See

CONTINUE

SET

before

PAR>CL

Every
cause a

reloading

the

KL10.
10

T<KCR>

tracking function.

TRACKS.

PAR>COLCR>

Continue the KL10 running if it
continuable (i.e., the KL10 has
reset).
DEPOSIT

See

is
not

been

START.

PAR>DE T N:500<CR>
The DEPOSIT command accepts the following
arguments.
Default:
see SET MEMORY.
The previous contents of the location or
argument

specified

PARDDE

e.g.,

Load

data

ELEVEN

will

(777777777777)

e.g.,

PAR>DE

Deposit data (500)
gspecified (2000) .
DEPOSIT

ELEVEN

arguments.

into

the

accepts

e.g.,

AR.

2000:500<CR>

into PDP-11

Default:

DECREMENT

displayed.

A:777777777777<KCR>

the

location

following

THIS.
PAR>DE

D:500<CR>

Deposit data (500)
into the last
PDP-11 location referenced minus
two (-2).
INCREMENT

e.g.,

Deposit data
last

PDP-11

plus

two

PAR>DE

(500)

into

location

(+2).

I:500<CR>

the

referenced

PARSER
-11-

Table

PARSER Maintenance Mode Command Summary

(Cont)
Cross

Command

Ref.

Description
NEXT

e.g.,

PAR>DE

N:500<CR>

(INCREMENT)

Same as DE E I:500<CR>
PREVIOUS

Same

e.g.,

PARDDE

as DE E D:500<CR>

P:500<CR>

(DECREMENT)

THIS e.g., PAR>DE E T:500<CR>
Deposit data (500) into the

last PDP-11
THIS is the

location
default.

TEN e.g.,

PAR>DE T

specified

(30000).

30000:500<CR>

a physical address.
are

not

supported

location

into PDP-10

(500)

Deposit data

referenced.

All

references

(user)

Paged

by PARSER.

are

deposits

DEPOSIT

TEN

Default:

accepts the following arguments.
THIS

DECREMENT e.g., PAR>DE T D:500<CR>
Deposit data (500) into the last
PDP-10 location referenced minus
See SET
the increment value.
INCREMENT.

INCREMENT e.g.,

Deposit data
PDP-10

increment value.

NEXT e.g.,

one

I:500<CR>

See SET

(500)

location

into the

referenced

PAR>DE

Deposit data
PDP-10

PAR>DE

(500)

location

last

plus

the

INCREMENT.

T N:500<CR>

into the last

referenced

plus

(+1).

PREVIOUS e.g., PAR>DE T P:500<CR>
Deposit data (500) into the last
PDP-10 location referenced minus

one

(-1)

THIS e.g.,

PARDE T T:500<CR>

Deposit data

(500)

into the last

PDP-10 location referenced.
THIS is the default.

DISCONNECT

PAR>DIKCR>

Disconnect the KLINIK link by running

The existing KLINIK paraKLDISC.TSK.
See CLEAR
meters are not affected.
KLINIK.
EXAMINE

PARD>EX T

3000<CR.

The EXAMINE command accepts the following
see SET MEMORY .
Default:
arguments.
ELEVEN e.g., PAR>EX EL 3000<CR>

Display the contents of the PDP-11

EXAMINE
location specified (3000).
ELEVEN accepts the following arguments.

Default:

THIS.

DECREMENT e.g.,

PAR>EX EL D<KCR>

Display the contents of the last
PDP-11 location referenced minus
two

(-2).

INCREMENT e.g.,

PAR>EX EL IKCR>

Display the contents of the last
PDP-11 location referenced plus
two

(+2).

NEXT e.g.,

PAR>EX EL N<CR>

Same as EX EL I<KCR>
PREVIOUS e.g.,

(INCREMENT)

PAR>EX EL P<CR>

Same as EX E D<CR>

(DECREMENT)

PARSER
-12-

Table

Command

PARSER Maintenance

Mode

Command

Summary

(Cont)

Cross

Description
THIS

Ref.

e.g.,

Display

TEN

PARDEX

the

location

default.

the

e.g.,

Display

T<CR>

contents

PDP-11

PAR>EX

contents of the
specified (30000).

are

physical

examines
EXAMINE

are
TEN

Default:

not

All

the

Display

the

(user)

PARSER.

following

e.g.,

the

PAR>EX

contents

location

increment

arguments.

D<CR>

the

referenced

value.

INCREMENT

Display
PDP-10

the

e.g.,

the

SET

I<KCR>

PAR>EX

contents

location

increment

the

referenced

value.

See

INCREMENT.

e.g.,

Display
one

PARDEX

the

PDP-10

the

referenced

PDP-10

one

e.g.,

the

PAR>EX

contents of

location

last
plus

(+1).

Display

last
plus

SET

N<KCR>

contents

location

last
minus

See

INCREMENT,

P<CR>

the

referenced

last
minus

(-1).

THIS

e.g.,

PARD>EX

T<KCR>

Display the contents of the
PDP-10 location referenced.

the

e.g.,

Display

references

Paged

supported

THIS.

PDP-10

THIS

PDP-10

address.

accepts

DECREMENT

last

30000<CR>

the

location
to

the

referenced.

PAR>EX

the

last
THIS

default.
ABKCR>

contents

the

Address

Break

e.g.,

Display
ADX

e.g.,

Display
AR

PAR>EX

the

PAR>EX

the

e.g.,

the
Register.
e.g.,

contents

PAR>EX

e.g.,

PAR>EX

Display the
Register.
BRX

e.g.,

PAR>EX

Display

the

contents

e.g.,

Extended

the

Arithmetic

the

Arithmetic

the

Buffer

the

Buffer

BRX<KCR>

ADDRess
CRLOC

ADder

BRKCR>

contents

PAR>EX

Display the
register.

the

ARX<CR>

Display the contents
Register eXtended.
CRADDR

ADder.

AR<KCR>

Display the contents
Register eXtended.
BR

the

ADX<CR>

state

PAR>EX

Display

ARX

ADKCR>

state

PAR>EX

CRADDRKCR>

the

Cram

CRLOCKCR>

contents

the

CRAM

LOCation

PARSER
-13-

Table

PARSER Maintenance

Mode

Command

Summary

(Cont)

Cross
Command

Ref.

Description
DRADDR

e.g.,

Display

the

PAR>EX

DRADDRKCR>

the DRAM ADDRess

contents of

e.g.,

PAR>EX

DTEKCR>

Display the contents of the three DIAG
registers and the status register in the
DTE20.

EBUS

PAR>EX EBUSKCR>

e.g.,

the EBus.

the contents of

Display

FEKCR>

PAR>EX

e.g.,

Display the contents of the Floating
Exponent

FLAGS e.g.,

PAR>EX FLAGS<KCR>

Display the state of the flag bits
(00-12) in the left half of the PC:
OVF,
AFI,
FM

CYl,
ATO,

Cy0,
AT1,

e.g.,

Display

FOV, BIS, USR,
FUF and NOV.

PAR>EX

FM<JICR>

the contents of

UIO,

LIP,

the Fast Memory

PAR>EX KL<KCR>

KL e.g.,

in order,

Perform,
and

EX PI

an EX PC, EX VMA,

FLAGS.

MQ e.g.,

PAR>EX MQ<CR>

Quotient

e.g.,

PAR>EX

PCKCR>

e.g.,

PAR>EX

PIKCR>

Display the contents of

the Multiplier

Display the contents of Program Counter.
)

Display the state of the Priority
system.

Interrupt

REGISTERS e.g., PAR>EX REG<KCR>
Display the contents of the following
registers:

AD,

ADX,

MQ,

and

SBR

e.g.,

Display
Return

AR,

ARX,

BR,

BRX,

FM,

PAR>EX

SBRKCR>

the contents of

the Subroutine

SC e.g., PAR>EX SC<CR>
Display the contents of
register.
VMA

EBUS,

PC.

e.g.,

PAR>EX

the

Shift

Count

VMAKCR>

contents of

Display
Address

the

the Virtual Memory

VMAH e.g., PAR>EX VMAH<KCR>
Display the contents of the Virtual

Address
FREAD

Held

Memory

PAR>FR 110<CR>
Display the result

a diagnostic

function read using the function code
specified (110).
The function code must
be in the range of 100 to 177.
FWRITE

PAR>FW

77:252525777777<CR>

Perform a diagnostic function write
using the function code (77) and data
(252525777777) specified.
The function
code must be in the range of 40 to 77.

PARSER
-14~

Table

PARSER Maintenance

Command

Summary

(Cont)
Cross
Ref.

Command

Description

FXCT

PAR>FX 0<CR>
Perform

Mode

a diagnostic

function

execute

using the function code specified (0).
The function code must be in the range
of 00 to 37.
HALT

PAR>H<KCR>
Halt

INITIALIZE

the

KL10.

See

ABORT

and

SHUTDOWN.

PAR>IKCR>

Check the state of the KL10 clock,
flip-flop and opcode enable.
JUMP

PAR>J

30000<CR>

Start

the

KL10

the

address

specified

(30000) and exit.
The address is
executive space and the processor
not affected.
See START TEN.
MCR

PAR>M

Load

REPEAT

start

the specified
Same as RUN.

PAR>QLKCR>
Exit from PARSER.

USER<KCR>

PAR>REP

2;EX

Cause
of

RESET

the

Same

"Z.
T

the

task

SET

file

CONSOLE

N<KCR>

command(s)

line

PAR>RES

The

mode

BOOT<KCR>

and

(BOOT.TSK).

QUIT

run

the

repeated

remainder

n(2)

times.

ALL<KCR>

RESET

command

arguments.

<CR>

accepts

Default:

e.g.,

Cause
state

PARD>RES<KCR>

e.g.,

RES

affected.

PAR>RES

Perform a
and

following

a master reset of the KL10.
The
of the clock enables and parity

stops are not
the default.
ALL

the

<CR>.

ALKCR>

RES APR,

This

RES DTE-20,

command.

The

KL10

RES

PAG

must

halted.
APR

e.g.,

PAR>RES

Execute

must

halted.

DTE-20

APKCR>

CONO APR,267760.

Reset

e.g., PAR>RES
the DTE20.

ERROR

e.g.,

PAR>RES

The

KL190

D<KCR>

EKCR>

Execute a CONO APR, 27760 clearing
the error flags in the Arithmetic
Process

INITIALIZE

e.g.,

(APR).
PAR>RES

INKCR>

Perform a KL10 master reset and return
clock enables and parity stops to their
default.
The KL10 must be halted.
IO

e.g.,

PAR>RES

IO<KCR>

Execute a CONO APR,200000 which
an I/0 reset.
PAGE

e.g.,

Execute
DATAO

PAR>RES

a CONO

PAG,X

PAGKCR>

PAG,0

(where

e.g.,

PAR>RES

followed

the

X = 100).
This will
paging box.
PI

Priority

contents

reset

a
of

the KL10O

PI<KCR>

Execute a CONO PI,10000 which
the

causes

Interrupt

system.

resets

{

PARSER
-15-

Table

PARSER Maintenance Mode Command Summary (Cont)
Cross

Command

Description

RUN

PAR>RU

Load and run the specified task file
Same as MCR.

(PIP.TSK).

SET

Ref.

PIPLCR>

PAR>SET MEM TENKCR>

The SET command accepts the following
arguments.

PAR>SET CL N<CR>

CLOCK e.g.,

The SET CLOCK command accepts the
arguments.

following

PAR>SET CL CON<CR>

CONTROL e.g.,

Enable the control logic clock.
CRAM e.g., PAR>SET CL CRKCR>
Enable the CRAM clock.

DATA-PATH e.g., PAR>SET CL D<CR>
Enable the data path clock.

EXTERNAL e.g., PAR>SET CL E<CR>
Set (select) the KL1l0 external
PARSER will request
clock source.
confirmation.

HALF e.g., PAR>SET CL H<CR>

Set the KL10 clock rate to one half
of the standard

(divide by 2).

INTERNAL e.g., PARD>SET CL IKCR>
Set (select) the KL10 internal
source.

clock

MARGIN e.g., PAR>SET CL M<KCR>

Set (select) KL10 clock margins.

NORMAL e.g., PAR>SET CL N<KCR>

Set the KL10 clock rate to the
standard (internal source, full
rate with CRAM, data-path and
control logic clocks enabled).

QUARTER e.g., PAR>SET CL QKCR>
Set the KL10 clock rate

to one

quarter of the standard (divide
by

4).

SLOW e.g., PAR>SET CL S<CR>
Set the KL10 clock rate to one

eighth of the standard

(divide

8).

CONSOLE e.g., PAR>SET CON M<ICR>

The SET CONSOLE command accepts the
following

arguments.

MAINTENANCE e.g., PAR>SET CON M<LCR>

Set the console to maintenance mode.

The command set is unrestricted.
Refer to Table 2.
OPERATOR e.g.,

PAR>SET CON O<CR>

Set the console to operator mode.

d
to those
The command set is restricte
listed in Table 3.
PROGRAMMER e.g.,

PAR>SET CON P<CR>

Set the console to programmer mode.
those
to ted
The command set is restric
listed

in Table 4.

USER e.g.,

PAR>SET CON U<KCR>

Exit PARSER.

Leave the CTY

connected to the program running
in the KL1O.

PARSER
-16-

Table

Command

PARSER Maintenance Mode

Command

Summary

(Cont)
Cross

Description
DATE

e.g.,

Ref.
PAR>SET

D<CR>

Set the date and time to be used by
front-end executive, RSX-20F.
This

illegal

date
a

from

reload

FS-STOP

RSX-20F

already has

the

e.g.,

SET

DATE

the
command

a valid

command

KL10.

PAR>SET

F<CR>

Enable

the Field Service Clock Error
feature in the KL10.
This requires
backplane jumper wires to be meaningful.

Stop
Same

SET

INCREMENT

Set

the

PARITY-STOP

e.g.,

FS-STOP.

PAR>SET

increment

and

10<CR>

decrement

KL10 deposit and examine
value specified (10).
KLINIK

e.g.,

PAR>SET

Set the KLINIK
operation.
MEMORY

e.g.,

ELEVEN

for

PAR>SET

NOT

for

deposits
e.g.,

Set

for

the KL10
deposits

e.g.,

PAR>SET

with

SET

accepts

and

console

T<CR>

the

E<CR>

default memory

examines.

PAR>SET

the

T<CR>

default

and

examines.

RELOAD<KCR>

negate

equivalent

for

the

remote

PAR>SET

PDP-11

TEN

Used

e.g.,

the

K<CR>

link

The SET MEMORY command
following arguments.

Set

value

commands

the

SET

memory

function.

to CLEAR.

OFFSET

e.g., PAR>SET O 101204<CR>
the PDP-11 relocation counter to
value specified (101204).
The
relocation counter is initially set to
the address of the PARSER root overlay.

Set
the

PARITY-STOP

ALL<CR>

SET PARITY-STOP command
following arguments.

e.g.,

PAR>SET

accepts

The

ALL

e.g.,

Set

the

and

enable

stop
and

PAR>SET

parity

ALL<KCR>

stop

the

enable

features.

parity
CRAM, DRAM,

AR,

FS-STOP.

e.g.,

PAR>SET

AR<KCR>

ARX

parity

parity
DRAM

stop

e.g.,

stop

PAR>SET

DRAM

stop

ENABLE

e.g.,

Enable

(turn

e.g.,

stop
to

FS-STOP

Enable

error

PAR>SET

on)

selected

the

E<KCR>

PAR>SET

the

e.g.,

FM<CR>

fast

memory

parity

stop

PARD>SET

Field

FS-STOP.

(FM)

parity

conditions.

FS<CR>

Service

Stop feature in the KL10.
requires backplane jumper
SET

D<KCR>

parity

features.

the

conditions.

PARITY~STOP

error

conditions.

parity

Add

error

features.

CRAM e.g., PAR>SET P CKCR>
Add stop on CRAM parity error

following

Add stop on AR and
to the parity stop

Add

the

Clock

Error

This

wires.

Same

PARSER
-17-

Table

PARSER Maintenance Mode Command Summary (Cont)
Cross

Command

Ref.

Description

PAR>SET REL<KCR>

RELOAD e.g.,

Enable the automatic reload of the
This is
KL10 by the PDP-11 front end.
See CLEAR RELOAD.

the default.

PAR>SET REP 5<CR>

REPEAT e.g.,

Set the repeat counter to the decimal
All subsequent command
value specified.
lines will be repeated that number
The value will also be

of times.

used as a multiplier by the REPEAT
command.

PAR>SET

RETRY e.g.,

RET<KCR>

Set the PARSER RETRY flag.

See CLEAR

RETRY.

TRACKS

PAR>SET T<KCR>

e.g.,

Display all FR, FW, FX, Examine, Deposit,

and DTE-20 operations.

SHUTDOWN

PAR>SH<LCR>

Gracefully shut down the TOPS-10 or
This is done
TOPS-20 operating system.
by depositing a minus 1 in location 30.
Timesharing

START

ceases.

PAR>ST M O<KCR> or PAR>ST T 2000<CR>

The START command accepts the following
START with no arguments or
arguments.
If
an argument of 0 is illegal.

neither TEN nor MICROCODE is specified,

TEN

is assumed.

MICROCODE e.g.,

PAR>ST M 0<CR>

Start the microcode at the address
specified

TEN e.g., PAR>ST T 3000<CR>
Start the KL10 at the address

specified

(0).

(3000).

See CONTINUE and

JUMP.

WHAT

PAR>W CL<KCR>

The WHAT command accepts the following
arguments.

PAR>W CL<KCR>

CLOCK e.g.,

Display the current clock state.
See

SET

CLOCK.

CONSOLE e.g., PAR>W CONLKCR>
Display the current console mode.
See
DATE

SET

CONSOLE.

e.g.,

PAR>W D<KCR>

Display the state of the validity flag
and the current date and time held by

RSX~-20F.

INCREMENT e.g.,

PAR>W

I<KCR>

Display the current increment/decrement
value.

See SET

KLINIK e.g.,

INCREMENT.

PAR>W K<CR>

Display the current status of the
KLINIK link.

MEMORY e.g.,

See SET KLINIK.

PAR>W M<JCR>

Display the current default memory.
See

SET

MEMORY.

OFFSET e.g., PAR>W O<KCR>
Display the current value of the

PDP-11 relocation counter.
OFFSET.

See SET

PARSER
-18~

Table

PARSER Maintenance

Command

Mode

Command

Cross

Ref.

PARITY-STOP

e.g.,

Display

current

the

feature.

RELOAD

e.g.,

PAR>W

P<CR>

state

See

SET

PAR>W

REL

the

the current state of
automatic reload feature (ON
See

SET

REPEAT

RETRY

e.g.,

PAR>W

REPKCR>

the

current

value

counter.

e.g.,

See

PAR>W

SET

the

RET<KCR>

e.g.,

PAR>W

the

current

Display
enable

17
PARSER

state

(ON

e.g.,

PAR>W

OFF).

TRACKS.

PAR>X

ZERO

the

argument

PDP-10

(277).

PARSER

(245200000000)

instruction.

(200)

The

memory

through

Note:

of memory

KL10

must

executive mode.

argument

from

second

depending

first

argument

the

this may

take

PARSER Operator

Mode

Command

amount

while.

Summary

Description

ABORT

PAR>ALCR>

CLEAR

PAR>CL

The

EXAMINE

version

PAR>Z 200>277<CR>
Zero PDP-10 physical

Table

trace
SET

254200000000<CR>

Execute

the
See

V<KCR>

Display the current
and RSX~20F.

RETRY

T<CR>

feature

VERSION

XCT

KL10
OFF).

REPEAT.

Display the state of the
flag.
See SET RETRY.
TRACKS

the
or

RELOAD.

Display
repeat

parity

PARITY-STOP.

Display

DISCONNECT

(Cont)

Description

stop

Command

Summary

C<CR>

CLEAR

PAR>CL

command

R<KCR>

accepts

etc.

the

following

CONSOLE

KLINIK

NOT

INCREMENT

MEMORY

REPEAT

PAR>DI<KCR>
KL,

e.g.,

PAR>EX

e.g.,

PAR>

ELEVEN

e.g.,

PC<LCR>

PAR>EX

adr<CR>

DECREMENT

e.g.,

PAR>EX

D<KCR>

INCREMENT

e.g.,

PARMEX

I<KCR>

e.g.,

TEN

KL<KCR>

PAR>

e.g.,

THIS

e.g.,

PHR>EX

PAR>

PAR>
T

N<KCR>

P<KCR>

T<CR>

adr<CR>

DECREMENT

e.g.,

PAR>EX

D<KCR>

INCREMENT

e.g.,

PAR>EX

IKCR>

e.g.,

PREVIOUS
THIS

PARDEX

e.g.,

NKCR>

PAR>EX

PARDEX

P<KCR>

T<KCR>

arguments.

PARSER
~19-

Table 3

PARSER Operator

Command

Description

JUMP

PAR>J

MCR

PAR>MCR

QUIT

PAR>Q<LKCR>

(Cont)

30000<CR>

REPEAT

PAR>REP

RUN

BOOTKCR>

2:EX

NKCR>

PIPLKCR>

CONSOLE e.g.,

SET

Mode Command Summary

PAR>SET CON M<CR>

The SET console command accepts the following four
arguments:

USER,

OPERATOR,

PROGRAMMER

and

MAINTENANCE.
INCREMENT

e.g.,

PAR>SET K<CR>

MEMORY e.g.,

PAR>SET

Table

Description

ABORT

PAR>ALCR>

PAR>CL

CKCR>

Mode

PAR>CL

The CLEAR command

10<CR>

E<KCR>

PARSER Programmer

Command

CLEAR

PAR>SET

KLINIK e.g.,

Command

T<KCR>

MEMORY

DATE

NOT

RETRY

INCREMENT

OFFSET

TRACKS

KLINIK

RELOAD

PAR>COLKCR>

DEPOSIT

e.g.,

PAR>DE

ELEVEN e.g.,

data<CR>

DECREMENT e.g.,

PAR>DE

INCREMENT e.g.,

PAR>DE E

THIS

TEN e.g.,

e.g.,

following arguments.

A:data<CR>

E D:data<CR>

I:data<CR>

PAR>DE E N:data<CR>

PREVIOUS e.g.,

PARDDE E P:data<CR>

PARDDE

T:data<CR>

PAR>DET adr:data<CR>

DECREMENT

e.g.,

PAR>DE

D:data<CR>

INCREMENT e.g., PAR>DE T I:data<CR>
NEXT

e.g.,

PAR>DE

PREVIOUS e.g.,
THIS
DISCONNECT

PAR>DIKCR>

e.g.,

T N:data<CR>

PAR>DE T P:data<CR>

PARDDE

T<CR>

Summary

REPEEAT

PAR>DE E adr:

NEXT e.g.,

etc.

accepts the

CONSOLE

CONTINUE

PAR>SET

T:data<CR>

PARSER
~-20-

Table

Command
EXAMINE

PARSER Programmer

Mode Command

Summary

(Cont)

Description
PAR>EX

The

AB<KCR>

EXAMINE

PAR>EX

command

PCKCR>

accepts

etc.

any

the

following

arguments.

CRLOC
DRADDR

DTE-20

EBUS

REGISTERS

ARX

SBR

BR
BRX

FLAGS
FM

VMA

CRADDR

e.g.,

VMAH

PAR>EX

adr<CR>

DECREMENT

e.g.,

PAR>EX

D<CR>

INCREMENT

e.g.,

PAR>EX

I<KCR>

e.g.,

TEN

ELEVEN

PAR>EX

e.g.,

THIS

e.g.,

PAR>EX

EL N<CR>

PAR>EX

PAR>EX
T

P<KCR>

EL T<CR>

adr<CR>

DECREMENT

e.g.,

PAR>EX

D<CR>

INCREMENT

e.g.,

PAR>EX

IKCR>

e.g.,

THIS
HALT

ADX

PAR>EX

e.g.,

N<CR>

PAR>EX

PARD>EX T

P<KCR>

T<CR>

PAR>HLKCR>

INITIALIZE

PAR>ILKCR>

JUMP

PAR>J

MCR

PAR>MCR

QUIT

PAR>Q<KCR>

30000<CR>
BOOT<CR>

REPEAT

PAR>REP

2;EX

RESET

PAR>RES

ALL<KCR>

The

RESET

N<KCR>

command

ALL

PAR>PAGKCR>

accepts

ERROR

PAG
PI

APR

INITIALIZE

DTE-20

1/0

RUN

PAR>RU

PIPKCR>

SET

CONSOLE

e.g.,

The

SET

USER,

DATE

PAR>SET

CONSOLE

OPERATOR,

e.g.,

INCREMENT

the

PROGRAMMER

PAR>SET
e.g.,

CON

command

PAR>SET K<KCR>

MEMORY

PAR>SET

e.g.,

NOT

e.g.,

OFFSET

M<CR>

accepts
and

four

arguments;

MAINTENANCE.

10<CR>

E<CR>

command

PAR>SET

accepts

PAR>SET NO arg<CR>

e.g.,

arguments.

D<CR>

PAR>SET

KLINIK e.g.,

The SET MEMORY
ELEVEN and TEN.

etc

following

PAR>SET

101204<CR>

two

T<KCR>

arguments:

PARSER
-21-

Table

PARSER Programmer

Command

RELOAD

e.g.,

PAR>SET

REPEAT

e.g.,

PAR>SET

RETRY

e.g.,

TRACKS

SHUTDOWN

PAR>SET

e.g.,

PAR>ST

WHAT

Summary

(Cont)

REL<KCR>
REP

5<CR>

RET<KCR>

PAR>SET

M<CR>

The

START

and

TEN.

PAR>W

The

T<KCR>

PAR>ST

command

CL<KCR>

WHAT

PAR>W

command

3000<CR>

accepts

MEMORY

CONSOLE

two

VKCR>

accepts

CLOCK

arguments:

following

OFFSET

TRACKS

PARITY-STOP

VERSION

RELOAD

ZERO

PARZ

arguments.

RETRY

INCREMENT
KLINIK
PAR>X

MICROCODE

etc.

the

DATE

XCT

REPEAT

254200000000<CR>

200>277<CR>

DESCRIPTION

This

section

describes

A<CR>

The

command

Command

PAR>SH<CR>

START

COMMAND

Mode

Description

into

the

number

MICROCODE

the

ABORT

KL10

HALT
EBox

detail

loop.

clock

CRAM

the

commands

stops

this

ticks,

address

processor.

the

listed

KL10

fails

the

after

command

which

in Table

trying

2.
force

reasonable

tries

master

reset

implies

get

the

KL10

the

START
of

NOTE

This

is
the best way to
into
a
known
state
when
state left it hung.
'

CO<KCR>

loop,
PC.

The

CONTINUE

causing
If

single

continue

command

takes

the

KL10

execute

the

instruction

mode

was

running.

not

out

pointed

set,

the

KL10

HALT

the

should

single

instruction mode was set via the
FXCT 12 function, the instruction is executed,
and the KL10
is returned to the HALT loop.
FLAGS<KCR>

The

flag

mnemonics

displayed

are

follows.
AFI

- Address

ATO

Trap

(bit

10)

ATl

Trap

(bit

09)

BIS

First

CY0

Carry 0
(bit 01)
Carry 1 (bit 02)
Floating Overflow

CYl

FOV FUF -

Failure

Part

Floating

Inhibit

Done

(bit

11)

Public

NDV

OVF
UIO

(bit 12)
Overflow/Previous Context

User

In-Out/Previous

USR

User

(bit

FX<CR>

write

(starts

07)

Divide

The

code,

result.

FXCT

the

KL10

the

values

H<CR>

HALT

command

loop

clearing

RUN,

the

loop,

by
into

HALT

the

by using BURST mode.
is displayed.

the

number

use

the

put

and

KL10

FXCT

HALT or ABORT

tries

and

write,

(stops

Random

(Use

accepts

(bit 00)
(bit 00)

User

function

are

clock).

errors.

The

command

performs

Useful

Public

Context

05)

CRAM parity
-

08)

03)

(bit

LIP

(bit

04)

(bit

Underflow

(bit

defined

the

can

cause

commands

KL10

into

waiting.

HALT

this

function

displays
clock),

the

and

first.)
the

HALT

If the KL10 is unable
command tries to force it

does

not

work,

error

false

to
in

message

PARSER
-22-

- The

I<KCR>

checks the

INITIALIZE command

state of

the KL10,

(re)initializes PARSER,

and

sets up the KL10 state flag

word with default values and restarts the KL10 based on those

values.

running,

The

run

following KL10 conditions are checked:

flip-flop

set,

opcode

and

clock

INITIALIZE

enabled.

also checks to see if this PDP-11 is running on a privileged
DTE20.

REP 2:EX T P<CR> - The REPEAT n command causes the command(s)

in the remainder of the line to be repeated n

times if

(2)

See SET REPEAT.

the SET REPEAT value is set to 1.

the

SET REPEAT value is greater than 1 then it is multiplied by
the REPEAT n value and

the

commands are

repeated

that many

times.

- The

RES

D<CR>

mode

transfers.

RESET

DTE-20

command

resets

the DTE20

Then
depositing a 1 in bit 6 of DIAG WORD 2 in the DTE20.
bit 0 in DIAG WORD 1 of the DTE20 is set to 1 indicating word
SET CL E<CR> - The SET CLOCK EXTERNAL command selects the
If no external clock
external clock source for the KL1O.
source is connected, the KL10 is stuck and can only be reset
by powering the system down and then up again.
10

SET T<CR> - The SET TRACKS command causes changes in the
internal state of the KL10 to be displayed after each clock
This is done via diagnostic reads and is primarily
tick.
used for debugging hardware or front-end software. This will
result in a lot of wasted paper if you are not careful.

SH<CR> - The SHUTDOWN command deposits a -1 (minus one) into
KL10 executive virtual location 30

(octal).

It is used to

gracefully bring down the KL10 timesharing systems. It will
cause PARSER to exit if the deposit was successful, which
Wwill cause the console terminal to be connected to either
If EDDT is not
EDDT (if loaded), or to the dead KL10.

loaded,

(TOPS-20

the KL10 will execute a HALT instruction

only) as soon as the clock interrupt is serviced.
12

ST M O<KCR> - The START MICROCODE command performs a KL10
reset

master

and

address specified.

starts

the

microcode

the

microcode

Starting the MICROCODE at addresses other

than 0 is probably not helpful for most users.

ST T 30000<CR> - The START TEN command starts the KL10 at the
address

requested

using

an algorithm determined

the

It puts the KL10 into the HALT
version of the microcode.
loop, loads the address onto the AR, and does a function
CONTINUE, causing the KL10 to start at the address requested
in EXEC KERNAL mode. To start the KL10 without losing the
old processor mode, use the JUMP command, which will accept
an address, EXECUTE a JRST (opcode 254) to that address (in
EXEC Virtual Space), and continue 1in whatever mode the
processor was

in.

X 254200000000<CR> - The XCT command takes a 36-bit octal
argument and executes it as a KL10 instruction.
NOTE

Executing an instruction with an opcode

of zero may cause random results because
the microcode uses op-code zero coming
out of the HALT loop for START and
CONTINUE.

SET

KLINIK<KCR>

The

RSX-20F

KLINIK

link

enabled

with

the

console
issuing a SET KLINIK command to PARSER from the localfollowing
(CTY) . PARSER will then request and validate the

parameters.

PARSER will
following

KLINIK

request

prompt.

the KLINIK mode desired

MODE:

The acceptable response to this prompt is either USER or
REMOTE.

USER indicates that the KLINIK link is to be used as a
timesharing terminal line (only). See SET CONSOLE USER.

PARSER
-23-

REMOTE

indicates

remote

console

Programmer

There
other

the

operator

KLINIK

either

SET

link

Maintenance,

used

Operator

CONSOLE.

will

receive

one

the

any
and

following

messages:

PAR

[SET]

NSK

PAR

[SET]

ILC

ILLEGAL

where

"XXX"

character,
Next

the

See

is no default response to this prompt.
I1f
response is supplied,
the command will abort

1local

error

that

line

mode.

PARSER

printing

SUCH

and

KEYWORD

"XXX"

CHARACTER

"C"

are

"C"

the

offending

Kkeyword

and

respectively.

will

request

the

following

the

KLINIK

prompts

ACCESS

and

WINDOW

accepting

parameters

responses

sequence.

WINDOW

OPEN

DATE:

ACCESS WINDOW

OPEN

TIME:

ACCESS

WINDOW

DATE:

ACCESS

WINDOW

TIME:

The

possible

date

formats

are

follows.

DD-MMM-YY
DD-MMM-YYYY
DD

MMM

YYYY

the

decimal

representation

day,

the

MMM

month,

1is

the

and

alphabetic

YYYY

the

decimal year in which the KLINIK WINDOW is to open or
close.
The default
response
to
a date prompt
is
a
<carriage return>.
This will set the Window Open Date
to TODAY, and the Window Close Date to TODAY + 1.
TODAY
is the current date obtained
from RSX-20F.
See WHAT
DATE.

The

day specified must
be
within
the
range
of
1-31.
Date
for
months
having
1less
than
31
days
will
be
validated.
This includes a special check for February
in a leap year.
The month MMM is composed of the first
three letters of the month to be entered. The year may
be specified as either a Gregorian year, 19XX, or as a
year relative to 1900,
(00 through 99) where the first
two digits are assumed to be the first two digits of the

current century.
Failure to adhere to this syntax will
cause
the
command
to abort,
and one of the following
error messades to be printed.

DOR DAY OUT OF

[SET]

PAR

[SET]

PAR

[SET]

AMB AMBIGUOUS KEYWORD

PAR

[SET]

YOR YEAR OUT OF RANGE -

does not exist

specified

NSK

for

the month

SUCH

the month

is ambiguous.

improperly

"XXX"

specified

day

the

RANGE

PAR

specified.

the

"XXX"

KEYWORD

keyword

cannot be matched.

If that keyword

"XXX" -

is the offending

keyword.

the year has been

specified.

PAR [SET] DBT DATE BEFORE TODAY - If
open or close date is prior to TODAY.

The Window Open Time and Window Close
in either of the following formats.

the

entire

window

Time

may

specified

hour

and

minute.

HHMM
: MM
HH

HHMM

both

range

representation

formats,
of

23,

the

and

the

hour
MM

within the range of 00 to 60.
<carriage return>.
This will

and

the

must

minute

within

and

must

the
be

The default response is a
set the Window Open Time

PARSER
-24-

and

the

time

Window

day

Specifying

Time

obtained

from

time

which

NOW.

does

not

will cause the command
message to be printed.

abort

PAR

RANGE

[SET]

TOR

TIME

OUT

NOW

RSX-20F.

See

conform
and

the

current

WHAT DATE.

the

this

syntax

following

error

Finally,
when the complete specifications for both the
Window Open and Window Close times and dates have been
specified, the Window Open time and date will be checked
to ensure that it does precede the Window Close time and
date.
If this is not the case, the command will abort
and the following error message will be printed.
PAR

[SET]

KWE

KLINIK WINDOW

ERROR

If
the
KLINIK mode
specified
was
USER,
the
dialogue
will
terminate
at
this
point,
as
all
necessary
parameters
have
been input.
If
the
specified KLINIK mode was REMOTE,
two
more parameters will be solicited from the operator.
PARSER

will

first

request

password

with

the

following

prompt.

PASSWORD:

The

local

operator

remote KLINIK user
the KLINIK link.

must
in

communicate

order

that

this

password

allowed

access

the
to

The password must be at least one
and not more than six
numeric
or
uppercase
alphabetic
characters,
with
no
imbedded
or
trailing
blanks.
There
are
no
default
responses.

The

echoed

Failure

operator's

the

provide

the command to
to be printed.

PAR

[SET]

local

NPI

and

one

PASSWORD

[SET]

this

prompt

will

in
of

this

form

will

cause

the

ILLEGAL

specified.
PAR

(CTY).

password

abort

NULL

response

console

following

PTL

PASSWORD

characters

were

typed.

PAR

IPC

ILLEGAL
PASSWORD
character
was

CHARACTER
typed
as

character.

[SET]

TOO

LONG

nonalphanumeric

character.

"C"

PARSER

will

highest
link is

PARSER console
active with the

HIGHEST

CONSOLE

the

offending

request

that

the

password

than

was

six

"C"
If
a
a
password

operator

mode
to be allowed
following prompt.

messages

specify

while

the

KLINIK

MODE:

The

acceptable

(See

SET

responses

this

prompt

areas

follows

CONSOLE).

MAINTENANCE

OPERATOR
PROGRAMMER

While
the

the

KLINIK

remote

link

the

active,

PARSER

local

console

PARSER
console
mode,
specified
in
response

default

response

Failure

will

cause

message
PAR

where

If all
PARSER

this

prompt.

the

proper

the

command

will

raise

not

the

allow

command

a
level
higher
than
that
this
prompt.
There
1is
no

provide

[SET]

"XXX"

to
to

abort

response

and

following

the

this

prompt
error

printed:
NSK

the

offending

parameters have
will
return
to

KLINIK enable parameters

SUCH

KEYWORD

been properly
command
level

in the

"XXX"

keyword.

input
after

following

and validated,
displaying
the

format.

PARSER
25~

KLINIK

[<ACTIVE>

<DISABLED>]

ACCESS

WINDOW

OPEN:

ACCESS

WINDOW

CLOSED:

DD-MM-YYY

KLINIK

MODE:

[<KREMOTE>

<USER>]

ACTIVE
the

DD-MMM-YY

HH:MM

indicates

that the
KLINIK 1link.

RSX-20F

INACTIVE

KLINIK

user

connected

indicates

set,
but
WINDOW is

that the KLINIK parameters have been
has
not
yet
been
allowed
(i.e.,
the

access

not

DISABLED

open

yet).

indicates

that

mode

REMOTE,

KLINIK

parameters

set.

the

KLINIK

displayed

describing

the

Upon

MODE

KLINIK

recovery

the

and

the

system

(TOPS-20

from

KLINIK<KCR>

CLEAR

KLINIK

parameters

pass

PDP-~11

RSX-20F

these

log
to

The

RSX-20F

command.

KLINIK

This

printed

remote
KLD

KLINIK

The

current

the

KLINIK

ACCESS

TERMINATED

KLINIK

the

enable

KL10

operating

ACCESS

WINDOW

link

both

KL10

KLINIK

disabled

does

the

SET

the

facilitate

command

accepted.

reboot.

arguments, it simply clears the KLINIK WINDOW.
If
link
is
active,
the
CLEAR
KLINIK
command
will
following message
consoles.

will

mode

were

parameters

TOPS-20),

been

<PROGRAMMER>]

will

that

have

1line

console

parameters

will

additional

PARSER

[<MAINTENANCE>

these

RSX-20F

operating

CLEAR

command

Further,

LIMIT:

receipt

one

highest

allowed.
CONSOLE

not

via

the KLINIK
cause
the

local

and

the

OPERATOR

parameters

will

reset

and

passed

system
(TOPS-10
or
TOPS-20).
will
close
and
RSX-20F
will
log

KLINIK mode termination on the CTY.
The modem will
hung
up;
however,
all
input
from and
output
to the

The
the

not be
remote

console will be ignored and all subsequent calls made to the
KLINIK LINK will be acknowledged and rejected until such time
as a new KLINIK WINDOW is set by the local operator.
rejection message will be in the following format.
KLR--KLINIK

This

remote
17

RING

rejection

KLINIK-WINDOW

message

will

The

CLOSED

appear

both

the

local

and

consoles.

RET<CR>

When

KEEP-ALIVE-CEASED

the

RETRY

error

flag

will

result

set,
in

the
the

occurrence
execution

instruction
in location 71.
The
instruction
branches
to
a
routine
that
will
cause
the
KL10
system
(TOPS-10
or
TOPS-20)
to
dump memory
and

the

typically
operating
request
a

reload.
If
this can not be accomplished before the end of
the keep-alive period (5 seconds), then RSX-20F assumes that
the KL10 is incapacitated.
1In this case KLERR is called to
take a KL10 hardware snapshot and then reload the KL10.
If

the

RETRY

occurrence
of
snapshot

KLERR

flag

a
and

clear

(CLEAR

RETRY

KEEP-ALIVE-CEASED
error
reload of the KL10.

command)

will

result

every

I/0 ERROR
-27-

RSX-20F STOP CODES AND

I/0 ERROR CODES

This

two

appendix

contains

lists

error

codes.

The

first

list

contains RSX-20F stop codes. Associated with each code is the name
of the module that issued the stop code, a
short explanation of
the error, and a possible cause of the error. The second is a list
of I/0 error codes that are produced by the device handlers and
file
control
primitives.
These
error
codes
have
associated
messages that are listed along with them; however, due to the many
different situations in which these errors can arise, no attempt
is

made

describe

recovery

Code | Module

Meaning

BO3

BUFFER

SCOMM

algorithms

OVERFLOW

for

these

errors.

The

PDP-11 was not able to obtain the buffer space
necessary for data it wanted to send to the KL.

BO5

CBR

TTYDRR

Possible

Cause:

Software

error.

BUFFER

OVERFLOW

Front-End

does

send

XON

CROBAR

ERROR

DTE-20

power

RSX-20F

Possible

Cause:

QPRDTE

TO-11

DTE

did

have

not

return

hardware

buffer

space

the

after
seconds

a
to

power-fail
reappear.

KL.

FAILURE

interrupt

has

the DTE TOllAD
have the expected

not

the

line.

allows

TRANSFER

TO-1l-done

address

not

XOFF

did

restart.

Malfunctioning
DTB

The

occurred,
register

but

the

TO-11

(register
22)
Since TOllAD is

value.

incremented
for
each
byte
transferred,
it
should
point to the first word following the buffer
into
which the TO-11 data was written.
Possible
The

Cause:

PDP-11

received

the

wrong

byte

likely, the DTE has a hardware
contains
the
negative
count

count

or,

malfunction. TO1l1lBC
of
data
that
was

actually
transferred.
TOllAS
contains
address
of
data node. Rl contains expected termination address
and
CRS$DTB-2
contains
the
actual
termination

address
DTD

COMTRP

UNIBUS

for

transfer.

TIMEOUT

Reference
Possible

the

Malfunction
DTF

QPRDTE

TO-10

DTE

DTE-20

caused

UNIBUS

timeout.

Cause:

the

hardware

TRANSFER

TO-10-done

the

KL.

FAILURE

interrupt

has

occurred

but

the

TO0-10

address
in
the DTE
TOl0AD register
(register
20)
did not have the expected value. Since TOl0AD gets
incremented
for
each
byte
transferred,
it
should
point
was

sent

Possible
The

R4,

the

contains

start

word

following

the

packet

the

byte

that

KL.

gave

likely,

TO10SZ

first

the

Cause:

PDP-11

more
the

the
to

address.

DTE

the

has

size

The

wrong

hardware
the

expected

count

or,

malfunction.

transfer

and

termination

TOl0AS

address

I/0 ERROR
-28-

RSX-20F

Code | Module
ETE

QPRDTE

STOP

CODES

AND

I/O

ERROR

CODES

TO-11

TRANSFER

ERROR

A DTE interrupt occurred with the
the DTE status register (register
Possible

the

malfunction

and

through
LC

FILES~11

task

TOllER bit
34).

set

Cause:

Hardware

FTA

(Cont)

Meaning

along
the
data
path
(MBOX,
EBOX,
EBUS,

PDP-11

between
DTE-20,

ll-memory).

TASK

ABORTED

occupying

F1l1TPD partition has
aborted
and
the
task
termination
notification
task
(TKTN)
cannot be started since it too runs in the Fl1TPD
partition.

Possible
.TKTN

Active
IAS

SCH

Cause:

may

UNKNOWN

have

Task

Possible

bit

QPRDTE

and

.CRTSK

node

the

point to the
aborted task.

EVENT

.SERFG

has

been

set.

Cause:

hardware

in PDP-11.
ILF

(ATL)

SIGNIFICANT

unused

PDP-11

aborted.

List

ILLEGAL

malfunction

.SERFG

PROTOCOL

has

the

bit

corrupted

software

set.

FUNCTION

The

function
code
in
a
TO-11
protocol
header
specified
a
function
that
is
outside
the
legal
range

that

Possible
KL

software

along

the

data

QPRDTE

1is

path

function

address
ILQ

ILLEGAL

QUEUE

and

direct
from

account

and

PDP-11.

two.

contains

the

times

protocol

hardware

disagree

that
the

should

take

into

sent

across

the

headers

place

packets.

missing

TO-11

either

STATI+0

doorbell

the

STATI+2

interrupts,

the

PDP-11

contain

the

KL's

the

last

the

TO10QC

expects,

expects.

REQUEST

the

Possible

the

PDP-11

and

FAILURE

load

nonresident

F11TPD partition

monitor

routine

failed.

Cause:

PARITY

memory

(trap

count

Files-11

MEMORY

the

attempt

The
LC

are

taken

RSX-20F

LOAD

far

You

Cause:

is
software

into

MPE

number

thus

status word as
read by
examine.
STATI+4
is the count

the

have

TO-11

SCH

contains

PDP-11l.

indirect

direct

corrupted.

LRF

malfunction

header.

PDP-11

that
as

COUNT

PDP-11

the

Possible

The

corrupted

between

transfers

the

DTE-20

unimplemented.

code

the

The

currently

Cause:

system

incomplete

damaged.

ERROR

parity

location

error

114).

has

occurred

The

memory

are

stored

starting

the

PDP-11

Processor

Handbook

location

status

PARSAVE.

for

the

PDP-11

registers
(Refer

details.)

I/0 ERROR
-29-

RSX-20F

STOP

Code|

Module

Meaning

PT1

QPRDTE

PROTOCOL

CODES AND

protocol

request.

The

than
the
maximum
(currently 10).
Possible
KL

(Cont)

device

number

was

allowed

was

found

the

device

QPRDTE

1is

data

corrupted

path

number

PROTOCOL

than

PT3

QPRDTE

ERROR

illegal

TO-11

greater

number

.DQPSZ

between

from

the

hardware

the

and

protocol

The

allowed

function

maximum

Possible

Cause:

Same

at
protocol

PT1
above.
header is in

PROTOCOL

ERROR

The

PDP-11

the

KL.

The

protocol

request.

the

malfunction

PDP-11.

header

TOl1lDV.
PT2

specified

device

Cause:

software

along

ERROR CODES

BROKEN

illegal

TO-11

I/O

was

specified

found

BC.FNM

(currently

The
function
TOl1FN.

greater

34).

code

from

the

has

received a doorbell
interrupt
from
The
indirect bit in the KL's TO-11 status
indicates that an indirect transfer
is to be
initiated. The function code, however, sent in the
last
protocol
header,
does
not
indicate
that
an

word

indirect

request

significant

bit

Possible

Cause:

Same

PT1

code

and

STATI

PROTOCOL

ERROR

1is

the

above.

progress

function

TOllFN

contains

code

(the

was

contains

the

TO-11

not

the

function

protocol

word.

PT4

QPRDTE

The

the

packet

size

wants

RED

RES

RED

size

send a packet
is greater than

above.

REDIRECT

ERROR

error

has

command.

The

file

Call

Software

your

RESERVED

The

was

made

the

PDP-11
to

occurred
control

EQSZ.

during

MCR

REDIRECT

service
is
Specialist.

corrupted.

execute

the

location

10.

illegal

PDP-11

attempt

reserved

Processor

Handbook

hardware

Cause:

software

malfunction
TBT

TRAP

trap

instruction. Refer to
for further details.

Possible

size

Support

INSTRUCTION

This

PDP-11

to
the PDP-11,
but
the maximum allowed

Cause:
PTl1

fatal

status

100.

Possible
Same

most
set) .

T-BIT

TRAP

This

PDP-11

currupted

occurred.

PDP-11

trap to location 14 occurs when the BPT
instruction
(not
used
by RSX-20F)
is
executed or
when
the
T-bit
is
set.
(See
the
PDP-11 Processor
Handbook for further details.)

ERROR

I/0

-30-

RSX~20F STOP CODES AND I/O ERROR CODES

Code | Module

Possible

Cause:

Corrupted
PDP-11
malfunction.
TET

QPRDTE

(Cont)

Meaning

TO-10

TRANSFER

DTE-20

(TO-10

error)

the

Possible

PDP-11

hardware

ERROR

interrupt

set

software

has

occurred

with

MPEll

(PDP-11

DTE-20

status

either

parity

TOlO0ER

error)

(register

bit

34).

Cause:

DTE-20 hardware error, PDP-11 memory parity error,
or hardware malfunction along the data path between
the
TO4

PDP-11

TRAP AT

and

KL.

LOCATION

The PDP-11 traps to location 4 when it makes a word
reference to an odd address or when a bus timeout
occurs.
(See
the PDP-11 Processor Handbook
for
further details.)
Possible

Cause:

PDP-11
software
peripheral
device

1is
1is

corrupted,
or
a
PDpP-11
malfunctioning
or
has
gone

away.

UIE

QPRDTE

UNIMPLEMENTED

The

the
of

uses

PROTOCOL

bits

0-2

communications
any

read

disaster
by

FUNCTION

the

front

The

currently

doorbell.

its

region

occurring

TO-11

word

inform

the

front

end

the KL.

These

bits

are

end

receipt

implemented

KL-RELOAD REQUEST and KL POWER
that are set cause this halt.

Possible

status

to
in

FAIL.

TO-11

functions
Any

other

are
bits

Cause:

Corrupted KL software, a KL hardware malfunction or
any
hardware
malfunction
along
the
data
path
between

and

PDP~11l

could

the

cause

this

error.

The following is a list
codes
are
returned
by
primitives

RSX-20F,

of possible I/0 error
the
device
handlers

they

are

global

the

codes. Since these
and
file
control

sense

that

they

can

come from any utility in the system. That is, a code of -33 means
the same thing when it comes from PIP that it means when it comes
from SAV. Because of the global nature of the error codes, it is
not possible
to describe
the
exact problem;
the
situation
is
different with different utilities. Therefore, the following list
does not attempt to explain
message associated with it.

the

error

code

other

than

list

the

Note that there are two messages associated with the code -2. This
is legitimate; a message code of -2 is produced in two types of
situations.
Code

Message

-1

Bad

parameters

-2

Invalid

-2

EBOX

-3

Device

function

code

-4
-5
-6

Parity error on device
Hardware option not present
Illegal user buffer

-7
-8

Device
Device

not attached
already attached

-9

Device

not

stopped
not

ready

attachable

I/0 ERROR
-31-

Code

Message

-10
-11
-12

End of file detected
End of volume detected
Write attempted to locked

-13

Data

-14
-15
-16
~-17
-18
-19
-20
-21

Send/receive failure
Request terminated
Privilege violation
Sharable resource in use
Illegal overlay request
0dd byte count or virtual address
Logical block number too large
Invalid UDC module

-22

UDC

connect

error

-23

Caller's

-24

Device

-25
-26

Index file full
No such file

-27

unit

overrun

nodes

exhausted

full

Locked

from

write

header

access

-28

File

-29
-30
-31
-32
-33

Accessed for write
File header checksum failure
Attribute control list format error
File processor device read error
File processor device write error

-34
-35
-36
-37
-38

File
File
File

already accessed on LUN
ID, file number check
ID, sequence number check
No file accessed on LUN
File was not properly closed

-39

Open

full

buffer

record

space

available

for

file

-40

Illegal

-41
-42

File exceeds space allocated, no blocks
Illegal operation on file descriptor block

record

size

~-43

Bad

-44
-45

Illegal
Illegal

record
record

access bits set
attributes bits

-46

Illegal

record

number

-47
-48

Multiple
Rename -

block read/write - not
two different devices

-49

Rename

new

-50

Bad

-51

Cannot

type

file

directory

file

system

old

Bad directory syntax
File already open
file

-55
-56

Bad
Bad

device name
block or device

Enter
Not

Fatal

-60

File

-61

implemented
in

name

duplicate

enough

entry

stack

hardware

ID was

not

space

error

directory

(FCS

FCP)

device

specified

Illegal sequential operation
of tape detected

-62

End

-63

Bad

version

-64

Bad

file

-65
-66
-67

Device off-line
File expiration
Bad tape format

-68

Not

ANSI

use

file

rename

Bad

-57

set

large

already

-54

-59

too

name

-52
~53

-58

number

header

"D"

date

format

not
byte

reached
count

‘Tops-10

KL10

Maintenance Guide

Volume

TOPS-10

Replace

all

text

pages

TOPS-10

tab

with

the

(pages

Discard

this

through

sheet

after

following

27).

completing

directions.

the

sheets

TOPS-10
-1-

Table

TOPS—-10

SYSTEM

TOPS—10

COMMAND

PROGRAM

Contents

LIBRARY.:.vescesccscossostsoccsasssnssascasl

LANGUAGE . eeeesecsoosnsosscssscesvsscsscsesnsscsscocscsl

ERROR MESSAGES . it teesssetscsossoscsoscsscssssssssssssonssesssssssccasc?
TOPS-10 Command ConventionS.....c... et eeesesnssesessasessscecssd
TOPS—~10

Command

TOPS—10

Stop

SUMMALYeeeooossosccccscsssssssscosnsscacsssssssocceld

Code

SUMMATIYseeseescccscescscsscsscsscsocsssscssscscealb

PIP..0l‘.......CI.......l..........00..."000000000000000000.00023
GENERAL INFORMATION. . eveeosossssesasoscsosssossssssssoscscssnoscosssosell
COMMAND CONVENTIONS AND SWITCHES .t eeeeevecescassoscssssscsssscesll
PIP Command String FOrmMat...eeeeceeescoccsesosccsosscsoscocscsscsell
PIP Command ConventioNS..seeeeeescssscscsscscsccssssssssssssncsasld
PIP Command String DelimiterS.scecssesecceccans cscecccnscsssseasald
PIP Acceptable Device MNEemMONIiCS. ceseteocsssscsssessscssssnesaslD
File Protection CodeSiuiseecsciersccccccsssasssascssssecsssessassseld
UFD and SFD Protection CodeS..iceeeicsscsesccscsacsssssasscccccsalb
PIP

Control

Switch

SUMMArY.:eeeteesasocssscsscsssssosssssscsssecalld

PIP Magtape Switch SUMMArY.eceeeesessscsccosocssssscsssaocccnnnsall
ExampleSQQoo-oncooo.tooo.oon..oo.ooonnouooooo.ooooooo.'ooo.l0027

SYSLIB-10

TOPS-10 SYSTEM PROGRAM LIBRARY
The programs in the TOPS-10 System

Table

Program

Library

are

listed

and

described

Program

Description

AID

Algebraic Interpretive Dialogue.
Each command occupies
one line and can be executed
immediately or
stored as

Table 1

part

requires
ALCFIL

TOPS-10 System Program Library

routine

program

for

used

for

later

execution.

programming
allocating

space

for
existing

reallocating
space
for
an
contiguous region on the disk.
ALGOL

ALGOrithmic
language

Language.

that

contains

computational
BACKUP

program

A
a

This

interpreter

experience.
a

new
file

scientifically

complete

syntax

file

or
one

oriented

for

describing

algorithms.

used

save

disk

files

magnetic

tape,

and

later
to
restore
any
or
all
of
these
files
to disk.
Magnetic tape is the medium used for backup storage of
disk files and for transporting files between sites.
BASIC

Beginner's
All-purpose
Symbolic
Instruction
Code.
A
time-sharing computer programming language that is used
for
direct
communication
between
terminal
wunits
and
computer
Dartmouth

BATCON

BLISS

centers.

The

1language

was

developed

College.

The
Batch
controller.
control
file,
starts the
passing commands and data

job,
and
to it.

that

programming

programs

This

language

consisting

program
reads
a
job's
controls the job by

enables

only

users

declarations,

write
which

establish structure,
and expressions, which compute
values.
It
is
specifically designed
for
implementing
system software.
BOOTS

CHKPNT

bootstrap

from a SAVE

SAVE

dump

A
program
used
to
utilization of
the

file

are

a disk

later

gather
the
DECsystem~10

The

COBOL

user

can:

Change

.
.

Set breakpoints,
Continue the program,

Display

Trace

COmmon

functions

file on

for

unit

load

Dynamic

Debugging

information
on
for
accounting

data-name

the

With

COBDDT

contents

and

Oriented

data-name,

and

Language.

programming

utility program that allows the
concise
command
string
in order

programming

data

processing

user to type a short,
to cause
a
series of

to
be
performed.
COMPIL
deciphers
and
constructs
new
command
strings
for

command

program

that

actually

Several
of
the
commands
that
COMPILE, CREF, and EXECUTE.
A
program
which
listing followed

the

sections.

operations

CREF

the
and

contents,

paragraphs

Business

Technigue.

system

and/or

analysis.

purposes.

language
used
applications.
COMPIL

main

core

Gl
W N

COBOL

whose

into

billing
COoBDDT

program

produces

processes

invoke

the

COMPIL

sequence-numbered

the
the

command.

are

EDIT,

assembly

by tables showing cross references for
all
operand-type
symbols,
all
user-defined
operators,
and/or all operation codes and pseudo-op codes.

DAEMON

program

and
DATDMP

for

associated

program

for

writing

all

parts

monitor

tables

onto

disk.

dumping

the

core

data

base.

job's

core

area

SYSLIB-10
-4-

Table 1

TOPS-10 System Program Library

(Cont)

Program

Description

DDT

The Dynamic Debugging Technique program used for on-line

and

modification,

examination,

testing,

checkout,

program composition of object programs.

A program for producing directory listings of disks and

DIRECT

DECtapes.

DSKLST

A program which gives status and

statistics of

A damage assessment program that

scans

files at a given time.

disk

DSKRAT

structure

file

and reports any inconsistencies detected.

user

all

A bootstrap program used to save and restore core images

DTBOOT

magnetic

tape.

that

outputs

selected

executive mode.

DUMP

program

operates

DECtape

1in

file

portions

only

one of the various formats that can be specified by the
user.

A version

(Dynamic Debugging Technique).

Executive DDT

EDDT

of DDT used for debugging programs, such as the monitor,
in

executive mode.

EDIT

A program used

FAILSAFE

magnetic tape and
onto

save

later

version

contents back

saved

the

disk

the

contents

the

restore

disk.

File

FILDDT

to build and edit ASCII text files.

used

program

DDT

(Dynamic

used

DDT

instead
examine

Debugging

Technique).

changing

for

examining

and

file

transfer

program

A general

used

disk

file

of in core memory.
This program
a monitor for debugging purposes.

used

convert

between

various core image formats and to read and write various
DECtape directory

FORTRAN

FORmula

language

designed

for

the

arithmetic

formulas.

chemistry,

biology,

areas

many

and

standard

solving

files.

programming

scientific-type

The

language

widely

industry,

used

1in

military,

and

mathematics,

psychology,

problems

solution

their

for

procedure

engineering,

disk

procedure-oriented

TRANslator.

expressing

formats

physics,

business.
FUDGE

program

modules

GLOB

used

update

within

these

containing

one

manipulate

and

libraries.

A program used to read collections of relocatable binary
modules

library
an

which

files

have

and

alphabetical

useful

which

for

together

in order

global

for

(from

both

to generate

all

the

global

When a program is composed of many
1t

1is

and

via

modules

which

they

are

text

from the

user

and

records

alphabetical

A program that accepts

file

files)

communicate

symbols with the names
defined and referenced.

in a disk

1oaded

list

have

been

separate

cross-referenced

symbols encountered.

modules

GRIPE

libraries

modules

binary

relocatable

1list

symbols,

global

all

examination by the operations

later

staff.
INITIA

program

for

performing

particular

standard

terminal.

specific programs, such as
designated terminal.
LINK

the

system

initialization

used

spooling

initiate

programs,

on the

A program that provides automatic loading and relocation
of binary programs, producing an optional storage map,
Also, the
and performs loading and library searching.

program loads and links relocatable binary programs and
generates
DDT.

symbol

table

core

for

execution

under

SYSLIB-10
-5-

(Cont)

TOPS-10 System Program Library

Table 1
Program

Description

LINKER

A program

that combines many

independent

compilations

into a single

allows

for

Typically,

Thus,

modules.

control

combine

may

and

references

global

satisfies

input modules

purposes.

1loading

for

module

sections.

LINKING

LOADER

A program that provides automatic

loading,

relocation,

and linking of compiler- and assembler-generated object

modules.

The system program by which the system users gain access
to

the computing

LOOKFL

program

written,
MONEY

such

file,

disk

system.

the

single

of words

number

and

creation date

characteristics

the

typing

for

terminal.

A program for reading the system's time accounting file
for

and assigning a monetary charge

that

resources

and

time

the

according

each user

the

that enables

the

used

has

system.

MONGEN

the

to define

system programmer

program

dialogue

generator

The monitor

configuration

hardware

set

software

OMOUNT

A program that interfaces with the operator
handle requests concerning removable media.

order

OPSER

The

installation

individual

his

the

and

options that he wishes to select for his system.

program

SERvice

OPerator
or

single

from

control

job

operator

user

multiple

facilitates

that

terminal

initiate

several

the

allowing

Jjobs

from

his

data

terminal.
PIP

The

Peripheral

Interchange

Program

which

transfers

functions,

simple

editing

such

tabs,

magnetic

and

communication

QOMANGER

control

the

via

PLEASE

for

two-way

with

wuser

operator

reserved

functions.

the

provides

with

that

terminal

user's

tape

that

program

and

sequencing,

and compressing blanks into

trailing blank suppression,

PLEASE

another

device

I/0

standard

one

from

files

performs

operator's

the

and

commands

terminal.

by BATCON

is called

QMANGR

The Batch queue manager.

schedule jobs by computing and dynamically revising job

priorities.
QUEUE

program

system

The

that

queue

modify

list,

users

allows

the

1in

entries

delete,

add,

system

various

gueues.

QUOLST

program

REACT

RUNOFF

It can be used

each

user's

and

1list

file

quotas

the

for

number

each

program

that

facilitates

shifting,

line

Jjustification,

manuscripts

files.

list entries

the

preparation

performing
page

typed

formatting,

numbering,

case

titling,

indexing.

program

characters

delete or

file.

printed

file

free

structure.

to create, modify,

and

that

over

load

sends

multiple

the

predetermined

pseudoterminals

system

for

sequences

testing,

order

measurement,

analysis.

program

search
SOuUPp

the

simulate

SETSRC

prints

his

available

A program for maintaining administrative control

and
SCRIPT

that

structure

blocks

that

allows

the

user

list

change

his

list.

The SOftware Updating Package that consists of a set of
programs for facilitating the updating of system or user
source

files.

SYSLIB-10
-6-

Table

TOPS-10

System

Program

Library

(Cont)

Program

Description

SPRINT

The Batch
input stacker.
SPRINT
reads
any sequential
input stream,
sets up the job's control
file and data
files, and enters the job into the Batch input queue.

SYSDPY

A
variation
of
the
SYSTAT
program
which
runs
on
a
keyboard display terminal
(at up to 2400 baud).
SYSDPY
maintains
a
dynamic
display
of
system
status
by
periodically altering
lines of
the display to
replace
0ld information with the latest information.

SYSERR

SYSERR
1is
the
report
generating
portion
of
the
DECsystem-10 and DECSYSTEM-20 error detection, recovery,
and reporting system.
As an error
is detected by the

monitor,
pertinent
appended

SYSTAT

various
hardware
to

which

lists

the

command

program

information
aspects

disk

the

that

on
the

pieces
of
information
describing
and software status are gathered and
file.

SYSERR

contents

this

the

user-mode

file

the

program

direction

string.
outputs

the

system

system,

as
a

user's

terminal

whole,

selected

on
job

status

selected
or

set

jobs.
TECO

A sophisticated Text Editor and Corrector
program that
allows
simple
editing
requests,
character
string
searches,
complex
program editing,
command
repetition,
and text block movement.
files consisting of ASCII

UMOUNT

program

requests

for

user

concerning

TECO editing
characters.

interfacing
removable

for

media.

performed

the

handling

TOPS-10

TOPS-10 COMMAND LANGUAGE
The TOPS-10 Operating System

The conventions
Table
order

1.
The
individual
in Table 2.

used

Note

that

complete

the

commands.
format

Depending

may

particular

commands

command

manual

task.

the

supports

illustrate

the

required.

System Commands
long

are

arranged

format

has

determine

addition,

the

abbreviation does

not

the

been

circumstances,

Refer

approximately

commands.

these commands are described

shown

only

£for

part

DECsystem—-10

arguments

commands

can

the

this

Operating

required

conflict with

alphabetical

for

abbreviated

any other

command

abbreviation.

Many

command

place
than

strings

allow

alphanumeric

one

file

specification.
1.

Two
The

When

wild-card

characters.

directory

such wild-card

asterisk

positioned

the

characters

These

characters

wild

characters

referenced

card

are

for

appropriate

used

permit

single

available:
an

entire

context,

field.

it means:
Examples

any

filename or

any

project

number

extension

number

(also,

any

* EXT

programmer

subfile

FILNAM,*

[*,1164]

[27,%*]

direc-

tory)
Note

that

*.*

The

question

character.

provided

and

the

[*,*]

can

are

mark
be

does

also

used

not

possible.

wild

card

single

mentioned

above,

any

field

the

field.

for
It

means:

any

character.

Examples:
* EX?

addition,

number,

the

FI???2.EX?

?2ILNAM.*

the directory
programmer

name

number,

[27,11672]

can

both

[*,1127?]

specified
numbers

with

the

project

missing.

ERROR MESSAGES
TOPS-10

operating

DEBUG

job.

The

condition

and

progress,

JOB

condition
the

use

not

pregress,

the

system

message

the

priority

stopcode

acts

the

same

interrupt

the

codes.

harmful

1interrupt

a JOB

both

the

console

and

aborts

the

job.

stopcode

acts

progress,

then

JOB

the

the
or

any

console
1is

stopcode.

progress,

integrity

message

terminal

stop

out

priority

user's

interrupt

immediately

jeopardizes
a

types

continues.

DEBUG

sends

interrupt

four

priority

monitor

terminal

monitor

systems

current

the

job.

terminal

The
and

prioraity

STOP

stopcode.

STOP

This

condition

jeopardizes

the

integrity

system.
The monitor sends a message to
aborts all jobs, and reloads the system.

HALT

going

This
to

condition

anything

system

executes

operator

Table
TOPS-10

1lists

initiate

and

operating

serious
might

that

affect

1instruction

the

console

the

monitor

stored

and

entire

terminal,

data.

waits

not
The

for

the

reload.

describes

system

that

HALT

the

(6.03

the

STOP

release).

CODES

associated

with

TOPS-10
-8

TOPS-10 Command Conventions

Table 1
Convention

Description

adr

arg

A letter or
the command.

word

control
file

The

the

core

Decimal

octal

address.

name

specifying

control

number

file

blocks

the

desired

for

the

nK)

function

Batch

System.

pages

(nP)

core.

dev:

Any

physical

(e.g.,
devn:

Any

phsical

device

number

unit

logical,

normally)

The colon must be

DTA3:).

devSnn:

(or

MTA:).

The

name

colon

must

three

one

the

The
[directory]|

letter

and

colon must be

designation

identifying

The

number

(e.g.,

(e.qg.,

followed

LPTS2:).

disk

area.

[proj,prog]

which

sub-file directory path branching

from a

UFD

identifies a
UFD.

followed

numerals

three characters

station

name

included.

This designation can be
identifies

characters

three

included.

Any physical device name of

device

included.

square

particular

the form

[proj,prog,sfd,sfd,

brackets

are

...]

which

required.

drives

The physical drives on which a unit 1s to be mounted.

file.ext

Any

legal

followed

filename

from

dot

particular

and

one

six

extension

characters

zero

three

characters.
file

The

structure

input

spec-|

ifications

name

File

specifications

user's

job

jobname

name

1lh

Left half of

logdev:

Any

file

entered

number

into

one

name

usually

the

assigned

disk

files

the

system

system.

the

characters

name

from

one

the

log

six

The colon should be

included.

The

file

given

created

the

system.

number.

letter.

a file.

being

alphanumeric

characters.
name

job

queues.

a 36-bit word.
device

A three-digit octal

<nnn>

for

six

logical

Batch
n

This

processed.

jobn

log

disk.

etc.

DSKB,

form DSKA,

the

code

indicating

the protection
of

This code can appear only on the output side

command

string

and

must

enclosed

angle

brackets.
prog

program

name

Right half

One

Ttape

idf

six

or
string.

switches

A one

si1x

character

fewer

characters.

36-bit word.
used

modify

identifying

the

command

name recorded

on a

DECtape.
text

message

terminal.

sent

the

designated

user

TOPS-10
-9-

Table

Convention

Description

[user

number]

(Cont)

TOPS-10 Command Conventions

numeric

identification

the purpose of gaining

usually

two

numbers

assigned

the

user

for

It is

access to the system.

separated

comma.

An equal sign used in command strings to separate the
outpgt

the

specification

(left

input specification

the

equal

sign)

from

reallocates

space

(right of the equal sign).

TOPS-10 Command Summary

Table 2
Command

Description

ALCFIL

ALCFIL<KCR>

space

Allocates

for

a new file or

for an existing file in one contiguous region on the

disk.
ASSIGN

ASSIGN dev:logdev:<CR>

ASSIGN devSnn:logdev:<CR>

ASSIGN devn:logdev:<CR>

Allocates
operator

ATTACH

I/0

device

intervention.

ATTACH jobn

the

user's

job

without

[user number]<CR>

Detaches the current job and connects the terminal to
the specified detached job.

BACKSPACE

BACKSPACE MTAn:m FILES<CR>

BACKSPACE MTAn:m RECORDS<CR>

Spaces a magnetic tape backward the specified number

of
CCONTINUE

files

records.

CCONTINUE<LCR>

Continues the program from the point at which it was

interrupted, but leaves the terminal in monitor mode.

CLOSE dev:<CR>

Terminates I/0 currently in progress on the specified

device, performs the CLOSE UUO, but does not release
the

COMPILE

device.

COMPILE dev:file.ext [directoryl]/S,...<CR>

Produces relocatable binary files
the specified

CONTINUE

source files.

(.REL files)

for

CONTINUE<LCR>

Continues the program from the point at which it was
interrupted.

CoprY

CcorPYy

dev:

=
<nnn>
[directory]l
file.ext
1idT
Ttape
[directoryl,
file.ext
[directoryl,

dev:file.ext

Transfers files from one I/0 device to another.
CORE

CORE core<CR>

Types or modifies the amount of core assigned to the
user's job.

CPUNCH

/s, ...<CR>
CPUNCH jobname = dev:file.ext [directoryl

Places entries into the card punch output spooling
queue.

TOPS-10
_lo_

Table

Command
CREATE

CREATE

Summary

(Cont)

new

file

disk

for

creation

with

LINED.

CREF<CR>

Lists

generated

CSTART

Command

file.ext<CR>

Opens
CREF

TOPS-10

Description

LPT:

any

DEBUG

command.

CSTART

adr<CR>

cross-referenced

1listing
files
LOAD,
EXECUTE,
or

COMPILE,

Begins

execution of a program that was either loaded
with
a GET
command
or
interrupted,
but
leaves
the
terminal in monitor mode.

D(eposit)

adr<CR>

Deposits
DAYTIME

DCORE

Types

the

DCORE

dev:file.ext

Writes
DDT

current

core

the

date

user's

core

area.

followed

the

time

user's

core

area.

day.

[directory]<CR>

image

file

the

saved

the

program

the

beginning

loaded

with

the

program

DEASSIGN

dev:<CR>

Returns

devices

monitor's

logical
DEBUG

DDTLKCR>

Copies

DEASSIGN

information

DAYTIME<CR>

DEBUG

counter

starts

DDT

6.01).

assigned

pool

and

address

(automatic

the

availlable

the

DDT

was

the

user's

job

devices

and

clears

names.

dev:file.ext

[directoryl/s,

...<CR>

Produces
relocatable
binary
files
(.REL
files)
for
the
specified
source
files,
loads
the
.REL
files
along with an appropriate system debugging program,
and prepares for debugging.
DELETE

DELETE

dev:file.ext

Deletes
DETACH

files

[directory],

DECtape

affecting
DIRECT

the

terminal

status

Lists

dev:file.ext

[directoryl
/s,

disk.

the

from
the

the

[directory]

DSK

DISMOUNT

dev:/s,

Returns,

via

DSK

entries

disk

specified
R

for

job without

dev:file.ext

the

specified

...<CR>

the

operator,

devices

the

monitor's

usage

for

the

assigned

pool

the

available

jobn<CR>

Types

DTCOPY

...<CR>

directory

user's
Jjob
devices.

current

job.

arguments.

DISMOUNT

...<CR>

DETACH<KCR>

Disconnects

DIRECT

from

combined

job.

structures

DTCOPY<KCR>

Copies

cédntents

blocks

one

DECtape

compares

two

bootstrap

loader.

DECtapes,

DECtape

and

to another, clears the
clears
the
directory,

and/or

1loads

and

writes

TOPS-10
-11-

Table

TOPS-10

Command

Description

DUMP

DUMP/S

Command

Summary

(Cont)

...<CR>

Writes a core image file, analyzes
and provides printed output.
DUMP

file

written,

files

specified

R DUMPLCR>

Provides printable output

data

and modes.

forms

E(xamine)

the

adr<CR>

Examines

the

specified

core

location

the

user's

area.

EDIT

file.ext{CR>

EDIT

Opens

the

EOF

specified

file already existing

LINED.

with

editing

on disk

for

EOF MTAn:<CR>

Writes

end-of-file

mark

the

specified

magnetic

tape.

EXECUTE

EXECUTE dev:file.ext

the

specified

begins
FAILSAFE

source

...<CR>

files

binary

files,

loads

(.REL

files)

for

.REL files,

and

outputs

the

execution.

R FAILSAFE<KCR>
Saves

FILCOM

[directoryl/s,

relocatable

Produces

and

restores disk

files.

two

R FILCOM

Compares

versions

file

any

differences.

FILE

FILE arg,

Ttape

Provides

remote

idT,

DECtape-to-disk
FILEX

and

file.ext,

the

via

control,

disk-to-DECtape

...<CR>

operator,

R FILEX<KCR>

Converts

between

wvarious

core

1image

formats,

reads and writes various directory formats.

FINISH

transfers.

FINISH

and

dev:<CR>

Terminates

I/O

progress

the

specified

device

and performs the RELEASE UUO and DEASSIGN command.

FUDGE

FUDGE<CR>

a library REL file by reading a temporary
file generated by a previous COMPILE, LOAD, EXECUTE,
or DEBUG command containing the /FUDGE switch.

Creates

FUDGE?2

R FUDGE2<KCR>

Updates

files containing

relocatable

binary programs,

and manipulates the programs within these files.

GET

GLOB

GET dev:file.ext

[directory]

from

Loads

core

image

does

not

begin

execution.

core<CR>

the

device,

but

produce

specified

GLOB<KCR>

Reads

multiple

alphabetical
symbols

binary

files

cross-referenced

encountered.

1listing

all

global

TOPS-10
-12-

Table

TOPS-10

Command

Description

GRIPE

R GRIPE<KCR>

HALT

Accepts

text

file

the operations

for

job

INITIA

the

job

area.

data

well

user

and

(Cont)

records

disk

staff.

stores

Control

at monitor

the

program

used

can be

counter

user

the

level

level,

HELP dev:prog<CR>

or HELP dev:*<CR>

Outputs
useful
features.

documentation

various

system

INITIA<KCR>
Performs

standard

terminal

JCONT

from

Summary

HALT<CR> or TC
Stops

HELP

Command

issuing

system

the

initialization

for

the

command.

JCONT jobn<CR>
Continues

the

specified

because of a call

job

was

state

to the device error message routine

(HNGSTP)
.

KJOB

LABEL

KJOB

logfile =

up access

LABEL

DEV:

identifier onto a DECtape.

LIST dev:file.ext

[directoryl/s,

LOAD dev:file.ext

the

specified

...<CR>

files on the line printer.

[directoryl/s,

relocatable

Produces

system.

idT<CR>

Lists the specified
LOAD

structures/s<CR>

the

Ttape

Writes an
LIST

file

Gives

files

...<CR>

files

(.REL

and

1loads

the

user's

binary

files)
.REL

for

files

generated.

LOCATE

LOCATE nn<§R>
Establishes, logically,

job

specified

station.
LOGIN

user

MAKE

number/s
to

access

Provides

dev:file.ext

...<CR>
the

system.

[directory]
<CR>

Opens a new file on disk
MOUNT

for creation with TECO.

MOUNT dev:logdev:/s drives<CR>

Allocates

I/O

device

the

user's

job

via

the

operator.

OPSER

R OPSERKCR>

Provides
PJOB

multiple

job

control

Outputs
the
Jjob
number
currently attached.
PLEASE

PLEASE

dev:prog!

Provides

the

PLOT

from

single

terminal.

PJOBLKCR>

PLOT

two-way

which

the

terminal

1is

text<CR>

communication

between

the

user

and

operator.

jobname =

Places
queue.

dev:file.ext

entries

1into

the

[directoryl/s,

plotter

output

...<CR>

spooling

TOPS-10
-13-

TOPS-10 Command Summary (Cont)

Table 2
Command

Description

PRESERVE

PRESERVE file.ext,

the

Renames

...<CR>

file.ext,

the

with

files

specified

protection inclusively ORed with 100.
PRINT

standard

/s, ...<CR>
PRINT jobname = dev:file.ext [directoryl
Pleaces entries into the line printer output spooling
queue.

PROTECT

...<CR>

PROTECT file.ext<nnn>, file.ext<nnn>,

Sets

the

files

specified

requested

the

protections.
PUNCH

yl ...<CR>
PUNCH jobname = dev:file.ext [director/s,

Places

spooling

QUEUE

into

entries
queue.

the

paper

tape

punch

output

QUEUE queue name:jobname = input specifications<CR>
Enters items into the specified system queue.

QUOLST

R QUOLSTKCR>

Types the used, loggin-in quota, and logged-out quota
for each file structure to which the user has access,
followed by the number of free blocks left on that
structure.

file.ext

core<CR>

Loads a core image from the system device

(SYS:)

and

starts it at the location specified within the file.

REASSIGN

REASSIGN dev:jobn<CR>

Gives the specified device to the designated job.
REATTA

R REATTAKCR>

terminal.

specified

REENTER

job

the

Transfers

terminal

the

REENTER<KCR>

Starts

the

program

specified by the program.

RENAME

current

from the

alternate

RENAME new = old, new = old,

entry

point

...<CR>

Changes the name and protection of one or more files
disk.

on DECtape or

RESOURCES

RESOURCES<KCR>

the

Outputs

names

all

available devices

(except

for terminals and PTYs), all file structures, and all

physical units not in
REWIND

file structures.

REWIND dev:<CR>

Rewinds a magnetic tape or DECtape.
RUN

RUN dev:file.ext [directory] core<CR>

Loads

a core

image

from

the

specified

device

and

starts it at the location specified within the file.

SAVE

[directory]

core<CR>

SAVE dev:file.ext
Writes a core image of the user's core area on the
specified device.

SCHED

SCHED<CR>

Outputs the schedule bits set by the last SET SCHED
command.

TOPS-10
-14-

Table

TOPS~-10

Command

Description

SEND

dev:text<CR>

SEND

jobn

Command

Summary

(Cont)

text<CR>

Provides

a
communication.

one-way

interconsole

line

SET

BLOCKSIZE

SET

BLOCKSIZE

Sets

the

dev:nnnn<CR>

default

blocksize

for

the

specified

magnetic

tape.
SET

BREAK

SET

BREAK

adr

SET

BREAK

arg,

SET

BREAK

NONE<KCR>

Sets

address

conditions
SET

CDR

SET

CDR

Sets

arg,

break

used

program

with KI1l0

CPU

filename

SET

CPU

CPxn<CR>

SET
SET

CPU

ALL<CR>

SET

CPU

ONLY

Sets

for

the

only

|SET

the

specification

available

DENSITY

Sets

specified

card-reader

spooling

CPxn<CR>

CPU

and
requires
privilege word.
DENSITY

only.

CPxn<CR>

1077)

SET

according

processors

file<CR>

the

intercept.
SET

...<CR>

for

the

job.

multiprocessor
certain

bits

This
set

DSKFUL

density

SET

DSKFUL

ERRORKCR>

SET

DSKFUL

PAUSE<CR>

Controls

(1055,
in

the

dev:nnn<CR>

default

for

the

specified

magnetic

user

has

exhausted

his

tape.

SET

command

systems
be

the

job

when

the

disk

space.

SET

DSKPRI

SET

DSKPRI

n<CR>

Sets

the priority for the job's disk operations (data
transfers
and head positionings).
Requires certain
bits to be set in the privilege word.

SET

HPQ

SET

HPQ

Sets

n<CR>

the

job.

SET

high

priority

Requires

privilege

scheduler

certain

bits

run

queue

set

PHYSICAL{SET

PHYSICAL

LIMIT

SET

PHYSICAL

GUIDELINE

is
SPOOL

designated.

SET
SET

SPOOL
SPOOL

...<CR>

processors

specifies
GUIDELINE

only.

ALLK<KCR>

NONE<KCR>

devices

dev:,

devices

dev:,

...<CR>

or deletes devices
for this job.

from

the

list

SETSRCLKCR>

the

list.
TIME

with KI1l0

SPOOL

Manipulates

SET

Used

SPOOL

the

CORE<KCR>

dev:,

SET

spooled
SETSRC

dev:,

SET

Adds

core<CR>

Specifies when the job will go virtual and
a guideline for
the page fault handler
1f

SET

for

word.

SET

TIME

Sets

the

job's

list

system's

n<CR>

central

processor

time

limit

for

the

job.

TOPS-10
-15-

TOPS-10 Command Summary (Cont)

Table 2
Command

Description

SET TTY

SET TTY NO arg<CR>
SET

arg

TTY

Sets properties to be associated with the terminal.
SET

VIRTUAL

LIMIT

Specifies

the limit on the virtual memory for

SET

arg,

processors only.

Used with KI10
SET

WATCH

core<CR>

SET VIRTUAL LIMIT

WATCH

...<CR>

arg,

ALL<CR>
NONE<CR>
WATCH NO arg, arg,

SET WATCH
SET WATCH

SET

a job.

...<CR>

Sets the output of incremental job statistics.
SKIP

SKIP MTAn:m FILES<CR>

MTAn:m RECORDS<CR>
SKIP MTAn:EOT<CR>
SKIP

the

Moves

designated
logical

SSAVE

end

core

START

command,

START

adr<CR>

forward

the

area

the

core<CR>

[directory]

image

When

the

user's

core

it is loaded with a GET

the high segment will be sharable.

execution of
the GET
with

Begins
loaded

tape

records

tape.

specified device.

RUN)

files

SSAVE dev:file.ext
Writes

magnetic

specified

number

(or

a program either previously
interrupted while
command or

running.
SUBMIT

SUBMIT jobname = control

file,

log file/s<CR>

Places entries into the Batch input queue.
SYSTAT

SYSTAT/S<CR>
Prints

the

about

information

current

status

the

system.
TECO

TECO dev:file.ext

[directory]
<KCR>

Opens the specified file for editing with TECO.
TIME

TIME

jobn<CR>

Outputs the
TPUNCH

running

entries
Places
spooling queue.
TTY

time for

the

specified

job.

TPUNCH jobname = dev:file.ext [directoryl/s,

TTY NO
TTY

paper

the

into

punch

tape

...<CR>
output

arg<CRr>

arg<CR>

Sets properties to be associated with the terminal.
TYPE

TYPE dev:file.ext

[directory]/s,

Types the specified
UNLOAD

...<CR>

files on the user's terminal.

UNLOAD dev:<CR>

Rewinds

and

unloads

the

specified

magnetic

tape

DECtape.

USESTAT

USESTATLKCR>

Prints

1information

the

terminal

concerning

the

user's job. Control T can be used at user level also.

TOPS-10
-16—

Table

TOPS-10

Command

Description

VERSION

VERSION<KCR>

Outputs

the

Command

version

Summary

number

(Cont)

the

specified

program

terminal.
WHERE

WHERE

ZERO

the

dev:

Clears

the

Table

station

number

directory

TOPS-10

the

Stop

specified

Code

STOPCD

Name

Type

XTCSER

28B*

DEBUG

FSXKON

DA28

41IF

DEBUG

D85INT

S5WE

DEBUG

RS04
DC75

D6SINT

is not fancy
wrong PDP-11

6DD

DEBUG

D6SINT

6DI

DEBUG

Unexpected

DEBUG

Comment

broken

gave

too

gave

much
TOl0

too

much

D76INT

6MS

DEBUG

DC76

6QF

message

DEBUG

DC76

D78INT
D78INT

queue

8BI*
8IN*

JOB
JOB

222222222222
Input character

D78INT
D78INT

8NC*
8ON*

JOB

Not

JOB

D78INT

8PI*

JOB

character
Positive IOWD

D60INT

8VI

DEBUG

DN60

8VI*

DEBUG

Version

DEBUG

AAOQ

JOB

Access

allowed

AAOQ

JOB

Access

allowed

COMMON

AD#

STOP

CPU

FILFND

AES

JOB

Abnormal

end

FILIO

AHB

DEBUG

Already

have

address

Already

ANU

DEBUG

FILFND

AQC

DEBUG

Already

VMSER

APF

DEBUG

Allocated

AR1

DEBUG

structure
by

page

us
free

ASKDEC

returned

ARD

STOP

Runaway

driver

STOP

Attempt

return
return

CPOPJ1

KLSER

ARF

STOP

Attempt

FILFND

ARM

DEBUG

Access

rings

all

QUESER

AVE

DEBUG

Already

have

DTESER

BAA

STOP

Buffer

already

BAC

DEBUG

Bit

JOB

Block

already

FILIO

BAO

DEBUG

Bit

already

BAZ

DEBUG

Bit

already

D85SINT

BBS

STOP

DTESER

BDN

STOP

Bad

byte

Bad

device

TAPUUO

BFO

DEBUG

Better

NETSER

BFU*4

DEBUG

BUSY

FILIO

BIN

STOP

I/0

there
dormant

one

zero

one
up

negative

FILUUO

BMR

JOB

Block

missing

COMMON

BNF*

HALT

BOOTS

not

found

FILUUO

BNR

JOB

Block

not

RIB

DEBUG

Block

not

there

FILFND

BNT

*Deleted

Version

+Deleted

7.01

Version

6.03A

number

find

page
page

size

fouled

free
free

messed

clear

already

FILIO

list

ARF

BAD

error

buffer

owned
own

off

KISER

FILFND

not

off

DTESER

CORE1

code

parity

have

FILIO

ONCMOD

not

from

block
RIB

core

dormant

KISER

not

data

incorrect

already

free

count

PDP-11

KLSER

HALT

count

monitor

wrong

AAD

AHS

indirect

short

Output

FILFND

data
interrupt

full

enough

D78INT

code

direct
DONE

D76INT

ONCMOD

device.

Summary

STOPCD

6ID*

device.

[directory]
<CR>

Monitor
Module

D6SINT

the

dev:<CR>

Outputs

ZERO

TOPS-10
-17-

Table

STOPCD

Monitor

TOPS-10

Stop Code

Summary

Module

Name

Type

Comment

CORE1l

BNZ

DEBUG

Bit

CP1SER

BPS

HALT

Both

COMCON

BRC

DEBUG

Bad

return

SEGCON

BSN

STOP

Bad

segment

XTCSER

BSY*

DEBUG

DA28

busy

FILIO

BWA

JOB

Block

went
power

not

zero

processors

C#p*

DEBUG

CPU

CIN*

DEBUG

CPU

1 NXM

FILUUO

CAO

DEBUG

Cluster

REFSTR

CAS

HALT

Could

not

COMMON

CD#

STOP

CPU

cache

core

failed?

address

FILIO

CDA

DEBUG

CDD

JOB

Cannot

CLOCK1

CFP

JOB

Cannot

find

ONCMOD

CGS

HALT

Cannot

get

CLOCK1

CIB

CPU

CIF

DEBUG

RC10

CIO

DEBUG

CFP

CLO

STOP

Chunk

copy

does

FILFND

CME

DEBUG

CFP

CMs

DEBUG

parity

not

disconnect

space

directory

agree

device

PDB
STR

data

interlocks

SCNSER

odd

allocate

MSGSER

FHXKON

CMPBIT

number

away

COMMON

REFSTR

stopped

from

CP1SER

VMSER

(Cont)

STOPCD

not

block

broken

FANCY

odd
links

modulo

error

CORE1l

must

SEGCON

CMU

STOP

Core

messed

SCHED1

CNA

STOP

Core

not

skip

FILUUO

CNE

DEBUG

Cluster

not
copy

avallable
even

FILUUO

CNF

DEBUG

core

KILOCK

CRW

STOP

resource

COMCON

CSA

DEBUG

Cannot

FILIO

CSE

STOP

Checksum

SEGCON

CSP

JOB

Cannot

store

NETMCR

Cuo

STOP

Cannot

use

NETSER

CWN+

DEBUG

Core

FILIO

DBZ

DEBUG

DEPLPC

bit

FILUUO

DCR

DEBUG

DELRIB

CPOPJ

FILUUO

DDS

DEBUG

DELRIB

did

FILUUO

DER

DEBUG

DELRIB

error

COMNET
FILIO

DFU
DHA

DEBUG
DEBUG

Device
Do not

unrecognized
have AU

FILIO
FILIO

DHB
DHD

DEBUG
DEBUG

Do
Do

have
have

FILIO

DND

DEBUG

Drive

not

DTESER

count

set

not

access

path

zero

dispatch
went

negative

zero
return

not

skip

return

buffer
DA

dual-ported

DNE

STOP

Data

FILUUO

DNF

DEBUG

DDB

DTESER

DNH

STOP

Driver

DTESER
QUESER

DNI
DNL

STOP
DEBUG

DTE not
DEO not

FILUUO

DNR

DEBUG

DELRIB nonskip

FILUUO

DNS

DEBUG

KLSER

DOM

STOP

not

allowed

error

allocation

not
not

found

wrong

not

even

found
not

hungry

ready
interlocked

not own MM

return
resource

KSSER

COMCON

DPL

DEBUG

Directory page

COMCON

DPN

DEBUG

Directory page nonexistent

VMSER

DSS

DEBUG

DLTSP skipped

EFI

STOP

Eleven

ERRCON

EPO

DEBUG

Exec

REFSTR

ERB

DEBUG

Error

TAPSER
REFSTR
ONCMOD

ERF
ERH
ERM

STOP
DEBUG
DEBUG

ERP really fouled up
Error reading HOME.SYS
Error reading MFD

NETMCR

DRN

DTESER

ERD

ONCMOD

*Deleted

+Deleted

in Version

Version

STOP

DEBUG

7.01

6.03A

Data

lost

request want
function

negative

illegal

PDL overflow
reading BAT block

Error refreshing disk

error

TOPS-10
-18~-

Table

Monitor

STOPCD

Module
REFSTR

ONCMOD
FILFND

TOPS-10

Stop

Code

Summary

Name

STOPCD
Type

Comment

ERP

HALT

Too

ERS

DEBUG

Error

reading

ESS

JOB

Empty

system

many

ERRCON

EUE

DEBUG

Exec

REFSTR

EWB

DEBUG

Error

REFSTR

EWH

DEBUG

(Cont)

retrieval

pointers

SAT
search

list

UUO

error
writing block

Error

writing HOME blocks
while refreshing

ONCMOD

EWR

DEBUG

Error

FILUUO

FAD

DEBUG

VMSER

FCZ

DEBUG

File already dormant
Funny core bit zero

FILIO

FDP

DEBUG

Fixed

head

ERRCON

FEM

HALT

Fatal

error

NETSER

FFU

STOP

VMSER

FIP

DEBUG

Free

page

SCNSER

FLE

STOP

Free

list

DTESER

FNG

STOP

Function

VMSER

FON

fouled

device

positioned

monitor

up
in

use

empty
no good

VMSER

FOP

STOP
STOP

Funny
Funny

VMSER

FPE

DEBUG

KILOCK

FPF

STOP

Funny page must exit
Page on free list is

KISER

FPI

STOP

Free

page

KLSER
KILOCK

FPI

STOP

Free

FPN

STOP

Free

REFSTR

HBE

DEBUG

Error

XTCSER .

HDS

STOP

222222227

FILIO

HIF

DEBUG

Hole

ONCE

HNF*

HALT

High

segment

FILIO

HWU

JOB

Hard

wrong

CLOCK1

IBI

JOB

Intercept

FILIO

IBZ

JOB

I/0

UUOCON

ICL

JOB

Illegal

SEGCON

ICN

DEBUG

Incore

address
address

overlaps
overlaps

use

page

use

page

not

free

HOME

blocks

file
not

illegal

zero

channel

count

IDC

HALT

Impossible

KISER

IEZ

DEBUG

IOWD

equals

KLSER

IEZ

DEBUG

IOWD

equals

TAPSER

IFI

STOP

Illegal

IFU*+4

DEBUG

Interrupt

FILIO

ITP

number

negative

ONCMOD

NETSER

found

unit
block

block

not

found

reading

next
previous

drum

condition

function

flag

interrupt

unrecognized

STOP

I/0

KISER

IME

JOB

Illegal

memory

reference

from

exec

KLSER

IME

JOB

Illegal

progress
memory

reference

from

exec

COMMON

I0P

CPU

I/0

DTESER

IPA

STOP

Illegal

post

address

KLSER

IPC

CPU

Illegal

page

failure

VMSER

IPF

DEBUG

VMSER

IPM

DEBUG

Illegal

VMSER

IPN

DEBUG

HIPC

FILUUO

IUN

DEBUG

Invalid

UUOCON

JAC

DEBUG

Job

ONCMOD
SYSINI

JDJ
JIT

DEBUG
HALT

JFFO did not jump
Job in transit

page

error

failure

trap

KSSER
use

JIW*+

STOP

Job's

FILIO

JNC

DEBUG

Job

JINE*

STOP

JBTADR

COMMON

KAF

STOP

Keep

DPXKON

KDS

DEBUG

KONEC2

SYSINI

KID

not

unit

data

CORE1

number
clobbered

wrong

core

not

equal

alive

did

Controller

is down
free

KNF*

STOP

Control

not

KR3*+4

STOP

Message

too

TAPSER

KSW

DEBUG

Controller

status

TAPUUO

LDN#*

DEBUG

Tape

DDB

Version

+Deleted

in Version

7.01

6..03A

CORTAL

skip

XTCSER

*Deleted

failure

not

D85SINT

label

MEMTAB

found

area

JDA

not

free

pointer

page

CLOCK1

HALT

page

large
not

wrong

found

code

TOPS-10
-19-

Table

TOPS-10

Stop

Code

Summary

Monitor

STOPCD

Module

Name

Type

Comment

ERRCON
FILUUO

LN1
LND

STOP
DEBUG

Line not there
Logical name not

QUESER

LNF

DEBUG

Lock

not

FILIO

LNP

DEBUG

Last

pointer

not

SCNSER

LNS

STOP

Line

not

set

there

ERRCON

LNT

STOP

Line

not

FILUUO

LPU

JOB

Last

pointer

MAU*

DEBUG

Master

already

NETSER

MBE*+

DEBUG

Monitor

buffer
missing

METCON

MCM

DEBUG

MCDB

FILFND

MCN

DEBUG

Mount

count

DTESER

MDM

STOP

Master

MHB

DEBUG

Must

found

CP1SER

FILIO

(Cont)

DTE

have

unit

pointer

change

unlocked
exists

negative

missing
buffer

ONCE

MIW

STOP

Memory

VMSER

interleaving

MIZ

DEBUG

MEMTAB

ERRCON

Monitor

wrong

zero

MMN *

HALT

ERRCON

memory

MMP *

NXM

HALT

Monitor

memory

KILOCK

parity

MMR

STOP

Moving

monitor

page

FILIO

MNA

DEBUG

Monitor

SYSINI

buffer

MNM

not

STOP

Monitor

ERRCON

MNR

HALT

KILOCK

Master-11

MPN

STOP

Monitor

REFSTR

MSR

HALT

NETSER

MY1

STOP

Incorrect

NETSER

MY2

DEBUG

Already

DEBUG

Garbage

NETSER

MY 4

NETSER

MY5

DEBUG

CPNSER

Garbage

N4cC

JOB

Not

FILUUO

NAP

JOB

CLOCK1

Not

NCA

STOP

NCM

IPCSER

just

core

STOP

DF1l0C

DEBUG

DDB

CLOCK1

NDP

DEBUG

Not

CLOCK1

NDS

STOP

Null

ONCE

NED*

HALT

message

code

for

DDB

job

pointer

job

did

SAVEGET

exec

DDT
extended

NER

DEBUG

FILUUO

NET

DEBUG

extended

NEV

STOP

exec

FEDSER

NFB

STOP

front-end

DTESER

NFC

STOP

free

DEBUG

RIB

RIB
virtual

front-end

NFS

DEBUG

first

SYSINI

slot

NFU

DEBUG

first

unit

not

DTESER

NIS

STOP

DTE

TAPUUO

NIV

STOP

Null

NJT

STOP

Null

job

NMB

DEBUG

Need

monitor

has

ONCMOD

NMC

HALT

NETSER

NMF *

DEBUG

monitor

REFSTR

NMU

DEBUG

FILUUO

NNF

DEBUG

NMB

not

FILUUO

NNR

JOB

ONCMOD

NNU

DEBUG

Not

SCNSER

new

NOT

DEBUG

SCHED1

NPC

STOP

units
found

unit
operator terminal

PDB in core
pointer in DDB

NPD

DEBUG

NPF

STOP

page

parity

HALT

Not

DEBUG

*Deleted

in Version

7.01

+Deleted

in Version

6.03A

buffer

RIB

FILIO

NPI

vector
TTY

core

KILOCK

NPJ

state

interrupt

ERRCON

DATMAN

block

drive

indirect

FILIO

KLSER

memory

device

core

VMSER

FEKINT

pages

UUOCON

NFD

back

pointer

for

JOB

NDC*

some

cached
assigned

NDJ

found

gave
this

address

ONCMOD

RPXKON

running
not

core

SCNSER

FILUUO

not

requested
memory

RIB

checked

four

error

not

available

nonexistent

page

second

error

PDB

for

free

instruction
job

TOPS-10
-20-

Table

TOPS-10

Stop Code

Summary

(Cont)

Monitor
Module

STOPCD
Name

STOPCD
Type

Comment

KISER

NPN

STOP

Nonexistent page not

free

KLSER

NPN

STOP

Nonexistent

free

KISER

NPP

STOP

progress

KLSER

NPP

STOP

progress

ERRCON

NPU

STOP

Null

PDL

underflow

VMSER

NRF

DEBUG

SWPLST

not

page

not

really

fragmented

FILUUO

NRM

JOB

Next RIB missing

ONCMOD

NRS

DEBUG

RIB

VMSER
FILFND

NSE
NSL

DEBUG
JOB

No
No

SWPLST entry
such search list

SAT

REFSTR

NSS

DEBUG

space

for

FILIO

NSU

DEBUG

such

unit

SCHED1

NTE

STOP

Not

SAT

processor

COMNET

NTF

STOP

resource

FILFND

NUB

JOB

UFB

block

UFB

error

dqueue

mixed

error

FILUUO

NUE

DEBUG

XTCSER

NUI*

DEBUG

Nonexistent

FILUUO

NUN *

DEBUG

NMB

FILUUO

NUP

DEBUG

No unit change pointer

VMSER

NUS

DEBUG

unit

NETSER

NVP

STOP

Not

DTESER

NWD

STOP

No doorbell

FILIO

NXU

DEBUG

Nonexistent

QUESER

OFU

JOB

O-blocks

fouled

VMSER

OlF

DEBUG

Only

fragment

D8SINT

NETMCR

NWA

use

one

unit

count
for

valid

wrote

one

OIP*

DEBUG

Output

FILUUO

ONC

DEBUG

O0dd-numbered

ONCE

OVA

HALT

Out

VMSER

P2L

STOP

Page

too

COMCON

PAO

STOP

Page

already

DTESER

PCI

STOP

Previously

interrupt

negative

swapping

PCB

anything

unit

progress
cluster

virtual

address

space

low

out
checked

function

code

illegal

IPCSER

PCN

NETSER

FILIO
VMSER

KISER

DEBUG

Packet

count

PCW

STOP

PCB

PDA

DEBUG

Pointers

PEW

DEBUG

PAGTAB

count

negative

wrong

with

entry

PEZ

STOP

PAGPTR=0

KLSER

PEZ

STOP

PAGPTR=0

KILOCK

PFA*

STOP

Page

free

VMSER

PFC*

STOP

Page

VMSER

PFL

DEBUG

Piece on

VMSER

different

already

free

core

free

out

PFR

DEBUG

Piece

LOKCON

PFS

STOP

Page

PGL

STOP

Pages

free

ERRCON

PIE

STOP

Priority

VMSER

PIF

DEBUG

Page

VMSER

in working

free

got

list

COMCON

range

segment

lost

interrupt

DEBUG

Page

KISER

PIP

STOP

progress

PIP

STOP

progress

VMSER

PIW

DEBUG

Page

CLOCK1

PJO

DEBUG

Requeue JOB

not

last

set

working

FILIO

PLP

DEBUG

Past

KISER

PMU

STOP

PAGTAB

messed

KLSER

PMU

STOP

PAGTAB

messed

FILIO

PNE

DEBUG

Pointers

not

pointer

equal

FILFND

PNM

DEBUG

Physical

name

KILOCK
VMSER

PNP
PNW

STOP
DEBUG

Page
Page

present
in working

CLOCK1

POP*

sTOP

POR

STOP

Process

SEGCON

*Deleted

in Version 7.01

error

free

KLSER

addresses

wrong

not
not

mismatch

progress

out

range

set

TOPS-10
-21-

Table

STOPCD

Monitor

TOPS-10 Stop Code

Summary

(Cont)

STOPCD

Module

Name

Type

Comment

FILIO

PQE

DEBUG

Position queue

KLSER

PRF

CPU

Page

refill

KISER

PSF

STOP

Page

KLSER

PSF

STOP

Page

KLSER

PTH

HALT

Parity

trap

halt

DTESER

PTL

Packet

too

large

KLSER

PTP

HALT

Page

table parity

CORE1

PTT

DEBUG

Past

top

SEGCON

PUF

JOB

Path

FILUUO

PUN

DEBUG

PPB

DTESER

QEF

STOP

Queue entry full

SCNSER

QWC

DEBUG

SCNSER

RCC

STOP

Range

TAPUUO

RDN

DEBUG

Regular

FSXKON

RDP

DEBUG

RS04

SEGCON

SCHED1

RBQ*

STOP

free

segment

free

UUO
use

empty

failure

segment

table

failed
count

wrong

negative

CPU

Requeuing to beginning of queue
checked

DDB

chunk

not

does

not

found

position

RDS

STOP

Remap did

not

skip

ERRCON

REH

HALT

Recursion

error

TAPSER
FILIO

RFU
RHN

STOP
DEBUG

Recovery fouled up
Reread HOME block count

XTCSER

RIE*

DEBUG

Remote

DPXKON

RIF

DEBUG

RP10

D8SINT

RIP*

DEBUG

Read

SCHED1

RJZ

STOP

Requeue

JOB

zero

ONCMOD

ROU

HALT

Ran

units

DEBUG

Retrieval

pointer

Returning

page

interrupt
not

handler

fancy

progress

out

ONCMOD

RPM

VMSER

RPZ

NETMCR

RTM

STOP

Requested

too much

FILIO

RWD

DEBUG

Returning

wrong

ERRCON

SAC

DEBUG

Strange APR condition

CLOCK1

RSJ

STOP

DEBUG

Requeue

same

mismatch

zero

Jjob

unit's

CP1SER

DEBUG

Scheduler

COMMON

SB#*

STOP

CPU

FILUUO

SBT

DEBUG

Should

not

VMSER

SBW

DEBUG

SWPLST

bits

XTCSER

SCB*

DEBUG

Spurious

SEGCON
FILUUO

SCR*
SER

DEBUG
JOB

Segment could not be
SETDDO error return

FILUUO

SFI*

JOB

STR

FILIO

SFU

DEBUG

Swapper

fouled

SCHED1

SHU

DEBUG

Swapper

hung

SIN

DEBUG

VMSER

already

SBus

unlocked

truncating

wrong
bit

count

negative

SLF

DEBUG

SWPLST

full

FILUUO

SLM

DEBUG

list

missing

FILFND

SLO

JOB

list

overflow

VMSER

SLZ

DEBUG

SLECNT

SWPCNT
Try'to

is zero
messed up
recover from

SCHED1
SCHED1

SMU
SMU

DEBUG
DEBUG

SNF

STOP

Segment

SWPSER

SNI

DEBUG

Swapping

NETMCR

SNS

sSTOP

NTRPCB

SCHED1

SOD

STOP

Space

ERRCON

SOR

STOP

Segment

not

set

progress

disk

out

range

FILUUO

SPM

JOB

Second

pointer

CP1SER

SPS

HALT

Second

processor

ONCMOD

SRE

DEBUG

SAT

SWPSER

SRO

STOP

Space

ran

SWPSER

SSD

STOP

Swap

space

KILOCK

SSO0

STOP

Segment

SWPSER

SWN

DEBUG

SQREQ

*Deleted

Version

7.01

error

found

not

read

inconsistent

VMSER

KILOCK

error
be

CONI

free

SWPCNT

negative

error

read

missing

stopped

error
out
disappeared

swapped

went

out

negative

TOPS-10
-22-

Table
Monitor

STOPCD

TOPS-10 Stop Code Summary

Module

Name

Type

Comment

DTESER

T1E

STOP

TOll

XTCSER

TCO*

DEBUG

22222227272

XTCSER

TCl*

STOP

?2?222227272

XTCSER

TC2*

DEBUG

XTCSER

TC3*

DEBUG

2222222272
2222222272

XTCSER

error

TC4*

DEBUG

2222222727

XTCSER

TC5*

DEBUG

2222222727

XTCSER

TC6*

DEBUG

XTCSER

TCT7*

STOP

222222272

FILUUO

TCI

DEBUG

Truncation

FILIO

TMP

DEBUG

Too

REFSTR

TMR

(Cont)

STOPCD

HALT

2?272222272

many

check

inconsistent

pointers

Too

many

retrieval

ONCMOD

TMU

HALT

Too

many

units

TSKSER

TND*

DEBUG

DTESER

TNI

STOP

Tasks not defined
TOl0 not idle

DTESER

TQP

STOP

Found

DTESER
FILIO

TXE
UDE

STOP
DEBUG

TOl0
Unit

FILUUO

UDM

JOB

UFD

FILUUO

UFI

STOP

Unit

D8SINT

uIiD

DEBUG

Unexpected

ONCMOD

UIF

HALT

TOll

queue

error
does not

data

Unit

count

UIL

STOP

UUO

UIP*

DEBUG

Not

not

inconsistent

input done

already

ERRCON

point

exist

missing

free

XTCSER

pointers

file

interrupt
unique

STR

level

interrupt

FILUUO

UNF

DEBUG

UFB

COMMON

UNJ

DEBUG

Illegal

VMSER

UNL

DEBUG

UPMP

DBSINT

UoD*

DEBUG

Unexpected

FILUUO

UpPC

JOB

Unit change pointer clobbered

KLSER

UPF

HALT

Unexpected

FILIO

UPI

DEBUG

Unit

pointer

status

null

not

TAPSER

USwW

DEBUG

Unit

VMSER

WAD

DEBUG

WSBTBL

DTESER

WCN

STOP

Wrong

NETSER

WEM

STOP

William
stop

found

page

and
CPU

fail

illegal

wrong
AABTBL

discrepancy

Matson

general

code

WPT
WTP

HALT
DEBUG

Wrong
Wrong

XPW

STOP

Exchanged

SCHED1

XTH

DEBUG

XJOB

too

REFSTR

ZBC

DEBUG

Zero

blocks

7.01

done

number

LOKCON

in Version

UUO

output

KLSER
CLOCK1

*Deleted

job

last

parity trap
type of PDL
page

went

away

high
per

cluster

network

PIP
-23-

GENERAL

PIP

INFORMATION

(Peripheral

used

Interchange

transfer

files

can also perform
transfers.
R

PIP

<CR>

Monitor

Prompt

Exit

Notes

Program)

between

editing

and

commmand

indicates

PIP

utility program which

standard

magtape

load

PIP

return

peripheral

control

and

start

ready

monitor

devices.

functions

PIP

during

file

PIP

commands

command mode

This module is a summary of PIP intended for
use by field engineers.
Refer to the Software
Notebooks for a complete description.

2.,

Wild

characters,

the

asterisk

mark

(?)

used

may

(*)

filename

and

question

extension

construction.

Octal
constants may be used
in filenames
and
extensions.
The
octal
constant
must
be
preceded by a pound sign (#) and delimited by a
nonoctal digit or a character.

4.,

1Including

will

PIP

CONVENTIONS

command

following

PIP
A

"/X"

file)

switch

transfer

the

specified
the

AND

source

destination

files

command

file

into

string

separately

device.

the

command

(concatenate)

one

large

file

SWITCHES

conventions

and

switches

PIP

Command

Conventions

Table

PIP

Command

String

Table

PIP

Acceptable

Table
Table

4
5

File Protection Codes
UFD and SFD Protection Codes

Table

PIP

Control

Switch

Summary

Table

PIP

Magtape

Switch

Summary

String

command

(=)

device.

Table

PIP

each

destination

are

described

the

tables.

Command

sign

Excluding
the
"/X"
switch
from
string will cause PIP to combine

the

COMMAND

the

cause PIP

(file

and

Delimiters

Device

Mnemonics

Format

string

consists

terminated

two

fields

separated

carriage

return

<CR>.

A PIP command string which is used
devices has the following format:
DESTINATION

transfer

SOURCE

files

equal

between

I/O

<CR>

dev:file.ext/s/slp,pnl<nnn>Ti1dentT=dev:file.ext[p,pn]
<KCR>
A

PIP

command

magtape)

has

string

the

which

following

does

not

transfer

files

(i.e.,

move

still

required

format:

DESTINATION

<CR>

MTA3:
(MU) =<CR>

The

equal

sign

delimiter

and

terminator

commands formatted in this manner
DESTINATION portion of the command

The

DESTINATION

file(s)

which

command

The

portion

consists

SOURCE

side

transferred

data

contain

PIP

one

command

one

the

characters

and

the

may

requested

describes

used.

This

the

device

and

This

portion

device

portion

any

length;

PIP

commands

operation

ALTMODE,

ESC,

used

command

data.

1in

only

describes

transferred

that

specification.

taken.

can

command

fact

from

which

the

command

may

specifications.

However,

also

PIP

the

file

command

to
file

strings may

case

receive

are

despite the
is used.

initiated

line

feed,

both

upper

normally

vertical

terminator.

and

are

lower
terminated

carriage
TAB,

return.

form

feed

PIP
-24-

Table

Convention
dev:

Either

PIP

Command

a physical

Table
[directory]

Conventions

Description

The

identifier

MFD)
of

logical

specific

within

the

system.

the

name.

directory

This

project,
programmer
Directory (SFD) names.
.ext

device

Refer

character

alphanumeric

character

alphanumeric

name

file

either

(i.e.,

UFD

identifier may consist

number

pair

and

extension

the

user

Sub

File

assigned

the

system.

file

either

assigned

identification

new

destination side of the command)
an existing
file
(when on
the

file

which

(when

the

given

the

or which identifies
source side of the

command)
.

TidentT

<nnn>

character

contents

DECtape

unit.

3-digit

either

which

User

reel

code

more
File

mounted

which

destination

Directory.

specified

assigned

files

Refer

Table

a
and

respectively.

Switches

a PIP
e.g.,

name

DECtape

protection

one

specified

Table

which

affect

the

transfer.

All

switches

command string must be preceded by a
/sw/sw - or
enclosed
in parentheses

(sw/sw) .

Refer

Table

for

1in

slash e.g.,

summary

PIP

switches.

Table
Delimiter

PIP Command String Delimiters

Use and Description
The

colon
in

represent

the

example

i1dentifies

enclose

the

DTAl

and

SFD

[40,633]

manner

used

are

brackets
numbers

and

device

the

device

specified

commands.

DIRECTORY

For

follows

example,

PIP

Square

delimiter

For

name.
DTAl:

names

(1f

SFDs

user

are

used).

[40,633,SFD1,SFD2...SFDn]}

which

DIRECTORY

numbers

can

written.

Angle

code
file

brackets
a

user

directory

used

enclose

protection

which 1s to be assigned to either a

programmer
numbers,
For example:

(UFD).

and

file

and

project

user

separate

used

are

Commas

must

file

<057>)

(e.g.

specification

groups.

dev:[{40,633)=dev:file.ext,fi1le.ext<CR>

name

DECtape

wup-arrows

(e.g.

1i1dentifier

assigned

within

set

enclosed

TMACFLST)
.
A

period

filename

delimiter

must

extension.

the

first

The

form

flag

character

extension

1ndicate

the

(.ext).

symbol

presence

octal

filename

extension.

number

exclamation

symbol

specification.

control

the specified

This

used

When

may

returned

file

constant

filename

used

delimit

used,

the

symbol

the

(or program)

monitor

from

to be loaded

file

causes

PIP

and

run.

function 1s provided as a user convenience
eliminate the need for several control entries.

PIP
-25-

Table

PIP Command String Delimiters

(Cont)

Delimiter

Use and Description

the
separate
to
used
be
sign must
egqual
The
destination and source portions of a PIP command.

()

Parentheses
are
used
to
enclose
magnetic
tape
options, PIP control switches, and one or more PIP
function switches.
The form of a command employing

is:

parentheses to enclose a series of switches
dev:file.ext(swlsw2..swn)=...<CR>

PIP Acceptable Device Mnemonics

Table 3
Mnemonic

Device

CDP
CDR

Card Punch
Card Reader
Console TTY

CTY
DTA
DSK

DECtape

Disk

Packs

DPx
FXx

DIS
LPT
MTA
OPR

Fixed-Head

Display
Line Printer
Magnetic Tape
Operator Terminal

PTP

Paper Tape Punch

PTR

Paper

PLT
PTY

Plotter
Pseudo-TTY

Tape

Reader

SYS

System Library

TTY

Terminal

TMP

Pseudo-device TMPCO

Code

Permitted Operations

Change

Table

read,

File

protection,

Protection Codes

rename,

write,

update,

append,

execute.

Rename,

write,

update,

append,

Write,

update,

append,

read,

execute.

Update,

append,

Append,

read,

Read,

Execute

read,

execute.

only.

access

privileges,

UFD permits.

File

may

looked

the

PIP
-26-

Table
Code

Access

The

CREATEs

UFD

Permitted

and

not

Protection Codes

permitted.

directory may

The

SFD

Operations

are

read

file.

permitted.

directory

may

read

file

and

CREATEs

are

read

file

and

LOOKUPs

are

permitted.

LOOKUPs

The

are

permitted.

directory

may

permitted.
6

CREATEs

The
and

and

LOOKUPs

Switch

Description

/DX

Copy

List disk

Ignore

I/0

Image

binary

Image

processing

Punch

cards

Table

PIP

all

but

convert

List

Delete

Same

FORTRAN

specified

file

and

both

CREATEs

and

ext.

only).

must

Summary

files

processing

(filenames

(mode)

ASCII

(output

characters

device

terminal

CDP)

output.

directory.

sequence

numbers.

switch,

output

character
binary.

(this)

Rename

file.

Resequence,
by

for

list

except

increment

conversion

FORTRAN

add

assumed.

1line

printer

switches

sequence

and

Convert

format

1listing.

/B/P

meanings.

number

file;

increment

10.

Suppress

Copy

block
and

trailing

Match

Convert

count

Copy

specified

copy

all

TABs

DECtape

but

spaces

angle

files.

tape

RIMIOB

terminating

SAV

neither

out

RIM

switch

extension

paper
tape
produced

paper

RIM10B
loader

tells

PIP

files.)

transfer

directory

(<>).

spaces.
(The

specified

paper

brackets

to multiple

RMT
A
RIM1OB
transfer word)
1i1s

RTB

only.

(DTA).

Zero

Switch

DTA directory

control

permitted.

errors.

both

Control

control

are

directory may be read as
LOOKUPs are permitted.

tape

word)

paper
nor

(with
1s

tape

1s:

(with

RIM

terminating

loader

and

produced

terminating

transfer

(with
word)

PIP
-27-~

Table

PIP

Switch

Description

Magtape

(M2)

Select

200

BPI

(M5)

Select

556

BPI

density.

(M8)

Select

800

BPI

density.

(MA)

Advance

MTA

(M#nAa)

Advance

MTA n

(MB)

Backspace

MTA

one

(M#nB)

Backspace

MTA

(MD)

Advance

{(M#nD)

Advance MTA n

file.

files.

one

Even

Summary

density.

one

MTA

Switch

file.

files.
record.

records.

(ME)

Select

(MF)

Mark

Parity.

(MP)

Backspace

MTA

one

(M#nP)

Backspace

MTA

(MT)

Skip

(MU)

Rewind

and

unload

(MW)

Rewind

MTA

EOF.

logical

record.

records.

EOT.
MTA

DTA.

Examples
The

following

EXl

PIPing

are

examples

ASCII

file

commonly

from

the

used

DISK

PIP

command

the

line

strings:

printer

LPT:=DSK:ERROR.SYS<CR>

EX2

Combines

EX3

Copies

two

files

disk

into

one

file

DECtape:

DTAl:FILCOM.MAC=DSK:FILA.MAC,FILB.MACKCR>
a

paper

tape

PTP:=PTR:<CR>

EX4

Specifies

"MYFILE"

that

and

the

DECtape

receive

DTA3

each

file

copy

DTA3:TMYFILET/X=DTAl:*,
*<CR>

given

the

DTAL.

1identifier

Tops-20

TOPS-20

Table

Contents

TOPS—-20

SYSTEM

TOPS—20

COMMAND

FORMAT .. eeoeeavesnoocoscsssssccanssossossscscssasoccscccsocnsesl

ERROR

PROGRAM

LIBRARY .. eeeeteccccoscocssasencsocnosnsocsel

LANGUAGE. .t cceeveecccsosessssssscccccacncccncscnssl

MESSAGES .. eeeeeeesoccosssososssssassssssecsssoscsccsaccscesel

TOPS-20
TOPS5-20

BUGHLT

Symbols

and

Command

SUMMALY.eeeoeeoeossscssssssscscscscsscscsscsssssacd

and

BUGCHK

Control

Names

and

CharaClerSe.escccsccocscccccccosenosl
DesSCriptionS...eeeeeeccecccooococsssal?

TOPS-20

TOPS~20

SYSTEM

PROGRAM

LIBRARY

The
programs
in TOPS-20
described in Table 1.

Table
Program
ACTGEN

System

TOPS-20

Program

System

Library

Program

are

1listed

and

Library

Description
ACTGEN

is an account generator
program
used
to
install an account validation data base for

and

TOPS-20

wvalidating

primarily

for

use

Wheel

operator

accounts.

the

system

must

ACTGEN

1is

Manager's

documented

the

create
use by

and

operator.

manager

capabilities

ACTGEN,

BOOT

LIBRARY

intended

enabled

DECSYSTEM-20

System

Guide.

BOOT

KL10

memory.

used

run

load

the

load the TOPS-20 monitor from disk into
On
normal
system
startup,
BOOT
is
loaded
and
started
by
RSX20F,
and
will
TOPS-20 monitor without operator intervention.

BOOT

also

automatically

system

BOOT

CHECKD

responsible

malfunction,

documented

for

dumping

later

the

following

DECSYSTEM-20

Software

DECSYSTEM-20

Operator's

KL10

documents:

Installation

structure,

use;

this

lost.

CHECKD

can

CHECKD

allows
can

also

finds

CHECKD

optionally

used

all

disk

compute

release

completely

CHKPNT

has

documented

three

functions:

major

account

statistics

Set

monitor

checkpoint

interval

Copy

the

system-generated
accounting file.

CHKPNT

System

Utility

documented

the

converts

CREF

takes

language

the

listing

documented

DDT

assembly
breakpoints as

various

DLUSR

about

each

directory

file.

The

program

directories

which

Guide

and

later,

DUMPER

documented

DECSYSTEM-20
a

program

using

magtape.

file

system

who

wish

transfer

then

rebuild.
DLUSER

the

Guide.

permit

archiving

produced

the

printable

User's

Guide.

debugger.
DDT
symbolic patching

identifying

system

use
in

and

this
the

the

System

for

well

into

datatypes.

obtains

can

language

a
to

utilization

data

a
final,
appended.

DECSYSTEM-20

symbolic

up to 8
manipulation

same

the

files

CREF

space

disk

for
used

Operator's

system

processors
and
produces
with cross reference tables

and

DUMPER

TOPS-20

listing

allows

DLUSER

modified

disk

accounting

file

the

DECSYSTEM-20

Compile

files

DDT

the

pages
space.

structure
also

which

disk
lost

rebuild

table
or
to
scan
the
directory
specified
disk
address.
CHECKD may
create new file structures.
CHECKD
Guide,

space

the

this

bit

CREF

Guide

checks TOPS-20 disk file structure and bit table
consistency.
In
the
process
of
checking
the

for

CNVDSK

after

CHECKD

directory

CHKPNT

memory

analysis.

event

DECSYSTEM-20

Manager's

saving

and

information

places

file

create
a

the

system

Operator's

Guide.

restoring

disk

files

It is used by operations personnel for
maintenance,
and may be
employed
by
users
to
keep
certain
files
on
magtape
and/or

them

between

systems.

LIBRARY

TOPS- 20

Table 1

TOPS-20 System Program Library

Program

Description

DX20LD

DX20 Microcode

EDIT

and

edit

S0S

(Cont)

Loader

line-oriented

text

files,

function

and

editor

which

resembles

command

used

the

create

TOPS-10

editor

structure.

FE is a utility for file transfers between the TOPS-20
file system and the FILES-11 file system.
It handles
protocol
for
the
FE device
such
that
FE:
can be
addressed as a FILES-11 device, usually through 11 PIP.
CAUTION

The FE device is intended for use only
in software development and updating
procedures by knowledgeable people.
Use
without
proper
caution
may
produce
unpredictable results.

FE depends on the existence
which
should
reside
on

of the RSX-20F task T20ACP,
the
=-11
file
system
as

T20ACP.TSK.

Use of FE and file conversion procedures are described
in the Guide To Using the FE Device, USEFE.MEM.

FILCOM

The

FILCOM

program

between

them,

compares

two

With

FILCOM

you may

compare

both

word

word.

differences

files.

FORMAT

FILCOM

binary

files

FORMAT

provides

the

verifying

RPO0O4,

configured

identical

format

diagnostic,

GALAXY

compares

ASCII

files

mechanism

RPO05,

RH20s.

DDRPI.

files

for

RPO06

was

GALAXY

and

Spooling

Batch

DECsystem-10 and DECSYSTEM-20.
necessary

spooling
required

(excluding

Program

batch

processing

3 consis.s of

What

QUASAR

and/or

that

pack

are

1in

the

using

Central

mode

the

only.

Subsystem

GALAXY comprises

operating

and all queue management
for those functions.

GALAXY Release

and

FORMAT runs during timesharing only,
stand-alone

the

packs

the

binary

line

created

and

formatting

while DDRPI can FORMAT

software

files

produces

that

outputs

1line

disk

FORMAT
one

and

the

systems

and

input

task

following

for

all

the

software)

and

output

scheduling

programs:

Does

queue

GALAXY system

manager,

task

scheduler,

and

controller

BATCON

Batch

LPTSPL

Lineprinter

job processor

output

SPRINT

Card

input

QUENCH

Timesharing

reader

spooler

(unspooler)

stacker/spooler

users'

interface

the

GALAXY

system

OMANGR

Interface

INFO

System Utility for

LINK

LINK
is

the

linking

module

for

FOROTS,

BASIC,

etc.

Inter-Program Communication
loader

overlay handler

for

the DECSYSTEM-20.

OVRLAY

the DECSYSTEM-20.

LINK
and
OVRLAY
are
documented
in
the
DECSYSTEM-20
User's Guide and in the DECSYSTEM-20 LINK User's Guide.
MACRO

Symbolic Assembler

MACSYM

Symbol

Parameter Files

TOPS-20

LIBRARY

-5~

Table

TOPS-20

System

Program

Library

(Cont)

Program

Description

MAIL

is a program which allows users to send messages to
users,
Messages sent by MAIL are stored
in the
receiver's disk directory so that they may be referenced
when convenient.

MAIL

other

MAIL

its

MAKDMP

depends

stated

the

programs

tasks.

Also,

INFO

the

and

MAILER

perform

program

RDMAIL

used

message

recipients

MAIL

documented

the

TOPS-20

User's

Guide.

file

for

memory

system

image

Create

DUMP.EXE

read

messages.

crash.

system

MAKLIB

MAKLIB is used to update and index .REL files.
MAKLIB
will insert, delete or replace modules.
It is also used
to
index
FORLIB.REL
and
LIBOL.REL
to
speed
up
the
loading process.

MAKLIB

MAKRAM

files.

MAKRAM

MAKVFU

documented

program

the

commands

MAKVFU
is
a
program
Vertical Format files.

DECSYSTEM-20

generate

are
to

described

generate

MAKVFU

MAPPER

Performance
Symbol

MOUNTR

Labeled

MTBOOT

Tape

OPLEAS

LP05

commands

tape

RAM

MAKRAM.HLP.
Direct

are

Access

described

tool

Files

handler

Bootstrap

OPLEAS

tuning

Parameter

Guide.

translation

MAKVFU.HLP.

MONSYM

User's

LP20

the

users

program

running

operators

are

that

PLEASE.

queued;

for

operator

action

via

the

TMOUNT

enables

the

operator

talk

Requests

for

contact

with

the

thus

and

the

know

user

that

can

the

type

request

will

be
received even if the operator is currently busy.
OPLEAS
also handles structure and tape mount requests submitted

PA1050

RA1050

file
any

the

UUO

simulator

mapped

that

gets

executes

all

TOPS-10

and

TOPS-20

are

queued;

PLEASE

runs

documented

PTYCON

user

REAPER

Disk

RDMAIL

thus

space
is

the

conjunction

multiple
provides

messages

the

Its

simulate

from

the

space

function

them

job
the

user

with

the

with

(PTY)

control

means

maintenance
program

which

messages

have

from

RDMAIL

Record

Management

request

will

User's

Guide.

controller.

from

allows

single

terminal.

converse

with

and

number

times

when

output

utility
which

been

the

documented

type

OPLEAS.

TOPS-~20

to control the manner
from the subjobs.

can

and
know that
the
request
operator is currently busy.

pseudoteletype

subjobs and
is received

RDMAIL

address

UUO.

a
facility
for
one
user
at
a
time
to
operator.
Requests
for
contact
with
the

PLEASE

PTYCON

UUOs
JSYSs.

Guide.

produced

the

for
operator
action
received even if the

into

User's

provides

operator

PTYCON

commands.

TOPS-10

appropriate

talk

SMOUNT

TOPS-20

intercept

PLEASE

the

PAT.MAC.

and

documented

program

the
PLEASE

EXEC

OPLEAS

the

Services

allows

sent

file

user

him,

read

always

the

reads

MAIL.TXT.
DECSYSTEM-20
for

User's

BASIC-PLUS-2,

Guide.

COBOL-74

TOPS- 20

LIBRARY
-6-

Table 1
Program

RUNOFF

TOPS~20 System Program Library

RUNOFF will format
RUNOFF is a text-processing program.
input text, generate tables, build lists, handle page
RUNOFF allows a user to make all
and section numbering.
sorts of changes to the text of a document and still
produce a clean,

well-formatted

RUNOFF is documented
SETSPD

result.

in Getting Started with Runoff.

SETSPD is a privileged system program which processes
many
sets
doing,
so
in
and,
file
3-CONFIG.CMD
the
initial parameters about the system such as initial line
speeds, system logical names, and magtape logical to
physical

SPEAR

(Cont)

Description

correspondences.

SPEAR is a library of functions that sorts, evaluates,
and reports on events recorded in the local system event
file.

SYSJOB

controlling

for

program

SYSJOB

system

background

It is normally started only by job 0, and

programs.

An
creates additional processes and jobs as necessary.
operator or other privileged job may pass commands to
(1E) SPEAK to affect the
SYSJOB via an exec command
the

status

SYSJOB

background

documented

Guide under

the

(TE)

programs.

the

TGHA

MF20 on-line diagnostic/utility

Video

UETP

User Environment Test Package

ULIST

Text

DECSYSTEM-20

Operator's

SPEAK command.

Editor

user and
1listing
a mechanism for
ULIST provides
The listing may be directed to
directory information.
ULIST
the printer, the user's terminal, or to a file.
will provide information on user and directory groups,
directory numbers, quotas, and protections, and will
list

user

passwords

desired.

VERIFY

Installation verifier

WATCH

WATCH is a system program
system statistics
various
request.
A user can
thus
performance with

this

which provides a
1list of
run times upon
Jjob
and
periodically check
system

utility.

The following unsupported software
(binary and source)
1is
distributed with TOPS-20 and is provided on an "as 1is" basis
without DIGITAL warranty express
Utility

implied.

Accounting

USAH20

Requires FORTRAN/COBOL/SORT License

SYSDPY

System

DDT11

Debugging

Performance

tool

for

USAG20

USAGE.OUT

Tool

for FE communication software

Editor

SED

Screen

ALU

Source Control

REDIT

Source

REV

File Manipulation Utility

BLIS10

BLISS-10

Compiler

FEDDT

Debugger

for

Edit

Utility

front-end

dumps

TOPS-20

TOPS-20 COMMAND LANGUAGE
The
TOPS-20
Operating
System

commands.

These

commands

Special
symbols
and
described in Table 1.
COMMAND
TOPS-20

FORMAT
commands

supports

are described

control

use

the

approximately

in Table

characters

following

basic

used

TOPS-20

are

format.

COMMANDS (guide word)ARGS (guide word)ARGS
(.. .<CR>
The

base

(ESCAPE
return

command

KEY).

and

The

each

argument

command

string

delimited

altmode

terminated

carriage

<CR>.

ERROR MESSAGES
Table 3 lists and

and

BUGHLTS

was

taken

describes

associated

from

complete
1list
for
printed by typing

Table

SYSTEM,

most

commonly

operating

TOPS-20

~cne

Two

Symbols

control

to monitor

Prompt

and

Control

characters

system

may

Characters

will

return

sign

indicates

the

and

ready

commands.

level

command

and

carriage

Prompt

subcommand

single

terminal

single

command

the

level.

list

(2013).

command

double

subcommands
<CR>

BUGCHKS

The

operating

return

typed

command name causes the monitor
level for the command named.

used

system.

MONITOR

PS:<SYSTEM>BUGSTRING.TXT<CR>

Description

, <CR>

the

TOPS-20

given

Character

BIG

any

many

with

TOPS-20

sign

and

following

enter

indicates

1level

monitor

the monitor

ready

subcommand

only.

carriage

return

terminates

command

terminates

subcommand

subcommand.
<CR><CR>

double

and
3S)

carriage

returns

return

the monitor

guestion

mark

typed

command

the

subcommand level will cause the
list of the available commands.

question

command

all

mark

will

characters

command

monitor

following

the

monitor

subcommands

a
to

level

partially
print

which

typed

list

begin

with

guide

word

the

typed.

question

cause

typed

cause

commands

level.

the

mark

typed

monitor

following

list

the

will

possible

arguments.

(altmode)

(ESCAPE)

question

the

user

there

command,
remaining

mark

1is

the

characters

command

partially

error

the

ambiguity

pressing

the

printed

has made

ESCAPE

and

monitor

typing

the

indicates

command.

partially

key
first

will

typed

cause

guide

word

the
of

printed.

typed

command

ambiguous

cause

the

terminal

ESCAPE

key

wi1ill

ESCAPE

key

1is

also

used

causes

the

pressing

bell

ring.

The

argument

printed.

and

guide

terminate

word

TOPS-20
-8-

Table 1

TOPS-20 Symbols and Control Characters

Character

Description

RUBOUT

The RUBOUT or

DELETE

character

Typing

a control W will cause

Typing

will

cause

the

entire

command

Typing a control R will
line to be reprinted.

cause

the

current

command

Typing

The

typed

key will

cause

control

to be deleted.

line

the

last DELETE

to be deleted.

be deleted.

a control O will

exclamation

the

last

field

typed

stop the

current printout.

mark

used

delimit

following a command.
This is useful
messages during a KLINIK linkup.

for

text

sending

TOPS-20 Command Summary

Table 2
Description

Command
System

DELETE

(Cont)

Access

ATTACH

Commands

Connects your
See

DETACH

terminal

DETACH,

also:

Disconnects

your

to a designated

terminal

without affecting

the job.

See

UNATTACH

also:

ATTACH,

from

the

DISABLE

Returns a privileged user to normal

ENABLE

Permits

See

also:

privileged

also:

users

system information.

LOGOUT

Relinquishes access to

UNATTACH

Disconnects a terminal from a job;
to be the terminal you are using.
See

status.

access

Gains access to the TOPS-20 system.

See

job

and

change

DISABLE

See

current

ENABLE

confidential
See

job.

UNATTACH

also:

LOGOUT

also:

system.

the TOPS-20

also:

ATTACH,

it does not have

DETACH

Information Commands
DAYTIME

Prints

INFORMATION

Provides information about your job,

the

current date

errors,

system

SYSTAT

Outputs

status,

computing

and

time of

many

day.

files, memory,

other

users

system

summary

and

parameters.

available

and

resources,

Terminal Commands
ADVISE

Sends whatever you type on your terminal
to a job connected to another terminal.
See

BREAK

RECEIVE

also:

BREAK,

RECEIVE,

REFUSE,

Clears terminal links and advising

links.

See

TALK

also:

Allows
from

See

ADVISE,

your

other

also:

RECEIVE,

terminal

REFUSE,

receive

ADVISE,

BREAK,

REFUSE,

Denies links and advice to your

SET

Declares certain action

also:

detected

input

links

and

advice

users.

REFUSE

See

TALK

ADVISE,

BREAK,

TOPS-20

TALK

terminal.

RECEIVE,

to be

commands.

TALK

taken when errors are

TOPS-20
-0-

Table

TOPS-20

Command

Description

TAKE

Accepts

typed
TALK

Command

commands

its

your

Links two terminals
what the other user

TERMINAL

other

user's

See

also:

ADVISE,

Declares

and

the

lets

Handling

ASSIGN

REWIND

that

doing,

hardware

the

device

for

DEASSIGN,

a
magnetic
records or files.

also:

REWIND,

Releases

also:

Writes

can

does

had

observe

not

affect

you

have,

terminal

also:

Rewinds

your

tape

drive

SKIP,

UNLOAD

any

special

job.

back

assigned

mark

magnetic

BACKSPACE,

Advances

See

any

number

device.

tape

also:

the

backward

UNLOAD

tape

one

REWIND,

magnetic

tape

source

BACKSPACE,

magnetic

SKIP,

magnetic

BACKSPACE,

tape.

its

load

records

UNLOAD

until

the

tape

wound

reel.

SKIP,

REWIND

Commands
Grants

ownership

and

group

rights

directory.
See

also:

Adds

CONNECT,

information

existing

See

also:

from

disk

specified

one

source

files

file.

Closes

file

Removes

you

from

connects

you

Copy

Duplicates

CREATE

Starts

DELETE

Marks

EDIT

also:

files

file

making

in
new

program.

directory

and

directory.

destination

file,

file.

EDIT

the

also:

open

current

specified

source
for

left

vyour

specified

file(s)

(disk
files only)
or
(all other devices).
See

EDIT

See

END-ACCESS

CONNECT

DEFINE

you

REFUSE

TOPS-20
terminal.

use

previously

completely

APPEND

user

yet

RECEIVE,

files.

ACCESS

DEFINE

end-of-file

also:

See

File Systems

ASSIGN

Positions

See

UNLOAD

each

type

inform

point.

SKIP

just

terminal.

BREAK,

Moves

See
EOF

also:

See

DEASSIGN

file,

Commands
Reserves

See
BACKSPACE

(Cont)

job.

you

characteristics

Device

from

contents

the

Summary

EXPUNGE,

Associates

for

deletes

eventual

the

deletion

specified

files

UNDELETE

logical

name

with

one

the

specified

those

file

names.

See

DIRECTORY

EDIT

Lists

the

ASSIGN

names

files

residing

information

relating

directory

and

See

FDIRECTORY,

also:

Starts

See
EXPUNGE

also:

EDIT

also:

for

changing

APPEND,

Permanently

TDIRECTORY,
an

also:

removes

DELETE,

existing

file.

CREATE
any

disk.
See

files.

VDIRECTORY

UNDELETE

deleted

files

from

the

TOPS-20
-10-

Table

Command
END-ACCESS

(Cont)

TOPS-20 Command Summary

Description

See

rights

ownership

Relinquishes

directory.

specified

ACCESS

also:

FDIRECTORY

Lists all the information about a file or files.
See also: DIRECTORY, TDIRECTORY, VDIRECTORY

LIST

Prints one or more files
or without formatting.
See

also:

PRINT,

the

line

printer

with

TYPE

Lists one or more files on the line printer.
See

also:

LIST,

TYPE

QUEUE

Places an entry into or examines a specified queue,

RENAME

Changes one or more descriptors of an existing file

SDISMOUNT

Notifies the

for

SMOUNT

the

line printer

output

queue.

specification.

is no

structure

the

date

and

See

also:

SREMOVE

SMOUNT,

also:

Lists

system that the given

needed.

longer

See
TDIRECTORY

example,

Requests

all

DIRECTORY,

FDIRECTORY,

they were

that

the

the order of

files

names of

time

last written.

structure

VDIRECTORY

made

available

the

and

requests

1its

files

marked

for

user.

See
TYPE

TMOUNT

SREMOVE

PRINT,

LIST

structure

unavailable

SDISMOUNT,

SMOUNT

removal.

also:

one

DELETE,

also:

disk

Restores

See

deletion.

EXPUNGE

tape be made available

that a magnetic

Requests
the

VDIRECTORY

also:

Makes
See

UNDELETE

SDISMOUNT,

Types the specified files on your terminal.
See

SREMOVE

also:

user.

Lists the names of all files, as well as their
protection, size, and date and time they were last
written.

See

TDIRECTORY

FDIRECTORY,

DIRECTORY,

also:

Program Control Commands
COMPILE

Translates
compiler.
See

CONTINUE

also:

Resumes
control
See

CREF

CSAVE

source

DEBUG,

program

EXECUTE,

execution
REENTER,

Saves

the

CREF

program

the

program

currently

used

by giving

and

Merges

the debugging

program and then
See also: DEBUG,
DEBUG

and

See

also:

starts

DDT,

memory

sends

that

the

current

The program

DDT,

with

DDT.

compiles

DDT.

COMPILE,

produces

format.

program,

starts
MERGE

Takes a source program,
DDT

which

automatically

a RUN command.

is saved in a compressed
See also: SAVE

DDT

interrupted

START

cross-reference listing
to the line printer.

may

appropriate

also:

Runs

the

MERGE

program

using

LOAD,

MERGE

it,

loads it with

TOPS-20
-11-~

Table 2

TOPS-20 Command Summary

Command

Description

EXECUTE

Translates,

loads,

and

(Cont)

begins

execution

program.

See

also:

COMPILE,

the

TOPS-20

FORK

Makes

GET

Loads

address

MERGE

executable

for

particular

program

from

the

specified

a program and

loads

into memory.

EXECUTE

also:

Loads an executable program into memory
it with the current contents of memory.
See

POP

work

LOAD

Translates
See

language

space.

file.
See also:

LOAD

also:

Stops

and

merges

DEBUG

copy

the

TOPS-20

Command

Language

and

returns control to the previous copy of the Command

Language.

Starts

a new copy of

Runs

system

program.

EXECUTE,

DIRECTORY

EXTENSION

BLOCK

1IN

DIRECTORY:

TOPS-20
-13-

Table 3

BUGHLT and BUGCHK Names and Descriptions

Name

Type

Description

DIRFRE

[CHK]
[CHK]
[CHK]

NAMBAD:

DIRIFB

DIRNAM
DIRPGO
DIRPG1
DIRRHB

DIRSY1
DIRSY2

DIRSY3

DIRSY4
DIRSYS

[CHK]

FREBAD:

RLDFB4:
DROCHK:

(Cont)

ILLEGAL FORMAT FOR DIRECTORY FREE BLOCK IN DIRECTORY:
ILLEGAL BLOCK TYPE ON DIRECTORY FREE LIST IN DIRECTORY:

ILLEGAL FORMAT FOR DIRECTORY NAME BLOCK IN DIRECTORY:
ILLEGAL FORMAT FOR DIRECTORY PAGE O IN DIRECTORY:

[CHK] DRHCHK: DIRECTORY HEADER BLOCK IS BAD IN DIRECTORY:
[CHK] RLDFB6: ATTEMPTING TO RETURN A HEADER BLOCK IN DIRECTORY:
[CHK] DELDL8: DIRECTORY SYMBOL TABLE FOULED UP FOR DIRECTORY:
[CHK] MDDNAM: SYMBOL TABLE FOULED UP IN DIRECTORY:
[CHK] LOOKUP: SYMBOL SEARCH FOULED UP IN DIRECTORY:

[CHK] NAMCM4: DIRECTORY SYMBOL TABLE FOULED UP IN DIRECTORY:

[CHK]
[CHK]
[CHK]

SYMBAD:

DN20ST

[INF]

ILLEGAL FORMAT FOR DIRECTORY SYMBOL TABLE IN DIRECTORY:
PREMATURELY RAN OUT OF ROOM IN SYMBOL TABLE IN DIRECTORY:
ATTEMPT TO UNLOCK ILLEGALLY FORMATTED DIR, DIR NUMBER:
UNSBAD:
ILLEGAL FORMAT FOR DIRECTORY USER NAME BLOCK IN
LOGICAL NAME DEFINE FAILED FOR FE CTY
DIRECTORY:
DTESRV- DN20 STOPPED

DRMFUL

[CHK]

DRUM COMPLETELY FULL

DIRSY6
DIRULK
DIRUNS

[CHK]

DLDEF

[INF]

DRMIBT
DRMNFR

DSKBT1

DSKBT3

RBLDST:

ULKMD2:

[HLT] DRMASN-BIT TABLE INCONSISTENT
[HLT] DRMAM~CANNOT FIND PAGE WHEN DRMFRE NON-0
[CHK] DSK BIT TABLE FOULED, CANNOT FIND FREE PAGE ON TRACK WITH NON-O

DST2SM

[HLT]

[CHK]

DISK BIT TABLE ALREADY LOCKED AT LCKBTB
SWPINI-DST TOO SMALL

DTECAR

[CHK]

CARRIER FNC WITH NO LINE NUMBER
DTESRV~ TO ~10 COUNTS DO Not MATCH

[CHK]
[CHK]

TAKTOD- ILLEGAL FORMAT FOR TIME/DATE

DTECDM
DTEDAT

DTEDEV
DTEDIN
DTEDME
DTEERR
DTEIDP
DTEIFR

DTELPI
DTEMCC

[INF]

[CHK]
[CHK]
[CHK]
[INF]

[CHK]

DTEP2S

[CHK]

DTEPGF
DTETIP

DTETTY
DTEUIF
DVCHRX

DX2DIE
DX 2DNF

ILLEGAL DEVICE

[INF] DTESRV- TO -10 IN PROGRESS ON DOORBELL
[INF] DTESRV- ZERO Q COUNT

DTEODD

DTEPNR

[CHK]

[INF]

DTESRV-DTE DEVICE ERROR

BAD INDIRECT PACKET
DTESRV-ILLEGAL FNC REQUEST
DTECHK- DTE LOST PI ASSIGNMENT

DOFRGM-DN20 DISAGRESS WITH COUNT
TAKLC-ODD BYTE COUNT FOR LINE CHARACTERS

TO10DN-PACKET TOO SMALL
DTE TRANSFER PAGE FAIL
DTESRV- INCORRECT INDIRECT SETUP

[CHK] DTETDN-TO10 DONE RECEIVED WITH NO TRANSFER IN PROGRESS

[CHK]
[CHK]
[CHK]

[CHK]
[INF]

NON-TTY DEVICE

DTESRV-UNIMPLEMENTED FUNCTION FROM 11
DVCHR1 - UNEXPECTED CHKDES FAILURE WITHIN
PHYX2 - DX20 HALTED

DX2FGS

[CHK]

PHYX2 - FAIL TO UPDATE SENSE BYTES
PHYX2 - DX20 HALTED

[CHK]

PHYX2 - ILLEGAL DATA MODE AT DONE INT
PHYX2 - ILLEGAL RETRY BYTE POINTER

DX2IDM
DX2IDX
DX2IEC
DX2IFS

[INF]

[CHK]

.DVCHR

PHYX2 - DRIVE NUMBER NOT FOUND IN UDBS
PHYX2 - FAIL TO GET SENSE BYTES

DX2FUS

DX2HLT

UNT

PHYX2 - ILLEGAL ERROR CLASS CODE
PHYX2 — ILLEGAL FUNCTION AT START IO
PHYX2 - ILLEGAL FUNCTION DURING RETRY

DX2IRF

[INF]

DX2MCF

[CHK] PHYX2 - DX20 MICROCODE CHECK FAILURE
[INF] PHYX2 - MORE TU70S THAN TABLE SPACE, EXCESS IGNORED
[CHK] DX2ERR - IS.NRT SET ON SUCCESSFUL RETRY

DX2N2S
DX2NRT
DX2NUD
DX2NUE

DX2RFU
DX2UNA
DX2UPE
DXBASD
DXBDIE

[CHK]

PHYX2 - CHANNEL DONE

[CHK]

PHYX2 — NO ACTIVE UDB AND DX20 COMPOSITE ERROR SET
PHYX2 - ERROR RECOVERY CONFUSED
PHYX2 — ATTENTION INTERRUPT AND UDB NOT ACTIVE

[CHK]
[INF]

[CHK]

DXBDMI

[CHK]

DXBFEX

[HLT]

DXBFGS

[CHK]

DXBFUS

[CHK]

DXBHLT
DXBIEC

DXBIF2

[INF]

[CHK]

[HLT]

DXBILF

[HLT]

DXBLTF

[HLT]
[HLT]

DXBMSR

PHYX2 - FAIL TO UPDATE SENSE BYTES DURING INITIALIZATION
PHYP2 ~ ASYCHRONOUS STATUS FROM NON-POSITIONING DRIVE

[CHK] PHYP2 ~ DX20B MICROCODE HALTED

DXBEUI

DXBEWC

INTERRUPT BUT NO UNIT ACTIVE

PHYP2 ~ DX20B MICROCODE IS INVALID
PHYP2 - ERROR TRYING TO INITIALIZE A UNIT
PHYP2 — ERROR PRESENT WHEN CONNECTING TO A UNIT
PHYP2 - ILLEGAL FUNCTION STARTING IO

PHYP2 — FAILED TO GET SENSE BYTES

PHYP2 - FAILED TO UPDATE SENSE BYTES
PHYP2 - DX20B CONTROLLER HALTED
PHYP2 - UNKNOWN ERROR CODE FROM DX20

PHYP2 - ILLEGAL FUNCTION STACKING

PHYP2 - ILLEGAL FUNCTION AT DONE

INTERRUPT
- LATENCY OPTIMIZATION FAILURE
PHYP2 — MULTIPLE SECTORS INDICATED IN ECC RECOVERY

PHYP2

DXBNUD

[CHK]

PHYP2 - NO UNIT ACTIVE FOR DONE

DXBTNF

[HLT]
[CHK]

PHYP2 — UNIT TYPE NOT FOUND IN TABLE
PHYP2 — TABLES TOO SMALL FOR THIS MANY DRIVES
PHYP2 - DONE INTERRUPT AND UNIT WAS NOT ACTIVE

DXBTTS

DXBUAL
DXBUNA

[CHK]

PHYP2 — ATTENTION

INTERRUPT

INTERRUPT AND UNIT WAS NOT ACTIVE

TOPS-20
-14-

Table 3

BUGHLT and BUGCHK Names and Descriptions (Cont)

Description

Name

Type

DXBZEC
EPTMPE

[CHK] PHYP2 - ZERO ECC BYTE RETURNED

EXILGO
EXPAFK

[CHK] EXECI - Interrupt during login or logout

EXPRCD
FATCDP

FATMER

FEBAD

FEBFOV
FEOCPB
FEUSTS

FILBAK
FILBOT
FILBTB
FILCCD

FILFEF
FILHOM

FILIRD

FILJB1
FILMAP
FILRID
FIXBAD

FIXBDB
FKCTNZ

FKWSP1
FLKNS
FLKTIM

FRKBAL
FRKNDL
FRKPTE

FRKSLF

GIVIMR

GLFNF
GTFDB1

[HLT] PFCDPE:

PARITY ERROR OCCURRED IN THE EPT

EXPALL: JOB 0 CFORK FAILED
[CHK] EXPALL: RCDIR FAILURE
[HLT] FATAL CACHE DIRECTORY PARITY ERROR
[HLT] FATAL MEMORY ERROR
[CHK] FEHSD~-WRONG FE

[HLT]

[CHK]
[CHK]
(CHK]
[CHK]
[CHK]

FEHSD-BUFFER OVERFLOW

FEFSYS - FAILED TO BACKUP ROOT-DIRECTORY

FESSTS-UNKNOWN STATUS
FILCRD: COULD NOT CREATE BACKUP OF ROOT-DIR
COULD NOT CREATE BOOTSTRAP.BIN FILE
[HLT] UNABLE TO WRITE BIT TABLE FILE
[CHK] Could not create directory

[CHK] Could not create Front End File System
[CHK] UNABLE TO REWRITE HOME BLOCKS IN WRIBTB
[HLT]

FILINW: COULD NOT INITIALIZE THE ROOT DIRECTORY

[HLT]
[HLT]

FILIN2: COULD NOT MAP IN ROOT-DIRECTORY

[CHK] FILCRD: No room to create standard system directories
[CHK]
[CHK]
[CHK]
[CHK]
[CHK]
[CHK]
[CHK]
(CHK]

[HLT]
[HLT]
[INF]
[HLT]

FILINW:

INDEX TABLE ALREADY SET UP FOR ROOT DIR

Could not re-write Home Blocks to point to FE Filesystem

COULD NOT RE-WRITE HOME BLOCKS TO POINT TO BOOTSTRAP.BIN
FORK LOCK NEST COUNT NON-ZERO
LOADBS-UNREASONABLE FKWSP
FUNLK-LOCK NOT SET
FLOCK-FORK LOCK TIMEOUT

AGESET-FORK NOT IN BALSET
FORK NOT PROPERLY DELETED
BADCPG-FATAL ERROR IN FORK PT PAGE
SUSFK - GIVEN SELF AS ARG
GIVOK TIMEOUT

GLREM - FORK NOT FOUND

[CHK] DSKINS: GETFDB FAILURE.

GTFDB3

[HLT] NEWLFP: GETFDB FAILURE FOR OPEN FILE.
[HLT] DSKREN-GETFDB FAILURE FOR OPEN FILE

GTFDB6

[HLT]

HARDCE

[CHK] HARD CACHE ERRORS—~--CACHE DESELECTED
[CHK] SCHEDULER ~ EXCESSIVE TIME IN HIGH PRIORITY
[CHK] VERACT — HASH VALUE OUT OF RANGE

GTFDB2

HPSCHK
HSHERR
HSYFRK

IBCPYW
IBOFNF

IDXNOS

ILAGE
ILBOOT

ILCHS1
ILCHS2
ILCNSP

ILCNST

ILCST1
ILDEST

TLDRAL
ILDRAZ2
ILFPTE

TILGDAl
TLGDA2
ILGOKM

ILIBPT
ILIRBL

ILJRFN
ILLDMS

ILLFLT
ILLGO

ILLIND
ILLTAB

ILLUUO
ILMNRF

TLOFN1
ILOKSK

ILPAG1
ILPAGN
ILPDAR

ILPID1

ILPID2
ILPLK1
ILPPT1
ILPPT3
ILPSEC

[HLT]

CRDIOA: CANNOT DO GETFDB ON ROOT-DIRECTORY

HSYS-JOB 0 CFORK FAILED

[HLT) COPY-WRITE POINTER IN INDEX BLOCK
[HLT] PILINI: ASOFN FAILURE FOR ROOT DIRECTORY IB
[HLT] FILINI - COULD NOT ASSIGN FREE SPACE FOR IDXTAB

[HLT] BAD AGE FIELD IN CSTO
(HLT] GETSWM-ILLEGAL VALUE OF BOOTFL
[HLT] PHYSIO - ILLEGAL CHANNEL STATUS AT SIO
(HLT] PHYSIO - ILLEGAL CHANNEL STATE AT STKIO
[HLT] PHYSIO - ILLEGAL CALL TO CONSPW
[HLT] PHYSIO - ILLEGAL CALL TO CONSTW
(HLT] ILLEGAL ADDRESS IN CST1 ENTRY, CANNOT RESTART
[HLT] ILLEGAL DESTINATION IDENTIFIER TO SETMPG OR SETPT
[CHK] DASDRM-ILLEGAL OR UNASSIGNED DRUM ADDRESS
[HLT] DRMIAD-ILLEGAL DRUM ADDRESS
[HLT) ILLFPT: ILLEGAL SECTION NUMBER REFERENCED
[HLT] GDSTX — BAD ADDRESS
[HLT] GDSTX - BAD ADDRESS

[CHK]
(CHK]

ILLEGAL FUNCTION FOR GETOKM CALL
BAD POINTER TYPE

IN INDEX BLOCK

[HLT] PHYSIO — IORB LINK NOT NULL AT ONFPWQ

[CHK] JFKRFH - BAD JRFN, IGNORED
[CHK] BADDMG: ILLEGAL DMS JSYS FROM MONITOR CONTEXT
[CHK] KAlQ FLT PT INSTRUCTION IN MONITOR
[HLT]

INVALID CHANNEL LOGOUT

[HLT]

ILLEGAL INDIRECT

[CHK] TABLK2: TABLE NOT IN PROPER FORMAT

KIBADU: ILLEGAL UUO FROM MONITOR CONTEXT
(HLT] ILLEGAL REFERENCE TO MON ADR SPACE

[HLT]

[HLT] MSCANP-ILLEG IDENT
[HLT] OKSKED EXECUTED WHEN NOT NOSKED
(HLT] SWPOTO-INVALID PAGE
[HLT] MRKMPG-INVALID PAGE NUMBER
[HLT] PHYSIO -~ ILLEGAL DISK ADDRESS IN PAGEM REQUEST
[CHK] CREPID: ATTEMPT TO CREATE ILLEGAL PID

[CHK] DELPID: VALIDATED PID TURNED ILLEGAL

[HLT] MLKPG-ILLEGAL ARGS
[HLT] UPDOFN-BAD POINTER IN PAGE TABLE
[HLT] BAD POINTER IN PAGE TABLE
[HLT] ILLEGAL SECTION NUMBER

TOPS-20
-15-

BUGHLT and BUGCHK Names and Descriptions (Cont)

Table 3

Description

Name

Type

ILPTN1

[HLT] MRPACS-ILLEG PTN

ILRBLT

ILSPTI

[HLT] PHYSIO - IORB LINK NOT NULL AT ONF/STWQ
[HLT] PDL-0OV IN ILLEGAL PAGE REFERENCE
[HLT] SETPT-SPTH INCONSISTENT WITH XB
(HLT] ILLEGAL SPT INDEX GIVEN TO SETMXB

ILSRC

ILRFPD

ILSPTH

[HLT]

ILLEGAL SOURCE IDENTIFIER GIVEN TO SETPT

ILSWPA

[HLT]

SWPIN — ILLEGAL SWAP ADDRESS

ILTWQ

[HLT]

PHYINT - TWQ OR PWQ INCORRECT

ILTWQP

[HLT] PHYSIO - PWQ OR TWQ TAIL POINTER INCORRECT

ILULK1

[HLT]
[HLT]
[HLT]
[HLT]
[HLT]

MULKPG - TRIED TO UNLOCK PAGE NOT LOCKED

[CHK]

PHYSIO — UNIT STATUS INCONSISTENT AT SPS

[HLT]

PHYSIO - SCHSEK - IMPOSSIBLE UNIT STATUS

ILULK2

ILULK3
TLULK4
TLUST1
ILUST2

ILUST3
ILUST4

TRIED TO UNLOCK PAGE NOT LOCKED
MULKMP - ILLEGAL MONITOR ADDRESS
MULKCR - ILLEGAL CORE PAGE NUMBER
PHYSIO - UNIT STATUS

INCONSISTENT AT SIO

[HLT] PHYSIO - CONTROLLER ACTIVE AT SPS

ILUSTS

[HLT]

ILUST6

[HLT] PHYSIO - ILLEGAL UNIT STATE AT STKIO

ILXBP

[HLT]

SETPT-BAD POINTER

PHYSIO - ILLEGAL CHANNEL OR CONTROLLER STATE AT STKIO
IN XB

IMINX1

[INF]

UNUSUAL ANI

IMINX2

[INF]

IMIERR CALLED,

IMPAB2

[CHK] ASNTBF: ASNTBF FAILED WHEN NCPLCK SET

IMPABF
IMPAFB

IMPALF
IMPAUF
IMPBLK

IMPBSC
IMPCCF
IMPCTH
IMPCUL
IMPHIF
IMPHNW

IMPIFC
IMPIFH

INTERRUPT,
CONI ANI

CONI ANI

[INF] ASNTBF FAILED
[HLT] IMPCQ: ATTEMPT TO UNLOCK BUFFER ON FREELIST
[HLT] IMPLKB: ATTEMPT TO LOCK BUFFER ON FREELIST
[HLT] IMPEIN: ATTEMPT TO UNLOCK BUFFER ON FREELIST
[CHK] SNDRFC: Sending RFC for a bad NCP link number
[INF] Message has bad size or count
[HLT] CANNCT CREATE IMP FORK
[INF] IMPNCL TOO HIGH
[INF] RECD CTL MSG FOR UNKNOWN LINK
[INF] HSTINI FAILED TO FIND HOST NAME FILE
[CHK] LHOSTN DISAGREES WITH THE IMP
[INF] ILL FMT CTL MSG
[CHK] IMPGC~IMPOSSIBLE FAILURE OF IMPHFL

[CHK]

AN20 CAUSED AN IO PAGE FAIL

[INF]

IMPOPL:

IMPLEO

[INF]

Cannot find LT entry for output message

IMPLTF

[CHK]

IMPLT FULL

IMPMSL

[INF] MESSAGE STUCK OR OVERDUE TOO LONG
[INF] PKMSG — MSG TOO LARGE

IMPMSO

[INF]

MESSAGE STUCK IN OUTPUT QUEUE

IMPMUL

[INF]
[HLT]

RECEIVED MSG FOR UNKNOWN LINK
PKMSG: NEGATIVE RESIDUAL BYTE COUNT

IMPIOP

IMPLAE

IMPMMX

IMPNBC
IMPNEA
IMPNII
IMPNMA

IMPREA
IMPREM
IMPRMI
IMPRNE

IMPRNO
IMPTMB

Link already exists

NVT RECEIVED BYTES EXCEEDING ALLOCATION
[HLT] No IMP input buffers
[INF] PKBY1: NO MSG ALLOCATION
[INF] RECD EXCESS ALL
[INF] UPBRB: Received excessive messages
[HLT] IMP ~ REGULAR MESSAGE ON IRREG QUEUE
[INF] RECD NCP ERR
[INF] RFNM OVERDUE
[CHK] NVTXGl: TOO MANY BREAKS OUTSTANDING
[INF]

IMPURT

[HLT]
[HLT]
[INF]

IMPUUO

[HLT]

IMPUXO0
IMPXBO

[INF]

IRREG MSG BUFFER OVERFLOW

IMPXUT

[INF]

Received irreg msg with unknown link or type

INCFLK

[CHK]
[INF]

Fork lock set at return to user

[HLT]
[HLT]

DTEQ- INVALID DTE SPECIFIED

IMPUBF
IMPUFB

INDCNT
INVDTE

IOPGF
IPCFKH

IPCFRK

IPCIBO
IPCMCN

IMULKB:

IMPOSSIBLE MUUO

[CHK] IMP JB0O FORK - UNEXPECTED INTERRUPT

DTESRV- BAD INDIRECT COUNT
10 PAGE FAIL

[CHK] CHKPDD: COULD NOT FIND LOCAL FORK HANDLE
[CHK] PIDINB: CANNOT CREATE FORKS FOR IPCF
[CHK] PIDINI: NOT IN CONTEXT OF JOB O
[CHK] MESREC: MESSAGE COUNT WENT NEGATIVE
PIDINI:

IPCOVL

[HLT]

IPCSOD

[CHK] GETMES:

ITRLGO

[CHK]

JONRUN

ATTEMPT TO UNLOCK BUFFER ON FREELIST

IMIP1l: ATTEMPT TO UNLOCK BUFFER ON FREELIST
IMPDV received unexpected RET

PIDS AND FREE POOL OVERLAP,

JTENQE

[HLT]
[HLT]

KLIOVF

[CHK] DTESRV-KLINIK DATA BASE TOO LARGE

JSBNIC

KPALVH

LCKDIR

IPCF WILL NOT WORK!

SENDER'S COUNT OVERLY DECREMENTED

ITRAP — Instruction trap while logging in or out
[HLT] JOB 0 NOT RUN FOR TOO LONG, PROBABLE SWAPPING HANGUP
SETPPG-JSB NOT IN CORE

JTENQ WITH BAD NSKED

[HLT] KEEP ALIVE CEASED
[HLT] ATTEMPT TO LOCK DIRECTORY TWICE FOR SAME FORK

TOPS-20
-16-

Table 3

Name

BUGHLT and BUGCHK Names and Descriptions (Cont)

Type

Description

[CHK]
[CHK]
[CHK]

LOCK BEING LOCKED WHILE OKINT

[CHK]

FAILED TO CLEAR MAPS WHEN KILLING JOB

[HLT]
[HLT)

STACK FAULT IN MONITOR

LONG DIRECTORY FILE IN DIRECTORY:
LNMLUK:

ILLEGAL VALUE OF LOGICAL NAME TABLE

INDEX

[HLT] LOCK REQUESTED OUT OF ORDER
[HLT] WRONG FORK IS RELEASING LOCK
[HLT] LUUO IN MONITOR CONTEXT
(HLT) .LBCHK: ILLEGAL LUUO FROM MONITOR CONTEXT
[HLT] MAPF41 FAILED TO SKIP
[HLT] OFN FOR BIT TABLE IS ZERO
[HLT] GETFDB: CALLED FOR NON-MDD DEVICE
[HLT] MNTBTB - BIT TABLE IS A LONG FILE
PFCDPE-UNKNOWN TRAP ON TEST REFERENCE

[CHK] MAPIDX - No OFN for Index Table File
[CHK] IRBDN2: IRBDON CALLED FOR AN ACTIVE IORB

[CHK]
[CHK]
[CHK]

GETUBF: NO QUEUED IORB'S FOR INPUT
IRBDN1: IRBDON CALLED FOR NON-QUEUED UP IORB
MTDIRO:

MAGTAPE

[HLT)
[INF]
[INF]
[CHK]
[HLT]
[HLT]

MTAINT:

INTERRUPT RECEIVED FOR NONACTIVE

[CHK]
[CHK]

NVTDET:

COULD NOT CLOSE NVT

RLNTBF:

ATTEMPT TO RELEASE BUFFER AT GARBAGE LOCATION

NOADXB

[HLT] ASNTBF: REQUEST FOR BUFFER LARGER THAN MAXWPM
[HLT] WATNOT: WAS CALLED FROM SCHEDULER LEVEL.,
[HLT] FILRFS - NEWIB FAILURE FOR BACKUP ROOT-DIR
[HLT] FILRFS - NEWIB FAILURE FOR ROOT-DIRECTORY
(HLT) MENTR — NO MORE AC BLOCKS
[HLT] RELOFN-NO DSK ADR FOR XB

NOALCM

{CHK]

ALCMES:

[CHK]
[CHK]
[CHK]

FAILED TO WRITE PRIMARY BAT BLOCK

MTMSG
NCPFUN

NEGJRT
NETBAF
NETBAU

NETDET
NETRBG
NETRBL
NETWNS
NEWBAK

NEWROT

NOACB

NOARCS

NOBAT1
NOBAT2
NOBTB

NOBTBN

UCLOCK: NEGATIVE JOBRT DETECTED
RLNTBF:

ATTEMPT TO RELEASE BUFFER ALREADY ON FREE LIST

ASNTBF:

ATTEMPT TO ASSIGN A BUFFER ALREADY IN USE

CANNOT SEND MESSAGE TO ALLOCATOR

PID for QUASAR is not valid

FAILED TO WRITE SECONDARY BAT BLOCK

FILINI - UNABLE TO OPEN BIT TABLE FILE
FILINI - UNABLE TO GET SIZE OF BOOTSTRAP.BIN FILE

NOCTY

[HLT]

UNABLE TO ALLOCATE DATA FOR CTY

NODIR1

[CHK]
[CHK]

SPLMES:

[HLT]

FILINI

NOFNDU

[HLT]

FNDUNT-CANNOT FIND DEVICE FOR JFN

NOINTR

[CHK]

ITRAP AND PREVIOUS CONTEXT WAS NOINT

NODTEN
NOFEFS

NOIORB
NOLEN

[HLT]
[HLT]

IORB

NCP FSM RECEIVED FUNNY INPUT

[INF] ARCMSG:

[HLT]

IORB OVERRUN

FAILED TO SEND MT MESSAGE TO “TAPE" CONTROLLER

DIRST FAILED ON EXISTING DIRECTORY NAME

DTESRV - NO DTE BUFFERS AVAILABLE

IN CRITICAL CASE

- UNABLE TO GET SIZE OF FRONT END FILE

SYSTEM

SETIRB - MISSING IORB
UPDLEN:

NO LENGTH

INFO FOR OFN

NOPGTO

[HLT] TTYSRV: ROUTINE CALLED FOR LINE TYPE NOT SUPPORTED
[HLT] OPNLNG: NO PAGE TABLE 0 IN LONG FILE.

NOPID

[CHK]

PIDKFL:

[HLT]

FAILED TO GET SPACE FOR MASTER DTE

[HLT]

PGMPE-NO SYSERR BUFFER AVAILABLE

[CHK]
[CHK]
[CHK]
{CHK]

CANNOT GTJFN ERROR REPORT FILE

NOMCCD

NORSXF
NOSEB2
NOSERF
NOSKTR

NOSLNM
NOSPLM
NOTOFN

NOUTF1
NOUTF2
NOXADR
NPWOPD
NRFTCL

PID DISAPPEARED

ITRAP FROM OR CSKED CONTEXT
SLNINI:

CANNOT CREATE

RELJFN:

COULD NOT SEND SPOOL MESSAGE TO QUASAR

SYSTEM LOGICAL NAME

[HLT]

UPDQF0~ARG NOT OFN

[CHK]
[CHK]

SPLOPN:

NOUT OF DIRECTORY NUMBER FAILED

SPLMES:

NOUT OF GENERATION NUMBER FAILED

[HLT]

EXTENDED ADDRESSING CONFUSION

[CHK] PHYSIO — NULL PWQ AT POSITION DONE

[CHK]

PHYSIO — NO REQUESTS FOUND FOR CYLINDER SEEKED

NSKDIS

[HLT]

DISMISS WHILE NOSKED OR WITH NON-RES TEST ADDRESS

NSKDT2

[CHK]

PGRTRP-BAD NSKED OR INTDF

OFFSPE

[HLT] UNSUPPORTED NETWORK FUNCTION
[HLT] QCHK - NO QUOTA INFO SETUP
[CHK] NO FREE JTB BLOCKS
[HLT] ARRST: File marked offline has index blk ptr
[HLT] OFFSPQ— PAGE NOT ON SPMQ

OKSKBG

[HLT]

OKSKDO — OKSKED WHEN NOT NOSKED

OPOPAC

[HLT]
[HLT]

MRETN - TRIED TO OVER-POP AC STACK

OVFLOW
OVRDTA

[INF] PHYSIO - OVERDUE TRANSFER ABORTED

P2RAEL

[CHK]

PHYH2 -~ RH20 REGISTER ACCESS ERROR READING REGISTER

[CHK]

PHYH2 - REGISTER ACC ERR ON DONE OR ATN INTERRUPT

NSPUDF

NULQTA

NWJITBE
OFFONX

P2RAE2
P2RAE3
PAGLCK

PAGNIC
PGNDEL

ASOFN - ALLOCATION TABLE OVERFLOW

[CHK] PHYH2 - REGISTER ACCESS ERR WRITING REG
[HLT] DESPT-PAGE LOCKED
[HLT] GETCPP-~-PAGE NOT IN CORE
[HLT] REMFPB-PAGE NOT COMPLETELY DELETED

TOPS-20

Table 3

BUGHLT and BUGCHK Names and Descriptions (Cont)

Name

Type

Description

PGUNDX

PH2DNA

[HLT]
[INF]

PHYH2 - DONE INTERRUPT AND CHANNEL NOT ACTIVE

PH2IHM

[CHK] PHYH2 - ILLEGAL HDW MODE - WORD MODE ASSUMED

PH2PIM
PH2WUI

PHYCH1
PHYCH2

PHYCH3

[CHK] PHYH2 - RH20 LOST PI ASSIGNMENT

[HLT] WRONG UNIT INTERRUPTED
{HLT] PHYSIO - HOME BLOCK CHECK IORB ALREADY ON TWQ

[INF]
[INF]

PHYLTF

[HLT]

PHYNIR

PHYPOE
PI1ERR

PHYSIO — HOME BLOCK CHECK IORB TIMED OUT

PHYSIO - HOME BLOCK CHECK IORB TIMED OUT BUT WAS NOT ON TWQ

PHYINI
PHYINI
PHYSIO
[CHK] PHYSIO
[HLT] PHYALZ

PHYICE

[HLT]
[INF]

PHYICA

PGUNTD-IN NESTED TRAP

- ILLEGAL ARGUMENT TO CORE ALLOC
- FAILED TO ASSIGN RESIDENT STG
-~ SCHLTM - UNEXPECTED LATOPT FAILURE

— NULL INTERRUPT ROUTINE AT OPERATION DONE

- PAGE 0 STORAGE EXHAUSTED

[CHK] UNEXPECTED UNVECTORED INTERRUPT ON CHANNEL 1
[CHK]
[CHK]
[CHK]
[CHK]
[CHK]

UNEXPECTED UNVECTORED INTERRUPT ON CHANNEL 2

PITRAP

CREPID: FREE PID LIST FOULED UP
MUTCHO: PID COUNT OVERLY DECREMENTED
[CHK] DELPID: OVERLY DECREMENTED PID COUNT
[HLT] INSTRUCTION TRAP WHILE PI IN PROGRESS OR IN SCHEDULER
[HLT] ENTERED SCHEDULER WITH PI IN PROGRESS
[HLT] PAGER TRAP WHILE PI IN PROGRESS

PM2SIO

[CHK]

PHYM2 - ILLEGAL FUNCTION AT START IO

PM8SIO

[CHK] PHYM78 - ILLEGAL FUNCTION AT START IO

PI2ERR

PI4ERR
PIGERR

PIDFLF

PIDOD1
PIDOD2
PIITRP
PISKED

PRONX2

UNEXPECTED UNVECTORED INTERRUPT ON CHANNEL 4
UNEXPECTED UNVECTORED INTERRUPT ON CHANNEL 6

[HLT]

NXM DETECTED BY PROCESSOR

PSBNIC

[HLT]

SETPPG-PSB NOT IN CORE

PSINSK

[CHK]

PSISTK

[HLT]

PSI FROM NOSKED OR CRSKED CONTEXT
PSI STORAGE STACK OVERFLOW

PTAIC

[HLT]

SWPIN — PT PAGE ALREADY IN CORE

PTDEL

[BLT] DESPT-PT NOT DELETED
[HLT] PAGE TABLE PARITY ERROR

PTMPE

PTNONO

[HLT]
[HLT]

PTOVRN

[HLT]

UPDPGS—COUNT TOO LARGE

PVTRP

[HLT]

PROPRIETARY VIOLATION TRAP

PWRFL
PWRRES

[HLT]
[CHK]

POWNER RESTART

PYILUN

[HLT]

PHYSIO - ILLEGAL UNIT NUMBER

RCVNOE

{CHK] RCVOK — NO ENTRY FOUND IN QUEUE
[CHK] RCVOK TIMEOUT - IGNORING ACCESS CONTROL JOB

PTNIC1

RCVTMR

SWPIN — PAGE TABLE NOT IN CORE
SETPTO0 - PREVIOUS CONTENTS NON-0

FATAL POWNER FAILURE

RELBAD

[CHK]

RELFRM

[HLT]

ILLEGAL TO DEASSIGN O FREE SPACE

RELINT

[CHK]
[CHK]

RELFRE CALLED OKINT

RELRNG

RELFRE-BAD BLOCK BEING RELEASED

RELFRE:

BLOCK OUT OF RANGE

RELRES:

ILLEGAL ADDRESS PASSED TO RELRES

RESBAD

[CHK]

RESBAZ

[CHK] RELRES: FREE BLOCK RETURNED MORE THAN ONCE
{CHK] RELRES: RELEASING SPACE BEYOND END OF RESIDENT FREE POOL

RESBND

[HLT]

RELRES:

[CHK]

REFILL ERROR PAGE FAIL

RPAIFC

[HLT]

PHYP4 - ILLEGAL FUNCTION AT CNV

RP4ILF

[HLT]

PHYP4 - ILLEGAL FUNCTION ON INTERRUPT

PHYP4 - FAILED TO FIND TWQ ENTRY AT RP4LTM

RESCHK
RFILPF

RH2ICF
RP4FEX

RP4IF2

RESIDENT FREE SPACE WAS OVERWRITTEN

[HLT]
[HLT]
[HLT)

PHYRH2 -~ INVALID CHANNEL FUNCTION
PHYP4 - ILLEGAL FUNCTION
PHYP4 - ILLEGAL FUNCTION AT STKIO

[HLT]
[HLT]

PHYP4 - DISK PHYSICAL PARAMETERS NOT FOUND

RP4SSC
RP4UNF

[CHK]
[HLT)

PHYP4 - STUCK SECTOR COUNTER
PHYP4 — UNIT TYPE NOT FOUND:

RPGERR

[HLT]

RSMFAT

[HLT]
[INF

BADCPG~-FATAL ERROR IN RESIDENT PAGE
RESSMM~FAILED TO ASSIGN SWAP MON PAGE

SBSERF

RPALTF
RP4PNF

SBSERR-COULD NOT GET ERROR BLOCK

SCDUUO

[HLT]

UuO IN SCHEDULER

SCPTO1
SCPT02

[HLT]
[HLT]

SCNPT — ENTRY IS NOT AN IMMEDIATE POINTER
SCNPT - PAGE WAS NOT DELETED

SEBISS

[CHK]

SEBCPY-INSUFFICIENT STRING STORAGE IN BLOCK

SEBUDT

[CHK]

SECEX1
SERFOF
SERFRK

[HLT]

SEBCPY-UNKNOWN DATA TYPE

SETMPG-ATTEMPT TO MAP NON-EX SECTION

[CHK] CANNOT OPENF ERROR REPORT FILE
[HLT]

SERINI-CANNOT CREATE SYSERR FORK

SERGOF

[CHK]

SETOFI-CANNOT GTJFN/OPEN SYSERR FILE

SHRNOO

[HLT]

DESPT-SHARE COUNT NON-ZERO

SHROFD

DWNSHR—-OFN SHARE COUNT UNDERFLOW

SHROFN

[HLT)
[HLT]

SKICL1

[HLT]

CALL TO SCHEDULER WHEN ALREADY IN SCHEDULER

SKDMPE

SKDPF1

[HLT]
[HLT]

MPE IN SCHEDULER OR PI CONTEXT
PAGE FAIL IN SCHED CONTEXT

SKDTRP

[HLT]

INSTRUCTION TRAP WHILE IN SCHEDULER

UPSHR-OFN SHARE COUNT OVERFLOW

TOPS-20
-18~

Table 3

Name

Type

SNPIC
SNPLKF

[CHK]
[CHK]
[CHK]
[CHK]

SNPODB
SNPUNL

BUGHLT and BUGCHK Names and Descriptions (Cont)

Description
SNPFN3:

INSTRUCTION BEING REPLACED HAS CHANGED

SNPFNO:

CANNOT LOCK DOWN PAGE

SNPF4C:

COUNT OF INSERTED BREAK POINTS OVERLY DECREMENTED

SNPF5A:

CANNOT UNLOCK SNOOP PAGE

INTO MONITOR

[HLT]

SPT COMPLETELY FULL

SPTFL2

[HLT]

SPT COMPLETELY FULL

SPTPIC

[HLT] SWPIN - SPT PAGE ALREADY IN CORE
[HLT] UPSHR-SPT SHARE COUNT OVERFLOW

SPTFL1

SPTSHR
SPWRFL

SROBAD

STKOVF
STRBAD
STRTER
STZERO

SUMNR1
SUMNR2
SWPASF
SWPFPE
SWPIBE
SWPJSB

SWPMNE

[CHK]
[CHK]

SPURIOUS POWNER FAIL INDICATION
SCDRQ-BAD CALL TO SCDRQ7

[HLT] MONITOR STACK OVERFLOW
[HLT] ASOFN-ILLEGAL STRUCTURE NUMBER
[HLT] FATAL ERROR WHILE PROCESSING PREVIOUS STARTUP ERROR
[HLT] FILINI: STRTAB ENTRY FOR PS IS 0

[CHK] AJBALX~SUMBNR INCORRECT
[CHK] WSMGR—-SUMNR INCORRECT
[CHK] CHKBAT-FAILED TO ASSIGN BAD SWAPPING ADDRESS
[CHK] SWAP ERROR IN SENSITIVE FILE PAGE
[CHK] SWAP ERROR IN INDEX BLOCK
[CHK] SWAP ERROR IN JSB PAGE

[HLT]

SWAP ERROR IN SWAPPABLE MONITOR

SWPPSB

[CHK] SWAP ERROR IN PSB PAGE

SWPPT

[CHK]

SWPPTP

SWAP ERROR IN UNKNOWN PT
SWAP ERROR IN UNKNOWN PT PAGE

SWPSTL

SWAP SPACE TOO LOW AT STARTUP

SWPUPT

SWAP ERROR IN UPT,

SWPXXX

UNRECOVERABLE SWAP ERROR FOR CRITICAL PAGE

SYMNOM

Unable to map symbol table page
Unable to unmap symbol table page

SYMNOU
SYSERF

OR PSB

LOGSST-NO SYSERR STORAGE FOR RESTART ENTRY
PHYM2 - TMO2 SSC OR SLA WONT CLEAR

TM2CCI
TM2HER

TM2ERR - IS.HER SET ON SUCCESSFUL RETRY

TM2IDM

PHYM2 - ILLEGAL DATA MODE AT DONE INT

TM2IDX

PHYM2 - ILLEGAL RETRY BYTE POINTER

TM2IF2

PHYM2 - ILLEGAL FUNCTION ON COMMAND DONE
PHYMZ ~ ILLEGAL FUNCTION DURING RETRY
PHYM2 - MORE DRIVES THAN TABLE SPACE, EXCESS IGNORED
PHYM2 — CHANNEL DONE INTERRUPT BUT NO UNIT ACTIVE

TM2IRF
TM2N2S
TM2NUD
TM2RFU

PHYM2 - ERROR RECOVERY CONFUSED

TM2UNA

PHYM2 - DONE INTERRUPT AND UDB NOT ACTIVE
PHYM78 - ASYNCHRONOUS ERROR INTERRUPT

TMBAEI
TM8BN2S

PHYM78 - MORE DRIVES THAN TABLE SPACE, EXCESS IGNORED
PHYM78 - CHANNEL DONE INTERRUPT BUT NO UNIT ACTIVE
CAN'T SENSE TU78 STATUS

TMBNUD
TMBSNS
TRPSIE

NO MONITOR FOR TRAPPED FORK

TTBAD1
TTDAS1

BAD DEVICE DESIGNATOR FOR TERMINAL AT ATACH2
HLTJB: UNABLE TO DEASSIGN CONTROLLING TERMINAL

TTFSMS

Failed to send system message

TTICNO

TCI - NO BUFFER POINTER BUT COUNT NON-0Q
TTSND-UNRECOGNIZED ESCAPE CODE

TTILEC

TTLOKB

BAD TTY LOCK IN TTLCK

TINACL

LINE NOT ACTIVE AT PTYOPN

TTNAC3

CTY NOT ACTIVE AT FSIPBO

TTNAC4

CTY NOT ACTIVE AT FSIPBI

TTNACS

CTY NOT ACTIVE AT FSIINI

TTNAC7

DEALLOCATING

TTNAC8

CANNOT ASSIGN TERMINAL AT DEVINI

TTONOB

TTY OUTPUT - NO BUFFER BUT COUNT NON-0

TTQADX

INACTIVE LINE

TTYSRV-UNKNOWN FUNCTION REQUESTED

TTULKB

BAD TTY UNLOCK IN ULKTT

TTYBBO

TTYSRV-BIG BUFFER OVERFLOW

TTYNTB

RAN OUT OF TTY BUFFERS

TTYSTP

TTYSRV - LINE HAS BEEN SHUT OFF BECAUSE OF EXCESSIVE INPUT RATE
PHYSIO — PWQ OR TWQ WAS NULL AT A SEEK OR TRANSFER COMPLETION

TWONUL

I/0 NMX FROM UNIBUS DEVICE

UBANXM
UIONIR

UDSKIO — NO IORB FOR NOSKED FORK

ULKBAD

UNLOCKING TTY WHEN COUNT IS ZERO
LOCK BEING UNLOCKED WHILE OKINT

ULKINT

ULKSTZ

OVERLY DECREMENTED STRUCTURE LOCK
UNBLK1 - FORK NOT FOUND

UNBFNF

UNFWSS

UNIT NOT FOUND CREATING SDB FOR STRUCTURE

UNPGF1

[HLT]

UNPGF2

[HLT]

UNKNOWN PAGE FAILURE TYPE

UNPIRX

[CHK]

UNPIR-NO PSI

UNXMPE

[HLT] PFCDPE-UNEXPECTED PARITY ERROR TRAP
[HLT] PFCDPE: PARITY ERROR IN UPT

UPTMPE

USGHOL
UXXCKP

MEMPAR-PARITY ERROR DURING MEM SCAN

IN PROGRESS

[INF] LOST PAGE(S) IN USAGE FILE
[HLT] COULDN'T CREATE CHECKPOINT FILE

TOPS-20
-19-

Table 3

BUGHLT and BUGCHK Names and Descriptions (Cont)

Description

Name

Type

UXXCL1
UXXCL2

[CHK]

UNABLE TO OPEN NEW USAGE FILE

UXXCL3

[CHK]

UNABLE TO CLOSE USAGE FILE

UXXCRE
UXXFAI

[CHK]

[HLT]

[CHK]

UNABLE TO CREATE NEW USAGE

FILE

CANNOT CREATE USAGE FILE
USAGE JSYS FAILURE
CHECKPOINT FILE NOT

UXXILL

[INF]
[HLT]

USGMES:

ILLEGAL FUNCTION CODE

UXXMAP

[HLT]

USGMAP:

CALL TO JFNOFN FAILED

UXXFIT

IN CORRECT FORMAT FOR THIS SYSTEM,

UXXOPN

(HLT]

UNABLE TO OPEN USAGE FILE

UXXWER

[CHK]

WRITE ERROR IN USAGE FILE

[CHK]
[CHK]

WRTBTB — FAILED TO BACKUP ROOT-DIRECTORY

WAITNI

WRTBT4
WRTCPB

WRTLNG

[HLT] WALIT JSYS while not interruptable
ASOFN ON BIT TABLE FILE FAILED

[HLT]

WRTBTB - BIT TABLE IS A LONG FILE

[CHK]

SOSWSP-WSP NEGATIVE

WSSPNC

[HLT] WSSFKP-FORK SPECIAL PAGE BAD AGE
[HLT] WSSFKP-FORK SPECIAL PAGE NOT IN CORE

XBWERR

[CHK]

UPDOFN-DSK WRITE ERROR ON XB

WSPNEG

WSSPNA

XSCORE

[HLT] CST TOO SMALL FOR PHYSICAL CORE PRESENT

REBUILDING...

RPO7

KL10

Maintenance

Volume

Guide

RPO7

This

is an entirely new section. Insert
new RP0O7 tab found at the end of this
package. Then insert the following sheets
the

(pages

Discard

this

through

sheet

after

41)

after

completing

this

directions.

tab.

RPO7

Table

Contents

RPO7
MASSBUS

REGISTERS . e eeeeseesrsssesacocccceocsecsoscosasssscccecsesssl

00,

Control

and

01,

Device

Status

(RPCS1l)eeevecccenoeel

Function Coges.................................................4

DRY-PIP-ATA " StatusS

DUring

(RPDS)..eeeecccccececcessd

OpPerationNS...eeeceesccecccscssscsccceeesb

Register 02,
— Error Register 1 (RPER1)cueeeescoccocacecncnnsesl
Valid AddreSSeSeeeeeeeessoeecoeeccesesoesossssesosseceasessesessB
Register 03,
- Maintenance Register (RPMR1)e.eeeeeceeeecenoeeesd
Register

04,

WEIting

ATA

05,

Example

Findl

- Attention Summary Pseudo-Register (RPAS).......l10
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- Desired Sector/Track Address Register (RPDA)...l1
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068

10,
11

Desired

13;

Current

14,

Error

15,

Error

12,

—

Drive

Type

Look

Ahead

Serial
Offset

Number

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Address

Cylinder

Address

(RPDC)e......13

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16,

ECC

Position

17,

—

ECC

Pattern

AND

BIT

(RPECl)ue.eeceoceeoscascasdal?

(RPEC2) wueeueeeeeeenennnn. 17

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REGISTERS

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RP20

FSC

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Address

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RP20

Nonlinked

Linked

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Series

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Program

Control

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Data

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Common

Sense

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Byte

Bit

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RPO7

MASSBUS

This

REGISTERS

section

information

describes

the

status

Massbus

and

registers

error

bits

and

gives

detailed

each.

Massbus Registers
Massbus Register
Number (Octal)

Mode of
Operation

(RPCS1)

01
02
03
04

(RPDS)
(RPER1)
(RPMR1)
(RPAS)

Control and Status
Register
Read/Write
Drive Status Register
Read Only
Error Register 1
Read Only*
Maintenance Register 1 | Read/Write
Attention Summary
Pseudo~-Register
Desired Track/Sector

(RPDA)

06
07

(RPDT)
(RPLA)

Drive Type
Look Ahead

(RPSN)

Serial

11
12

(RPOF)
(RPDC)

Offset Register
Desired Cylinder
Address Register

(RPCC)

Current

(RPER2)

Address Register
Error Register 2

Read
Read

15
16

(RPER3)
(RPEC2)

Error Register 3
ECC Position Register

Read
Read

Only*
Only

(RPEC2)

ECC

Read

Only

Address

*Drive

resident

Number

Read
Read

Only
Only

Only

Read/Write
Read/Write

Cylinder

Pattern

microdiagnostic

Read/Write

routines

test

set

Only
Only*

and

reset

capabilities.

00,

Control

Read/Write

and

Status Register

wused

(RPCS1)

initiate

all

RPO7

command

operations.
It is physically shared by RP07 Device Control Logic
(DCL)
and
the
RH20
Controller.
RP07
uses
seven
of
the
control
register's 16 bits
(0-5 and
11);
RH20 contains
the
remaining 9

bits.

Bit 0
(GO)
- A command
(bits 1-5 in RPCS1l)
is always transmitted
with the GO bit set. When set, GO causes the RP07 DCL to do the
following.

Decipher

the

Determine

the
3.

appropriate

Determine
a.

function
the

the

error

the

O0CC

(Massbus

Run)

line

decoded

the

1-5

RPCS1).

illegal

and,

data

transfer

data

(Massbus

and

command

microseconds

command,

(bits
code

so,

set

bit.

command

decoded

assert

code

function

Occupied)

execute

the

becomes

command

command.

transfer

1line

function

command,

within

the

590

RUN

asserted.
is

not

data

RP07

executes

the

function

microdiagnostic

routine,

for

example).

transfer

called

for

RPO7
-4

Bits
1-5
(Function
Code)
Function
Code
particular commands to be executed by the RP07.
listed in the table below.

bits
contain
the
Function codes are

Function Codes
Command
Octal

Code

Command

Function
F4
F3

No-0p

Code
F2

and
Fl

GO
FO

Illegal

Seek

Recalibrate

11
13

Drive Clear
Release

0
0

1
1

0
0

0
1

1
1

Offset

17
21

Return to Centerline
Read in Preset

0
0

0
1

1
0

1
1

No-0p

25
27

Illegal
Illegal

0
0

1
1

0
0

1
1

0
1

1
1

33
35

Illegal
Microdiagnostic

0
0

1
1

0
1

1
0

1
1

Illegal

47
51

Illegal
Write Check

Data

1
1

0
0

0
1

1
0

1
1

Write

Header

and

Check

55
57

Illegal
Illegal

1
1

0
0

1
1

0
1

1
1

61
63
65
67

Write Data
1
Format Track
1
Write Track Descriptor|l
Illegal
1

1
1
1
1

0
0
0
0

0
0
1
1

0
1
0
1

1
1
1
1

Read

Data

73
75

Read
Read

Header & Data
Track Descriptor

1
{1

1
1

0
1

1
0

1
1

Illegal

Bits

Bit

6-10

Data

These

(DVA)

bits

Device

read by Massbus.

hardwired
access

all

sees

zeros

always

Bits

DVA

the

read

bits

Device

input to
dual

the RH20.

bit

the

(DVA)

the buffer

access

controller

parity

- These

01,

the

when

12-15

The

set;

plus

set

ground.

reside

Availability

set.

mode

that

always

for DVA

the

does

single

set

when

not

RPCS1

(J42 Pin 8)

controller
have

access

that

access

mode,

has

sees

DVA

controller.

reside

Status

the

RH20

controller.

(RPDS)

This read—o%ly register contains non-error indicators.
Bit
0
(OM)
Offset
Mode
(OM)
(Function Code and GO, bits 5-0 in

OM Reset
®

OM Reset

sets
when
an
Offset
RPSCl) is written.

condition generating ATTENTION
Return

Centerline

conditions
Any

write

— NO

Command

INTERRUPT:

command

ATTENTION

INTERRUPT generated:

command

Seek

Implied

Seek

Mid-transfer

Seek

Recalibrate
Read

Power

Preset
Reset

Release

Bit 1 (EWN) - Early Warning (EWN) is set when RPO7 thermal or
flow sensors detect an out-of-limit condition in the drive,
remains set as long as the condition persists.

air
and

RPO7
-5-

EWN

but

will,

operator

status

bit

when

set,

control

early

only

warning

sequence,

and

will

cause

panel)

the

condition

spindle-start

sequence

Bit

Interleaved

not

cause

UNSAFE

1is

attention

indicator

blink.

detected

before

inhibited.

interrupt

(located

the

spindle~start

Detection

after

does

not generate a spindle-stop sequence;
however, the UNSAFE indicator blinks to
inform the operator of an
unsafe
condition.
Continued
rise
in
temperature
causes
CB3
to
trip, removing ac power to the drive.

(ILV)

enables

sector

hardware

jumper

Service

Bits

Manual

3-5
6

(VV)

Bit

(DRY)

in
8

the

- When

commands.

(DPR)

(VV)

Drive

DRY

if GO

RH20

other

the

set

access
that

read

RH20

(PGM)

set

when

the

a dual
drive is

start-spindle

single

RPDT)

1is

ignored,

sequence

on-line

mode,

reset,

PGM

access

Drive
to

(DPR)

RP0O7

mode,

after

the

(bit

negated.

Present

the

access

and

the

set

reset

DPR

bit

bit
and

operator control
panel
is
in
of drive transition from off-line to
after
successful
completion
of
a

DRQ

Online

(Drive

negated

state)

ready

the Programmable (PGM)
available to both controllers

the

when
is

"A"

(opposite

DRY

drive,

position.

access
and

host

drive

controller.

access

A, A/B,
B switch
the A/B position at the time
on-line.
Transition
occurs

the

read,

access

single

equally

Access

set,

drive,

has

when

RPDS

Bit

complement

controller.
by

presented

(DRY)

when

dual

controller

set

off-line

Ready

RH20

always

the

for

Valid Volume

RPCS1):

Bit

the

- Always

Bit

Sectors
(ILV)
is set by the logic that
ILV
is
field-programmable
by
a
backpanel
(J26). See Chapter 2 of the RPO7
jumper configuration,

interleaving.

Request

(reset),

forced

switch

placed

Required,

the

from

bit

Access

switch

true.

Bit 10 (LBT) - Last Block Transferred (LBT) is set by the
RPO7 DCL
during a Data Transfer Command when data
is being transferred to
the last addressable sector of user media.
LBT

resets

under

new

any

the

command

following

conditions.

issued

Massbus Initialize
Drive Clear
Power

Bit

(WRL)

condition

Reset

Write

the

Lock

drive

switch

write

command

the

write

operation.

(MOL)

Bit
to

when

the

which

Online

after

Online

reset

whenever

commands

the

cannot

Power-down

Unsafe

condition

Change

from

control

set

(MOL)

the

true
WRL

deferred

set

when

until

the

reset

protect

the
not

Write
set

completion

drive

ready

spindle-start

Sequence

and

position.

must

set

on-line

command

MOL

except

when

one

the

enters

executed.

the

RP07

following

1in

states

sequence

on-line

panel;

off-line

start

Bit 13
(PIP)
- Position
in Progress
drive positioner is in motion.
is

will

position

deferred

completion

PIP

write

assertion

panel.

successful

drive

result

any

reflects

control

progress;

switch
prior
to
initiation
of
microdiagnostic mode.
MOL

operator

Medium

commands

(WRL)

logic

Protect

completion

the

(PIP)

movement.

1is

set

the

operator

until

command

whenever

the

RPO7
-6-

table shows a

following

The

the

type of

operation being

list of

relationships between PIP and

performed.

DRY-PIP-ATA Status During Operations

ATTENTION (ATA)
DRIVE READY | POSITION IN
PROGRESS (PIP) | AT END OF OPER
(DRY)

Operation

0
0

No
Yes

Offset
Drive Clear
Return to Centerline

0
0
0

0
1

cylinder)
Write Check
Write Data
Write Header and Data
Read Data
Read Header and Data
Implied Seek
Mid-Transfer Seek
Read in Preset
Search
Microdiagnostic

0
0
0
0
0
0
0
0
0
0
0

1
0**
O**
Q**
O**
Q**
1
1

Yes
No
No
No
No
No
No
No
No
Yes
Yes

No operation
Recalibrate

(including

Seek

O**
0

execution

command

*PIP sets

Yes
No
Yes

0*
0
0*

the

exceeds

time

Massbus

current

time.

cycle

**pIP is set during the implied seek portion of the command.

Bit 14

is the OR

(ERR)

- Composite Error Status

(ERR)

(Inclusive
the

ERR is reset by one of
of all register error bits.
OR)
following conditions - provided the error is not persistent.
Drive Clear
Massbus Initialize
Power On Reset

®
o
®

set

error

composite

initiation

command

other

than

Drive Clear or a Microdiagnostic command will inhibit execution of
the command and prevent the GO bit from being set.

Bit

(ATA)

- Attention Active

(ATA)

the

indicates the state of

Attention flip-flop for the switched/seized RH20 controller.
ATA is set under any of the following conditions.
in the error

registers

Any error

)

On a Write to any register when Composite error is set
or
(RPAS)
register
Summary
Attention
the
except
maintenance registers, writing Microdiagnostic command,
or Drive Clear function codes with the GO bit in the

At occurrence if GO bit is reset
At completion of a command if GO bit

Control

is set

Return

Completion of a Seek, Search, Recalibrate, Offset,
to Centerline, or Microdiagnostic command

Whenever MOL changes

In a dual access RP07 when access request flip-flop (DRQ,

bit

in RPDT)

controller

state

set

for

one

controller

and

the

and

other

releases.

ATA is reset under any of the following conditions.

Writing

Drive

the GO bit when ERR is reset

Clear

(if

error

not

persistant

not

set)

)

Massbus Initialize

Writing a 1 into the Attention Summary Pseudo-Register
(RPAS) bit position that corresponds to the RP07 logical
drive

address.

RPO7
-7
-

RP0O7

error

conditions

fit

into

one

CLASS

A errors,

which

can

non-data

transfer

two

handled

command,

error

basic

condition

categories:

the

convenient

completion

block

boundary
°

CLASS

errors,

class

error

execution
All

nonpersistant

(cleared)

under

Drive

any

which

causes

soon

must

error

bits

following

the

handled

drive

immediately;

terminate

command

possible.
1in

Error

are

reset

conditions.

Clear

Massbus

[

Power

Initialize

Reset

Bit 0 (ILF)
- Illegal Function (ILF)
is set when a function code
and
GO
bit
are
written
into
the
RPCS1
and
the
code
does
not
correspond to an implemented command in the RPO7.
ILF

CLASS

error.

Bit 1 (ILR) - Illegal Register
(ILR)
is set when a read or write
command is attempted to or from a nonexistent register. Trying to
write into a read-only register does not set ILR.
ILR

Bit

(RMR)

CLASS

error.

Modification

Refused

(RMR)

set

when

write command is attempted to an existing drive register
(except
the RPAS) while the GO bit is set and an operation is in progress.
RMR

Bit

(PAR)

CLASS

(PAR)

error

bit

set:

)

When a parity error
when writing into a

applies

from

the

header

FER

parity

By DPE (Data Parity Error, bit 3 in RPER3) when a parity
error
is
detected
on a Massbus data
line
when
writing
data on the media (CLASS A error), or

PAR

error.

presence

Bit

- The

data

RH20

control

controller

odd

is detected on a Massbus control
register (CLASS B error).

information
the

RP07;

being

the

RP07

line

transmitted
checks

only

for

the

parity.

(FER)
- Format Error
(FER)
is set after reading an entire
if bit 12 of the first header word does not match FMT (bit
RPOF).

Data

is a CLASS
Command.

FER

Bit

(WCF)

CLASS

A error

during

error

for

Write

Clock

operation if the RP07 fails
data (write clock) from the
a

and/or

Write

Check

Header

(WCF)

set

during

to receive a response to a
RH20 within one word time.

write

request

6 (ECH) - ECC Hard (ECH) error is set when a Data Check
15 in this register) cannot be recovered by using ECC.

ECH

and

others.

Fail

Bit
bit

CLASS

Read

WCF

CLASS

all

for

error.

(DCK,

RPO7
-8-

Bit

(HCE)

header

Bits

one

Header

Compare

Error

following

the

(HCE)

set

while

reading

the

occurs.

The cylinder address bits, 0-9 in the first header word,
do not match the contents of the Desired Cylinder Address
register (RPDC) bits 0-9.

The sector address bits, 0-6 in the second
do
not match
the contents of
the Desired
Address register, bits 0-6.

header word,
Sector/Track

The track address bits, 8-13 in the second
do
not match
the
contents of
the Desired
Address register, bits 8-13.

header word,
Sector/Track

Bits 13, 11,
14, and 7 in
15,

header

14,

and

compare

and 10 in the first header word or
the second header word are not 0.
of

the

first

header

word

are

bits

ignored

15,

the

logic.

HCE is a
progress

CLASS A error that causes termination of the command in
after
reading the entire header,
unless the command
in
progress is a Read or Write Check Header and Data Command, or HCI
(Header
Compare Inhibit,
bit 10
in RPOF)
is asserted,
in which
case HCE is a CLASS A error.

Bit 8 (HCRC) - Header CRC (HCRC)
is set when the CRC
nonzero after reading the entire header and redundancy
In

the

above

termination
header,

HCRC

command

CLASS

progress

error,

after

which

causes

reading

the

entire

Write

Check

Header

RPOF)

unless:

The
and

case

HCI

the

above

command in
or

progress

Read

Data,

(Header
two

Compare

cases,

Inhibit,

HCRC

bit

CLASS

asserted.

A error.

Bit 9
(AOE)
- Address Overflow Error
(AOE)
is set when the RH20
attempts to continue data transfer beyond the last user-available
sector causing a cylinder address overflow. When AOE is set, the
sector and track count in the RPDA and the cylinder value in the
RPDC are incremented at EBL assertion.
AOE

CLASS

error,

Bit 10
(IAE)
- When the contents
of
the RPDC
invalid, Invalid Address Error (IAE) is set as a
the following commands.

or
the
RPDA are
result of any of

Seek
Search
Read

Header

Read

Data

Write
Write
Format

Write

Write
Read
See

the

and

Check
Check

Data

Header
Data

and

Data

Track

Data

Track
Track

following

Descriptor
Descriptor

table

for

valid

addresses.

Valid Addresses
Functional Mode
16-Bit
18-Bit

Address

Diagnostic Mode
16-Bit
18-Bit

Desired
Desired

cylinder | 0-629
head
0-31

0-629
0-31

0-631
0-31

Desired

sector

0-42

0-49

0-42

IAE

CLASS

0-49

error.

RPO7
_9._

Bit

(WLE)

- When

is
in write lock
write command, if
panel

becomes

write

operation

WLE

Bit

CLASS

B
-

timing

CLASS

timing

error

detected

that

causes

during

correct

bit

error

progress.

attempted

on a drive that
(WLE)
is set.
During a
on the operator control
condition
results;
the current

failure
B

Bit 13 (OPI) - Operation
following conditions.
1.

error

Error
switch

error.
Drive

error

operation

completes.

transfer

command

write

asserted,

(DTE)
is

mode, Write
Lock
the Write Protect

Incomplete

implied

seek

within

three

sector

while

set

the

during

data

drive

logic.

The

DTE

the

find

the

immediate

(OPI)

the

termination

set

RP07

under

does

revolutions

executing

command.

Failure

commands

detect
that

INDEX

are

pulse

for

three

oriented

the

for

sector

following:
Format

Read

the

start

data

transfer

revolutions
index

marker,

track

Track

Write

not

from

any

Descriptor

Track

Descriptor

Search
Read

Check

Write
OPI

Bit

CLASS

(UNS)
that

.
@

above

Bit

Data

the

inclusive

for

normal

for

Unsafe
the

Unsafe

(UNS)

RP07

unsafe

(RWU1l,

bit

(RWU2,

bit

RPER2)

(RWU3,

bit

RPER2)

Unsafe

(DCU,

bit

Calibration

CPU

Unsafe

All

other

Data

error

are

Check

(DCK)

(Error

Correction

11-31

are

DCK

ECC

RPER2)

errors.

set

Code)

completion

field

(ECI,

bit

DCK

CLASS

03_,

the

ECC

Inhibit

ECI

error

completion
-

Maintenance

processor

the

through

gains

the

reset.

error

software

microdiagnostics

reading

sector

the

RPOF)

nonzero.

set,

terminated

following

conditions

bits

error

CLASS

the

RPER3)

CLASS

Failure

permanent

conditions

operation.

Unsafe

error

sector

error.

ECC

Data

and

Unsafe

(DCK)

and

Header

R/W

Tach

All

data

Check

R/W
DC

make

R/W

.
o

~NOY
UL
W
-

errors

Header

The

command

correction

process.

(RPMR1)

access

the

drive-resident

Massbus

Maintenance
Register.
register
allows
the
host
to
initiate
microdiagnostic routines and monitor microdiagnostic results.

read/write

Bits

0-7

specific

The

Bits

8-14

RPO7

run

Bit

(DMD)

host to
will:
*

host

Routine
a

enters

parameters

microdiagnostic

number

specific

enable

The

Disable

used

during

written

the

host,

bits,

Diagnostic

write

execution

Mode

operations

(DMD)

Enable

execution

)

Enable

execution

commands

Enable

access

cylinders

specific

direct

the

routine.

bit

microdiagnostic

cylinders

This

RPO7

routine.

microdiagnostic

operation

then

all

mode.

written
When

cylinders

microdiagnostic

with

MOL

reset

set,

by
bit

except

routine

the
15

RPO7

— Attention Summary Pseudo-Register (RPAS)
Register 04,
This read/write register is called a pseudo-register because it is

implemented as one bit in each drive. Each RP07 has one flip-flop
that, depending on the logical location of the drive, corresponds
to the appropriate line on the asynchronous Massbus control lines.,
The RPAS allows the host to see where the drive requesting
attention is located. To see the cause of ATA, the RH20 controller
will

read

then

the RPDS.

To read RPAS does not require that Massbus DS (Device Select)
address lines be used; all drives respond each time the Massbus
addresses RPAS. RPAS is the only register that may be read in this
manner.

To write RPAS requires that Massbus DS address lines be used.

Bits 0-7 - Bit 0 is the Attention Active (ATA) bit of drive 0; bit
is the ATA bit of drive 1, and so on through drive 7.

- Bits 8-15 are

Bits 8-15

0Os.

specifically
' the RH20 controller
address a drive in order to read the RPAS,
will generally request Attention Summary status from all drives
simultaneously by indicating a "Read from Register 04," on the
Massbus register select lines and raising the Demand pulse.
READING the RPAS - Because the host does not have to

When "register 048" is selected, each drive recognizes the 04
address and places the output of its ATA flip-flop in its assigned
position on one of the control lines. For example, drive 0 places
ATAO0 on Massbus line 0. The parity line is ignored since, on a
read, parity cannot be generated in the drive.

After placing the Register 04 address on the Register Select line,
asserting Demand, and receiving an ATA from each drive, the RH20
strobes the ATA bits

RPO7 will

in order to read the results.

inhibit displaying the RPAS when it senses the negation

of Demand.

WRITING

the

RPAS -

The

attention

summary

flip-flop

status

each drive can be altered by the RH20. Each drive receives a bit
from the Massbus control lines; if the bit is set, the drive
resets its ATA bit. To clear the attention bit the unit must be
selected in RPCS2 and a 1 must be written inte the appropriate
bit. See the following table for the effect of writing an ATA bit.
Writing ATA Bits

Bit Written

ATA Before

0
1

1
0

ATA After
0

1
0

Writing a 1 causes a set bit to be reset.
Writing a 0 has no effect.

This write operation allows for reset of ATA bits that have
already been seen and acted upon without accidentally resetting
other ATA bits that may have become set in the meantime.

On a write, the controller presents the Register 04 address
(176716,) on the Massbus Register Select and DS lines and raises

the Demgnd pulse.

Following the rise of Demand, the Massbus control bus lines with
Attention Summary information are strobed by the RP07 selected by
DS 2~0.

The information is valid until negation of Demand.

For a write operation, parity will be generated by the RH20 but
will only be checked on the controller that is switched/seized to
RPO7.

The RP07 must respond with the Transfer pulse.

RPO7
-11-

When

the

Error,

and
In

RP0O7

bit

reset
the

the

RPDS)

event

write

other

flip-flop

set,

The

set

drive

any

than

will

058

command,

multiple

block

The

RPDA

Read

Bit

Power

Writing

Bits

(SA)

via

remain

(End

EBL

software

set.

transfer

from

the

- These

See

RPDA

Transfer
EBL

increments

06,

data
on

the

read

Desired

cycle.

Sector

Address

(SA)

bits

compose

the

Track

Address

(TA)

Desired

0.
the

the

Transfer

EBL

After

(RPDA)

during

updating

Massbus

compose

final

following

Example

During

RH20

Massbus
during

Current

After

the

capability;

Block)

sector

table

and/or

for

final

examples

mode}
.

During

the
RPAS or
attempts
a
microdiagnostic,
the ATA

Address
spiral

bits

after

transferred.

provides

the

change

- Always

resets

Reset

- These

(TA)

14-15

command

by:

not

- Always

RPDA

(Composite
any

Preset

will

Bits 8-13
field.

ERR

transfers.

Bits 0-6
field.

will

except

Sector/Track

relieving

cleared

data

error

Clear

again.

Desired

read/write
register
increments
automatically

RPDA

without

logic

Drive

This

transfer

Line

drive

of a hard
(persistent)
error,
ATA must be reset by
in the appropriate bit position so that all drives on
are
not
rendered
inoperable
by the attention
line's

assertion.

attempts

command

Attention

ATA,

writing a 1
the Massbus
constant

sets

Final

Track

16-bit

Sector

Address

Transfers

Address

Current

OO8

008

018

008

618

Ol8

008

track

(assume

EBL pulse.

- Drive

Type

(RPDT)

This

read-only
register
is
used
to
provide
the
software
with
information distinguishing the RP07 from other Massbus devices.

Reading
type

the

RPDT

number

and

the

unseized
Bit

Bits
Bit
Bits

Always

0,
5

6-10

the drive to
parity
bit
(odd

send the drive
parity)
to
the

- Always

via

backpanel

(DRQ)

Drive

jumper

Request Required
(DRQ)
(J26 pins
1 and
2).

confiquration

released

after

Bit

Always

Bit

- Always

Always

(which

use) .

configurations.

14-15

- Always

Bit

Bits

cause

Always

access

will

appropriate

RH20 controller.

DRQ

must
is

is field-programmable
DRQ
is
set
for
dual

requested

reset

for

before
single

use

and

access

RPO7
-12-

078 - Look Ahead Register

(RPLA)

This read-only register contains the exact rotational position of
the heads in relation to the data track. Rotational position is
monitored by a sector counter in the RP07. The counter is set to 0
at each index pulse, then is incremented each time a sector mark
is encountered. The RPLA remains stable during a Massbus read
cycle; however, the value may be incorrect if sampled at the time
counter

the

RPLA

interleave

value.

changes

presents

sequential

binary

count

regardless

the

state.

49 in a
Maximum count is specified by FMT (bit 12 in RPOF):
Changing FMT has an
format.
42 in an 18-bit
format;
16-bit
immediate

Bits

effect

Bits 6-11

and

are

(SC)

the

the SC

field

of RPLA.

- These

only

ones

bits compose

used

the

Sector Counter

RPLA,

(SC)

field

- Always

12-15

Bits

Always

0-5

(RPSN)
This read-ohly register displays the last four digits of the RP07
serial number in BCD. The drive serial number is factory hardwired
108 - Serial Number Register

the

backpanel

at J26,.

Bits 0-3

- Least

Bits 4-7

- Tens BCD digit of

Bits 8-11

- Hundreds

Bits 12-15
Register

This

- Most

11_,

serial

BCD digit of

- These

bits

are

serial

number.

serial

significant BCD bit of

- Offset Register

read/wrfite

Bits 0-9

significant BCD digit

number.
serial

number.

(RPOF)

used

for control

presented

information.

the RP07 as

Bit 10 (HCI) - Header Compare Inhibit (HCI) is set by software to
inhibit all header errors. When header errors occur with HCI set
during Read or Write Check Data commands, they are classified as A
errors.

HCI

reset by any of

°
°

Read in
Writing

Power

the

following.

Preset

bit

(HCI)

Reset

Bit 11 (ECI) - Error Correction Inhibit
(ECI) is
to inhibit attempts by the RP07 to recover from a
Error,

bit

continue

ECI

Bit

beyond

reset

the

Read

Writing

Power

(FMT)

and

sector

any of

RPER1l)

allow

where

the

Data

set by software
DCK (Data Check

Transfer

command

DCK occurred.

following.

Preset

bit

(ECI)

(FMT)

bit,

Reset

- The

Format

when

set

software,

enables

the RP07 to operate in 16-bit mode. When reset, FMT enables 18-bit
operation. Format is determined by FMT and maintained in RPLA,
FMT

reset

any

Read in
Writing

Power

Bit

(MTD)

Track

the

°
Y

Always

initiated.

the

bit

following.

(FMT)

Reset

Move

Descriptor

index

Preset
a 0 in

Track

Record

pulse

when

Descriptor

(MTD),

when

set,

written an additional

Write

Track

Descriptor

causes

bytes

the

after

command

1is

RPO7
_13-

MTD

reset

Writing

Read

the

in
of

bit

Writing

(MTD)

set

command

allows

any

Read

bit
any

Descriptor,

reset

following.

Reset

When

)

the

Write

the

(GO

resets)

failsafe

following

Track

software,

header

Descriptor,

the

handling
and

Power

Completion

bit

Reset

any

command

(GO

resets)

12,

cylinder

content

The

RPO7
a

that

Transfer

The

means

that

Spiral

the

RPDC

the

positioner

will

move

Seek,

subject

spiral

software

change

transfer

while

set.

can

capability.

continue

reading

Spiral

through

read.

transfer

transferring
that at EBL:
RUN

from

line
error

desired

tracks

RP07
1is
providing

is active, and
condition exists.

cylinder

address

transfer

1is
realized
when
the
final sector and final track

the

Search,

data

capability

data

address

command.

provides

normal

that

Track.

following.

- Desired Cylinder Address Register (RPDC)
read/write register is loaded by software with the

Data

Command

commands:

Format

Preset

)

This

The

(CMD)

Track

Power

Completion

(CMD)

Preset

Modifier

)

the

any

Read

Bit

CMD

address

will

automatically

then

increment,

initiated,

and

provided

the

seek

address

to
is

valid.
RPDC

reset

any

Read

Preset

Writing

Power

Bits

0-9

address

Bits

(DC)

field;

10-15

the

Reset

Desired

LSB

following.

this

- Always

13,

bit

position

Cylinder

(DC)

bits

compose

the

desired

Current Cylinder

Address

(RPCC)

This read—ogly register reflects the address of the cylinder below
the

read/write

The

RPCC

The

content

RPCC

updated

completion

subject

change

reset

recalibrate
initial

0-9
(CC)
address field;
10~-15

RPCC

positioning
while

operation.

set.

positioner

loaded.

by:

Bits

heads.

operation,

head

- Current
LSB is 0.

- Always

load

when

the

Cylinder

(CC)

bits

comprise

the

current

148 -~ Error Register 2 (RPER2)
read-onhly register contains error

RP07

and

Errors
°

its

are

internal

classified

CLASS

into

errors

non-data

boundary
)

control

CLASS

can

transfer

terminates

data

errors

command

indicators

associated

with

logic.

and

CLASS

handled

command

the

completion

convenient

block

command.
are

handled

execution

immediately.

soon

The

possible.

drive

RPO7
-14-

the

RPER2

reset by

following.

Reset

Power

(persistent),

is not hard

Provided that an error

any of

Drive Clear

Massbus Initialize

Bits 0~7 - These eight bits contain error status for errors that
When
microprocessor.
8080
drive's
the
by
processed
are
drive-resident

microdiagnostics

are

initiated

the

host

processor and an error results, an error code - the result of that

particular microdiagnostic - will

1.
2,

be:

Reflected in bits 0-7 of Error Register 2
Illuminated in the eight LEDs on AlA07 PCA

Displayed

the FE panel.

Bit 8 (WRU) - The Write Ready Unsafe (WRU) bit sets during a write
operation if write current is active and drive logic determines
that the positioner has moved beyond track centerline limits.
turn off write current

WRU set causes the RP07 to
abort

the

WRU is

write

error.

a CLASS

immediately and

command.

Bit 9 (WOR) - The Write Over-run error bit will set if write
current is active during both the leading and trailing edges on an
index pulse. The detection of this condition will turn off write
current immediately and subsequently abort the write command.
Bit 10 (RWUl) - The Read/Write Unsafe 1 (RWUl) error bit is set if
no write transitions are detected by the drive read/write safety
circuits during a write operation (write gate ON) within five
microseconds.

Bit 11 (RWU2) - The Read/Write Unsafe 2 (RWU2) error bit is set if
more than one head has been selected during a read or write
operation.

immediately:

RWU2

1.
2.

Deselects all heads
Disables write current

Aborts

Detection

RWU2

CLASS

the operator
is

the write command.

RWU2

causes

control
B

illumination

the UNSAFE

bit is set when
current when no

(RWU3)
write

Detection

the UNSAFE

the

operator

RWU3

in progress

causes

control

CLASS

Bit 13 (CPU)
microprogram

error.

Bit 12 (RWU3) - The Read/Write Unsafe 3
drive read/write safety circuits detect
write operation

indicator

panel.

(write gate OFF).

illumination

indicator

panel.

error.,

- The CPU
fails to

Unsafe (CPU) bit is asserted when the 8080
retrigger the CPU Unsafe timer prior to

time-out.
CPU

a CLASS

Bit

(CPE)

- CROM

parity

Bit

(PGE)

Program

commands
in RPOF)

°
.

error.

The

are

attempted

set.

The

error.

Error (PGE)
without the CMD

following

commands

Write Track Descriptor
Read Track Descriptor

)
PGE

Format
a

CLASS

Track
B

error.

then

bit is set if particular
(Command Modifier, bit 15
set

PGE.

RPO7
-15-

15_,
- Error Register 3 (RPER3)
This
read-only
register
contains
error
indicators
that
classified CLASS A or CLASS B as in Error Registers 1 and 2:
°

CLASS

errors

non-data

CLASS

errors

terminates

Provided
any

can

that

the

transfer

boundary

are

the

completion

convenient

block

command.

command

error

handled

command

data

are

handled

execution

not

hard

immediately.

soon

(persistent),

The

drive

possible.

RPER3

reset

following.

Power

°
®

Drive Clear
Massbus Initialize

Reset

Bit 0
(RTO)
- RUN
from
assertion
of

Timeout
GO
the

(RTO)
is set
drive
fails

if
to

after 30 milliseconds
detect
the
RUN
line

assertion.

Bit

(SCF)

Sync

counter

has

Bit

(SBE)
with

not

associated
Bit

(DPE)

operation

Clock

sync

clock

Sync Byte Error
(SBE)
is
set
if
the
sync
a data field or defect skip is not found.

byte

gone

Data

under

either

data

buffer

DPE

sets

causes

DPE

CLASS

Bit 4
timing
under

zero

(bit

the

Failure
(SDF)
drive data

parity

(odd

is set
buffer.

the

shift

data

strobe

Bit 5
(DCU)
voltage.

write

used)

parity

used)

error.

during

set.

attempt

(odd

detected

ready
attempt

into

buffer

the

buffer

output

when

as a
result of
SDF is asserted

when

output

not

data

low

ready

Unsafe

(DCU)

DCU

extinguishes
the
DC
indicator on the operator

RPER1l)

RP07
time.

sets

detected
is

the

conditions.

(DPE)

following

not

DCU

(SDF)
- SERDES Data
failures relating to
either

error

allocated

following

error

sets

the

Error

the

parity

(SCF)

within

Parity
of

parity

PAR

Failure

CLASS

sets

when

Safe
Indicator
control panel to

RP07

detects

and
causes
illuminate.

the

UNSAFE

error.
NOTE

Overvoltage

crowbar

protection

circuit.

guaranteed

set

provided

DCU

cannot

for

condition.

Bit 6
index

(IXU)
error

Track

Descriptor

IXU

set

reflects

Failure

Unsafe
during

command.
either

two

CLASS

(IXU) error bit is asserted
a Format Track command or a

Index Window
Index Window.

error.
NOTE

An index error
until a valid
IXu

may

(persistent)
revolutions.

condition cannot be reset
index pulse is detected.

therefore

for

if an
Write

conditions:

to detect an index pulse during
Detection of an index pulse outside the

2.
IXU

- The Index
is detected

overvoltage

two

appear

hard

complete

media

RPO7
-16-

Bit 7

of all
DVC

(DVC)

— The Device Check

error

does

bits

not

in RPER2

cause

accordance with

the

(DVC)

(8-15)

attention

specific

error

bit

the

inclusive OR

and bits 0-15 in RPER3.
condition.

error

bit

that

ATA

will

causes DVC

set

to assert.

Bit 8 (PHF) - The 8080 Processor Handshake Failure (PHF) error bit
is set if the 8080 microprocessor fails to respond to a command.

Bit 9 (LCE) - Loss of Cylinder Error (LCE) is set if positioner
movement is detected outside the cylinder boundary when no
positioning operation is in progress. Detection of this condition
causes the drive to automatically issue a recalibrate operation.

The Error bits
(bits 0-7 in RPER2)
and ATA will NOT become
asserted until completion of the recalibrate operation. PIP (bit
13 in RPDS)

is asserted during

the positioning operation.

The

error

the

proper

AlA7

PCA

code

for

LCE

(Servo Control)

reflected

as well

the

bits

eight

0-7 of

LEDs

RPERZ.

If a command is loaded with the GO bit (bit 0 in RPCS1l) set during
the processing of LCE, the command is deferred until completion of
recalibration. Then the command is terminated and ATA is raised.
and EBL (End of
(Exception)
If a data command is loaded, EXC
Block)

will

Bit 10

(LBC)

the

following

raised.

- The Loss

Bit Clock

conditions.

(LBC)

error

bit

set

under

A microcoded time-out occurred in which the word counter
failed
to
attain
the
value
loaded
into
the
compare
register within the time-out interval. This is detected
by a failure of the end of branch condition to assert by
the end of the time-out interval.

The

end

compare

The

branch
that

word

counter

condition

The

branch

end

writing

Bit 11 (CLF) - Control
a result of any of the

attempt

)

interrupt

)

invalid

when

the

was

value

failed
loaded

negate

with

greater

than

after
new

the

value,

equal

has

been

tested.

signal

the BC

failed

write

the

8080

the

2901

full

failure

reset

with

the

set

by RP0O7 logic as

Logic Failure (CLF) is
following conditions.

function code

Communications

interrupt

Current Sense Failure (WSF) is set by the
device fails to sense Write Current after

Bit 12 (WSF) - Write
drive logic when the
gate

(BC)

either:

the new BC register value at the time the end branch

write

condition

indicating

enabled.

Bit 13 (DSE) - Defect Skip Error (DSE) is set by the drive logic
when an invalid value results during defect skip calculation.
Bit

(SKI)

- Seek Incomplete (SKI) is
the following conditions.

detects any of

Error

Error Code
0A

too

Seek

overshoot

Guard

the

drive

logic

Codes

long

Seek

Guard

when

Condition

0cC

set

band detected during seek
band

Reference

detect

gap

failure during

pattern;

recalibrate

detection

failure

(recalibrate)

Seek

error

Attempt

during

land

recalibrate

in guard

band during

recalibrate

RPO7
-17-

Detection

SKI

error

causes

the

RP07

automatically

initiate

a
recalibrate.
The error bits
(0-7 in Error Register
2)
and
will NOT set until completion of the recalibration operation.
That
on

Bit
a

particular

AlAQ07

(BSE)

CRC

error

PCA as

for

SKI

reflected

bits

0-7

RPER2.

Sector

Error

well

Bad

code
as

character
check
if
word is found to be

header

the

(BSE)

set

the

bit

either
zero.

the

LEDs

completion
of

If
the command
is Read or Write Check
Header
and
termination
occurs
at
normal
EBL
(End of
Block)
current

eight

ATA

the

Data,

first

time

command
for
the

Data,

command

sector.

command

termination

not

occurs

Read

Write

completion

Check

the

Header

CRC

and

check.

Register 16,
- ECC Position Register (RPEC1)
This read-only register contains the binary address minus 1 of the
first
bit
of
an
error
burst
in
the
data
and
ECC
field.
The
contents reflect the completion of a Data Transfer that results in
DCK

(Data

Check

Error,

bit

(ECC

ECH

Inhibit,

Error,

Hard

bit

RPER1l),

without

ECH

(ECC

Hard

RPER1).
Error,

bit

RPOF)

1is

bits

are

binary

RPER1l)

set,

the

ECI

(Error

contents

Correction

RPEC1l

are

irrelevant.

Bits

0-12

Bits

13-15

This

XORed

- These
-

17,

Always

ECC

weighted.

Pattern

(RPEC2)

read—-%ly register contains an 1ll-bit error burst that is
(exclusive

ORed)

with

the

data

main

memory

the
position
count)
to
correct
the
error
reflect
the
completion
of
a Data
Transfer

that
ECH

(Data

Check

bit

ECH

RPOF)

counts
RPEC2

Error,

(bit

RPERl)

1is

set,
the

reset

Clear

Power

any

RPER1l)

11-15

The

2901

and

the

The

8080

the

and

MPUs

data

from

Correction

RPEC2

Error,

are

Inhibit,

bit

irrelevant.

Valid

field.

following.

command
(RUN

Code
at

(PAT)

bits

and

the

compose

fall

the

bit
of

(bits

EBL).

1l-bit

error

interact
on

AlA08

path

the

Function
assertion

Master

Interaction

Communications

supply

bits)

Hard

INTERFACE

operation.

Communications

(Error

redundancy

continuance

Always

MICROPROCESSOR

mode

(ECC

Reset

of
RPCS1)

Command

ECC

Bits 0-10 (PAT)
- The Pattern
burst field; bit 0 is LSB.
Bits

without

Initialize

ECI

contents

Initiation
0-5

the

entire

Drive

Massbus

[

RPER1).

include
is

bit

(located

burst.
The
contents
results
in DCK

from

8080

PCA

and

Slave

depending

takes
©place
through
(Command/Index/Sector).

composed

the

2901

the

2901

via

four

8-bit

latches

the

8080

via

the

Bus

the

(16

Bus

bits).

on
the

that
(16

R/W

DVA

Fa4

L0dd

CONTROL AND STATUS (RPCS1)

DEVICE STATUS (RPDS)

ATA | ERR

PIP

MoL | WRL | LBT | PGM | DPR | DRY | VV=1

ILV | EWN

MR-11394

ERROR 1 (RPERT)

pck | uns | ori

DTE | WLE

IAE

AOE | HCRC | HCE

ECH | wcF | FER | PAR | RMR | ILR

ILF

MR-11395

_.8'[..

MR-11393

MAINTENANCE 1 (RPMR1)

R/W

DMD

DIAG 64

DIAG 16
DIAG 32

DIAG 4
DIAG 8

DIAG 1
DIAG 2
MR-11396

R/W

ATA7 | ATA6 | ATA5 | ATA4|

ATA3 | ATA2 | ATA1 ]| ATADO

_6'[_.

ATTENTION SUMMARY PSEUDO (RPAS)

MR-11397

R/W

TA32 | TA16 | TAS8

TA 4

TA 2

TA 1

SAG64 | SA32 | SA16|

SAS8

SA 4

SA 2

SA1

MR-11398

L0dYd

DESIRED TRACK/SECTOR ADDRESS (RPDA)

)

DRQ

)

DT 1

MR-11399

LOOK AHEAD (RPLA)

sces4 | sc32 | sc16

sc s

SC 4

SC 2

SC 1

MR-11400

SERIAL NUMBER (RPSN)

056

800

400

200

100

MR-11401

L0dYd

DRIVE TYPE (RPDT)

OFFSET (RPOF)
15

R/W | cvp | mTD

12
FMT 16 |

ECI

HCI

MR-11402

DESIRED CYLINDER ADDRESS (RPDC)

R/W

512

256

128

*T*)

MR-11403

512

256

128

MR-11404

L0dd

CURRENT CYLINDER ADDRESS (RPCC)

L0dY

ERROR 2 (RPER2)

R | PGE | cPE

cru | RWU3 | RWU2 | RWU 1|

WOR

‘(,"3;’

—

ERROR 3 (RPER3)

R | Bse | ski

pse | wsF | cLF | LBc | LCE | PHF | DVC | IXU | DCU | SDF | DPE

SBE | SCF | RTO

MR-11406

_ZZ—

MR-11405

ECC POSITION (RPEC1)

4096 | 2048 | 1024

512

256

128

MR-11407

ECC PATTERN (RPEC2)
14

|®BiT10|

BIT9 | BIT8 | BIT7 | BIT6 | BITS | BIT4 | BIT3 | BIT2 | BIT1 | BITO

MR-11408

L0dY

RP20
~24-~

RP20

FSC

Error

0000

FSC

0200

CHANNEL

BUS

0901

INVALID

COMMAND

0902

INVALID

SEQUENCE

0903

CCW COUNT LESS
DATA VALUE NOT

0904

FSC

LIST

Description

NOT

GENERATED
OUT

ROUTINE

(CCW)

THAN REQUIRED
REQUIRED

0905

DIAG.

CHANNEL

0907
0908

CHANNEL RETURNED WITH
MPL FILE NOT READY

INHIBITED

0909

MPL

FILE

PERMANENT

SEEK

CHECK

090A

MPL

FILE

PERMANENT

READ

CHECK

IMPROPER

ALTERNATE

TRACK

ABORTED

FILE

MASK

RETRY
INCORRECT

PERMANENT DATA

OVERRUN DETECTED

090D

INDEX

DETECTED

1000

FALSE

DEVICE

1001
1002

DEV
DEV

INTF
INTF

CHECK-TAG
CHECK-~BUS

BUS
OUT

PARITY
PARITY

1003

DEV

INTF

CHECK-TAG

BUS

AND

11FF

HDA

MODE

11XX

HDA

1200

TIMEOUT

GAP

INTERFACE

RECORD
CHECK
CHECK

OR NOT
STATE 6

RECAL,

PAR

0-MOVE

TIMEOUT

RECAL,

TIMEOUT

REZERQO,

1208

TIMEOUT

SEEK,

8-DECELERATE

120A

TIMEOUT

SEEK,

A-ACCELERATE

120C

TIMEOUT

SEEK,

INV.,

TIMEOUT
TIMEOUT

CK
CK

1216

TIMEOUT

12XX
1301

TIMEOQUT CK
SECTOR NON

1310

T.0.

FALSE

DRIVE

1400

FALSE

R/W

WRITE

1-RESET

6~REZERO

C-SEEK

LIN

MODE

SEEK,

E-ON

ST
ST

10-MOVE
12-TURN

OUT
AROUND

16-MOVE

REZERO,

TRACK

INVALID CONTROL STATE
WITHIN TWO INDEX MARKS

CHECK

1402

TRANSITIONS

1404

CONTROL

1408

DELTA

I/W CHECK

1410

CHECK

INDEX

CHECK

CHECK
SEL

1420

WRT

1440

CAPABLE

1480
14F4

MULTICHIP CHECK
PAD GATE ERROR 5

OVERRUN

LATCH

ENABLE

SHORT

CHECK

14F8

HEAD

14XX

MULTIPLE

1500
1506

OVERSHOOT CHECK DURING REZERO
RECALIBRATE TRACK 0 OVERSHOOT

LATCH

R/W

CHECKS
CHECK

1508

OVERSHOOT

SEEK,

150Aa

150C
150E

OVERSHOOT

OVERSHOOT
OVERSHOOT

SEEK,

ST A-ACCELERATE

1510

OVERSHOOT

DURING

1512

8-DECELERATE

OVERSHOOT

CK IN SEEK, ST C-LIN
CK, LOST SERVO TRACK

MODE
FOLLOWING

REZERO

DURING

1516

OVERSHOOT

DURING

15XX

OVERSHOOT

160E

SERVO

OFF

TRACK

ERR

DURING

TRACK

16XX

SERVO

OFF

TRACK

ERR

DURING

INV CTRL

1910

OR SET R/W ACTIVE
ERROR ALERT

TARGET

REZERO
REZERO
INVALID

DURING

STATE

ACCESS

1911

TRANSMIT

1912
1913

MICROPROGRAM
DIFF COUNTER

1914

SYNC

1915
1916

UNEXPECTED FILE STATUS
TRANSMIT CAR ERROR

1917

TRANSMIT.
HAR ERROR

1918
1919

TRANSMIT DIFF COUNTER ERROR
UNEXPECTED FILE STATUS IN READ

OUT

SEEK

SECTOR

COMPARE

TIMEOUT

CHECK

BYTE
ON A

18)
REZERO

CHECK
AT

INTL

SELECTION

IPL

VERIFICATION CHECK

OVERSHOOT
NO

STATE

ERROR

TIMING

191B

STATE

MOTION

DETECTED ERROR (SENSE
OR HAR FAILED TO REST

191Aa

191C

MODE

IN REZERO,
IN REZERO,
IN AN
COMPR

1401

MODE

0OUT

1201

1210
1212

CHK.

FORMAT

1206

120E

CCW

CHECK

CHK~-MULTI

CHECK

RETRY

POINTER

090cC

PAR
SEQUENCE

30)

ERROR

0906

090B

WRITE

(LOAD

PARITY

CHK
IF

CHECK

INTERRUPT

BYTE

FROM

191D

DEFECT

SKIPPING

191E

UNABLE

191F

RETRY

2100

FILE

16,

BIT

BYTE
DRIVE

16,

REORIENTATION
CHECK

BIT
0

BIT

DEVICE
CHECK

(MISSING

REORIENTATION

DETERMINE

INTERFACE

BYTE

ON
ATTENTION)

ERROR

FORMAT

MODE

RP20
~25-

RP20

FSC

Error Description

2102
2104
2108
2110
2120
2140

FILE
FILE

INTERFACE
INTERFACE
INTERFACE
INTERFACE
INTERFACE
INTERFACE

FILE
FILE
FILE
FILE

FSC

LIST

(Cont)

TRANSFER CHECK
BUS OUT CHECK
TAG BUS PARITY CHECK
UNEXPECTED END CHECK
BUFFER PARITY CHECK
SELECT ACTIVE CHECK

2180

FILE

INTERFACE

LOGIC

2186
2188

FILE
FILE

INTERFACE
INTERFACE

LOGIC AND TRANSFER CHK
TAG BUS PARITY CHECK

21XX

2202

COMPARE

2204

LOAD

2210

DATA

TRANSFER

2220

2221

INTERFACE
INTERFACE

CHECK
CHECK

CHANNEL
CHANNEL

B
D

2240

INTERFACE

CHECK

CHANNEL

2241
2280

INTERFACE CHECK CHANNEL C
CHANNEL BUFFER PARITY CHECK

22990
2920

DATA TRANSFER CHECK
CHECK 2 WITH NO BIT

2923

S REGISTER LOAD ERROR
CHECK 2-CI REGISTERS ARE VALID
A CHECK 2 DETECTED IN A SEL SEQ WITH

2924

3XXX

BIT

ASSIST

REG

BITS

FAILURE

ANY

CHECK

BYTE

THE

REG

CAN

CLOCK

3204

ERROR

DETECTED

DECODE

LOGIC

2920
CAUSE

CIRCUITRY

LOGIC

ERROR

3260

ECC

ERROR

DETECTED

SPEC,

3382

ERROR

DETECTED

STATUS

3402
3410
3420

MPL FILE NOT READY
ERROR DETECTED IN CTRL
ERROR DETECTED ON CTRL

3480

AND

DOUBLE

BIT

ERROR
OP

DECODE

REG.

CIRC,

OP CH/CL

BRANCH

STOR WRITE BUS 1/3
STOR WRITE BUS 0/2
ERROR DET. ON CTRL STOR WRITE BUS 1/3 AND 0/2
STORAGE ADR BUS 8-15 CHECK (IF BYTE 10, BIT 5
STORAGE

ADR

BUS

8-15

STORAGE

ADR

BUS

0-7

CHECK

REF

3488

STORAGE

ADR

BUS

0-7

STORAGE

ADR

BUS

0-7 AND

34C8
3501

STORAGE ADR BUS
MPL READ CHECK,

3504)

CHECK

0-7
MPL

8-15 CHECK

AND 8-15 CHECK
PAR ERROR DETECTED

3502

ALU

3504

3506
3508

B
A

350A

3530

CHECK

ERROR

BUT

BITS

BYTES

3930

CHECK

ERROR

BUT

BITS

BYTES

4940

ECC

DATA

CHECK

4941
4942

ECC
ECC

DATA
DATA

CHECK
CHECK

COUNT FIELD
KEY FIELD

4943
4944

CHECK

ECC DATA CHECK DATA FIELD
NO SYNC BYTE FOUND HA FIELD

CHECK

AND

CHECK

ALU

CHECK

FIELD

4945

SYNC

BYTE

FOUND

COUNT

4946

SYNC

BYTE

FOUND

KEY

4947

SYNC

BYTE

FOUND

DATA

FOUND

DURING

TAG

VALID

FIELD

RETRY

9001

MISSING

9002

NORMAL
R/W OR

9003

9004

TIMEOUT

9005

ECC

9005

MULTIPLE

9007
9008

PRESELECTION CHECK
REPETITIVE CMD OVERRUNS

R/W

OPERATION

OR CHECK END MISSING
ECC OPERATION

RESPONSE

FROM

WAITING

HARDWARE

9009

REP.

900A

PHYSICAL

900B

BUSY

900E

DEVICE

CMD

CTRL

FOR

CONTROL

SELECTED

OVERRUNS

ADDRESS

CHECK

AFTER

INTERFACE

900F

ATTENTION

CHECK

REORIENT

COUNTER

9102

TRACK

9104

WRITE

COUNTER

FAIL
CONTROLLER

INDEX

CONTROLLERS

MISSING

FOLLOWING

MODULE

CHECK

9101

9108

CIRCUITRY

CHECK

34CO0

4949

DEVICE

FAILURE

BIT

3381

3430

3440
3448

CHECK

DETECTED

ECC

SUSPECT

SYMPTOM

ERROR

DOUBLE

ON,

BYTE

31XX

3240

CHECK

BYTE
IN

FORMAT

3220

CHECK

BUS

0OPS.

(WRONG

ADR.

SEEK

START

OPS.

RET.)

ISSUED

FAILURE

(DEV ATTN

FAILED

CHECK

PARITY

CHECK

RESET)

OPERATION

RP20
-26-

RP20

FSC

LIST

(Cont)

FSC

Error

Description

9110

DEVICE

9118
9120

DEV AND CONTR
CHECK 1 OF 8

9140

BUS

OUT

PARITY

CHECK

9180

TAG

BUS

PARITY

CHECK

91FF
91XX

CONTR INTERFACE BUS IN ASSEMBLY FAILURE
SOME FAILURES CAUSE MULTIPLE FSC's

9200
9201

FALSE
ECC 0

BUS

PARITY

CHECK

BUS

PAR

CHECK

9202
9204
9208

CONTROLLER CHECK
COMPARE (NORMAL COMPL
ECC HARDWARE CHECK
STATUS MONITOR CHECK
WRITE DATA PARITY ERROR

9210

GAP COUNTER CHECK

9220

9240
9280
92C0
92XX

SHIFT REGISTER ERROR
MISSING SERVO DATA
VFO PHASE ERROR
MISSING READ DATA
SOME FAILURES CAUSE MULTIPLE

93XX

INVALID

SYMPTOM

MODULE

R/W)

FSC's

CODE

ADDRESS

JUMPERS RP20

CJO03

CJO04

OFF
ON

C
OFF

ON
C

OFF

WO IO
WN

FAULT

RP20

Command
Control

MT OFF* | MT ON* | Count
|Orient(c)

Recalibrate

Nonzero

Seek
Seek Cylinder

Nonzero

07
0B

Seek Head

Space Count

Restore

(a,f)

(executes as a no-op) | 17

53
73
39

1
512
4

Identifier High
Identifier Equal or High

51
71

Bl
D1
Fl

Key Equal
Key High

5
5

Key Equal or High

Cc9

KL
h

(d)
Key and Data High (d)
Key and Data Equal or Hi

Continue| Search Equal

(d)

Search High (d)

Search High or Equal
Set Compare

CD
ED

ES5

(including

} mask bytes)
in search

argument
J

Home Address

Number

of bytes

Data

Key and Data
Count, Key and Data

to be

transferred

IPL

(b) | 5E

(a,f)

Sense I/0

Sense I/0 Type (b)
Reset Buffered Log
Read Buffered Log (c)
Device Release (e)
Device Reserve (e)
Read Diagnostic Status 1
Home Address
Record 0

(b)

(a)

Erase

Count,

Key and Data

> Max.

128

94
B4

24
24

(d)

(a);

(d)
(4)

(a); 6
16 or 512

5, 7, or 11

8+KL+DL of RO

8+KI+DL

8+KL+DL

Key and Data

KL+DL

Code same as MT Off except as listed.

Except 2314,

track len.

(a),

Data

Special Count, Key and Data

2319

3330-3340-3350 series only.
2305/2835 only.
d
2314, 2319 only.
e. String switch or 2-channel switch required.
f. Special feature required on 3340.
c.

Number
of bytes

Count

Read,

(d)

Record 0

Sector

Write

(d)
(d)

Multiple Count, Key, Data
Sense

4D
6D

(d)

Set Compare
No Compare

Read

(d)

nonzero

Nonzero

Vary Sensing(c)

Diagnostic Load (a)
Diagnostic Write (a)
|Home Address Equal
Identifier Equal

Key and Data Equal

Scan

3(a);

Set File Mask
Set Sector

8+KL+DL

RP20
-28-

ROUTINES

NONLINKED

Hex

Routine Number

ADJUSTMENT

SERVO

D9
DA

INCREMENTAL SEEK
SEEK
RANDOM SEEK

CYL-CYL

RESONANCE

PUMPED

CRASH

STOP

SERVO

MARGIN

SYNC

UTILITY

READ

UTILITY

DISPLAY

DISPLAY DRV CONFIG/SN

DISPLAY

MEMORY

SCAN

E9
EA
EB

PANEL

HDA STATE ANALYSIS
DISPLAY SENSE DATA
TAG

UTILITY

STRING

SW/DUAL PORT

MANUAL

INTERVENTION

TRACK

(FEATURE)

ANALYSIS

ROUTINES

LINKED SERIES

Routine Number
Cl

c2
C3
c4

Hex

CONTROL INTERFACE
DRIVE INTERFACE
BASIC SERVO
INDEX AND SECTOR
COUNTER
READ-WRITE

C5
C6

GAP

PADDING

BASIC

ECC LOGIC

Drive

COMPLEX SERVO

R/W MARGIN

OVERWRITE

must

REORIENT CTR/TR CTR }

ready

R/W RELIABILITY
DETECTION

REFORMAT FE TRACKS “

PROGRAM

CONTROL

DATA

DISPLAYS

Program Control

Data

ROUTINE

RTN

NO.

ROUTINE

RUNNING

RTN

NO.

DYNAMIC

ERROR

REPEAT

ERROR

DISPLAY

TEST

AFTER

1640]

INVALID ROUTINE

ROUTINE

READY

MANUAL

INTERVENTION

REQUIRED

FOR

NORMAL END
PARAMETER ENTRY

El
EX

ERROR/MESSAGE
ERROR/MESSAGE
4-7:

BYTE

NO.

ERROR

SYSTEM

RESET

EXECUTION

DISPLAY

CF
DX

BITS

RFTN

NO.

RTN

NO.

RTN

NO.

COMPLETE

RTN NO.
RTN NO.
ERROR/MSG

REQUIRED

STOP
BYTE
NUMBER

BYTE

BEING

DISPLAYED

NO.

RP20
-29-

CONTROL
Hex
CX

DRIVE

00
10

START/STOP ROUTINE
PARAMETER ENTRY

START

RESET DIAGNOSTIC CONTROL
8000 MOD-II AND ISC-RESTORE

SELECTION

SYSTEM

MOUNT

ADVANCE

CODE

EXECUTION

ERROR/MESSAGE

GENERATOR

FUNCTIONAL

FLOPPY

Data

Control

Display:

ERROR

INVALID
DRIVE

PHYSICAL

NOT

WRITE

05
06

MULTIPLE DRIVE SELECT
INCORRECT DRIVE TYPE

HDA

Hex

Entry

PARAMETER

NOT

ADDRESS
ENABLED

SEQUENCE

TAG

ENTRY

ONLINE

ERROR,

FROM

CHECK

FOR

CHECK

MODE
DRIVE

INHIBIT

LOOP

SINGLE

ROUTINE

LOOP

SINGLE

ROUTINE/DYNAMIC

RESET

LINKING/DYNAMIC

READY

REPEAT

ERROR
TEST

RUN

OPTION

DISPLAY

AFTER

ERROR

ROUTINE(S)

INHIBIT

OPTIONS

ERROR

OPTION

SIGNIFICANCE

DYNAMIC

SWITCHES

DYNAMIC ERROR DISPLAY REPEAT TEST AFTER
LOOP ROUTINE(S)
DYNAMIC ERROR DISPLAY/LOOP ROUTINE(S)
INHIBIT LINKING

LOOP

DRIVE.
FE

VALID

RUN

BIT

STOPS

Display:

AREA.

ISC.

DISPLAYS

FAULT

OVERLAY

COMMON
Program

02
03

OPTIONS

Entry

LINKING

RESET OPTION—————1

ERROR

DISPLAY

ERROR

ENTRY:

DISPLAY

RUN

ROUTINE

BIT

COMMAND | INTERVENTION
REJECT

PERMANENT
ERROR
NOT

BUS OUT

EQUIPMENT

PARITY

REQUIRED

YAk

FORMAT

DATA

OVERRUN

CHECK

NOT

RENORD

ENVIRONMENTAL

NOT

DATA

CORRECTABLE

CHECK

USED

BYTE 8-23

6
NOT

USED

WRITE

FILE

PROTECT

EMULATION

INHIBIT
NOT

NOT

7
NOT

USED

OPERATION

INCOMPLETE
NOT

Nor

RESTART COMMAND

BYTE 1 BIT 7=0 - LAST CHANNEL COMMAND IN THE CCW

BYTE 1 BIT 7=1- OPERATION IN PROGRESS WHEN OBR WAS GENERATED
PHYSICAL DRIVE IDENTIFICATION

DRIVE
8OR 0

DRIVE
S0R1

128

DRIVE
AOR2z

DRIVE
BOR3

DRIVE
COR4

DRIVE
DOR5

DRIVE
EORS

DRIVE
FOR7

LOGICAL CYLINDER ADDRESS LOW

HIGH

CYL ADD

1024

HIGH NAT/-11 | HIGH NAT/-11
CYL ADD

CYL ADD

512

256

|
LOGICAL

(HEA
L TR TRACK K (HEAD]

1
MR-6083

_OE_

0zdy

INFORMATION COMMON TO ALL FORMATS

FORMAT 0

MESSAG E

MESSAGE

MESSAGE ONLY

SENSE BYTES 8-23 NOT USED

SENSE BYTE 7 FORMAT/MESSAGE

INVALID

CCW COUNT

DATA
ARGUMENT

DIAG /W
INHIBITED

CHANNEL
ABORTED

CHANNEL
W 1

MESSAGE

COMMAND

FILE
NOT BEADY

PERMANENT
AN

MPL FILE

SEQUENCE

LOW

TGuMEL

sy FLETER

BORTE

INCORRECT

MPL FILE

COMMAND

DATA

DEFECTIVE

ALTERNATE

NOT

PERMANENT
A K

OVERRUN

TRACK

USED

MR-6084

DRIVE EQUIPMENT CHECK
0

MESSAGE

SENSE BYTE 7 FORMAT/MESSAGE

TRANSMIT

MICRO-

TRANSMIT

SYNC OUT

UNEXPECTED

TRANSMIT

ERROR

HIGH ERR

ERROR

ALY

TRANSMIT

DRIVE STAT
NOT AS

SEEK VER
CHECK ON

SEEK
INCOMPLETE

NO
INTR

DEFECT
SKIPPING OR

NOT

DURING RD IPL

ADDRESS

COMPARE CHECK

DIFFERENCE

EXPECTED

PHYSICAL

OR SECTOR

FROM

DRIVE

REORIENTATION

USED

F
RETRY

REORIENTRTION
MR-6085

0Zdd

FORMAT 1

BYTE

SENSE BYTES 8-13

BYTE 19 BIT0-0| CONTROLLER
cci7o
WRITE OR READ
DRIVE STATUS

BYTE 19 BIT 0=1 |(REF BYTE 17820)

SECTOR

HECK

ONLINE

ATIN D

ACCESS HDA

COMPARE
DHO60

CONTROL

10
HDA/SEQ

FMT
LTH
FMT ERR/
RROR

SW
LOAD
STATUS

DRIVE

St
DHO10

GUARD BAND

A005

VELOSTY

TICRIP
MULZHECK

CAPABLE
ENABLE
NS

WRITE
OVERRUN
ERR,

DEO10

HDA SEQUENCE STATE LATCH
2

TARGET

TRACK

LTA /W
ety
1EC

DE025

DF070

BH00s

3330 M

33300 e O

INHIBIT
HDA

GEMINI

oDD
TRACK

AlR

GEMINI

MOTOR

RECYCLE

HDA

STAT 7

SoN
DHO85

DENSITY

SPEED
DHO10

CONTROL
HECK

TRANSITIONS
CHECK

CHECK
1 WRITE

UstD

DA005

DE015

CHECK
LTH

K et1

33301170,
DH'0.0:%. 1%

HEADS
DHO05

HDA
SEQUENCE

INDEX
CHECK

Susy

FIXED

WRITE

CROSSING
DAO25

AD INP
DE%?OG RESS 'NogéohfsA RK
PAD

ENABLE
DHO010

LTH
ON
DHO010

LTH
DHO10

DF030

AIR SWITCH

MOTOR AT

DE030

DOUBLE
DEO35

DEO35

BUS OUT AT TIME OF ERROR WHEN SENSE BYTE

MESSzAAGNEDCgDE

18=01,03,05,06 OR 0OC

LOGICAL CYL ADDRESS LOW PRIOR TO SENSE BYTE 5

A OR B

RO/WR
BUS OUT PAR | ACCESS CHECK
NONCOMPARE | (REF BYTE 12419)
WRITE 1
DE0OS
DP050
DDO10

TAD

MESSAGE CODE

TAG BUS OR

CHECK
STATUS

0Zdy

BIT

128

MR-6091

.—ZE_

FORMAT 1

BYTE

SENSE BYTES 13-18

BIT

’

13
MESSAGE CODE

EXPECTED DRIVE STATUS/DATA

1,3,5.6,7.8,89

MESSAGE OTHER

CONTROL INTERFACE BUS IN AT TIME OF FAILURE

THAN A&B
IF BIT 0&1=11

FIXED HEAD

512

BYTE 6
|

CONTROL INTERFACE TAG BUS AT THE TIME OF THE DETECTED ERROR

oME

OVER SHOOT

OF040

DF030

CHECK

VFO PHASE CK

10=

SERVO

REZERO

SERVO

nEnT

CONTROL

DFO10

LATCH

DFO50

DF010

DF070

DF010

DF040

GAP

WRT DATA

CHECK

ERROR

OFF-TRACK
SHIFT REG

01=MISSING SERVO DATA

11 =MISSING READ DATA

ERR

CC140

NOT USED

CC140

LATCH

CNTR

CF120

LATCH

STATUS

ECC

CHECK

COMPARE

PARITY

MONITOR

HARDWARE

CC140

CJ160

CD100

CHECK

WAL

CD100

CODED ERROR CONDITION

(BITS 4-7 HEX) LISTED BELOW

0Zdy

TRACK
= HEAD

256

LOGICAL TRACK PRIOR TO SENSE BYTE 6

LOGICAL CYL ADDR HIGH PRIOR TO

-€€=

MESSAGE

CODE A&B

0Zdd

BYTES 18, BITS 4-7
0

NOT USED
8

1!
NO TAG

NO NORMAL | NO RESPONSE

VALIDON | ORCHECKEND
| FROMCNT
R
N

OPERATION | ECC OPERATION | CNT OPERATION

REPETITIVE

POLLQR

REPETITVE SMNCloMnD overruns|

G2 OR G3 | pECODE ERROR
QN.G2ORG3
G1OPERATIONS [ ON

INDEX

SELECTED

WAITING FOR | ECC HARDWARE | NO CNT

DEVICE

START
TART IIS

6!
MULTIPLE OR

BUSY MISSING

AFTER SEEK

TIME OUT

ERROR

PRESELECTON
F

PRESELECTION

CHANMEL | DiSK'CONTROL | UNRESETABLE
INTERRUPT

ERROR

INTERFACE

NOTE

| SENSE BYTES 13.14.15 ARE VALID FOR THESE MESSAGES

-VE._

MR-6092

SENSE BYTES 19-23

BIT

BYTE

19
20

OPESI\TR;{)\“ 85

NOT

USED

CH100

TAG BUS
PARITY

BU
PARITY

CHECK

NOT

1.2M8
FILE

ALWAYS
ON

TRACK

REORIENT

COUNTER

USED

CHECK

DEVICE BUS IN

PARITY

CHECK

CIN50

128

CH120

LATCHED
CJ150

SHORT
LATCH

GATE 5
ERROR

CONTROLLER

CURRENT (1)

DEO15

BUS

PARITY

CHK LATCHED
CD180

DE110

WRITE

CHECK

CHECK GTD

CC170

cC170

QUNIE

LOGICAL CYLINDER ADDRESS LOW

MESSAGE A AND

5
PAD

LATCHED

BYTE 0 BIT 3=1

BYTE O BIT 3=1

4
HEAD

CHECK
CH120

MESSAGE A AND

BITSO& 111

512

FIXED HEAD
LOGICAL CYLINDER
ADDRESS HIGH

NOT

USED

NOT

USED

LOGICAL TRACK (HEAD)
256

NOT

USED

22-23

NOT

USED

8
NOT

USED

4
NOT

USED

BUS OUT

TAG

B0 PAR)

pDUS

_gg_

FORMAT 1

FAULT SYMPTOM CODE
MR-6093

DCU ERROR
0

MESSAGE

SENSE BYTE 7 FORMAT/MESSAGE
1
NOT

USED

2
NOT

USED

S REG

CTL INTF

LOA
CHECDK

REG VALID
SENSE
BYTES

MESSAGE 5-F

NOT USED

13-15

MR-6086

0Zdd

FORMAT 2

BIT

DCU CHECK

SENSE BYTES 8-23

LOGIC

REGISTERS

ASSIST

0cdd

FORMAT 2

NOT USED

8-10
c

CONTROL
CHECK

PARITY
CHECK

CHANNEL
AORC

CHANNEL

TRANSFER

B ORD

CHECK

CONTROL INTERFACE (CONTENTS OF TA REGISTERS. VALID ONLY IF SENSE BYTE 7 IS 24)

CONTROL INTERFACE BUS-IN (CONTENTS OF MA REGISTER, VALID ONLY IF SENSE BYTE 7 1S 24)

CONTROL INTERFACE BUS-IN (CONTENTS OF MD REGISTER, VALID ONLY IF SENSE BYTE 7 1S 24)

TO 0
NOT USED SET

16-19
20

MULTI-

CONNECT

SETTO
0

CONTROL
MODULE
o

CONTROL
MODULE
ACTIVE
CHECK

CONTROL

CHECK

END CHECK

MODULE
MODULE
BUFFER PARITY | UNEXPECTED

CONTROL
MODULE
TAG BUS
CHE

NOT USED SETTO
0

22-23

FAULT SYMPTOM CODE

CONTROL
MODULE
BUS-OUT
CHECK

CONTROL

MODULE
TRANSFER
CHECK

MR-6094

FORMAT 3

MESSAGE

SENSE BYTE 7 FORMAT/MESSAGE

FORMAT 3

[

NOT
USED

SENSE BYTE 7/MESSAGE NOT USED
SELECTIVE RESET
MR-6087

BIT

SENSE BYTES 8-23

]

LATE ERROR

SENSE BYTE 10
BIT 0=0

STORE

ADDRESS
BUS 0-7
CHECK

cLOCK

ERROR

SPECIAL
OP ERROR

A REG

B REG

ALU

MPL READ

CHECK

STORE

MULTIPLE

READ ERROR

STORE

ADDRESS
BUS 813

STORE c

ECC LOGI

ERROR

STORE

WRITE
BUS

213 CHECK

STORE

WRITE

CHECK

oeggoe

ERROR

MPL

CHECK

READY

0/1 CHECK

SYNDROME REGISTER

TC REGISTER (THIS REGISTER IS RESET IF SELECTIVE
RESET OCCURRED IN RESPONSE TO DISCONNECT
IN)

TG REGESTER (THIS REGISTER iS RESET IF SELECTIVE RESET OCCURRED

15-23

FAILING ADDRESS (BACK-UP ADDRESS REGISTER BUS 813)
BIT 0=
1
EARLY ERROR

BIT 0=0

SE%?TEOBLTE 10

FAILING ADDRESS (BACK-UP ADDRESS REGISTER BUS 0-7)

NOT USED

IN RESPONSE TO DISCONNECT IN)

SET TO 0

MR-6095

0Zdd

BYTE

_LE_

FORMAT 3

MESSAGE

COUNT

KEY

DATA

HA FIELD
SYNC

FIELD
COUNT
NO SYNC

FIELD
KEY
NO SYNC

FIELD
DATA
NO SYNC

DATA

FIELD

CHECK

DATA CHECK

wot | AMBRIURE
ON RETRY

USED

FIELD

DATA CHECK

FIELD

DATA CHECK

BYTE FOUND

A-F NOT USED

MR-6088

...82._

MESSAGE

0
HA ECC

0Zdy

FORMAT 4 DATA CHECKS UNCORRECTABLE SENSE BYTE 7 FORMAT/MESSAGE

FORMAT
4 DATA CHECKS NOT PROVIDING DISPLACEMENT INFORMATION

BIT

SENSE BYTES 8-23

512

256

CYLINDER ADDRESS OF THE RECORD IN ERROR

[

CYLINDER ADDRESS OF THE RECORD IN ERROR

128

HEAD ADDRESS OF THE RECORD IN ERROR

RECORD NUMBER (UNRELIABLE MESSAGE 0 OR 4, ERROR HA)

SECTOR NUMBER OF THE RECORD IN ERROR

128

14-21

NOTE

BYTE 15= RETRY COUNT

_GE_

(UNRELIABLE MESSAGE 1 OR 5, ERROR COUNT FIELD
)

NOT USED

22-23

FAULT SYMPTOM CODE
MR-6096

DATA CHECKS CORRECTABLE
0

MESSAGE

NOT

USED

NOT

USED

FORMAT/MESSAGE
3

USED

DATA FIELD

CORRECTABLE
ORRECTABLI

MESSAGES 4 - F NOT USED
MR-6089

0cdyd

FORMAT5

BYTE

SENSE BYTES 8-23

CYLINDER ADDRESS OF THE RECORD IN ERROR

]

512

256

CYLINDER ADDRESS OF THE RECORD IN ERROR

128

{

HEAD ADDRESS OF THE RECORD IN ERROR

11
0

[

RECORD NUMBER SET TO 0 IF ERROR OCCURRED IN HA

]

SECTOR NUMBER OF THE RECORD IN ERROR

0Zdd

DATA CHECKS PROVIDING DISPLACEMENT INFOMATION

]

NOT USED

15,16,17

IDENTIFIES THE NUMBER OF BYTES PROCESSED BY THE DCU FROM THE INITIATION OF DATA TRANSFER AND THE END OF THE DATA FIELD

18-19

ERROR DISPLACEMENT, SPECIFIES THE FIRST BYTE IN ERROR WITHIN THE DATA FIELD WITH RELATIONSHIP TO THE END OF THAT DATA FIELD

20-21

ERROR CORRECTION PATTERN (EACH BIT IN ERROR WILL BE INDICATED BY A1)

ALWAYS 0

NOT USED
MR-6097

_Ov.—

FORMATS5

FORMAT 6

BYTE

8-11

USAGE AND OVERRUN ERROR STATISTICS

[

SENSE BYTES 8-23

NUMBER OF BYTES READ OR SEARCHED (KEY AND DATA FIELD

12-13

NOT USED

14.15

ONLY)

SET TO ZERO

NUMBER OF DATA CHECKS SUCCESSFULLY RETRIED

16-17
18

NUMBER OF ACCESS MOTIONS
CHANNEL SELECT FOR

SENSE

BYTES 20-23

BIT 0=0 INFORMATION

APPLIES TO INTERFACES A AND

IF BIT O=1 INFORMATION APPLIES TO INTERFACES C & D

BITS 1-7 NOT USED

TOTAL SEEK ERRORS RETRIED

COMMAND OVERRUNS A (C)

DATA OVERRUNS A (C)

;113

COMMAND OVERRUNS B (D)

DATA OVERRUNS B (D)
MR-6098

MESSAGE

USAGE AND OVERRUN ERROR STATISTICS

FORMAT 6 - MESSAGE C-F ARE NOT USED
MR-6090

0Zdd

FORMAT 6

S/X Bu

S/X BUS

Table

GENERAL

Contents

DESCRIPTION. ¢ teveeoesscsoscccsoascosoooeansesssssessessesssl

INtroQUCEiON. e eeeeeeeesoososessasscsscsccssoaoasesesssoasancasssl
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DesSCriptioN.eeesceeeceeecececeeseesoosscsscacnoncesesnsel

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INSTALLATION .t eeeeeesosesessssessssassossssescsscscssoccsescsescsscsnased

Introduction.....................................................5

Cabling

into

SySteMececeeeceess

Procedure

SBus

with

Procedure

SBus

wWith

MAZO/MBZO

ttesesecsssssesssesscsnssssaased

Memory........................5
DMA20...ceeeeeeececcccoceoccsccasossnansesbd

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SWitcCh SettingS.eieeeeeeseeseesecscssceoncenecncseacsccasssaseseb

DesSkewing
Removal

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Interconnecting CableS.eeeeeeeeeeeeesoseesesoosasonessB

OPERATION. ¢ eveveeoooccasconssasscsssassscsncsocsocssnassosscssnosscsceseaell

INtrOAUCEION

Controls

e tteeeueeescesssoanesssoeccsnaeosoncsoscsssasacessall

and INAicCAtOrS..eeseescesecesoccososocesssacssasssensneall
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Control/Error

(CR/ERR) ceeeeeenoeoasoooconcoecnsensenaal?
(DRL) uueeceeoeoseoceccoaosocossosenannnnnans 14

Data

Left

Data

Right

RAM

(DRR) eseeseescccesecesoeacocsscsconcnnansald
RegISLEr.u.eeevesesessoososcsccsosescscccncosonocscnsssoald

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S/X Bus Recorder OperatiON.eeeeeeeececescesssesesssscssassssescnssalb
Dumping
Dumping

Manual

the
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Operation
Error

Recorder
Recorder

Dumping

with

MOS

Data

Memory

Parity

S/X

KLDCP OF RX20F ....eeeeeooscscancceseselb
DGSBA..ceeieeeecescececoacocescsceaseslb
BUS RECOIAEr..veeeecescssccsccssceseal’

Memory

Interpretation.

Internal

via
via

the

and TGHA....eeeeeeeesoeaoocoonosessolB
i eeecsecescescecescsccesoosecacnscssescsesasl8

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Data

Parity

Error
Error

Data

Parity

Error

Data

Parity

Error

Read-Pause-Write

#l....eeeecsecoccececsceoosesonnocsssaseseal8
#2..ceeeeeesecossscoscsccccccscccocssosesesd
#3..ceeeeeseoscosocecconsecaenononosnassanesell
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Failure

Read-Pause-Write
DMA

Failure (Read POrLtioN)eeceeececeeoessceccceeseold
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Preliminary

Operating
LoAding

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Operation
Test

Control

Modes

and SWitCheS..eieeseeeeececeocceccnsanasosseld
SwitCheS..iieeeieeereeeececeoesoeesecocscansssenesslb

S/X BUS

GENERAL

DESCRIPTION

Introduction
This
section
provides
all
the
information
required
by
an
experienced Field Service engineer to use the S/X Bus Recorder to
diagnose
KL10
SBus
errors.
Included
are
instructions
for
connecting
the
recorder
into
a
system,
explanations
of
the
functions
of
all
controls
and
indicators,
and
error
interpretation.
Physical Description
The S/X Bus Recorder
is
contained
in
a
portable,
suitcase-like
aluminum housing.
All controls and indicators are located on a
console
power
case.

panel.

connector

The

S/X

The

SBus

are

stored

Recorder

Bus

input

and

output

connectors,

compartment

available

two

Part

number

9307042-00;

117

Vac,

Part

number

9307042-01;

234

vVac,

Console

Description

Recorder

are

All

located

controls
the

and

console

the

indicators
panel.

and

the

back

models:

for

These

S/X

Bus

controls

the

and

Recorder

are

indicators consist of a function select switch, register and RAM
address select thumbwheel switches, a 6-digit octal LED readout, a
2-digit octal LED readout,
and
a
series
of
toggle switches
for
various control functions.

Logic

Modules

plugged

into

consists

All

9-slot

1logic

modules

hex

the

backplane.

five double height modules
slots.
One slot is unused.
The

eight

follows

(see

Figure

S/X

Bus

The

board

in
as

1).

Slot

Module

IA/F1

G5348

Hex

Recorder

ICD2

G5349

Double

Console

IA/F3

G5347

Hex

Translator

Function

Hex

logic

IA/F4

G5347

M9006

Double

Cable

IEF5

M9006

Double

Cable

connector

IA/F6

M8572

Hex

Cable

connector

ICD7

M9005

Double

Terminator

IEF7

M3005

Double

Terminator

IA/F8

M8572

Hex

Terminator

ICD5S

complement

and
five hex modules
module utilization is

Translator

connector

or
or

cable
cable

connector
connector

REAR

MOO05

E—
N

BC20C

UNUSED

M8572-YB

8§

M9005

M8572

BC20C

G5347

G5349

G5348

HE
X

FRONT

Figure

Power

Supply

provided
supply

The

Backplane

operating

L-H

outputs

are

research
as

voltages

model

-5.2

Vdc

-2.0

vVdc

3.
4.

5
5

5.5

1.5

supply

contained

power

15.24

¢cm

weighs

4.5

cm,

pounds).

Layout

for

TM-34

(Top

the

View)

S/X

power

Bus

Recorder

are

supply.

The

power

that

69.9

follows.

Vdc
Vdc

MR-4329

A
A

2.04

(2.75

subassembly
in.

6.0

in.

13.0

in.

and

S/X BUS
-4-

The

power

supply

readjusted,
1.

require

normally

proceed

during

readjustment.

its manufacture

Rotate

the

should

not

bottom of
the
suitcase
recorder console top.

and

the

and

voltages

must

follows.

Remove all
screws
from the
remove eight screws from the

two

console

panel

locking

screws

degrees

and
lift panel
upward.
Disconnect the Mate-N-Lok
connecting the two cooling fans to ac power.

plug

Remove

the

gain

access

Verify

that

the

backplane

adjusted
as

Plug

recorder
the

recorder

assembly

backplane

the

from

the

suitcase

for

voltage

following

modules

are

2-G5347,

G5348,

provide

into

load:

receptacle

measurements.

set

present

G5349.

power

switch

ON.,

Connect a digital voltmeter to the test points listed
below and adjust the appropriate potentiometer for the
correct voltage.
Access to the potentiometer is gained
through
a
rectangular
hole
in
the
recorder
housing.
Refer

Figure

Voltage

Test Point

Potentiometer

-5.20

C03B2

-2.00
+5.00

CO3B1
CO3A2

+5,00

I::I V1 ADJ.

V2
V3
TAB

(IND.BD)

V3 ADJ

I::I V4 ADJ

MR-5391

Figure

Cooling

Potentiometer

Locations

- Cooling
for
the S/X Bus Recorder is provided by
4-inch
fans
located
in
the
suitcase
assembly.
The
fans
different
for
the
50
Hz
and
60
Hz
versions
of
the
S/X
Recorder.

two
are
Bus

S/X BUS

INSTALLATION

Introduction
This section provides
S/X Bus Recorder into

all the information required to connect the
a system and disconnect it after testing is

completed.

There

are

system

three variations
being tested:
MA20

cabling,

SBus

using

SBus

using

DMA

XBus

using

MF20 memory

MB20

depending

installation
of
the
cables,
the
combination must be powered up and deskewed
S/X

Bus

Recorder

the

type

memory

After
the

clock

the

KL10
SBus
recorder
to align the clock in

KL10.

This

procedure

common to all
cabling variations.
After the deskewing procedure
is
completed,
testing
can
proceed
using
the
S/X
Bus
Recorder
console panel and SBus diagnostic.
On completion of testing, all
recorder
clocks
must
be
checked
and
disconnected, and bus terminations replaced.

Cabling into System
Perform Procedures 1,
the S/X Bus Recorder
switches as described
to

the

2,
or 3
into
the

deskewed,

cabling

below,
as appropriate,
to
system.
Set
the bus and

connect
address

in the Switch Settings section. Then proceed
Procedure
section
to
perform
the
deskewing

Deskewing

procedure,

Procedure

Power

SBus

with

down

Open

Remove

the

MA20/MB20

the

lid

the

Memory

KL1O0.

the

BC20

S/X

Bus

Recorder.

cables

from

the

cable

compartment

the

recorder.
4,

Rotate

the

panel

and
5.

fasteners

the

recorder

the

panel

Remove

the

MA20/MB20
6.

two

hinge

two

double

memory

the

terminator

1CD7

the

S/X

Bus

front
turn

the

console

counterclockwise

height

SBus

1AB52

board

terminator

and

boards

from

1CD52.

removed

from

1AB52

slot

removed

from

1CD52

slot

Recorder.

Install

the

terminator

1EF7

the

S/X

Plug

one

end

recorder,

and

plug

Bus

slots

Install
of

the

one-quarter

upward.

board

Recorder.

BC20C-6C

1CD5

the

into

slot

1AB52

the

Plug one end of the other BC20 cable
the
recorder,
and
the other
end
into

into
slot

slot 1EF5 of
1CD52 of the

the

cable

other

end

into

slot

MA20/MB20.

MA20/MB20.
10.

This

completes

Proceed
and
2:

Power

Open

Remove

SBus

the

recorder

into

the

system.

and

set

the

section

bus

1lid

KL1O.

the

S/X

BC20C-6C

Bus

cables

Recorder.
from

the

cable

compartment

recorder.

Rotate

the
on

two

recorder

the

panel

the

one

recorder,

the

front
turn

cable

slot

end

and

the

one-quarter

the

console

counterclockwise

upward.

BC20C-6C

recorder

Connect

fasteners

the

hinge

Remove

the

Settings

DMA20

the

cabling
Switch

switches.

with

down

panel
and

the

address

Procedure

the

from

DMA

slot

1ABO]1

and

install

1CDS5.
a

BC20C-6C

other

end

cable

into

slot

1ABOl

1CD7
the

DMA.

the

S/X BUS
-6~

Remove

Connect

This completes
Proceed to the

the

and

Procedure

the

BC20C-6C

recorder

the

recorder,

address

slot

cable

remaining
and

from DMA slot

1lEF5,

slot

BC20C-6C
1CD0l

cable

slot

cabling
the
recorder
into
Switch Settings section and

install

1EF7

the
set

system.
the bus

switches.

XBus with MF20 Memory
the KL10.

down

Power

Open the

Rotate the two fasteners at the
panel on the recorder one-quarter

lid of

hinge

the

panel

S/X Bus Recorder,

Remove the M8572YB board

Remove
the

front of the console
turn counterclockwise

upward.

from

the DMA.

and

1CDO1 and

from slot

1A/F8 of

the

recorder.

from PC22,

PD22,

PE22,

and PF22

four terminations
MF20.

Install these terminations on the M8572YB module.

Plug the M8572YB module into slot 1A/F8 of the recorder.

Connect

from

cables

the

M8572

1lA/F6

slot

follows.
From

Pl
P2
P3
P4

MF20/PC22
MF20/PD22
MF20/PE22
MF20/PF22

This completes
Proceed to the

and

address

the
set

into
recorder
cabling the
Switch Settings section and

system.
the bus

switches.

Switch Settings - Switches on the G5347 boards select whether the
A switch on the G5348
recorder is used with the SBus or XBus.
board selects the recorder address if two recorders are used.
The bus select switches are S001 on
located in slots three and four of the

each of two G5347 boards
recorder. (Refer to Figure

recorder

is to be used on the XBus,

3.)

Set both switches to ON if

OFF

two

other

board

for

the SBus.

recorders

37.

The

are

the

used,

address

one

switch

assigned

located

address

S001

and

the

the G5348

in slot one of each recorder, as shown in Figure 4.

Set the switch to OFF if the recorder address is 36, and ON if the
recorder

address

37.

S/X BUS
- 7_

BUS SEL SW

N—

(ON = XBUS)

(OFF = SBUS)

|—

$001

£510

E512
C— R098

— D003
2 RO89

— D001

DEWH

MODULE # G5347

]

[

NOTE

THE S/X BUS RECORDER CONTAINS TWO G5347 MODULES THE BUS
SELECT SWITCH MUST BE iN THE SAME POSITION ON EACH MODULE
MR-4557

Figure

REC ADR (2°) SW

Bus

L1 RO33

Switch

Location

{OFF = 36)
(ON = 37)

N
5001

Select

———2

lj E616

D001

D E517
MODULE #
Gb5348

[]

[

]

[
MR-4558

Figure

Recorder Address

Switch

Location

S/X BUS
-8-

Deskewing

Procedure

Perform

either

the

MA20/MB20

DMA20

deskew

procedure, as appropriate.
These procedures are in the Checks and
Adjustments
section
of
the
KL10 Maintenance Guide,
Volume I
(EK-0KL10-MG).
Then perform the following procedure to align the
recorder
clock
to
the
KL10
Tektronix 475 oscilloscope or

probes

and

short

Power

Type

Set

ground

the

KL10

MR and

FX1

Attach
the

above
5.

Set

the

first
7.

leading

division

channel
the

the

10.

the

11,

negative

edge,

and

the

KL10

4E22F2

CLK

4D33pPl.

BOX

the

ground

CLKB

observe

the
two

the

reference

Set
1.3

line

two

Figure

the

G5349

that

edge

probe

line

R32

the

Figure

that

slot
of

the

1CD2

leading

point

R31

the

edge

50%

MBox

G-5348

phase

board

G5349

edge

the

50%

Figure

leading

Fiqure

scope

the

clock

the

(see

completes

phase

delay

(see

first

shown

leading
7).

clock

relationship

corresponds

probe

shown

crosses

the

graticule.

recorder

that

COMING

scope

Figure

channel

point

This

MTR

edge

delay

(see

recorder,

Adjust

trigger,

CHANGE

crosses the
(see Figure

Connect

and

recorder,

CLKA

recorder
point
clock

KL10,

with

Connect

Adjust

the

G5348

probe

clock.

COMING

V/cm

VIEW

CLKC

Figure

CRO

the

external

CHANGE

0.5

TRIGGER

for

centerline.

MBOX

shown

select

turn

one

the

Press
MTR

channel

scope

This
procedure
requires
a
equivalent (100 MHz).
Use identical

and

oscilloscope

trigger
from
backplane.

clock.

clips.

board

that

the

50%

point

slot

leading

1CD2
edge

of
50%

MBox

phase

for

the

S/X

<cables

and

replace

7).

the

deskewing

procedure

Bus

Recorder.

Removal

completion

the

Interconnecting
of

Cables

testing,

remove

all

terminations
in
the
original
1locations.
This
procedure
is
the
reverse of installation.
Recheck clocks and deskew if necessary.

CLK B
DESKEW

<——

CLK
A
(€628

DESKEW

—

E609

]

I
MR 6390

Figure

Oscilloscope

Connection

Points

S/X BUS
e

CLK A ADJ

CLK B ADJ

S AT
N_1

MODULE
#
Gb5349

MR-4331

Figure

MTR MBOX CLK

(CHANNEL 1)

Deskewing Adjustments

A CHANGE

CHANNEL 2

l_-l_ CLKA
I

CLKB

DIAGRAM OF CLOCK “A” AND “B" PHASES
MR 2255

Figure

Deskewing Waveforms

S/X BUS
-10~

OPERATION

Introduction

The
the

following

recorder

Controls and
1.

paragraph

console

describes

panel.

the

Refer

controls

and

to Figure 8.

indicators

Indicators

LOCKOUT
toggle.

switch In
the

The
OFF

LOCKOUT switch
1is
position,
the
S/X

a
2-position
Bus
Recorder

functions are controlled by the software and
the START
PULSE and STOP switches.
1In the ON position, the console
panel functions are enabled for manual intervention, and
the software is preempted.

STOP

ERROR

switch

The

STOP

ERROR

switch

2-position
toggle.
In
the OFF position,
Recorder continuously samples the S/X bus,

decimal

point

remains

lit.

will cause the recorder
decimal point goes out.

1In

the
and

the ON position,

stop

recording,

S/X
the

Bus
REC

any error

and

the

REC

STOP switch - The STOP switch is a 2-position toggle.
1In
the ON position, recording is terminated by clearing the
record flip-flops at the next START "A" or START "B" from
the S/X bus.
1In the OFF position, recording commences at
the next START "A"
or START "B"
from the
S/X bus,
or
START pulse

from

the

recorder.

START PULSE - The START PULSE is a pushbutton switch.
When the STOP switch is ON, depressing the START PULSE
switch only clears the record flip-flop.
When the STOP
switch is OFF, depressing the START PULSE switch clears
the recorder and begins recording on the next START "A"
or

START

"B".

NXT/LD and FUNC SELECT switches - The NXT/LD switch is a
pushbutton switch
that
is
functional only when the
recorder is not recording.
The function of this switch
is determined by FUNC SELECT.
When FUNC SELECT is set to
DEC,

pressing

the

NXT/LD

switch

decrements

the

RAM

ADDRESS
by one.
If
the
FUNC
SELECT is
set
to INC,
pressing the NXT/LD switch increments the RAM ADDRESS by
one,
When FUNC SELECT is set to LD MADR, pressing the
NXT/LD switch loads the memory address into bits 13-35 of
the DRR/MEMADR
If

the

FUNC

SELECT

set

RADR,

pressing

the NXT/LD

switch loads the RAM register with the address
by the REG SEL/RAM ADR thumbwheel switches.
REG
SEL/RAM
(right-hand)
control

the

ADR

thumbwheel

switches

The

RAM address
of LED D7.

and

the

diagnostic

low-order

thumbwheel
switch
1is
the
only
switch
to
LED display
(except for
lamp test).
Both

thumbwheels are used to select a
Address 40 is used for lamp test
the

selected

lamp

test

program

option

test

all

other LEDs

S/X

Bus

from 0-37.
Address 42
Recorder

(D1-D6 and

D8).

MEM ADR indicator - When lit, the MEM ADR decimal point
indicates
that
the DR
register
1is
1loaded with memory
address data.
If this decimal point is not 1lit, the DR
contains

normal

data.

SW1

MADR

NXT/LD

REG SEL/RAM ADR

INC

RADR

DEC

sS4

S7
OFF

STOP

PULSE
09

S6
OFF

START

S5
OFF

STOP

LOCK

2 AMP

4 AMP O 230 VAC

ouT

115 VAC

ERROR

17
S8

ON
:
'

FUNC

SELECT

cR/

WRITE

02 , 03

05 , 06

rec Aos

)

36g or

REG SEL

ERR T ReAD

08 | 09
1

crl

00
T

%, 06

PEC ADR
8

08 | 09

MEM ADR

';scn‘,\og';

l 3
T

14
T

15
T

29 | 30

ADR

)

ACK

32 , 33
ov

o I

| { 2 | 3 [PRF[AVe PAR SBUS{ par| YT R&IDVT Ack | pv

20 ; 21
T

Inc | pec

OFF

POWER

26 | 27

I 2 I

3 | 35 l A l

B l a I B_l

ACK SR

17 4 18

éREC

23 4 24

Ro | wa

ERROR

ADR

23 ; 24
1

26 | 27
1

29 , 30
T

32 | 33
1

»®

RAM DATA 02-11
ol

RO RO,

;18

D | WR

20 | 21
T

ADR

2 l 3 | 3|

23, 24
T

RAM ADR

26
T

168421

3
27

DR DATA 18-35
T

29 ( 30
T

2, 33
T

»
T

DRR=1,

MEM ADR=5,

REC

08 | 09

REG SEL

02 , 03
T

_WRITE

14 | 15

CONT

05 , 06
T

oRL

TYPE

DV SR

REC

20 | 21

on
| ERR | MT
onr | ERT|
mD

06y

02 , 03
T

sror|

ANY ERROR ®
18
st

[}

REG SEL

WRITE

TYPE

READ

DRR/

14 | 15

0z , 03
T

_WRITE

conT

aam

]
i

05 ; 06
T

conr

mem | Ao

MEM ADR

ADR | PAR

14-17

08 | 09
T

8TM

READ

18 4 15
T

17 4 18
T

20 | 21
T

PaR

23 | 24
T

26 4 27
Y

29 4 30
T

2, 33
|

%
T

REG SEL

ADR

36, 0?37

DR DATA 18-35

MEM ADR 18-35

CONT

MEM

TYPE

ADR

DR DATA 00-17

PAR

ERR

MR-4332

Figure

Console

Panel

Controls

and

Indicators

snd X/s

00
T

.
;

_'[ "['_.

S/X BUS
-12-

Descriptions

Control/Error

(CR/ERR)

Bits 00-04
(REC ADR)
- The S/X Bus Recorder is assigned a 5-bit
discrete address
(36 or
37 octal)
for device selection when the
SBus diag line is asserted.
These bits are returned as zeros on
the read portion of the SBus diag cycle.
(Write-only bits)
Bits

05-07

the

CR/ERR

line

(REG

SEL)

asserted.

Use

for

3-bit

writing

(Write

and

field

and

read

(zero

reading

octal)

when

the

select

SBus

diag

bits)

Bits

08-11
(CONT TYPE) - This is a hardwired controller type
(06
bit.
If a recorder is connected to the SBus or XBus, these
bits will be asserted for the read portion of the SBus diag cycle
to indicate recorder present.
The recorder's address (bits 00-04)

octal)

must

accompany

the

SBus

diagnostic

function

recorder's

controller

(Read-only

bits)

diag

zero

Bit 10
in the

(CLR) - If the
OFF position,
(Write—-only bit)

cycle

the

type,

issuing

recorder,

and

the

bit is a 1
clear and

which

CR/ERR

standard

will

SBus

read
read

the

bits,

and the console LOCKOUT switch is
initialize the
recorder's
logic.

Bit

11
(LD) - If the bit is a 1 and the LOCKOUT switch is in the
position, allow the register's writable bits (18-35) to write
and read all
register bits.
If the bit
is a 0 and
the LOCKOUT
switch is in the OFF position,
read all register bits.
When the
bit is a 1 or 0 and the LOCKOUT switch is in the ON position, no

OFF

function

Bit

performed.

- Not

Bit

13
switch

(STOP)
is set

flip-flop
signals

- When
to OFF,

set,

bits

asserted

set.

(Write

read

its

the

and

read

Bit

bits)

and

STP

read,

this

bit

flip-flop

the

and

cleared.

simultaneously,

read

and

the

MAN

STP

LOCKOUT
MAN STP

recording

CLR

bit

bus

STOP

and

CLR

the

flip-flop

remains

bit)

status.

the

bit

a 0 and the CLR bit is asserted,
Simultaneous assertion of the STP
STP on ERR flip-flop set.
(Write

bit)

(BUS

ERR EN) =~ When the bit is a 1 and the console LOCKOUT
is in the OFF position, set the BUS ERR EN flip-flop.
This
the recorder to assert SBUS ERR when an ERR is detected.

switch
allows
If

MAN

STP on ERR flip-flop.
and CLR bits leaves the

ERR

the

BUS

read

(STP ON ERR)
- If the bit is a 1 and the console LOCKOUT
is
in the OFF position,
set the STP on ERR flip-flop and

clear
on

status

inhibited.
the

Bit 14
switch

and

this
bit
is
a
1
and
the
console
the REC flip-flop is cleared,
the

its

asserted,

are

(Write

used.

bit

ERR

STOP,

read

bit)

and

the

flip-flop.

CLR

bits

stop

CLR

Simultaneous

leaves

the

BUS

bit

asserted,

assertion

ERR

the

flip-flop

set.

clear

BUS

the

ERR

EN,

(Write

and

Bit 16
(MT MD)
- When the
bit
is a 1
and
the
console
LOCKOUT
switch is in the OFF position, set the maintenance mode flip-flop
and

read its status.
The MT MD flip-flop provides data paths from
SBus data
lines to the selected
register or to the RAM when
loading data with the SBus diag line asserted.
If the bit is a 0

the

and

the CLR bit is asserted, clear the MT MD flop.
assertion of
the MT MD and CLR bits
leaves
the MT
set,
(Write and read bit)

Bit

flip-flop

set.

(REC)

When

(Read-only

the

bit

the

REC

(record)

bit)

Simultaneous
flip-flop

NOTE

Writable
must

bits
set

and

writable
bits
register (refer
Bit

(ST

the

bit

ACKNs

and

DVs

per

bits

Also

load

the

timeout

enable
and

the

20-25

18-31:

The

the

bit

asserted

18-31
of
to bits 11
is

into

ACK

and

subsequent

SBus

diagnostics

shift

for

load

the

ACK

and

shift

for

INT

ERR,

and

shifted

the

registers
per

flop

check

the

counters,

the
CR/ERR
and 16).

bits

required

28-31,

number

registers.

S/X BUS
13-

Bit

(ST

- When

the

ACKNs and DVs per bits

bit

20-25

into

load

the

required

number

the ACK and DV shift

registers.

conjunction with

00/01/02/03

Also load the DV timeout counters, check for an INT ST ERR, and
enable the ACK and DV shift registers to be shifted on the next
and subsequent SBus diagnostics per bits 28-31.
When ST B 1is
asserted, readable bits 18-35 are not guaranteed valid on the same
SBus

diagnostic

Bits

20-25

determine

the

number

asserted.

cycle.

(RD RQ and WR)

- RQ

of ACKNS and

data

valids

loaded when ST

Bits 26-27 - ADR 34 and ADR 35 in conjunction with RQ 00/01/02/03
are checked for an INT ST ERR when the ST A or ST B is asserted.
Bits 28-29 - ACK A and ACK B produces one shift of the ACK SR for
either ACK A or ACK B.
(Reference bit 18 - ST A and bit 19 - ST
B)
Bits 30-31 - DV A and DV B produces one shift of the DV SR for
either DV A or DV B,
(Reference bit 18 - ST A and bit 19 - ST B)
Bits

32-35

- Not

used.
NOTE

Readable
bits
18-35:
These
bits
are
read during the read part of the SBus
diagnostic cycle.
(Refer to bit 1l1l.)

Bits 18-21
valid shift

(DV SR)
register,

Bits 22-25
(ACK
shift register.

SR)

These

bits

These

Bit 26
(ADR PAR ERR)
detected even parity in a

reflect

bits

the

reflect

status

data

ACK

If
the bit
is a 1,
the
recorder
memory address asserted on the SBus.

has

is a 1,
and SBUS

states

the

Bit 27
(ST A/B ERR)
- When the bit
START "B", or START "A", or START "B"

the

SBUS START "A" and
DIAG, were detected

simultaneously.

Bit 28 (ADR PAR IN
line was asserted.

Bit 29

ERR)

(SBUS in ERR)

- When

the

bit

the

bit

the

SBUS

the SBUS

ADR

ERR

PAR

ERR

line was

asserted.
NOTE

Memory controllers

(MF20)

SBUS ERR for a nonfatal

will

stop

the

Bit 30 (PAR ERR) - When the bit is a
in a SBus data word during the cycle.
B,

or DV A

does

not

clock

the

RQ OX = ADR 34/35

- The SBus

ADR

34/35

asserted.

RMW

SBus

was

not

- More

for

read-modify-write

RD/WR RQ =

valid

SBus

cycle.

(DV/ACK

ERR)

before

an ACKN.

Bit

than

- No SBUS
-

the

Bit 33 (DV Timeout) - When the
Timeout
has been detected.
time

read—-access

Bit

(ACK

detected

ERR)

the

bit

word

was

requested

the

cycle.

bit
is

error

request associated with SBUS

RQ or WR

(ACKN to data valid)
-

a 1, an initial start
conditions occurred.

one

bit

1, even parity was detected
If MT MD is set, ACKN A or

DR.

Bit 31 (INT ST ERR) - If the bit is
was detected and one of the following

that generate

error condition

recorder.

RQ was asserted
a

data

valid

for a

occurred

is a 1, a missing data valid
produced when the memories'
is

exceeded.

ACK

and

ACK

were

simultaneously.

Bit 35 (DV ERR) - If the bit is a 1, data valid A and data valid B
were detected simultaneously, or a data valid was detected when RD
RQ was

hot

asserted.

S/X BUS
-14-

Data

Left

(DRL)

Bits 00~04
(REC ADR)
discrete address
(36

- The
or 37

S/X Bus Recorder is assigned a 5-bit
octal)
for device selection when the

SBus diag line is asserted.
the read portion of the SBus

These bits
diag cycle.

are returned as zeros
(Write-only bits)

Bits 05-07
(REG SEL) - Use a 3-bit field (02 octal) to select the
DRL register
for writing and reading when the SBus diag line is
asserted.
(Write and read bits)
Bits

08-11

(CONT

TYPE)

This

hardwired

controller

type

(06

octal) bit.
If a recorder is connected to the SBus or XBus, these
bits will be asserted for the read portion of the SBus diag cycle
to indicate recorder present.
The recorder's address (bits 00-04)
must
accompany
the
SBus
diag
cycle
issuing
a
standard
SBus
diagnostic
function
zero
to
the
recorder,
which will
read
the
recorder's controller type,
and the CR/ERR register's read bits.
(Read-only bits)
Bit

OFF

position,

and
its

read all
status.

(LD)

the

bit

allow

the

and

the

LOCKOUT

writable

Also set the
provides data

switch

bits

MT MD
paths

(18-35)

the

write

flip-flop and
from the SBus

read
data

lines

to a selected
register or RAM when
loading data with
the
diag line asserted.
If the bit is a 0 and the LOCKOUT switch
is in the OFF position, read all register bits.
If the bit is a 0
and
the
CLR
bit
is
asserted,
clear
the
MT
MD
flip-flop.
Simultaneous
assertion
of
the
MT MD flip-flop
and
the
CLR bit
leaves the MT MD flip-flop set.
When the bit is a 1 or a 0 and
SBus

the
LOCKOUT
switch
is
in
the
performed.
(Write and read bits)
Bit

adr;
when
when

(MEM

ADR)

the

bit

position,

bits

14-35

function

contain

DR bits 00~-11 and 13 should be disregarded.
This
the mem adr is read via the SBus diag or console
other
than a mem adr
is clocked
into
the DR,

mem

bit is set
and resets
(Read~only

bit)
Bits
Bit

13-5
15

- Not

(PAR

the

data

the

parity

used.

ERR)

the

bit

set,

(Read-only

bit)

DR.

even

parity

was

detected

DRL

will

the

check

NOTE

The terms LOAD and NOT LOAD refer to the
diagnostic and are used for diagnostic
testing only.
Bit

17 (PAR BIT) - If the bit is a 1 and LOAD,
set
flip~-flop and read its status.
If NOT LOAD,
read
the DR parity flip-flop.
(Write and read bit)

the
the

Bits

data)

18-35

(DATA)

LOAD,

DRL
(DR00-17)
and
read
contents of the DRL.

Data

Bits

00-04

discrete

SBus
the

read

line

portion

05-~07

(REG

18-35

(SBus

NOT

LOAD,

S/X

Bus

octal)

These

Recorder

the
the

is assigned a 5-bit
selection when the
returned as zeros on

for

device

bits

are

the

SBus

diag

cycle.

(Write-only

SEL)

This

3-bit

field

used

latches

(05

octal).

and

octal)
bits
to

the

bit.,

will

mem

(CONT
1If

indicate

adr

flag

TYPE)

recorder

must
accompany
the
diagnostic
function
recorder's

controller

(Read-only

bits)

the

(bit
This

recorder

asserted

the

DRR

When

the

octal)

adr select
(05 octal)
is asserted, mem adr latches bits 14-35
clocked into DR bits 14-35 on the write part of the SBus diag

08-11

contents

bits)
select

(01

cycle

the

into
read

mem
are

Bits

- The
or
37
asserted.

(36

bits

contents,

(DRR)

ADR)

address

diag

Bits

(REC

write

its

DR parity
status of

13)
is

set.

hardwired

controller

connected

the

SBus

the

read

portion

the

present.

The

recorder's

for
SBus
zero

type,

and

the

CR/ERR

(06

XBus,

these

diag

cycle

address

diag
cycle
1issuing
a
to
the
recorder,
which

type

SBus

(bits

00-04)

standard
SBus
will
read
the

read

bits.

S/X BUS
-15-

Bit
OFF

11 (LD) position,

and
its

read all
status.

If the bit is a 1 and the LOCKOUT switch is in the
allow the register's writable bits (18-35) to write

Also

set

the

flip-flop

and

read

provides data paths from the SBus data
lines to a selected
register or RAM when
loading data with
the
SBus diag line asserted.
If the bit is a 0 and the LOCKOUT switch
is in the OFF position, read all register bits.
1If the bit is a 0
and
the
CLR
bit
is
asserted,
clear
the
MT
MD
flip-flop.
Simultaneous
assertion
of
the
MT MD flip-flop
and
the
CLR bit
leaves

the

flip-flop

set.

When

the
LOCKOUT
switch
is
in
the
performed.
(Write and read bits)
Bit

(MEM

ADR)

adr;

bits

when

the

mem

when

other

00-11
adr

than

the

and

bit

read

mem

should

via

SBus

adr

the

bit

position,

bits

14-35

clocked

into

and

function

mem

This

bit

set

console

and

resets

disregarded.
diag

the

contain

DR,

(Read=-only

bit)
Bit

(ADR

asserted

Bits

14-17

reflect

PAR)

SBus/XBus.

(MEM

ADR)

mem

Bits 18~35
data)
into

adr.

read

and

mem

adr

select,

mem

adr

latches

Data

checked

"A",

the

read

START

other

"B",

adr

the

address

(bit

13)

The

RAM

DRR

contents

each

captured.

and

loaded

data

During

(bits

bit

bits

14-17

the
SBus

for

each

NOT

LOAD

latches.

The

certain

bits

that

This

data

consists

read

and

write

and

18-27

RAM

adr

diag.

transaction
The

bits

mem

data

the

cycle,

RAM

data

are

memory,
the

START

four

physical

either

captured

START

or START "B" must be asserted.
RAM data should never be
without START "A" or START "B" active.
The bit definitions
follows.
Bit

was

bits 18-35 (SBus
If NOT LOAD and

18-35).

the

RAM.

address

via

SBus

word

parity

bits)

5 alifiers

(0,1,2,3),

Figure

the

(37,)

requests

data

address.
shown

mem

contents

cannot

and

stored

(DATA) - If LOAD and DRR select, write
DRR
(DR18-35) and read its contents.

select,

are

bit

(Read-only

DRR

RAM

the

as
"A"

stored
are as

"A"

Bit
Bit
Bit

19
20
21

- START "B"
-~ Read Request
- Write Request

Bit

22
23
24

- Request
- Request
- Request

Bit
Bit
Bit

Bit
Bit

26
27

3
Bit
Bit

Request
- Address
- Address

1
2
34
35

S/X Bus Recorder Operation and Dumping
S/X
to

Bus
the

placed
order

Recorder
memories

in
to

ll-based

Operation

and

S/X

bus

OFF

position.

check

out

the

diagnostic

After

the

recorder,

the

functionality

that

can

deskewing

the

LOCKOUT

Diagnostic
read

DGSBA

the

and

recorder.

write

clock

switch

should

signals

should

run

DGSBA

registers

in
an

contained

within the recorder.
Af ter successful completion of DGSBA,
the
"B" command string should be run with the LOCKOUT switch in the ON
position.
All
diagnostics should be
run without errors,
except
for the following.
Test

No.

DHKBB

DHKBA

Test

No.

DGKBA
DGKBB

Test No.

Test

No.,

19,

Subtest

31064

22554

S/X BUS
-16-

If no
ready

errors are
for system

found {(except for those noted)
the recorder
operation.
To reset the recorder, proceed

is
as

follows.

Place

Place the LOCKOUT in ON position.

the STOP switch

Enable
ON

the

recorder

ERROR toggle

Press

The

recorder

ACK

and

the

will

light

by placing

the

STOP

the ON position.

now

initialized.

ERROR decimal

the SBUS.
received by

stop on error
to

PULSE button.

DV shift

begin

switch

START

ANY

in OFF position.

point

counters

the

are

START

All

should

errors
now

initialized

"A"

START

are cleared

be OFF.

and

The

recording

"B"

signal

Once the START "A" or START "B" signal is
the recorder, the RECORD decimal point will

indicate

that

the

recorder

1is

storing

SBUS

activity.

Steps

and

an error,

clear

and

as described

arm

the

recorder.

the

the CR/ERR register

recorder

bits 26-35

detects

(refer

the Control/Error Register
(CR/ERR)
section),
and
the
STOP
ON
ERROR switch
is ON,
recording will
cease.
Several methods are
available in order to dump the contents of the recorder:
1.

Manual

(via

switches

Through

the

diagnostic DGSBA.

Through

CCL

with
4,

have

This

the

Version

14.

file.

command

SBus

KLDCP

(another

will

available

DIAGs.

Recorder

command

for

console).

RSX-20F).

Through

Dumping

file

the

The

via

KLDCP

new

command

TAKE

command,

RSX20F

has

been

which

For

added

RSX20F

read

you

Version

and

the S/X Bus

for

.CMD files

available

will

must

14,

execute

recorder

are

SB0O.CMD

;For SBus

SB1.CMD

you

are

used.

;For SBus

using

The

KLDCP,

.CCL

SBO0.CCL

files

;SBus

SB1.CCL

recorder addressed as #36

recorder

the

available

recorder

;SBus

addressed

command

recorder

are

addressed

Dumping

the Recorder via DGSBA - To

perform

the
To

Ensure

KLDCP

type

that

#37

.CCL

processing

should

as #36

#37

dump

the

recorder

via DGSBA,

steps.

following

for

DGSBA.

the

recorder's

LOCKOUT

switch

the

prompt,

type:

the

OFF

position.

When KLDCP has

returned

with

SED/D

When
the
diagnostic
starts,
you
will
be
required
to
select which SBus recorder you want.
The diagnostic will
print

out

SBUS/XBUS

the

following

information.

RECORDER DIAGNOSTIC

CONSOLE

PACKAGE

BEGINS

SBUS/XBUS RECORDER AVAILABLE:
RECORDER #0
ADDRESS 36

SELECT

SBUS/XBUS

5BUS/XBUS

REC
TYPE

RECORDER

REC

HLP<KCR>

ADR

(0,1

SELECTED:

YOU WANT

INSTRUCTION

FOR BOTH)

S/X BUS
-17-

Once

you

reach

SBA>,

will

give

you

the

command

ALL).

This

readout

you

give

all

manually

and

two

switches.

the

RAL

(READ

registers.

SBA>RAL
CR

REG

000610

356140

DRL

REG

004602

351400

DRR

REG

002620

010316

MEM

ADR

REG

RAM

REG

00660

RAM

REG

00660

012660

137144

336001
276000

RAM

REG

00660

336037

RAM

REG

00660

276036

RAM

REG

00660

276035

REG

00660

476034

RAM
RAM

REG

00660

276033

RAM

REG

00660

476032

RAM

REG

00660

276031

RAM

REG

00660

476030

RAM

REG

00660

276027

RAM

REG

00660

476026

RAM

REG

00660

276025

RAM

REG

00660

476024

RAM

REG

00660

276023

RAM

REG

00660

476022

RAM

REG

00660

276021

RAM

REG

00660

476020

RAM

REG

00660

276017

REG

00660

RAM

476016

RAM

REG

00660

276015

RAM

REG

00660

476014

RAM

REG

00660

276013

RAM

REG

00660

476012

RAM

REG

00660

276011

RAM

REG

00660

476010

RAM

REG

00660

276007

RAM

REG

00660

476006

RAM

REG

00660

276005

RAM

REG

00660

476004

RAM

REG

00660

276003

RAM

REG

00660

476002

SBADEXT
CMD:

Manual
Bus

Dumping

recorder,

Adjust
a.

the

S/X

proceed

the

Bus Recorder
follows.

following

Put

the

LOCKOUT

Put

the

STOP

Press

the

button
switch

switch

PLS

the

button,

reset.

dump

the

S/X

that

REC

position.

ON position.
which

will

ensure

CAUTION

Depressing

Put

switch

clear

the

will

00
gate

will

the

gate

CR/ERR
18-35,

Put

gate

out

Turn

the

rotary

REG

the
the

into

SEL/RAMADR

of
the

switch.

information,

the

LEDs.

Data

Reg

switch.

Right

thumbwheel

the

Data

MEMADR

This

which

Record

thumbwheel

the

SEL/RAMADR

contents

switch

thumbwheel

contents
REG

the

with
the
position
will

SEL/RAMADR

the

will

REG

button

OFF

bits

the

out

ST/PLS

in
the
recorder.

out

contained
in
information.
Put

the

STOP

Reg

This

(DRR).

switch.

Left

this

This

(DRL).

position.

CAUTION

Before

performing

the

step

sure

you

will

be overwritten with MEMADR.

Press

the

have

NXT/LD

light,

indicating

DRR.

the

copied

switch.

that

down

The

memory

the

DRR,

MEMADR

make
as

decimal

address

data

point

now

should

loaded

S/X BUS
~18-

Put a 05 in the REG SEL/RAMADR thumbwheel

will gate out the contents of

the MEMADR.

Put a 03 in the REG SEL/RAMADR thumbwheel switch.

Turn the function select rotary
and press the ST/PLS switch.
(were)

the SBus

for

information

cycle

switch

This

switch.

to DEC

position

now display
The LEDs
in which the error(s) was

detected.

Operation with MOS Memory and TGHA - In order for the S/X Bus
Recorder to run without detecting single-bit recoverable errors,
TGHA must

run.

not be

Under TOPS-10,

the OPR.ATO file must be edited so that TGHA will

before logging,

defining,

not

This

run,

Example:

done

can

and

:SLOG

!
!

TGHA=
:DEF
TGHA
R
TGHA-

In the case of TOPS-20,

inserting

running TGHA.

the

rename

file

exclamation

point

TGHA.EX1l

rather

<SYSTEM> TGHA.EXE,

than

NOTE

are done using the S/X Bus
remove the exclamation point
from OPR.ATO for TOPS-10 or rename the
of
(instead
TGHA.EXE
<SYSTEM>
file

Once you
Recorder,

<SYSTEM> TGHA.EX1l).

Error

Interpretation

The S/X Bus Recorder has the capability of detecting write parity
This is possible because every time
errors on the other S/X Bus.
You
a data valid is received in the recorder, parity is checked.
occurred on the other bus by
error
the
that
determine
can
If the CR/ERR register contains a
examining the CR/ERR register.
046040 in the right half, which indicates DV #3, ACK #2, ACK #3,
and parity error, a parity error occurred on the write portion of

read-pause-write on the other S/X bus.

The following are five examples of errors that can occur
S/X Bus, and how to interpret them using the recorder.

the

Internal Memory Failures - The following five examples of failures

are

memory failures and

internal

XBus errors.

Data Parity Error #1 - This error is an example of a data parity
error

#3,

word

with

the

transfer

starting

word

zeros

boundary.

The following program was put in location 100 and 101 of the
internal

memory:

100/ MOVE 10,

101/ JRST

1000

101

Paging was set up so that page one (right half of location 600 of
Exec Base register) was pointing at physical page 1000. The EBR

was at page zero.

The program was run one time

in order to move

Next, cache look and load was turned off
the program to cache.
(by executing a CONO PAG,20000). Bad parity was then put into loc
1003 by executing the following instructions.

CONO PI1,200000

MOVEM 1003

(700600 200000)

(202000 1003)

;write even parity

;store away ACO in location 1,,001003

;with bad parity

CONO PI,0 700600 0 ;turn off write even parity

cache 1look and load was then enabled with a CONO PAG,620000
Next, the physical page 1001 was invalidated in
(701200 620000).
cache to allow a 4-word memory request (the program at loc 100 and
101 was in cache and was valid).

S/X BUS
-19-

When

the

machine was started at location 100 it executed a MOVE to
1000.
Since cache was enabled and those words were
cache at the time, a 4-word request was generated on the
SBus starting at location 1000.
1In analyzing the contents of the
CR/ERR
register
note
that
all
the
data
valid
and
ACK
shift

ACO

location

not

registers
valid and

are
ACK

that

the

shift

word

all
happened
memory

cleared.
The recorder disables the clearing of
shift registers when an error is detected.
The

address

requests

registers

#3.

were

sent

cleared
out
last,
one
physical location of the

The

program

console

This

was

explain

and

KLDCP

ADR),

finding

out

word

the

data
fact

error

the

amount

data

valid

was

failing

word.

The

1,,001003.

100.

that

contained

which

the

location

execution

data

determining

determine

level.

indicates

the

(MEM

failing

the

and

can

started

printout

cleared

looking

that

are

the

The

CCL

indicates

following

file

called

comment

data.

the

SB0O.CCL

inserted

KL10
>.I

HALTED

/000100

VMA/000101

SBO

;S/X

BUS

;THIS

RECORDER

WILL

WORK

DUMPER

RECORDER

ADDRESSED

’

j¥**x%*%

THE

LOCKOUT

SWITCH

MUST

THE

OFF

POSITION**#

’

;FIRST

STOP

THE

DM10:740020

EX700500
;NEXT

RECORDER

GET

CR/ERR

EM11
000011/000630

000040

*Bit
30
*left in

set
data

(parity
error).
Nothing
was
valid and ACK shift registers.

’

;NOW GET

DATA

DM10:744000
EX700500

REG

LEFT

(DRL)

EM11
000011/004603

275500

;NOW

REG

GET

DATA
DM10:742000 O

EX700500

*Bit

RIGHT

indicates

parity

error.

(DRR)

EM11

000011/002600
;NOW GET

DM10:752000

EX700500

000400

MEMORY

ADDRESS

(MEMADR)

*Indicates

address

EM11
000011/012641
;sNOW

GET

ALL

DM10:746001

001000
THE

10
10,EM11

000011/006600

*This
336007

10,EM11

000011/006600 336006
10,EM11
000011/006600 243405
10,EM11

000011/006600

336004

EX700500

10,EM11
000011/006600 503403

EX700500

10,EM11

000011/006600

243402

EX700500

10,EM11
000011/006600 503401

EX700500

10,EM11

000011/006600 536000
EX700500 10,EM11
000011/006600 520037

EX700500

10,EM11
000011/006600 520036

EX700500

10,EM11

000011/006600
EX700500

520035
10,EM11

000011/006600

EX700500

1,,001000

*to

*This

command
get

1into

the

RAM

1is

executed

twice

the

correct

that

was

RAM
valid
at

*error.
It
shows
that
it was
*START "B",
was a READ REQUEST,
*4-word request.

EX700500
EX700500

being

EX700500
EX700500

EX700500

RAMS

520034
10,EM11

order

address.,

time

started

and

was

S/X BUS
-20-

000011/006600 520033
EX700500 10,EM11
000011/006600 520032
EX700500 10,EM11
000011/006600 520031
EX700500 10,EM11
000011/006600 520030
EX700500

10,EM11
000011/006600 520027
EX700500 10,EM11
000011/006600 520026
EX700500 10,EM11
000011/006600 520025
EX700500 10,EM11
000011/006600 520024
EX700500 10,EM11

000011/006600 260023
EX700500 10,EM11
000011/006600 320022
EX700500

10,EM11

000011/006600 336021
EX700500 10,EMI11
000011/006600 536020
EX700500 10,EM11
000011/006600 443417
EX700500

10,EM11

000011/006600
EX700500

336016

10,EM11

000011/006600

310415

EX700500 10,EM11
000011/006600 320014
EX700500

10,EM11

000011/006600

450413
10,EM11
000011/006600 305012
EX700500 10,EM11
000011/006600 510411
EX700500 10,EM11
000011/006600 320010
EX700500

;NOW

RESET

THE

DM10:740210

EX700500

000011/000610

Data
data

RECORDER

AND

SET

STOP

ERROR

10,EM11

Parity
parity

000000

Error #2 - This error is an example of a combination
error and data valid timeout (starting on word zero

boundary)
.

this

example,

Parity Error

the

same

program

was

initialized

#1 except that the parity error was put

Data

into physical

location
1,,001002,
or
paged
location
1002.
In
analyzing
the
contents of the CR/ERR register, two errors can be found:
1) a
parity error, and 2) a data valid timeout.
Once the data valid

timers

are

detected.

started

they

will

case,

the

this

continue
real

even

error

after

the

parity

error

error.

Since the one data valid is still left, the recorder will inhibit
clearing of any ACK or DV bits on detection of an error.
The

error occurred prior to receiving the data wvalid #3. If you look
at the RAM at the time of the error, it had a 536000, which is a
4-word
request
beginning
on
word
zero
boundary.
Since
the
recorder stopped on error, the data valid shift register has DV #3
left; it was a 4-word request, the error happened on word #2. The
address contained in the MEM ADR register is 1,,001000.
This is
the initial address requested.
By knowing the error happened on
word
The

two,

the

printout

parity

error

occurred

location

1,,001002.

follows.

CMD:
>.

>.I

SBO

;S/X BUS RECORDER DUMPER
; THIS WILL WORK IF RECORDER
i

j**%*%%

THE

LOCKOUT

SWITCH

;FIRST

STOP

DM10:740020
EX700500

;NEXT
EM11

GET

THE

RECORDER

190

CR/ERR

ADDRESSED

MUST

THE

36
OFF

POSITION***¥

S/X BUS
-21-

0000117000630

040044

*Bit

data

valid

timeout

*Bit

data

valid

= parity

error,
is

not

shifted

out

;NOW

GET

DATA

DM10:744000

EX700500

REG

LEFT

(DRL)

EM11

000011/004602

777777

*Bit

16
17

*Bit

indicates

parity

error

indicates

parity

bit

;NOW

GET

DATA

DM10:742000
EX700500

REG

RIGHT

(DRR)

EM11

000011/002600
;NOW

GET

777777

MEMORY

DM10:752000
EX700500

ADDRESS

(MEMADR)

EM11
000011/012641
;NOW

GET

ALL

DM10:746001

001000
THE

*Indicates

address

being

1,,001000

RAMS

EX700500

10,EM11

000011/006600

536000

*This
is
*error.

the RAM
that was valid
It
shows
that
it
was
"B",
was
a
READ
REQUEST

*START
*4-word

at
time
started

and

request with address bit 34 and
*0.
(This 4-word request begins on even
*word boundary, i.e., word zero.)

EX700500

of
on

was

=
quad

10,EM11
000011/006600 520037
i
7

Data

Parity

data

than

Error

parity

word

This

error

zero

and

error
a

data

example

valid

timeout

In this example, the starting location
1,,001001.
The contents of
the CR/ERR
data

Data

Parity

the

4-word

beginning

request,

but

the combination
(starting in other

boundary).

word

one

Error

#2.
request was

the

4-word

for the 4-word request was
register
contain
the same

this

not

example,
however,
the
word zero of the 4-word

request.

Determine

what

was

word

one

the original word requested and how many requests were asked for.
After you have established this,
see what
is left
in data
valid
and ACK shift
registers
in the CR/ERR register.
In this example,
data valid #3 is left.
Again, as in example #2,
it is the cause
of
the DVT
(data valid
timeout).
The parity error
is
the
real
error

word

4-word

REMEMBER:

#2.

Since

fetch,

The

the

data

valid

type

registers

and

that

the

beginning

address

SBus

address

and

27.

The

printout

bits

the

quad

address
and

the
of

and

ACK

data

the
35

word

that

fetch

failed

shift

(RAM

contained

them

ADR

1,,001003.

registers

contained

transfer

are

started

was

are

bits

RAM

modulo

and

follows.

SBO

;S/X

BUS

;THIS

RECORDER

WILL

WORK

DUMPER

RECORDER

ADDRESSED

;

j**%%**

THE

SWITCH

MUST

THE

OFF

POSITIONX**

LOCKOUT

;FIRST

STOP

DM10:740020
EX700500
;sNEXT

GET

THE

RECORDER

10
CR/ERR

EM11

000011/000630

040044

*Bit

*Bit
*Bit

data

one

= parity

error

valid timeout
valid not

data

shifted

out

35).

bits

CMD:
>.1

four

relative
34

S/X BUS
-22-

’

EX700500

(DRL)

LEFT

;NOW GET DATA REG

DM10:744000

EM11

0000117004603 000000

*Bit 16

’

DM10:742000
EX700500 10

indicates parity error

(DRR)

;NOW GET DATA REG RIGHT
O

EM11

000001

0000117002600
’

;NOW GET MEMORY ADDRESS REGISTER {MEMADR)

DM10:752000
EX700500 O

EM11

*Indicates address as being 1,,001001

000011/012641 001001
[

RAMS

;sNOW GET ALL THE
DM10:746001 O
EX700500 10
EX700500 10,EM11

0000117006600 536400 *This

the RAM that was valid

*error.
*START

*4-word

"B",

that

shows

was

request

READ

with

*and address bit 35

was

REQUEST,

address

at time of
started

and was
bit 34 =

= 1.

10,EM11

EX700500

000011/006600

520037

EX700500 10,EM11
000011/000610 000000
.

]

Data Parity Error #4 - This error is similar to Data Parity Error

except

#2,

that

the

that

word

was

failed

=zero

the

transfer,

In this example, the parity error was put in location 1,,001000.
This would
The instruction in location 100 was a MOVE 10,1000.
At the CR/ERR
create a 4-word request (with cache enabled).

register, notice that three data valids were not shifted out, and
that the last error occurred on the first word of the transfer.

The address in the MEM ADR register is 1,,001000. Since it was the
first word transferred that got the error, address 1,,001000 is
the

bad

one.

is as

The printout

follows.

>.1I

SBO

;S/X BUS

RECORDER DUMPER

THE LOCKOUT SWITCH MUST BE IN THE OFF POSITION***

;THIS WILL WORK IF THE RECORDER IS ADDRESSED AS 36

;*%%k*%x
’

; FIRST STOP

THE

DM10:740020
EX700500 10

RECORDER

;:NEXT GET CR/ERR REGISTER

EM11

000011/000630 340044

*Data

and

still

left

EM11

000011/004602

777777

’

;NOW GET DATA REG RIGHT

DM10:742000
EX700500 10

(DRL)

;NOW GET DATA REG LEFT

DM10:744000
EX700500 10

valid

*arror and data valid timeout.

(DRR)

EM11

000011/002600

777777

;NOW GET MEMORY ADDRESS REGISTER (MEM ADR)

DM10:752000
EX700500 10
EM11

000011/012641 001000

*Initial address latched = 1,,001000

parity

S/X BUS
-23-

;NOW

GET

ALL

DM10:746001
EX700500 10
EX700500

THE

RAMS

10,EM11

000011/006600
EX700500

536000

000011/006600
EX700500

520037

10,EM11

000011/006600
EX700500

520036

10,EM11

Read-Pause-Write
(RPW)

*START
"A",
read
request,
4-word
request
*(RQ0,1,2,3), address 34 = 0, address 35 = 0

10,EM11

*The

rest

*this

example

Failure

operations,

(Write

1l-word

the

RAMs

since

Portion)

request

are

they
-~

1is

not

are

displayed

not

needed.

Read-Pause-Write

always

generated.

receiving a RPW operation, the recorder will load the ACK/DV shift
register
with
two ACKs
and
two
data
valids.
This
is
done
to
identify which portion of the RPW cycle had the problem. Since the
memory will respond with one data valid on the read portion of the
cycle, this will clear one of the data valids that was loaded in
the ACK/DV shift register. When the CPU sends the data out on the
write portion, the CPU will send data valid to the memory, which
will also clear the other data valid contained in the ACK/DV shift
register.
Therefore,
1if the ACK/DV shift
register
data valid, the error happened on the READ portion.

contained
If there

data

portion.

the

valids

left,

following

enabling
portion

write
of

the

error

example

even parity.
cycle.

the

occurred
AOS

the

write

instruction

This

latched

was

executed

error

one
are

after

the

write

one

ACK

>.1

SBO

;SB0.CCL -- CCL FILE
; LSGMEG 9-NOV-79
; THIS

WILL

;*¥*%*%k%

THE

;FIRST

WORK

LOCKOUT

STOP

DM10;740020
;NEXT

GET

THE

FOR

THE

DUMPING

RECORDER

SWITCH

MUST

RECORDER
IS

ADDRESSED

THE

OFF

parity

POSITION***

RECORDER

0,EX700500

CR/ERR

EM11

000011/000630

;NOW

GET

DATA

DM10:744000

002040

REG

;NOW

REG

DATA

;NOW

GET

;NOW

GET

EX700500

error

and

shifted.

normal

case

RPW.

the

time

(DRL)

10,EM11

RIGHT

(DRR)

10,EM11

ADDRESS

0,EX700500

ALL

000001

MEMORY

000011/012660

DM10:746001

ACK

0,EX700500

000011/002620
DM10:752000

*This
LEFT

000000

GET

indicates

*left

0,EX700500

000011/004603
DM10:742000

*This

(MEM

ADR)

10,EM11

000100
THE

RAMS

0,EX700500

10,EM11

000011/006600

560000

*This

the

RAM

failure.

*It indicates the cycle started on
*START "A", had RD and WR asserted,
*request

Since there
portion.

were

data

and

zero.

valids

left,

this

happened

the

write

S/X BUS
-24-

Read-Pause-Write

Failure

(Read

Portion)

instruction was executed again.
Since
written bad parity into core, that same
read

portion

the

RPW cycle

this

example

the

AOS

THE

OFF

the previous example had
location now failed on the

follows.

>‘

>.1

SBO

;SB0.CCL -- CCL FILE
; LSGMEG 9-NOV-79
;THIS WILL WORK IF

SWITCH

;

**%**
THE
LOCKOUT
POSITION ***
;FIRST

STOP

THE

FOR DUMPING

RECORDER

RECORDER #

ADDRESSED
THE

0
36

RECORDER

MUST

1IN

RECORDER

DM10;740020 0,EX700500 10
;NEXT GET THE CR/ERR REGISTER
EM11

000011/000630

042040

*Bit 21
*Bit

indicates data valid #3
indicates

ACK

1left

left.

(normal

RPW)
.

*Bit

indicates

parity

error.

;NOW GET THE DATA REG LEFT (DRL)
DM10:744000 0,EX700500 10,EM11
000000

000011/004603

;NOW GET THE DATA REG RIGHT

DM10:742000

0,EX700500

000011/002620

(DRR)

10,EM11

000001

;NOW GET THE MEMORY ADDRESS REGISTER
DM10:752000 0,EX700500 10,EM11
000011/012660 000100

(MEM ADR)

’

;NOW GET ALL THE RAMS
DM10:746001 0,EX700500
EX700500 10,EM11

000011/006600

560000

There is still
that the error
DMA Errors -

*This

indicates the cycle started with a

*read

and

*START

"B",

and

write

one word

request

with

asserted.

This means
valid left to be shifted out.
the first half of the cycle (read).

one data

latched on

(This section will

be supplied at a

later date.)

NOTE

DMA errors involving an incomplete cycle
may point to an incorrect address.
Read
or
write
errors
point
to
the
correct
address.

Loading and Running Diagnostics

Program Abstract - DGSBA is a diagnostic for the S/X Bus Recorder
the KL10 memory system.
for
diagnostic
a
not
should be used to verify that the recorder is

is
It
only.
However, DGSBA
properly

installed.

DGSBA is only a functional diagnostic.
It was not designed to do
The error messages indicate the
any gate- or board-level callout.
symptoms of an error as a result of what type of operation occurs.
Requirements

and DGKBA should be run
DGKAB,
Preliminary Software - DGKAA,
first.
Next, the memory should be configured; then DGSBA should
be

run

run.,

anyway

memory

the

memory

because

could

may

not

the

configured,

recorder

that

DGSBA

should

polluting

the

bus.

Operating

Procedure

Loading Procedure - DGSBA is supplied as an ".All" file and can be
loaded from DECtape, flexible diskette, or a front-end RP04 or
RP06 pack by selecting the device (see KLDCP operating procedures,
EK-OKL10-MG)

and

typing:

"P DGSBA.All".

Operation Modes and Switches -~ If DGSBA is started with all
switches 0, and no / switches, it will run all tests that do not
require operator intervention.
Any and all recorders will be
tested.

S/X BUS
-25-

the

memory

the

memory

skipped,
no

and

memory

SED/H

will

The

the

last
the

that

switch

will

type

out

CONTROL/ERROR

LOAD

DATA

LEFT

LDR

LOAD

DATA

RIGHT

LRM

LOAD

RANDOM-ACCESS

MEMORY

RCE

READ

CONTROL/ERROR

SBUS

READ

DATA

LEFT

READ

DATA

RIGHT

RRM

READ

RANDOM-ACCESS

MEMORY

READ

ALL

AND

REGISTERS

IRM

INCREMENT

RAM

ADDRESS

DRM

DECREMENT

RAM

ADDRESS

EXT

BACK

HLP

HELP

SWI

CURRENT

IDT

IDENTIFY

CFG

CHANGE

HLT

HALT

PROGRAM

LPT

LAMP

TEST

not

will

the

STATE

put

the

RECORDER

into

diagnostic

examine

the

operator

which

tested.

This

and

debug

mode.
modify the

recorder.
of

pass

completion

the

switch

even

OPRSEL

Switches

100000

;Abort

RSTART

40000

;Restart

Function
at

program
test

TOTALS

20000

;Print

NOPNT

10000

;Inhibit

PNTLPT

4000

;Print

2000

;Ring

LOOPER

1000

;Loop

;Halt

on error
all errors

test
all

totals
printout

printer

TTY

bell

error

line

400

NUMBER

SBUS/XBUS

recorders

ABORT

200

;Print

RELIAB

100

;Reliability

TXTINH

;Test

SWITCH

RECORDER

DGSBA

ask

are

select

Switch

run

mode

;Inhibit

INHCSH

OPRSEL

;Operator

CHAIN

iChain

cache
selection

control

(except

error

inhibit
;Inhibit paging
;Modify device code

MEMORY

up.

Control

INHPAG

RANDOM-ACCESS

operator

selected

will

on-line
to

printout

OPERATION

Name

MODDVC

The

MESSAGE

SBUS/XBUS'

allows
in

switch

are

test.

due

KLDCP

SELECTION

switch

mode

skipped

RDL

be run.
will
be

been

DIAG

RDR

that

ERSTOP

help

The

PALERS

the

LOAD

The

of tests will
set of
tests

has

follows.

LDL

operator

DING

set
last

test

printed.

test

registers

Test

stating

SBD

This

SED/S

configured,
the
not configured,

message

LCE

RAL

SED/D

switch

forced)

recorders
forces
switch

the
is

ARM-10LS

Table

Contents

INS T AL LA TION . ¢
e eeevencasosecacsososaccasnsecsocsonssssconcsosessl
Off-Line OpPeratioN..eeeseceeeeeeeeeseeeanesecacossossncscossonssnsl
Power

CONNECEION. ettt eeeeseeeneesecaeancesosososencsnasssceseald

Initial
General

PoWer—0n

ProCedUIE..ceeeseceeeseeseaccasseascosscecenedd

Component

INformation..eeeeceecececeeceescsoccccscscsnnnese?
ConfiguratioN.eeeeesesesescecesecaaoesescoonossssacesall

Equipment

Assign Unit Starting AdAreSS...ieeeeeeeecesescececssscanssnsceseall
Assign Logical Sectors to PhysSical SeCtOrS..eeeeeesceseceseseall
Establish Interleave Level.ieeieeeeeeceeeosecoacsosasesscasnnsall
Enable Memory Modules and Set Memory Board Select AddresS.....12
Set

Memory

Timing

Set

ECC

SWitcCheS..eeeiieeeeseossoeeeeoanseasssscseasasansesll
AdJUSEtMENtS . ceeeeererscccoseceocesoceneasesanncsesasld

Checks

and

PWBA
and

Control

Switch

SettingS...eeeeeeeesesesal3

OPERATION..... e e e e e e e csssensssecsessneveues I
N )

General

Controls
EPO

INformMatioN..eeeeeeeeeceeseceeeeeenososossssascccescessnsnsalb

and INAIiCAtOrSeeeeeeceeeeocoseescasosssssossoecnncsssssdlB
Panel.cieeeeeeesscseseseceoosssooncsascssssscscecsscsocsscsssssseedlb

Blower

CoNtrol
MemOry

Memory

ECC

ASSemMbDly..eeeeeeceessesceseoencoecesenessssscnennsenss

PAnNel..ieeeeeceseeoeecseeosoooosssssescssesoesessssansdald
PWBA..ueetioteeeeneeseoessososcsssessssscsoscscenssocneesld

Timing

and Control PWBA....eeeeeeeoesoenscoscssoscnsceselb
i ieeeoeeosossaseeoscecsososncscasesssososnssasncsssscesedlb

PIWBA .

POWETr—0N

ProOCEAUI

On-Line/Off-Line
POWET—Off
MEMORY

. seeeessoseesscssncscecocosososssssssncscseesdalb

OperatioN..eceeeceeececeeceeseesesscscnnascanealb

ProOCEAUI C.iuieeeeeecesceosoncoscacssssscesssscssscsssecedlb

CHIP

INSTALLATION

FAULT

ISOLATION. . .ceeessscscsccccccsccccceosssaocssoeslB

REFERENCE

INFORMATION. .veeeeosccsccoecaocnescoccsnessll

ARM-10LS

INSTALLATION

Off-Line Operation
To
energize
and
check

out

the

ARM-10LS,

procedures.

perform

the

following

Power
Connection
The
power
connection
assembly.
Receptacles
located
at
the
rear

1is
made
at
the
EPO
of
this
assembly are
All
receptacles
are
reached
via
the
following paragraphs describe the power

illustrated
in
Figure
1.
accessible side panel. The
connection procedures.

NOTE

Refer

complete

the

OPERATION

description

indicators.
Before
are

power

applied

the

section
all

memory,

for

controls

ensure

and

that

all

secured.

CAUTION
Applying
incorrect
power
will
damage
the
equipment.
Use
3-phase,
60 Hz,
or 220/240 V,

Before
the

plugging

power

voltage

for

the

levels

verified,
power

plug

standard

power

outlet

cable
with

order

units.

into

the

and

proper

receptacle

the

male

the

connectors

severely
208
vV,
l-phase,

site

power

outlet,

check

voltmeter

verify

wiring.

Once

site

power

cable

into

the

cabinet

power

correct

outlet.

POWER SUPPLY

NOT

-5.7 VDC (PS2)
POWER SUPPLY

USED

CONNECTOR

POWER CONTROL

SYSTEM

DIGITAL

INTERFACE

CONNECTORS

+5 VDC

CONNECTOR

{PS4)

+5 VDC (PS4)

—

+12VDC

AND +12 VDC (PS5)

BLOWER

{PS5)

POWER SUPPLY

CONNECTOR

z=====

J14

E==N

J1I3

J12

500
*

509,

]

+56VDC

-57VDC

-5.2VDC

(PS1)

(PS2)

(PS3)

—

AC POWER CABLE

USED

)

TO SITE QUTLET

+5 VDC (PS1)

POWER SUPPLY

AND -5.2 VDC (PS3)

POWER CONTROL

POWER SUPPLY

CONNECTORS

CONNECTOR
MR 11515

Figure

The

information on

Ampex

Corporation.

Rear

the ARM-10LS

View

EPO

included

Assembly

here

site

permission of

ARM-10LS
-4~

Initial Power-On Procedure - Perform the following procedure to
apply power to the memory. Controls and indicators are illustrated
in the OPERATION section.

1.
2,

At the rear of the blower module, check that the circuit
is pushed

breaker button
On

in.

EPO front panel:

Set MAIN POWER circuit breaker

Loosen

the

inner

two

to OFF.

thumbscrews

the

panel

and

remove the EPO subpanel assembly. Ensure that the
five DIP switches at the top of the EPO PWBA are set
the
Replace
in Figure 2.
as shown
correctly,
assembly.

Set REMOTE/LOCAL switch

Set

VOLTAGE

all

position.

to LOCAL.

MARGIN

Set MAIN POWER circuit breaker

Press

seconds.

This

the

center

pushbutton

hold

for

three

to ON.

and

step ensures proper power—-up sequence.

s25

ON | OFF ON

OFF

POWER

switches

DIP SWITCHES

4
=

EPO SUBPANEL

EPO PWBA

(TOP VIEW)

MR 115616

Figure 2

EPO PWBA Switch Settings

ARM-10LS
_5-

Check

that

the

fans

are

operating.

NOTE

Memory will
operating.
4,

Voltage

not

Check:

turn

unless

Verify/adjust

power

normal
voltage
defined
in Table
voltage test points, and Figure 4
voltage

adjustment

locations.

Table

Voltage

are

supply

outputs

1.
Figure
shows the

Parameters

Nominal
DC Output

Tolerance
Low

High

PS1

+4.95

vdc

+5.05

Vdc

vdc

PS2

-5.7

Vdc

-5.75

vdc

-5.65

vdc

PS3

~5.2

Vdc

-5.25

Vdc

-5.15

vdc

PS4

+4.95

vdc

+5.05

vdc

PS5

+12

{PSB)

Vvdc
Vdc

+11.95

. ;'%

+5 VDC

+12.05

vdc

=] =\ E e

(PS4)

—5.7VDC

]

(]

fl; 1|

[T1T

T
T
NI

QTN
|

W0
'

1
Ty
lIlll
l“llu

”Ll

]

(PS2)

BT LJ| T %
T

IO T NN T \ W | i

}

(

”

+5 VDC T

(PS1)

[N | |

—5VDC

vdc

TS
A
T
TEINLS)
\
N

[N
I

[RRE

T —
-

1INt

HITINg 111
T
T
:ll“”“llll”

rrln

Hn[

[

ALL

MR 11517

Figure

ARM-10LS

Voltage

Check

Points

3 shows
the
power supply

Power
Supply

+12 VDC

(PS3)

fans

ARM-10LS
._6_

POWER SUPPLY

FUSE
®

PS2 (—5.7 VDC)

&l
g

VOLTAGE ADJUSTMENT
(PS1, PS3, PS4 AND PS5)

Mo,

@)
O

fo)

VOLTAGE

ADJUSTMENT

PS5

(+12 VDC)—|

PS4

(+5 VDC)
PS1

(+5 VDC)
PS3

(—5.2 VDC)

MR-11518

Figure 4

Power Supply Voltage Adjustment Locations

ARM-10LS

VTH

Adjustments:

The

following

for all Transceiver PWBAs.
CcJ111-CJ118, €J120-CcJ127.)

locations:

must

made

CJ102-CJ109,

Set the digital multimeter to the lowest practical
scale and measure dc voltage at test point lugs on
the
Transceiver
location.

adjustments

(Card

PWBA.

Adjust

the

potentiometer R4
digital
multimeter

Refer

Figure

for

until
the
voltage
read
on
is
nominally
-1.65
+ 0.0l

vdc.

VADJUST

(TYPICAL EACH TRANSCEIVER)

olo]

[o[o
]

N\ TP1 VRer
(TYPICAL
EACH TRANSCEIVER)
TP2 GND

(TYPICAL
EACH TRANSCEIVER)

Figure

VTH

MR 115619

Test

Points

General Component Information
Figure 6 shows the placement of all PWBA boards in the rear
ARM-10LS.
(A similar chart appears on the
inside of the
rear

of the
unit's

door.)

Tables
2,
3,
and
4
cross
reference
the
Ampex
numbers
with
Digital's
part
numbers
for
the
Digital
now
supports
the
ARM-10
memory,
you
directly from Digital.

Figure
7
shows
the
locations
of
resistor assemblies and voltage test

PWBA
board
part
boards.
Because
can
order
parts

the
various
points on the

terminator
backpanel.

and

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ARM-10LS

ANN

Figure

MR 11514

Q[~

Terminator
—

and

mbSwA0av1A65ildHLs=oiOajW9Lo3yirW

Resistor

Assemblies

ARM-10LS
...9_

Table

PWBA Table

Title

Display

Ampex
Register

Transceiver

Control

Indicator

Sector

Port

Timing

Memory

ECC

Contains

Part

Control

part

Ampex

256

3504400-~-01

512

K
K

1024

Part

29-80383

29-80369

3506180-01*%*

29-80352

3504400—__ +

29-80371+

3502924-02

29-80374

3502915-02

29080372

3504406-03

29-80373

feature

storage

No.

size:

Digital

Part

No.

3504400-02
or

29-80350

3506182~-01*%*

3502283-01

3504400-03

29-80371

Table

Abbr.

PWBA Table

16 K Modules

Title

Ampex

Display

Transceiver

CIl

Control

Indicator
Sector

Port

Timing

Memory

ECC

Alternate

Part

256

512

768

Part

No.

3280998-01

Digital
Part No.
29-80366

3504408-~01

Driver

3502283-01

Control

3504402~-01

Control

3504400-__ +

Control

3502924-02
3502915-02

3504406-03

part

number

Storage

(No Validate Storage)

3281609-01%*

Interface

1024

storage

depends

Storage

768

Part No.

3281609-01

validate

number

Storage

29-80348

3506195-01%*

Driver

Control

Part No.

3506766-01**

Interface

Alternate

16 K Modules with Validate

Digital

Abbr.

3506195-01

depends

Ampex

Part

storage

size:

No.

3504400-01
3504400-02

3504400-03

Table

Abbr,

PWBA Table

Title

Ampex

Display

K Modules

Part No.

Digital
Part No.

3506766-01

29-80348

Transceiver

3506195-01

29-80350

Control

3506204-01

Indicator

Sector

Interface
Driver

Control

pPC

Port

Timing

Memory

BD¥*

ECC

Refer

Control*

29-80351

3506180-01

29-80352

3506206—-__ +

Control

Part

number

29-80356
29-80358

3506208-01

29-80359

Tables

and

for

depends

storage

size:

Storage

Ampex

1024

3506206~-01

29-80353

2048

"3506206-02

29-80354

3072
4096

K
K

3506206-03

29-80355

Part

No.

Digital

29-803_
_ +

3506678-02
3506685-02

locations.
+

29-80349

3506293-01

Part

external

No.

interleave

card

ARM-10LS
-10~

Equipment Configuration

Assign Unit Starting Address - To set the unit starting address,
determine the amount of memory below the Ampex unit; then refer to
Table 5 for the value of addresses, bits 14-20. Set UNIT STARTING
ADDRESS switches accordingly. Unit Starting Address switches are
located

the ARM-10LS Control

Panel.
NOTE

After
setting
the
starting
address
be
must
switch
reset
the
switches,
pressed to properly configure system
size and last address boundary.

AlS

Al6

[

OO0 OHFHFHEROOOOO

HOOMEMFOORFOORFRFOOO

*HOHOHROROHFOFOHFOHROO

*OOOOOOCOOOODOOLOOCOKHO

through

R OO0
000
S

3072
4096

2048
3008

HFOOOOOQOQOOOOOODOOOOOO0O

960

1024
1984

576
640
704
768
832
896

A20

COOCCOCOLCOOOOOOLOOOCOC0O

192
256
320
384
448
512

Al7

32
64
128

RRAXAAARAARNARARARRAARARARARARRRAR

(<]

Al4

Unit Starting Address Switches

Unit

Below

Memory

[

Unit Starting Address

Table 5
Of

oty

through

Repeat

all

above.

Assign Logical Sectors to Physical Sectors - The two Sector Index
switches on the ARM-10LS Control Panel determine the assignment of
logical sectors to physical sectors. For normal operation, set
both switches to the 0 position (down). In this position logical
sector

numbers

correspond

physical

sectors,

i.e.,

when

the

CPU

it will select physical Sector 0 in the
addresses Sector 0,
ARM-10LS. Table 6 lists the logical/physical sector assignments
for all combinations of Sector Index switch settings.
Table 6

Sector Index Switch Selections
Physical Sector Selected*
(Memory Busy Indicator On)

Sector

By CPU

Selected

SW10

SWo1l

S52

Ss1

Display

S3
S0

S0
S1

Switches =

S2
S3
*Sector

SW1ll

S1
52

Establish Interleave Level - Two sets of switches,

SWO00
S0

52
S3

shown in Figure
are used to establish the interleave level of the unit. The
INTERLEAVE switch determines the Internal level of interleave. The
EXT INTERLEAVE switch and the SELECT (MSB, LSB) switches determine

‘external

interleave

level.

ARM-10LS
-11-

INTERNAL
INTERLEAVE

SECTOR

- INDEX — INTERLEAVE
away

tsB!

11mse

0 @

SWITCH S16

@ 2way

1 WAY

PORT 2
ENABLE

PORT 3

[ENABLE

|DISABLE

beranamyd

DISABLE KL

PORT

|ENABLE

SELECT

1'MsB

LSB!

//>

CONTROL

4wAY

2 WAY "\

S37

PANEL

O rway

0 &

PART OF

\\\

S38

5175

EXTERNAL
INTERLEAVE

SWITCH S39

Figure 8

Internal

switch

Interleave

required

interleave.)
(1-WAY)

Control

The

position

Panel

Interleave

Switch

Settings

site

conditions.

normal

operation.

EXT

for

MR 11520

INTERLEAVE

Set

Switch

the

(Set

switch

1is

Locations

internal

4-way

set

INTERLEAVE

for

the

external
center

External Interleave Switch Settings - This mode
is required for
proper
operation
in multiprocessor
applications
such
as
shared
multiprocessor
(SMP)
systems.
Set
the
INTERLEAVE switch
to the
4-WAY position.

When

set

unit
can
be
operated
as
unit
0
position of the MSB SELECT switch.

wunit

When

the

set

size

displayed

EXT

INTERLEAVE

size

the

EXT

INTERLEAVE

displayed

EXT

the

INTERLEAVE

the

switch

control

switch

control

The unit can be operated as
positions of the MSB and LSB
switch

Table 8

panel

2-WAY,

twice

the

4-WAY,

four

the

times

Interleave Switch
EXT

Positions

INTERLEAVE

Settings

Unit No.

MSB

LSB

SW S39

0
1

X
X

2-Way
2-Way

0
1
2
3

0
0
1
1

0
1
0
1

4-Way
4-Way
4-Way
4-Way

ARM

Level
2-Way
External

10LS

INTL

Interleave

Not

Used

NOTE

Set
interleave
switch
(S16)
to
4-WAY
when using EXT INTERLEAVE. Each ARM-10LS

unit

must

address.

unit

the

Switch
Interleave

memory

size.

unit

have

the

same

starting

The
the

memory

size.

unit 0, 1, 2, or 3 depending on
SELECT switches. Refer to Table 8

settings.

External

4-Way
External
Interleave

unit

depending

the
for

ARM-10LS
-12-

Enable Memory Modules and Set Memory Board Select Address - Switch
locations are shown and identified in Figures 9 and 10. At each
Memory PWBA location in Row A4A, set the enable toggle switch to
the down position. Set the thumbwheel switch on each Memory PWBA
as

required

by Table

Note that board selection
is not dependent
upon
slot
location;
therefore, the installer may set memory board thumbwheel switches
in
any
orderly
sequence,
as
long
as
sector
and
storage
size
requirements are observed.
For example,
in a 256 K system, four
Memory PWBAs are required
(one/sector).
The Memory PWBAs may be

inserted
sector

into

and

any

the

memory

thumbwheel

FUNCTION

SWITCH

BOARD SELECT—

slot,

when

switch

there

set

only

one

board

per

SECTION A

(SET
TO 0)

BOARD SELECT—

SECTION B

H |

(SET TO 0)

—

switcH

FUNCTION

ASSEMBLY

MEMORY

ENABLE

(DOWN = ENABLE)
MODULE

SELECT

MR-11528

Figure 9

MR 11521

Timing and

Control

Figure 10

PWBA

Table

Memory PWBA Thumbwheel

Memory PWBA

Showing

Switches

Switch

Settings

Unit
Storage
Size

Sector

Thumbwheel
Switch
Settings

256 K

J103

Jlos8

J116

J121

Sector

512

J104

J109

J117

Ji22

768

J105

J110

J118

J123

J106

Jl11

J119

J124

1024

ARM-10LS
-13-

Set

Memory

Timing

and

Control

Switch

Settings

Memory

Control PWBAs, located at AJ107 and AJ120, have
thumbwheel
switches
S1
and
S2.
(See
Figures

ECC

AJ115,
SW3,

each

PWBA
and

and

card

must

Switches

AJ126)

SW4.

has

(See

Each

four

Figure

set

the

number

the

four

ECC

card
11

edge-mounted

for

switch

and

SW4

are

for

maintenance

display

use.

SW2

must

set

position

for

the

down

However,

(NORMAL~DOWN)* —TM——»
SW2

(NORMAL_DOWN)*
— |

*REFER TO TEXT
FOR DESCRIPTION

OF SWITCH FUNCTIONS.

MR-11522

Figure

ECC

PWBA

Switches

AJ1l1l3,

SWl,

Switches

switches

operation.

A-

SW1

(AJ102,

switches,

locations.)
normal

and

PWBAs

B3] [0]1
5] )]

switches

Set

Timing

card edge-mounted
9
and
10.)
Both

SWl

Sw2,
SW3

and

ARM-10LS
...14_.

Checks and Adjustments

RDRS

Adjustment

RDRS

signal.

Perform

the

following

procedure

adjust

the

Make certain that the ARM-10LS address is above the first
20 (octal) system addresses. Run memory diagnostic scope
loops, single-word read, in 4-bus mode. Use display panel
indicators to determine the port-to-sector address, then
move

scope

Observe

probe

RDRS

and

the

appropriate port

Data

Warning

signals

for

each

the

sector.

following

locations.

Signal

I0 Panel

DATA WARNING

(DW)

READ

(RDRS)

RESTART

PWBA

K4.

locations

The

timing

B105-B108,

must

Potentiometer

potentiometer

adjust

set

used
used

to
to

(A4D)

potentiometers

shown

adjust
adjust

Location

pulse

pulse width

K3 and

Figure

width

T1l,

12.

and

T2.

I
'

RDRS

> T2 je—

Tq=290+5
NS
To ON KI PROCESSOR = 75—80 NS

= 90—95 NS
T2 ON KA, KL PROCESSORS
MR-11523

Figure

Memory

Request

RDRS

Timing Adjustments

Adjustment

Load

Observe
the
memory
system control
panel
and
note any
control errors.
If control errors are detected, proceed
with
step
3.;
otherwise,
continue with
normal
port

the Ampex

diagnostic

testing

procedures.

Locate

potentiometer

program and

the

boot

failing

the

system.

Sector

Control

card.
NOTE

This

component

22-turn

potentiometer.
Make
certain
it
|is
initially full CCW; once the adjustment
is made on one Sector Control,

other
the

sectors

and

same

setting.

three

turns

set

to all

potentiometers

Turn K8

Repeat steps 1 through 5 unless the clockwise turns on K8
are greater than 22.
If the number of turns is greater

than 22 and control
electrical noise is
"glitch

protect"

install

this

Option

section.

clockwise.

errors are still occurring, excessive
present. To correct this condition, a

option

option,

may

refer

added

the

Glitch

memory.

Protection

ARM-10LS
_15_

Glitch

Protection

Option

install

Figure

for

this

option,

proceed

follows.

backpanel

\
=

e | 18

o | 10

]

[]

e
e og
prwmuas | 150
] T
ENL

L
L

BN|

20
21

\
d

Ky
|

—

o | 19

| J

e | 18

pins

—_

pury

NN Ne)
[(E X N

system power.

memory

(]
(o]

locations

—_

off

eeo0eoooe
W

Turn

eo0eccceoe
>

option.

soe00000

this

A |

Refer

T O\,
CINCTN

I NN

L
L

LRI

\J'

: :

]
i

[]

]

)

Figure

Glitch

Protection Jumpers

11524

for

ARM-10LS
_16_

Use
wirewrap
tool
and
30 AWG
Kaynar
following backpanel connections.
From

PORT

wire

Conn.

BJ109

18A

BJ109

18C

BJ 109

18B

BJ109

18C

BJ109

19A

BJ109

PORT

BJ 109

19¢C

198

BJ109

l19C

PORT

BJ110

18A

BJ110

18C

BJ110

18B

BJ110

18C

PORT

BJ110

19A

BJ110

PORT

19C

BJ110

19B

BJ110

19C

Turn

potentiometer

Continue

with

normal

the

PORT

make

Conn.,

PORT

turns

port

counterclockwise.

testing

procedures.

OPERATION

General

This

Information

section

provides
operating
instructions
for
the
ARM-10LS
When operating
in a data processing system the memory is
controlled
by the CPU.
Manual
operation
is generally limited
to
turning power on and off, and establishing the desired operating
modes before on-line operation.
Once the unit
is on-line,
further
memory.

operator

intervention

Controls

and

Operator

controls

panel, blower
and
control,
these
EPO

controls

Panel

should

not

requried.

Indicators
and

status

indicators

are

located

the

EPO

assembly, control panel,
and memory, memory timing
and
ECC
PWBAs.
The
following
paragraphs
describe
and

Power

indicators.
for

the

memory

The

controlled

the

EPO

panel.

controls consist of switches that select remote or local power
sequencing, activate and deactivate the memory, and control power
supply operation.
Related
indicators provide a visual
indication
of
the
power
status
and
the
individual
power
supply
voltage
margins,
and any other
abnormal operating conditions.
EPO panel
controls

Figure

and

indicators

20
()

' l
[

are

described

14.

OFF

_]_©
O

OFF

Table

and

shown

P 9opp e

HIGH HIGH HIGH

HIGH

LOW LOW LOW

LOW SPARE

PS1

PS4

Q@@

® 00
5V

PS2 PS3
BV

18V

@ e

SPARE

® © 0
15y

ON LINE

REMOTE

LOCAL

£RROR POWER POWER
RST

ENABLE

OFF LINE DISABLE

OFF

\ ON

I\ \Q\\

& bbBE
MR-11625

Figure 14

EPO

Panel Controls

and

Indicators

ARM-10LS
_17_

Table 10

EPO Controls and Indicators

Reference

Fig. 14 | Control/Indicator

Designation | Function

Ref. No.| Name

MAIN POWER

Circuit

CB2

Controls ac input
power to memory;

Breaker

automatic

provides

Indicator

protection

overload
for

input

the

Illuminates
circuit.
(white) when active.

CNVC
OUTLET

Circuit
Breaker

CBl

Controls ac input
power to convenience
outlet

Indicator

(J1);

this

outlet is intended
to provide voltage

test
external
for
equipment
wused
by
personnel.
service

Illuminates
when active.

PS1(+5 V)
VOLTAGE MARGIN

Toggle Switch
(3-position)

|S6

(white)

When in up position
margins power supply
1 (+5 V)
down
in

high.

When

position,
margins power supply
1 low. Should be in
(NOM) posicenter
normal
for
tion
operation,

LED (red)

DS1

LED (red)

DS9

PS2(-5.7 V)
VOLTAGE MARGIN

Toggle Switch
(3-position)

|S7

HIGH

LED (red)

DS2

HIGH

LOW

(above PS1
toggle switch)
(below PS1
toggle switch

I1luminates when PSl

is in high margin
condition.

Il1luminates when PSl

is in low margin
condition.

Not used. Power
supply 2 (-5.7 V)

cannot be margined.

(above P52

toggle switch)

DS10

LOW

LED (red)

PS3(~5.2 V)
VOLTAGE MARGIN

Toggle Switch | S8
(3-position)

HIGH

LED (red)

DS3

LOW

LED {red)

DS11

(below PS2

toggle switch)

(above PS3
toggle switch)
(below PS3
toggle switch)

When in up position,
margins power supply

high.
V)
(-5.2
3
When in down position, margins power
supply 3 low. Should
(NOM)
be in center
positions for normal
operation.

I1luminates when PS3

is in high margin
condition.

Tlluminates when PS3
is in low margin
condition.

ARM-10LS
_18_

Table 10

EPO Controls and Indicators

Fig. 14 [Control/Indicator
Ref. No.|Name
6

PS4

(+5 V)

VOLTAGE MARGIN

(Cont)

Reference
Designation | Function

Toggle Switch | 89

When in up position,

(3-position)

margins

power

supply

4 (+5 V) high. When
in
down
position,
margins power supply
4 low. Should be in
center

(NOM)

posi-

tion
for
operation.
HIGH

LED

(red)

Ds4

(above PS4
toggle switch)
LOW

LED

(red)

PS5(+12 V)
VOLTAGE MARGIN

Illuminates when PS4

is in high margin
condition.
DS12

(below PS4

normal

Illuminates when PS4

is in low margin

toggle switch)

condition.

Toggle Switch | S10
(3-position)

When in up position,
margins power supply

5 (+12 V) high. When
in
down
©position,
margins power supply
5

low.

Should

center

(NOM)

tion
for
operation.
HIGH

LED

(red)

DS5

(above PS5
toggle switch)
LOW

PS6

LED

(red)

posi-

normal

Il1luminates when PS5

is in high margin
condition.
DS13

Illuminates when PS5

(below PS
toggle switch)

is in low margin
condition.

Toggle Switch | S11

Not Used

VOLTAGE MARGIN

HIGH

LED

(red)

DS6

LOW

LED

(red)

DS14

UNIT ABNORMAL

LED (red)

DS7

Illuminates
supply

when
a
is 1in

high or low
condition;

margin
also

power

indicates
power

that

below
operating

required
range.

TEMP WARNING

LED

DS8

Not Used

ON-LINE/

Toggle Switch | S12

Not Used

OFF-LINE

(2-position)

(red)

ENABLE/

Toggle Switch | 513

DISABLE

(2~position)

REMOTE/

Toggle Switch | 514

LOCAL

(2-position)

Not Used

Must be set to LOCAL
position.

NOTE

switch

REMOTE
memory

1is

position,
power—on

inhibited.

1is

ARM-10LS
_1o-

Table 10

Fig. 14

EPO Controls and Indicators

|Control/Indicator

(Cont)

Reference

Ref. No.|Name

Type

Designation|

Function

ERROR RST

Pushbutton

S15

Not Used

POWER OFF

Momentary

Switch

(white)
516

Removes all dc power

Pushbutton

to the memory and ac

Switch

power

(red)

the

blower

assemblies.
16

POWER ON

Momentary

s17

Applies ac power to

Pushbutton
Switch (green)

the memory and ac
power
to
the
blowers.
Should
be
held

for

seconds

when applying power.

Blower
blower

Assembly assembly,

breaker
that
if

entire

A circuit breaker is located at
as
illustrated
in
Figure
15.

the rear of the
If
the
circuit

is tripped, press the center button to restore power. Note
the
breaker
is tripped,
power will be
removed
from the

memory

unit.

BLOWER

CIRCUIT
BREAKER

®)

JUMPER
PLUG
MR 11526

Figure

Control

Blower

Controls

Panel

Assembly

and

Circuit

Breaker

indicators

located

Panel
(Figure
16)
are
functionally divided
Status,
and Maintenance Groups.
Each
group
following
Control

The

Control

Included

are

Port

and

the

Control

establishes

for

enabling

establishing

ports,

memory

for

below

this

boundaries,
the

unit.

11.

depending

Table

the

indicates

quantity
the

positions

parameter.

Starting

starting
Interleave

the

Address.

address

switch

the ARM-10LS
plus
1).
If
2-WAY,

Table

three

type

to
be

The

operating
the

request

set

described

switches.

Unit
Starting
Address.
Seven
switches
are
used
establish the memory starting address. The address may

are

Enable

memory

each

memory

Sector

and

types

switches

Group

switches

setting address boundaries,
and interleave mode.

into
Control,
Error
described
in
the

paragraphs.

Group

parameters.

Location

Seven

the
set

LED

indicators

unit.

1-WAY,

the

display

the

indicators

the

External

display

last
address
the
External

starting

plus
1
(maximum storage size
Interleave
switch
is
set
to
address indicators display twice

the storage size
size
plus
1
is

plus 1.
Four
times
the actual
storage
displayed
if
the
External
Interleave
is set to 4-WAY.
When internal
interleave
(2-WAY
4-WAY) is active, the next starting address indicators

switch
or
are

not

capacity

affected.

only.

The

address

range

reflects

system

neEow

STATUS

INDICATORS

15 16

18 19

22 23

e o0

oo o

e 0o 0

19 20

2122 23

242526

27 28 29

o0 0

PORT ACTIVE

)
4

5 6

o 0o 0

DATA

)

31 32

e 0o 0

27 28 29

oo o

— CONTROL STATUS

AWRQ MB

o0 00000

24 25 26

33 34 35

o0
o

30 31 32

o 0o 0

RDRQ WRRQ

e 0o o

STOT-WiV

—

SECTOR DISPLAY

MSR
L <SR!

MsB

LS8l

STOP

GROuUP

WARNING

NEXT STARTING

———

ADDRESS e

SECTOR

14 15 16 17 18 19 20
o

060

0600

rUNIT STARTING ADDRESS+
16 17

C00000E
'

P ORT 1

PORT O

CONTROL

ENABLE

DISABLE

GROUP

|ENABLE

\NDEX . INTERLEAVE

1r|;/|_se

1 WAY

PORT 2

PORT 3

|ENABLE

|IDISABLE

IDISABLE

[ENABLE

'DISABLE

3 ' ERROR

SECTOR1

SECTOR2

LAMP TEST

FAULT RESET

MAINTENANCE

GROUP

SECTOR
3

Ou®

ENABLE | ENABLE | ENABLE | ENABLE | RgseT

@ZWAY

°©® &

SECTORO

Lss! 4 WAY

PORT ERROR —

-0~

f SECTOR CONTROL ERROR 1 SECTOR PARITY ERROR I

TEMP ' 0

ERROR

DISABLE | DISABLE | DISABLE | DISABLE

PORT 4

|ENABLE

'DISABLE KL

G
©®

PORTS
|ENABLE

PORT 6
JENABLE

G ©®

I'DISABLE KL

PORT 7
[ENABLE

O ©®

'DISABLE KL

O«

'DISABLE KL

—EXT INTERLEAVE —

SELECT

,ImsB

o @

Ls!

4way

@ 2war

1 WAY

Figure

Main Control

Panel

MR-11527

ARM-10LS
_21_.

Sector

1Index.

Two

switches

order
the
e,

in which sectors
sector index switch

Interleave.

are

used

determine

will

be selected.
settings.

3-position

toggle

switch

Table

used

the

shows

select

the Memory Interleave mode.
The 1-WAY position
selects
noninterleaved addressing.
In the 2-WAY position, Sector
0
is
interleaved
with
Sector
1,
and
Sector
2
is
interleaved
with
Sector
3.,
In
the
4-WAY position,
all
four sectors can be simultaneously addressed.
f.

Reset.

memory

single
unit.

flip-flops

6400S

PWBAs,

and

Control

PWBAs.

Every

pushbutton
When

resets

time

RESET

port

Interface

PWBA

capacity

(last

address

displayed

switch

pressed,

Memory,

pressed,

automatically

the

control

latches

Sector

circuitry

configures

and

initializes
presets

error

latches

request

address)

that

RESET

resets

the

control

panel

all

the

Control

system

unit

ECC

memory

starting

indicators.

NOTE
Do

not

press

reset

during

system

operation.

Table
Name

Port

and

Sector

Type

Enable

Switches

Function

PORT

2-position

ENABLE/DISABLE

Places

Toggle

on-line

ENABLE

position,

on~line

(connected

Switch

associated

memory

off-line.

port

the

port

CPU

request

or
channel); in DISABLE position,
port is switched off-line.

PORT

3-position

KA/KI/KL

Toggle

Determines

Switch

SECTOR

2-position

ENABLE/DISABLE

Toggle

time

sector.

disables

CPU.

Sector

Index

Sector

associated

ENABLE

position,

sector

position, CPU
is blocked.

Sector

will

are

set
installation.)

accessed

Table

memory

the

physical

Sector

type

the

(Switches

Enables

Switch

the

which

respond.

can

access

DISABLE

sector

Addressing

Memory

Display

Electrical

Index

Physical

Unit

Display

Switches

Address

Switches

Address

Sector

Indicator

MSB

(CPU

MSB

Select)

LSB

(Memory
Sector)

10)

s1
Sl
Ss1

LSB

Sector

1
1

0
1

1
0

2
3

S2
S3

S2
S2

ARM-10LS
_22_

Note that sector electrical bit assignment is a function of memory
size and

interleave settings.

External Interleave Switches.

Jge.

(s39)

sets

which

external

A 3-position toggle switch

interleave

in multiunit

level

installations. This switch controls SELECT switches MSB
and LSB. In the 4-WAY position, both MSB and LSB are
enabled. In the 2-WAY position, only MSB is enabled. In
the 1-WAY position, both MSB and LSB are disabled
interleave

(external

disabled).

Two 2-position toggle switches that
LSB.
SELECT MSB,
determine the order or unit selection in a multiunit
1in
The settings for these switches,
installation.
conjunction with EXT INTERLEAVE (switch S39), are defined
in

Error

Group

control
a.

and

Table

port

Error

The

Group

permits

the

locate

operator

errors.

STOP ON ERROR toggle switch. The 2-position STOP ON ERROR
switch has the following functions.

Up Position.

Error

If a Sector Control,

detected,

display

indicators

the

memory

Sector Parity,

memory

status

ceases
the

or Port

operation;

time

error

detection.

Down Position. Memory continues operation under control
of the CPU. Indicators accumulate and display errors.
FAULT RESET pushbutton switch. When pressed, FAULT RESET
clears all control panel error displays (Sector Control,

Sector Parity, and Port Error). In addition, the Fault
Reset Function clears error displays on the four ECC
PWBAs including UE, CE, DOPE, DIPE, and Card/Chip
indicators. This switch may be pressed during system
operation

(also refer to the Control Group section).

Sector Control Error Indicators. During a Write or
Read-Modify-Write cycle, if a Write Restart signal has
not been received from the CPU within 25 microseconds, a
control error occurs, and the Sector indicator lights.

Control error indicators also light whenever an invalid
request is detected. The condition also occurs when a
cycle (Read or Write) has not been completed within 24
microseconds.

Sector Parity Error Indicators. A SECTOR PARITY ERROR
indicator lights to identify the sector in which a Read
or Write parity error has occurred. It should be noted
that sector identification relates to physical locations,
and is not influenced by interleaving or Sector Index
addressing.

1identify 1I/0
indicators
These
Port Error Indicators.
ports in which control or parity errors occur during a
Write or Read-Modify-Write cycle. If the STOP ON ERROR
switch is in the down position, accumulated errors will
be

displayed.

Refer to Table 13 for information on sector control
parity error, and port error LED indicators.
Table 13

Error Type

Read Error
Write Error
Control Error

error,

sector

LED Error Indicators

Sector Control

Sector Parity

Error

Port Error

LED OFF
LED OFF
LED ON

LED ON
LED ON
LED OFF

LED OFF
LED ON
LED ON

Error

ARM-10LS
_23_

Status

Group

relating
a.

The

memory

Status

Group

provides

Sector

Display.

The

Status

Control

Status,

and

Address

Group
and

indicators

(Port

Data)

shared

four

Memory Sectors. The status of
displayed at a time.
To view the
the SECTOR DISPLAY switches must

number

representing

DISPLAY

indicator

the

will

Sector.

Active.
Illuminated
indicate operating ports.

Control

Status.

Table

are

the
d.

Status

used

are

Active,
by

the

only one sector can be
status of any sector,
be set
to
the
binary

The

corresponding

SECTOR

light.

Port

indicators

visual

operations.

LEDs

port

active

indicators

Control

monitor

the

operating

group

described

mode

and

status

memory.

Address

and

Data.

continuously

and

indicates

These

updated

data

that

the

status

display

provide
transceiver

indicators

contents.

contains

An illuminated
logical 1.

lamp

NOTE

The

memory

unit

address

"normalized"

to a number ranging from 0 to the value
of the last address
(256 K, 512 K, 768
K, or 1024 K). Address bits 14-17 on the
control panel are not used. The selected
physical sector
is indicated by sector
display indicators. Address bits 18, 19
always
display
the
selected
memory
module.

Table

Control

Status

Indicators

Control/Indicator
Name

Type

Function

AWRQ

LED

Monitors

Await

Operation
Sector | Lights

Request

Memory

Status.

not

LED

Monitors

Busy

LED

Monitors

is
all

locked

out.
to

Sector

Unit

Lights

Memory

Sector.

with

1lit

indicate

sector

has

are

cycle.
due

that

busy

with

completed

portion of
cycle
and

LED

When

sector

available to execute a
Extinguishes when a

RDRQ+

busy.

Memory

busy

the

servicing

indicate

cycle.

ports

refresh

one

other

dimly

Status

busy

Always

Available

awaiting

Extinguishes

interface

sector
port,

interface

is
from

ports.

Memory | Lights

from

Sector.

and

request

memory

when

indicate

busy

access

cycle,

the

Read

Read-Modify-Write
is
awaiting
WRRS

(Write

Restart).

Monitors

Read

Lights

Request

input

cycle

indicate

read

write

requested.

line.
WRRQ+

LED

Monitors

Write

Lights

Request,

cycle

+If both RDRQ and WRRQ indicators
Read-Modify-Write mode.

Maintenance

Group

TEST

and

switch

Figure

and

are

the

The

are

Maintenance

TEMP

described

WARNING

illuminated,

Group

15.

the

consists

indicator.

in Table

indicate

requested.

These

unit

are

the

LAMP

shown

ARM-10LS
-24-

Memory PWBA - Two switches and four indicators are located on each
memory

PWBA,

Figure 10)

These

components

are

illustrated

and described in Table 16.

Table 15
Control/Indicator

Figure

(and

Maintenance Controls and Indicators

Name

Type

Function

Operation

LAMP
TEST

Toggle
Switch

Checks for
faulty panel

Press this switch to test all
indicators. Indicators that do

TEMP
WARNING

LED

Indicates over- | Illuminates if overheating
occurs. Extinguishes when
temperature

indicators.

condition.

not light are faulty.

temperature returns to normal.

Temperature

within
cab%net is
136 'F or
greater.

SW/IND

FUNCTION

ASSEMBLY

OFFLINE

DS1 —0)

BUSY

ps2 —0

NOT USED

ps3 —0)

NOT USED

pDs4 —i0

MR 11529

Figure 17

Memory PWBA Showing Lights

ARM-10LS
_25_

Table

Memory

Control/Indicator
Name
OFF

LINE

PWBA Controls

Indicators

Type

Designation

Function

LED

DS1

Illuminates

(yellow)
BUSY

and

Reference

LED

DS2

Illuminates

{green)

when

Memory

PWBA

when

Memory

PWBA

disabled.

performing

Read

Write

cycles.
MULTIBIT

LED

ERROR

(red)

SINGLE

BIT

ERROR

LED

DS3

Not

Used.

DS4

Not

Used.

(red)

ENABLE

Toggle

Switch

the

down

position,

Memory

position,

enables

PWBA.

1In

places

the

the
up
Memory

PWBA off-line

(disabled).

Provides

board

MODULE

Thumb-

SELECT

wheel

control

Switch

four

settings

selected

inputs

select

(0-3).

PWBA

when

address

hex

output

match

line

Memory
PWBAs
1in
each
must be set as follows.

S2.

sector

Switch

Memory
board
S1
ECC

and

Timing

Control

PWBA

Figure

S2.

Each

switch

must

PWBA

cover

and

shown

Six

panel,

has

indicators,

reflect

two
be

Setting

Memory

0
1

l1st
2nd

64K
64K

3rd

64K

(128K/Sector)
(192K/Sector)

4th

64K

(256K/Sector)

The
to

visible

error

Memory

hexadecimal

set

the

(64K/Sector)

Timing

and

thumbwheels

"0"

Control

switches,

position.

through

conditions

PWBA Selected

slots
the

the

memory.

memory

ECC

PWBA

indicators
and
related
controls
are
shown
in
Figure
18
and
described
in
Table
17.
Note
that
any detected
error causes
the
indicators
to
light.
From
combinations
of
error
indications
(latched

can

the

time

error),

the

following

types

information

determined.

Type

error:

Type

read

data

error:

error

single-bit

write

data

(corrected)

error.
or

double-bit

(uncorrected).
3.

Location

error:

sector,

card,

chip

group,

and

data

bit

number.
NOTE

The Chip Group is one of four physical
groups of 43 memory chips located on the
memory

FAULT
chip

PWBA.

Refer

ISOLATION
fault

the

section

isolation

MEMORY

for

the

CHIP

memory

procedure.

Power-On Procedure - Power-on sequencing
is performed
internally,
eliminating
the
need
for
special
precautions.
Since
power
1is
applied
to memory
from
the
memory
EPO panel,
the
REMOTE/LOCAL

switch

must

set

the

LOCAL

position.

power

the

memory,

set the MAIN POWER circuit breaker to ON and press the POWER ON
pushbutton switch for approximately three seconds. The blower fans

should

operate,

check

that

indicators

indicating

VOLTAGE
are

that

MARGIN,

power
UNIT

applied

ABNORMAL,

On-Line/Off-Line Operation
For normal- operation,
set port

ENABLE/DISABLE

the

deselect

DISABLE.

to
and

the

unit.

TEMP

Also

WARNING

extinguished.

memory

unit,

set

port

switches

ENABLE/DISABLE

ENABLE.

switches

ARM-10LS

Power-0Off

Procedure

Power may be removed at the memory EPO panel by pressing the POWER

OFF pushbutton

switch

|
77
/

the EPO panel.

IND

FUNCTION

DS1

BIT/CARD (10-43/0-3)

DS2

BIT/CHIP (GROUPS 0-3)

DS3

¥4

]
4

e
4

DS4

DS5

DOPE

DS6

DIPE

FUNCTION

SW1

ECC DISABLE

SW2

ECC SWAP

SW3

LAMP TEST/ECC FAULT

swa

ECC DISPLAY

RESET

MR 11630

Figure

ECC PWBA Controls and Indicators

ARM-10LS
_2'7_

Table

Control/Indicator

ECC PWBA Controls and

Indicators

Reference

Name

Type

Designation

Function

ECC

Toggle

SW1

DISABLE

switch
(2-position)

Up position: Disables ECC
(error checking and
correction) Memory stores

and

bit

checks

for

odd parity

single

entire

data

word.

Down

position:

Enables

Swaps

bits 29-35 with

bits

36-42

ECC

function. Memory corrects and
reports single-bit data errors
and reports multibit errors.
ECC

Toggle

SWAP

switch
(2-position)

LAMP
ECC

TEST/
FAULT

RESET

Push-

SW2

SW3

button

Toggle

(2-position)

clears

NOTE:

tary)

Display

can

When pressed momentarily,
lights all ECC LED indicators
and

(momen-—

ECC

ECC bits

checked. Switch is enabled in
the
up
position
for
maintenance
purposes
only.
1is operational
function
This
when SW1
(ECC DISABLE)
is in
the up position.

when
SwW4

ECC

Switch

the

errors.

may

system is

pressed

running.

Controls hex displays DS1 and
DS2. Up position: Causes DS1,
DS2 to display failing Memory

chip
K
16
failing
PWBA and
group.
Memory PWBA number
is
read on DS1 while 16 K chip
group number is read on DS2.
Down position: Causes DS1, DS2
to display Memory PWBA failing
data bit number. MSD is read
on DS1 and LSD is read on DS2.

Bit/Card

Hex

DS1

Display

When SW1 is down and SW4 is
up,
DS1 displays the
failing
Memory

PWBA

decimal

number 0-3.
(Corresponds
to
module select number on Memory
PWBA switch S82.)
Bit/Card

Hex

DS1

Display

When SW1 is down and SW5S is
down,
DS1
displays
the
most
significant
decimal
digit
of
the
failing
single
data
bit
(MSD will be a number 0-4). If
the

failure

error,
digit

Bit/Chip

Hex

Display

DS2

DS1

1is

displays

multibit

the

hex

"F".

Used in conjunction with SWl
and SW4 to display failing 16
K
chip
group,
depending
on
position

SW4.

When SW1 is down and SW4
is
up,
DS2 displays
the
failing
16 K group as a decimal number
0"’30

When SWl1
is down and SW4
is
up,
DS2 displays
the
failing
16 K group as a decimal number

ARM-10LS
_28_

Table

ECC

PWBA Controls

Control/Indicator

Reference

Name

Designation

Type

and

Indicators

(Cont)

Function
When

SW1

down

and

down,
DS2 displays
significant
decimal
the
failing
single

SW4

the

least

digit
of
data
bit

(LSD will be a number 0-9). If
the
failure
is
a
multibit

error,

DS2
"F".

digit

displays
1If
the

the
hex
decimal

point
on
DS2
1is
always
ON,
the
indicated
error
1is
a
"hard"
failure.
blinks on any ECC

DS2

also

error

(both

correctable

wuncorrect-

and

able).
UE

LED

DS3

Illuminates

(red)

when

pressing

RESET

pushbutton.

(ECC
LED

DS4

the

FAULT

only

SW1l

when

DS5

RESET

pushbutton.

ECC

LAMP

has

read

Illuminates

when

TEST/FAULT

Indicator

in
read
Indicator is
SW1 is in the

SW1l
1is
in
enabled).

bad

detected

when

data

Memory
PWBA.
1Is
Control Panel FAULT

RESET

Out).

down

error

active
only
when
down position (ECC

(red)

single-bit

data

detected

from
the
cleared by

LED

TEST/FAULT

Indicator

enabled.)

(correctable)

been

ECC

when

Illuminates

(red)

has been
from the

Is
cleared
by
Control
Panel

RESET

active

DOPE

multibit

error
data read

detected in
Memory
PWBA.

(uncorrectable)

parity

data
(Data
active only
up position

(ECC disabled).
Indicator DS5
is cleared by pressing Control
Panel FAULT RESET or ECC LAMP
TEST/FAULT RESET pushbutton.
DIPE

LED

DS6

Illuminates

detected
to

when

bad

write

memory).

parity

data

Indicator

(data
DS6

cleared
by pressing Control
FAULT RESET or ECC LAMP
TEST/FAULT RESET pushbutton.
Panel

MEMORY

CHIP

FAULT

ISOLATION

If a failure can be isolated to one data bit on a memory PWBA, the
failing
memory chip
can be
1located
and
replaced.
To
isolate
a
failing memory chip, note the status of address bits 20 and 21 at
the
are

time

failure;

partitioned

corresponding

then

into
the

refer
four

status

Figure

19.

The

addressable

address

¥X

bits

and

172 memory
21.

Address Bit
20

1st

2nd

3rd

4th

High

Low

Logic
Logic

Level
Level

(Logical
(Logical

0)
1)

chips

blocks

ARM-10LS
-29-

Locate

chip

remove

and

the

replace

intersection
chip,

data

bit

and

block;

then

follows.
CAUTION

Memory ICs
damaged by
l.

Set

Replacement

PWBA

foam;

hand

memory

chip

one

replace

flat

memory

conductive

Keep

are MOS devices, which can
static electric charges.

DATA BIT NUMBER

surface
ICs

and

are

place

the

contact
with

1ST 16K

place

one

normally

free

foam

with

hand

packaged

block

the

PWBA;

the

PWBA,
a block
PWBA.

remove

and

hand.

2ND 16K

3RD 16K

4TH 16K

—e ——e—e—.——_———ob

(TYNCAL172PLACE$\\\\

MR 11531

Figure

Memory

PWBA Chip

Locations

ARM-10LS
_30_

INSTALLATION

REFERENCE

INFORMATION

This section provides information that
with memory system installation tasks.

Table 18

may

used

conjunction

Memory Address Assignments

Interleave
Level

Box
Size

Unit
Select

Sector
Select

Module
Select

Block
Select

Intern
Addr.

ONE-WAY

14,15

16,17

18,19

20,21

22-35

14,15

16,17

18,19

20,21

22-35

14,15

16,17

18,19

20,21

22~35

256 K

14-17

18,19

20,21

22-35

14,15

16,35

17,18

20,21

22-34,19

768 K

14,15

16,35

17,18

20,21

22-34,19

512 K

14,16

17,35

20,21

22-34,19

256 K

14-17

18,35

20,21

22-34,19

14,15

34,35

16,17

20,21

22-34,18,19

768 K

14,15

34,35

16,17

20,21

22-33,18,19

512 K

14-16

34,35

20,21

22-33,18,19

256 K

14-17

34,35

20,21

22-33,18,19

14,34

15,35

16,17

20,21

22-33,18,19

768 K

14,34

15,35

16,17

20,21

22-33,18,19

512 K

14,15,34

16,35

20,21

22-33,18,19

256 K

14-16,34

17,35

20,21

22-33,18,19

34,35

14,15

16,17

20,21

22-33,18,19

768 K

34,35

14,15

16,17

20,21

22-33,18,19

512 K

14,34,35

15,16

20,21

22-33,18,19

256 K

14,15

16,17

20,21

22-33,18,19

EXTERNAL

(NO INTERLEAVE) | 768 K
512

ONE-WAY
EXTERNAL

or
TWO-WAY

INTERNAL

ONE-WAY
EXTERNAL

or
FOUR-WAY

INTERNAL

TWO-WAY
EXTERNAL

or
FOUR-WAY

INTERNAL

FOUR-WAY
EXTERNAL

or
FOUR-WAY

INTERNAL

34,35

Address example: 01410010 (1 M No Interleave)
- - 140
0

Bits

150
160
171

181
190
200

17,

18,

chip 0 failed.

23,

210
220

240
250

270
280

300
310

231

260

290

321

330
340
350

and 32 were on,

therefore

sector

module

ARM-10LS
_31._.

Octal Storage Barrier Addresses
One Megabyte by 16 K Increments

Table 19

OoCT

DEC

oCT

DEC

0000000-0037777

O0K- 16K

2000000-2037777

512K- 528K

0040000-0077777

16K- 32K
32K~ 48K
48K~ 64K

2040000-2077777
2100000-2137777
2140000-2177777

528K- 544K
544K- 560K
560K- 576K

0100000-0137777
0140000-0177777
0200000-0237777

64K~ 80K

2200000-22377717

576K~ 592K

0240000-0277777

80K- 96K

2240000-2277777

0300000-0337777

96K~112K

2300000-2337777

0340000-0377777

112K-128K

2340000-2377777

592K- 608K
608K- 624K
624K- 640K

0400000-0437777

640K- 656K

128K-144K

2400000-2437777

0440000-0477777

144K-160K

2440000-2477777

656K—- 672K

0500000-0537777

160K~-176K

2500000-2537777

672K~ 688K

0540000-0577777

176K-192K

2540000-2577777

688K~ 704K

0600000-0637777

192K-208K

2600000-2637777

704K- 720K

0640000-0677777
0700000-0737777

208K-224K
224K—-240K

2640000-2677777
2700000-2737777

720K- 736K
736K- 752K

0740000-0777777

240K-256K

2740000-2777777

752K~ 768K

1000000-1037777

256K-272K

3000000-3037777

768K- 784K

1040000-1077777

272K-288K

3040000-3077777

784K- 800K

1100000-1137777

288K-304K

1140000-1177777

304K-320K

3100000-3137777
3140000-3177777

816K~ 832K

1200000-1237777

320K-336K

1240000-1277777

336K-352K

1300000-1337777

352K~-368K

1340000-1377777

368K-384K

800K- 816K

3200000-3237777
3240000-3277777
3300000-3337777
3340000-3377777

832K~ 848K
848K~ 864K
864K- 880K
880K- 896K

1400000-1437777

384K-400K

3400000-3437777

896K- 912K

1440000-1477777
1500000-1537777
1540000-1577777

400K—-416K
416K-432K

3440000-3477777
3500000-3537777
3540000-3577777

944K- 960K

1600000-1637777
1640000-1677777
1700000-1737777
1740000-1777777

448K-464K

3600000-3637777

960K- 976K

464K-400K

3640000-3677777

480K-496K

3700000-3737777

992K~-1008K

496K-512K

3740000-3777777

1008K-1024K

432K-448K

912K~ 928K
928K- 944K

967K~ 992K

Interleave | Port Control |Box
Level

Internal

3506206—-01

3506206-02

2 M

1-WAY

3506206-03
3506206-03

3 M
4 M

Internal

3506206-01

3506206~-02
2-WAY

3506206-03

M1l

J122

J121|

AJ119

J118

J117

J116 | AJ111 J110

X
X

J109

J108{

AJ106 J105

X
X

J104

J103

X
X

X
X
X

X
X

X
X
X

X
X

2 M

3 M

X
X

3506206-03

4 M

3506206-01

3506206-02

2 M

4-WAY

3506206-03
3506206-03

3 M
4 M

J123

(One Box)

Internal

NOTES:

PWBA Version|Size | AJ124

X
X

STO0T-WUV

Typical Memory PWBA Locations for Internal Interleave

Ss3

X
X

BOX SIZE is memory capacity per ARM-10LS cabinet.

2. X indicates where Memory PWBA is to be installed for the corresponding BOX SIZE.
3. Memory locations for 3 M size vary depending on interleave level.

X
X

-€-

Table 20

Box
Number

Port Control | Box
PWBA Version | Size

BOX 0

3506206-01
350620602
3506206-03
3506206-03

512 K
1M
1.5 M
2 M

3506206-01
3506206-02

512 K
1M

3506206-03
3506206-03

NOTES:

1.5 M
2 M

M3
M2
AJ111 J110

X
X

M1
J109

MO
M3
M2
J108 | AJ106 J105

Ml
J104

MO
J103

X
X
X

X
X
X
X

X
X
X

X
X
X
X

X
X

1. Sectors 2 and 3 of each box not used.

2. X indicates where memory PWBA is installed for corresponding BOX SIZE.
3. 512 K and 1.5 M box sizes are nonstandard.

ST0T-WdY

BOX 1

Typical Memory PWBA Locations for External 2-Way Interleave (Two Box)

_EE_

Table 21

s3
Box
Number
BOX 0

BOX 1

BOX 2

BOX 3

NOTES:

Port Control |Box
PWBA Version|Size

(Four Box)
S0
M3
M2
AJ106 J105

3506206-01

256 K

3506206-02

512 K

3506206-03
3506206~03

768 K
1M

3506206-01

256 K

350620602
3506206-03

512 K
768 K

350620603

3506206-01

256 K

350620602

512 K

350620603
3506206-03

768 K
1M

350620601
3506206-02
3506206-03

256 K
512 K
768 K

3506206~-03

Sectors 1,

X indicates where Memory PWBA is

STO0T-WYV

Typical Memory PWBA Locations for External 4-Way Interleave

Ml
J104

MO
J103
X

X
X

X
X
X

and 3 of each box not used.

installed for corresponding BOX SIZE.

_VE_

Table 22

Common

File

System

Contents

(CFS).eececececocsssccccoscsscrscsosscnccccccsce

TNELOAUCEION . e e eeooossoesscssoscseasssecasosscsscsssccsscosoccsasssnscse
CFSSRV MOAUlE e.eeeeesoocossosssssccsossososssscnsccescssssssse
RESOUYCE

CFS

Block

MANAJELr ceeooesssosssasssocscsssscssssoasossscsscsocsansscs

FOIrMAt eeeeeoseosassosssossesssssocsasscssosccsscssossccscscs

File

System ChangeS...ciceeeceecsescccoscscsccsccncccccccnccncs

Crucial CFS Storage LoCationNS.eceeeecceesscccccccsocsssccccons

s
o
8

SUMMALYeeocooscossoscsccssscssscssocscscssnossscsocssvsssense

[

[]

[)

VOEiNGeeeoeesoooensoseosasacssossssnssssssosossssssnssssccoscss

.
[]

Attributes of Locking MechanismS..ccceeeececcccccecccccens

Implementation DeviCeS..ceiceesececcecccaccccccccsccccsaces

ManaAgerl eeeceececessoscassssscsosssssscssnscscescscsacsoes

[

MeChanisSmsS..u..eeeeceacsasacsososscscsssssssessscsssesscsnsccscccs

Resource

e
)

System Applications are Client or Peer ProtoColSeeescceccccesns
TOPS=20 CFS ProtOCOl.eeseceescscesocssssscsenssscsscssssessssll
TOPS-20 MCSP ................................................10

CFS

Voter

How CFS Fits into the TOPS20 Monitor V6.l..ccceecccecececcscne

[]

CFS

Extension to Existing ServiceS..eecceeceeescoccecccccscocasncscccces

General Format of a CFS MeSSAJE€ecescececcsscscsssssscssosssscnei
SCA Connection MAnNagel..cssscssecccsassscscsecccscnscsosssscscesss
INitializatioONeseeeecscescacocssesescsassesscsscsscssonvssssoce

VOter................-..........-.....-.....-............-..

wJ~JoaoaoaonuunbdbbhbwWww
WwWww

Table

—

TranSaction NUMDEIS.seeeeeeesoecacsosscssssssssssssasssssesssll

Write Token Examples.........................................12

New KL Microcode for CST Write Bitoeeoeesoosooesoseoasossssosssel?
CFS CONSELAINtS e e evoeeeeacosossseasssesssssssssensssssssanesssl?

CFS Summary..................................................13

TOPS20 V6.1 AC Block 6 and 7 INfOrmMatioONe eesecsooececoccsccccssesrssll
New OPR INfOIrMALIiONeeessooeensesceeaccsssssasssasscasssssssscsssl3

Displaying Disk Drive St ALUSessoecossecccsnacasssesasssssassensld
Displaying Status SErUCEUL @eeooococaseseacasosassssasosncacssald
Examining Mount-Requests in the Queue.... ceeeececseseseseeneall
Creating a Structure During Timesharing...eeeceescosesccaocasal?
Procedures for Running CHECKD . e veovooseosoesacsssossssnsssacsaslB

KLAD20 Naming CONVENEIONS ¢ e eeosoeoeasooacsossscssssasssnessssnsssld

TOPS—-20 V6.0 and V6.1 CI20 Disabling Information........cecee...19
TOPS-20 V6.0 CI20 Disabling at System Start-UpPeeeecsosecososesld
TOPS-20 V6.0 CI20 Disabling within Monitor.EXe....coeecsecesss20
TOPS~20 V6.1 CI20 Disabling at System Start=UpPeeesecsecsasesessll
TOPS—20 V6.1 CI20 Disabling within Monitor.Exe€...ceeeeceee...20

CI20 User Mode Diagnostic Procedures Under TOPS-~20cececccccesses2l
Cluster Rules for Setting CI20 to Unavailable or Available...Z21l
Procedure for setting up CI20

(in the Unavailable State to

Run User Mode Diags).........................................21

DFCIB INFORMATION...............................................23
DFCIB.EXE Rules..............................................23
DFCIB Commands...............................................23

HSC-RAXX Diagnostic/Maintenance ProcCedUreS eceecesoeacecsssasseseldd

Introduction.................................................34
Cronic V200 ProCedUIC.ceesessssessssoscssosscsscsssasnsoccssos .34

Cronic V250 DI OCEAUL e e o sooeseesssssesseassssssssssssssesasseldd
MASSBUS Disks Cluster Mode Diagnostic ProcedUreSeeeescsaccsssesslbd
Introduction.................................................36
Procedure for Checking the VEr—CONFIG.eeeeeeaacnossossasnssesldb
Dismounting and Removing Problem SEFUCLUTC e esoeascssasasocnesd/
MULTIO.EXE Information..........................................37
PAGES.EXE Information...........................................38

TOPS20 V6.1 NIA20 Disabling at System Start—-UpPeeececsesosssoaessesdl
.40
Introduction................................................
Procedure....................................................40

NIA20 User Mode Diagnostic ProCEedUIES.eeeeseseosccassscsacsesaessdl

Introduction.................................................40
NIA20 Users-Mode Diagnostics ReqUirementS.eeeeseeeeacsacseessdl

Procedure to Mount the KLAD . e o seeescssesosncscsnscssnsssesssesidl

STOPSCODES ADDED TO TOPS-20 SINCE RELEASE Beleeeneeeaoasaooassassd?

SYSTEM

FILE

COMMON
-3-

COMMON.FILE SYSTEM

(CFS)

INTRODUCTION

Common File System (CFS) operates at the TOPS-20 file system
level. This is done by "distributing" the file system over the CFS
network. This distribution implies several things.

Processors

The

Other

file

operations

system

data

base

must

parts

agree

must

concern only to a single processor.

existing

file

information.

accommodate additional

peripherally

affected,

for example,

job numbers.

previously

extended

TOPS-20

were

This section describes the specifics of the CFS kernel, CFSSRV, as

well as the extensions and modifications of the file system. Since
this is a design document, it is assumed the reader Iis familiar

with the functional specification for CFS.
CFSSRV

MODULE

CFSSRV contains

The

implement CFS.

the

kernel,

low-level,

The important pieces of CFSSRV are:

routines

that

The resource manager/creater
The "voter"
The SCA connection manager

1.
2.
3.

Initialization.

Also, CFSSRV has "interface"
system modules and services

routines that are used by other
to the kernel
interfacing
for

routines.

Resource

Manager

The CFSSRV manages a hash table where CFS resources are kept. The
hash table contains "hash chains"TM built as collisions occur. Each
entry represents some resource, but the manager has no inherent
knowledge of the actual resource represented. Each resource block
has identifying information, state information, and a number of
co-routine addresses that are used when certain events occur.

There are two types of

resource blocks:

long blocks and short

blocks.

A long block is the same as a short block except that it has a bit
mask

representing

the

forks

the

system.

Resources

must

use

long block if they need to keep track of blocked forks, and need
to wake the forks when the resource is available. See figure 1.

Fach resource's name is used to compute its hash address and to
identify the resource. The name is seventy-two bits and is in the
second and third words of the hash packet. Also, a resource can be
a resource code used for various purposes including:
1.

Matching during voting.

As a mask during garbage collection and searching.

The first word of the name, the root code,

is usually a structure

name. It represents a resource class, such as files. The second
word of the name, the qualifier, distinguishes specific resources
within the class defined by the root name. Therefore, each type of
file resource has a unique qualifier that may be constructed based
on

the

resource

type.

For example, the file open token (representing the open state of
the file) is simply the file's index block address. The pair of
names defines a unique and unambiguous resource.

The resource requester must supply the various call-back routine
addresses. The resource manager has not already gathered any

information about the actions to be taken for each resource.
Therefore, when the requester builds a prototype resource packet,
it must fill in any co-routine addresses that it wants honored. In
general, the code that builds the prototype resource packet is
in CFSSRV and, therefore, is closely allied with the resource
manager itself. Call-back addresses need not be provided. In fact,
there are resources, for example, directory locks, that provide no

call-back co-routines, but rely entirely on the default mechanisms
of

the manager

and

the voter.

COMMON

FILE

SYSTEM
-4~

HSHLNK

LINK

HSHROT

ROOT CODE

WORD

HSHQAL

QUALIFIER

HSHTIM

TIME STAMP

HSFLAG

FLAGS

HSHCOD

RESOURCE CODE

HSHPST

CALLADDRESS
BACK
ON AVAILABLE

VOTE CODE AND COUNT

HSHNBT

NODE
BIT TABLE
CALL-BACK ON DEASSIGN

DEFERRED VOTE DATA

HSHMSK

DEFERRED WAIT MASK, OWNING FORK

HSHOPT

OPTIONA
DATA WORD
L
1

HSHOP1

OPTIONAL DATA WORD 2

HSHOKV

CALL-BACK WHEN VOTE OK

HSHCDA

CALL-BACK WHEN OPT DATA PRESENT

HSHFCT

FAIRNESS TIMER

HSHWTM

REVOTE WAIT TIME

HSHBKP

BACK POINTER

FORK BIT TABLE IF LONG PKT

MR-16411

Figure

The

resource

CFSGET,

local

The
It

but

The

the

manager

has

other

flags

access

manager

resource

Block

several

entry

entries

this

agent

word

level.

Resource

are

has

The

that
an

entry

may

delete

for

"access
or

points.

the

entering

places

manager

used

The

main

resource

and

new

type"
the

vote
old,

used

vote

known

the

hash

the

may

entry,

hash

record

processor

request
unused

conflict.

packets

entries

entry

processor).

responsible

only

determine
The

CFS

(exclusive

manager
is

use

table.

the

resource

this

field

removes

honored.

doing

VOTER

The

voter

The

two

parts.

agent

that

starts

that

processes

votes

behalf

manager.

The

agent

makes

The

voter

state
A

called

when

changes.

The

voter

request

one

vote

CFS

1is

replies.

systems.

Requests,

opcode

defined

See

votes,

.CFREP.

figure

called

the

use

the

may

EOF

Directory

values

for

created

opcode

have

optional

file

allocation

requests

and

whenever

its

that

CFSSRV

sends

.CFVOT.

optional

data.

Vote

data

Examples

replies

the

directory

use

other

the

resource

optional

resources
for

resource

VOTEW.

messages

are:

vote

Replies

supporting

resource

in-coming

the

resources.

data

SYSTEM

COMMON FILE
-5-

\l_

SCA HEADER

‘[:*
SCALEN

FLAGS, OPCODE, UNIQUE VOTE CODE

CFROT

ROOT CODE

CFQAL

QUALIFIER

CFTYP

TYPE OR ANSWER

CFDAT

OPT DATA

CFDT1

OPT DATA

CFDSTO

STR FREE COUNT FOR BITTABLE

CFDST1

TRANSACTION COUNT FOR BITTABLE

Figure

2 General Format of a CFS Message

MR-16412

In general, the two OPT data words have a value in one of the
words and a "transaction count"TM in the other. The transaction
count "age" the data so the voter can determine which reported
value is most current. Note that in a large CFS configuration
(more than two nodes), a voter can receive different values for
the optional data based on the resource's history. Optional data
processing is done through a callback address, and if that address

is not provided in the packet, any received optional data is
ignored.

The voter sends one vote request to each connected host and waits
for the replies. The interrupt level part of the voter uses the
vote count word in the resource packet to record replies. The
process level part of the voter examines this field to determine
when the vote is complete. Also, the flags word has a flag
(HSHYES)

that records a "no"

reply to the vote.

If the CFS configuration changes during the vote, a "vote restart"
flag is set in the resource block directing the voter to

restart

the vote. This is done instead of keeping state information about
the vote. The restarted vote implicitly cancels the other vote.

The vote processor (the companion routine to the voter) uses the
state information in the resource packet to determine how to
reply.

reply may be:

Unconditional yes. This can result

Unconditional

Timed no. This

Conditional

in a

resource being

released.

stored

no.

reply has

in the hash packet.
or

an accompanying

retry time

delayed vyes.

The vote processor may use one or more call-back routine in the
resource packet while deciding on the reply. For example, the
decision to reply "delayed yes" is made by the callback routine
when the vote is to be OKed. The co-routine may direct the vote
processor to change the reply from "unconditional yes" to "delayed
yes." This is typically the case for the file access token
resource.

SCA Connection Manager

The connection manager is responsible for maintaining the CFS
"host tables" and for interfacing to SCA. Its duties are to:
1.

Connect to all extant hosts at start-up

2.
3.

Connect to hosts newly on-line
Close duplicate connections

Recelve messages

Send messages and queue messages on credit failures
Resend on credit available

COMMON

The

FILE

connection

connections

SYSTEM

manager
other

maintains

CFS

four

CFSHST

contains

the

SCA

CFSHNM

contains

the

processor

CFHSTS

contains

the

state

CFSNAM

contains

the

DECnet

connect

a connection is opened, or
following interpretations apply.

CFSHST

-1,

this

CFSHNM

-1

and

waiting
All

other

The

connection

hosts,

When

connection

determine

serial

processors

was

not

name.

while

this

has

for

expected

unused

ever

connect

the

request

has

seen

because

previously

processor

the

other.

the

a
to

both

then

resources

the

time

OLDTAB

other,

CFS
One

seen

lost,

each

the

Then,

coordinated.

the

processors,

crash.
KLIPA

reload

conditions,

confiquration
be acquired
during
the

crash.

table

connected

each

whenever there
is
no CFS resources can
reconnection happens

processors

"pause"
a

OLDTAB.

time,

exists,

entry.

another

the

honored

therefore,

has

listener

listener.

placed

correctly

allow

that

cannot

were

number

connection

node

maintains

connection

each

believe

reconnection

established,

whether

processors

also

number

the

CFSHST<>0,

indicate

manager

OLDTAB.

describe

reply.

combinations

processor's
new

for

that

serial

While

tables

hosts.

Pause

time

the

monitors

change.
During the pause
or change state. Therefore,
pause
time,
neither
system

seconds.

Initialization
CFS

manages

section,
CFS

creates

them

into

process

The

its

own

buffer

the

buffer

memory.

other

side

CFS

CFSSRV
However,

proceed

routine

the

called.

the

CFS

make

network.

That

1is,

called.

This

buffer

pool

pages

Existing
monitor

distributed

eliminate
most

control.

and

called

complete

and

its

then

must

only

proceeds

sure

only
that

own

locking

proceed

1in

after

both

interlock

global

The

bulk

six

monitors).

services

all

The

changes

the

and,

DISC

and

File

System Changes

MEXEC,

that

were

most

and

second

time
and

initialized

CFSCSC
and

the

extended

code

allow

for

were inserting
some
reorganizing
to
system-wide
interlock.
For

know

means

and

PAGUTL

significant
the

various

changes

possibly,

PAGEM

managing

network.

CFSINI

bit

monitor

little

(PAGEM

set

table.

about

acquire

resource.

for

CFS

the

SCA

were

cases,

CFSSRV

except

changes

allow

the

both

on NOSKED as a
existing monitor services

the

when
SCA
SCA
when
SCA
called,
CFSINI

Services

dependency
CFS

done

by
been

initialization

a
of

that

"join"

part,

scattered

CFSINI
not yet

routines

workings

at
has

created.

the

DSKALC

creates

initialization

connections

makes

was

«called
CFSCSC

CFSJYN

Extensions

the

touching

CFS

proceeds

Many

calls

initialization

is
if

cannot

CFS

pool

Therefore,

CFSJYN

were

that

context.

initializes.
initializes.

join

pool

CFSSEC.

the

global

pre~-release

changes

Finally,

routines,

were

there

including

DIRECT.

to
are

MSTR,

Each

OFN acquired some new state. The word, SPT02 has CFS-specific
as well
as a
file access state
field.
This
field
reflects
the value of the file's state in the CFS data base and is
stored
in SPT02 as well for convenience and efficiency.

flags

Each

opened

assigned

file

has

least

one,

and

the

accessing

processor.

token

assigned

two

CFS

file

associated

with

it.

CFS

access

file

has

token

one

CFS

perhaps

Also,

each

resource.

resources

and

two,

CFS

resources

active

OFN

has

Therefore,

opened

one

access

least

COMMON

FILE

SYSTEM

-7-

The

file

resources

File Open Token.
the XB address.

Frozen Writer Token. This is defined by a qualifier word
containing the XB address + <KDSKAB 1>. This resource is
present whenever a file is opened for frozen write access
on this processor. This is an exclusive resource and

opened,

frozen,

therefore

The

OFN

resource

The

are:

may

This
This
or

is
is

defined by a qualifier
specified whether
the

word
file

of
is

thawed.

owned

only

one

processor.

Each

active

is:

file

access

token.

OFN

has

one

such

resource assigned.
It is defined by a qualifier word
containing the
file XB + <DSKAB 3>.
The
access of
the
file access token defines the types of
references that
processes on the owning processor may make. Therefore, if
the access token specifies "read only,"
then only read
references may be made to the data in the file section.
The

access

specified

the

access

token

also

present

SPTO02Z,

which is the field SPTST. This is so because many of the file and
memory management routines
(for example, the page fault handler)
need to make sure that the access is proper for the operation in
question. Finding the CFS resource each time is too costly, so the
CFS state is also kept in a per OFN data table. To minimize the
chance

error,

only

the

routines

CFSSRV

set

and

change

SPTST.

The access of an OFN is set or changed by the routine CFSAWT or
CFSAWP. The former sets the proper access but does not "reserve"
the resource to this processor. The latter both sets the access

and reserves it. CFSAWT is the most commonly used entry point.
CFSAWP is used by code that has to reference often over time and
does not want to incur another page fault if the access is removed
during

the

interval.

During

Bit

file

Examples

this

are:

opening

table

lookup and

Storage

Locations

modification.

Crucial

CFS

Table 1
may be

lists CSF storage locations. When doing dump analysis it
useful to check any or all of the
following
storage

locations.

CFS

Voter

Summary

VOTEW is the routine that sends out votes on behalf of the
resource manager when a resource has to change state. It sends out
votes, checks HSHVCT to see when all votes are in, and then

returns to the caller with the result of the
HSHYES is set, then a node vetoed the vote
granted.
vote

HSHVCT

packets

1is

incremented

interrupt

vote in HSHYES. If
and access is not

level

CFSRVT

arrive.

CFSRTV is the interrupt level routine that responds to incoming
vote requests. It is the routine responsible for determining the
kind of vote reply to return for this node. Table 2 lists possible
responses.

refers

Table

the

remote

system

"we"

refers

the

two-node

host

cluster.

system

and

"he"

COMMON

FILE

SYSTEM
-8

Table

Storage

for

CFS

Location

Description

CFSSTK

Stack

pointer

CFSSVP

Place

CFSSTR
CFSOFN

Space for STR transaction values
Points
to
where
the
OFN
table
resides

OFNCFS

Bit

save

mask

old

used

stack

DDMP

for

dumping

OFNs

VOTNUM

Vote

dialogue

Points

Count

hosts

CFSHCM

Count

full voting

SCAILK

Interrupt

SCAQ

Queue

unique

CFHSHT

CFSHCT

SCTAIL

End

CFSPCQ

Normal

CFSPQL

Long

VOTQ

Queue

hash

this

network

hosts

level

interlock

pending

messages

the

queue

hash-free

packet

number

table

HSTSIZ--:10

Max

CFSHST,HSTSIZ

Host

table

CFSHNM,HSTSIZ

Host

serial

queue

voting

hosts

packets

the

same

Cl,

full

reduced

CFHSTS ,HSTSI1Z

Status

DECnet

CFSSMQ,HSTS1Z

Send

CFSSQT,HSTSIZ

End

CFSSKC

Scheduler

node

queue
of

-1

listener

number

word

CEFNNAM,HSTSI1Z*2

CID

connection state

name

(waiting

for

credit)

queue
flag

for

testing

CFsCMC

Connection

CFGFSP

Count

CFGTLG

Count

CFGTSH

Count

short

CFBRDS

Count

broadcast

CFSENT ,HSTSIZ

Count

messages

sent

CFRECV,HSTSIZ

Count

messages

received

Table

long

block

have

block

set

have

set

for

HSHNBT

set

for

1
1l

unequal

No,
- No,

got "no") and
have .HTPLH

OK
release
release

unconditional

.HTPLH

unconditional

HTOEX

1l
0

and:

types

disagree

access

types

agree

OK
No, "D50 = retry
No, "D50 = retry
unconditional OK

types

(we

have

commit)

agree

has

larger

HSHUGD
HSHUGD

set
not

want

serial
but
set

number

.HTOEX
and

agree

are not voting (own it):
have .HTPLH and HSHKPH
have

either

access

.HTPLH

and

access

types

only

.HTOPM

agree

he want .HTOEX, or we have
access types disagree:

HSHCNT

not

HSHFCT

still

and

zero

(in

valid

HSHFCT

.HTOEX

use)
(fairness)

invalid

unconditional

No,

unconditional

aNeNeoNe]

- No,

HSHNBT

set

for

release

OK
for

release

and:

we have .HTPLH
(not upgrading)

access types disagree
he doesn't want .HTOEX

set

OkHFHOO

voting:

access

HSHCNT

,CFTYP

HSHNBT

commit)

access types disagree and:
we have larger serial number

unconditional

access

HSHDLY

node

voting:

HSHUGD

are

node

HSHCODs

HSHYES set (already
HSHUGD set and we

No,

for

release

-~
-

No, HSHNBT set for
unconditional OK

release

unconditional

unconditional
unconditional
unconditional

OK
OK
OK

are

(we
and

find

messages

HSHNBT

set

(release)

or
|

set
set

allocates

[

HSHDWT
CFVUC

allocates

block

RESPONSE

fails

CFS

count

ASGRES

CFSRTV

CONDITION

HSHLOK

management

calls

No,

HSHNBT

No,

difference

unconditional

set

for

=
OK

release

retry

time

(release)

SYSTEM

COMMON FILE

the co-routine
Note that if the resource is to be released,
file access tokens change
change the reply code. Currently,
reply from 0 to -1 (delayed commit).

can
the

Figure 3 shows how CFS fits into the TOPS 20 Monitor V6.1.
4

shows the hierarchy of

DIAG%

SCS%

Figure

Communication Architecture.

the MSCP Server within the System

USER
MONITOR

PHYMVR

PAGEM

DIAG

SCSJSY

PHYSIO

CFSSRV

PHYMSC

SCAMPI

PHYKLP

MONITOR
HARDWARE

IPA20

MR-16413

Figure 3

How CFS Fits

into

20 Monitor V6.1

the TOPS

CI/SCA ARCHITECTURE

Cl PORTS

SCA

(fi
MSCP

I
CFS

|
DECNET

XPORT

SYSAPS
27?2

SYSAPS (OR SYSTEM APPLICATIONS) ARE CLIENT OR PEER PROTOCOLS
Figure

SYSAPS Are Client or Peer Protocols

MA-16414

COMMON

FILE

SYSTEM
-10-

Figure

Control

Protocol

shows

how

shows

the

major

page

TOPS

number

monitor

look-up

modules

using

Server.

the

interact.
Mass

Storage

TOPS-20 CFS PEER PROTOCOL

USER

JSYS OR P-FAULT

FILE SYSTEM

JEN INTERLOCK

PAGE MGT

CFS/STRUCTURE

///////

FILE INTERLOCK

CFS "RESOURCES” (ONLY DISKS)
®

OPEN TYPE

FROZEN WRITE TOKEN

MSCP

SCA

FILE ACCESS TOKEN (OFN)

DIRECTORY LOCK

STRUCTURE MOUNT

Figure

TOPS~-20

CFS

Peer

MR-16415

Protocol

TOPS- 20 MSCP SERVER

MSCP (HOST)
SERVER

MSCP
SERVER

SEND DISK ID AND
PHYSICAL PAGE

I/O SYSTEM

NUMBER

READ PAGE NUMBER

DISK

PAGE

DRIVER

NUMBER

OF FILE

PROGRAM

2
3

TOPS-20 FUNCTIONS LIKE HSC50
USES MSCP PROTOCOL (LIKE HSC50)

LIMITED TO 24 SPINDLES ON A KL (SELECTABLE BY ADMINISTRATOR
)

CFS MECHANISMS

Figure

TOPS-20

MR-16416

MSCP

FILE

COMMON

SYSTEM

_ll_

CFS

MECHANISMS

Resource

Manager

CFS

1is

resource

manager.

Resources are locks that can represent any agreed upon entity.
Data transfer is done by other TOPS-20 facilities, not CFS.
Design allows

Implementation

future

resource definitions.

Devices

1IDs)

resourced

table

Resource

modes

Resources

Resource

for

bit

(72

Locks

supported.

are

updates

times

hold

Votes

Broadcast messages
Optional data
counters

Transaction
SCA

messages

New

microcode

To use a resource, such as a file, different ways of "locking" a
resource are needed. Table 3 describes attributes of the different
locking

mechanisms.

3 Attributes of Locking Mechanisms

Table

TYPES

Directory

Allocation Table

File Access

Write

Structure

ENQ

Owner

State

(ID)

Content

Name
Data

Level

States

Owned Locally

Reside
But

Exclusive

Read

None

Level

Locally,

Unowned

Voting
°

Purpose

Consensus

)

Votes

Voting may be restarted
- Configuration Change

establish or

- To

Timeout

Figure

from Votes

Yes

shows

examples of

changes

- Bit

table

Keeps

all

Algorithm
-

token.

messages

broadcast

EOF

the write

Numbers

Transaction

resource

identified by node and vote number

Answers
-

)

change ownership of

required

updates

systems

(disk allocation)

up~to-Date

Current-transaction-number < New-Transaction-Number.

Then

Use

new

data,

Set current-transaction-number = new-transaction-number.
Else

Ignore

data.

COMMON

FILE

SYSTEM
-12~

SYSTEM A

SYSTEM B
i

NEED

WRITE TOKEN

OK, BUT WAIT

ACCESS RIGHTS

SYSTEM A

SYSTEM B

DDMP RUNS TO OUTPUT

WRITE TOKEN

WAITING FOR

CHANGES FROM SYSTEM A

FINAL

MESSAGE

ACCESS RIGHTS

SYSTEM A

SYSTEM B

I AM DONE!

WRITE TOKEN

ACCESS RIGHTS

Figure

New

MicroCode

Write

Token

for

)

Set

)

Microcode

CST

TOPS-20

CFS

"Write-Bit"
to

indicate

causes

"unwritable

MR-16419

Examples

page

fault

writable.

program

page"

determines

course

writing

action

Constraints

ENQ on

Exclusive

Will

(no

)

IPCF

)

DBMS

—

)

file

fail

single

access)

intersystem

PID

system

other

systems

delivery mechanism

Files

Open

with

Exclusive

OPEN

fails

DECnet

OF%DUD

on
on

(don't

signal
other

update

system

systems

automatically)

into

TOPS20 V6.1 AC BLOCK 6 AND 7

INFORMATION

NEW OPR
_13_

Summary

CFS

fundamental

loosely

requirement

coupled

multiprocessor

Natural extension of TOPS-20 file access mechanisms
- No
- No

reprogramming
retraining

1limit

some

systems

only

Constraints

muli-user

applications

single

system

Homogeneous
Permits

HSC50

- Dual

shared

access

disks

ported MASSBUS disks

- Single ported MASSBUS disks via MSCP server
Eases expansion from single system environment

TOPS20 V6.1 AC BLOCK 6 AND 7 INFORMATION

The following are the locations and the contents of Saved Data
within ac blocks 6 and 7 after a crash.
AC

BLK

Location

Contents

Save VMS register
Save BR register
Save SC and FE register

10
11

Save PFW

(Page Fail Word)

Save AR register
Save ARX register

BLK

Location

Contents

Save Bad

NEW OPR

Save

IOPF

Save

IOP

Parity Word

(IO Page Fail Word

INFORMATION

Displaying Disk Drive Status

You can display the status of the disk drives with the SHOW STATUS
With this command, you can specify three
DISK-DRIVES command.
See
The default switch is /ALL.
switches /ALL, /FREE, /MOUNTED.
the

following.

Command

Description

OPR>SHOW STATUS DISK-DRIVES /ALL

/ALL switch displays both
FREE

and

drives

MOUNTED
their

disk

current

status.

OPR>SHOW STATUS DISK-DRIVES /FREE

/FREE switch displays all
disk
for

drives

example

OPR>SHOW STATUS DISK-DRIVES /MOUNTED

that

mounting.

are

FREE
See

/MOUNTED

switch

displays

that
drives
disk
those
are currently mounted and

being

accessed.

example

See

NEW

OPR

INFO
-14-

Example

The

/FREE

following

with

the

/FREE

OPR>SHOW

example

switch

STATUS

the

Show

Status

Disk-Drives

command

specified.

DISK-DRIVE

/FREE<RET>

OPR>

12:11:15

-—FREE

DISK

DRIVE

INFORMATION

DISK

Chan-Cont

Disk

Mount

Type

Mount

Drive

Status

Count

*RP06

Avail

Offline

. 1

Disk

Drive

Status

DRIVES
PACK

INFORMATION

Usage
Name

Options

*RPO7

, 0

Avail

Free

RP0O6

7,01

FIAT

7,07

Avail

(1/1)

RA60

,1
,254

Free

Avail

Offline

CHIP

(1/1)

RA81

7,08,18

Avail

Free

RA81

7,08,5

Avail

Offline

DRV18

(1/1)

NOTE

Channel
(*)

Example
The

the

/MOUNTED

OPR>SHOW

indicates

channel

potential

external

port.

/MOUNTED

following

with

indicates

STATUS

example

switch

the

Show

Status

Disk-Drive

Command

specified.

DISK~DRIVE

/MOUNTED<RET>

OPR>

12:11:28

-—-

Disk

Drive

MOUNTED
DISK

DRIVE

Status

DRIVES

INFORMATION

DISK

PACK

INFORMATION

Chan-Cont

Disk

Type

Mount

Drive

Mount

Status

Count

Name

RPO6

. 0

Avail

Mounted

*RP06

DALE

(1/1)

. 2

Avail

Mounted

RA81

AP20

7,07

(1/1)

Avail

Mounted

EXODUS

Usage

Options

(1/1)

NOTE

Channel
(*)

The

output

switch,

indicates

from

the

displays

SHOW

channel

potential

STATUS

the

following

The

type

external

DISK-DRIVES

information

pack.

Disk

command

for

disk

with

the

/ALL

drive

and

disk

Drive
1.

Type

RA60,

RA8l).

indicates

that

the

Chan-Cont

Drive

disk

Disk

Mount

The

Mount
who

Count

requested

The
a

RP06,

the

RP0O7,

type

potentially

status

count
the

shows

the

RP20,

drive

dual-ported.

controller,

mount

(RP04,

channel,

(off-line/free).
5.

(*)

drive

Status
——
The
(available/unavailable).
Status

drive

asterisk
disk

number.

Disk

port

and

drive

disk

drive

disk

drive

the

number

drive

and

the

these

are

users

structure.

Pack
6.

Name

The

name

number

Usage

Options

specified.

packs

of
in

the
the

structure

the

structure.

Any

usage

options,

1if

NEW OPR

INFO

-]15-

Displaying

Structure

Status

You. can display the status of structures with the SHOW STATUS
STRUCTURE command. With this command, you can specify three
switches, /ALL, /MOUNTED, /UNMOUNTED. STR = the name argument.
is /ALL.

The default switch

Command

Description

OPR>SHOW STATUS STRUCTURE /ALL

/ALL switch displays both

unmounted
and
mounted
their
and
structures
status.

current

OPR>SHOW STATUS STRUCTURE /MOUNTED

displays

switch

/MOUNTED

are

structures

all

currently mounted.
See example 3.

OPR>SHOW STATUS STRUCTURE /UNMOUNTED

OPR>SHOW STATUS STRUCTURE STR:

that
structures
for mounting.

all
free
See

example

The

str:

are

argument

name

displays information about
See
structure.
single
a
5.

example

Example

switch displays

/JUNMOUNTED

/MOUNTED

The following is an example of the SHOW STATUS STRUCTURE command

with the /MOUNTED switch specified.

OPR>SHOW STATUS STRUCTURE /MOUNTED <RET>
OPR>

—-- Structure status --

20:14:04

MOUNTED

STRUCTURES

ATTRIBUTES:

Mount

Avail

Shared

Avail

Shared

Foreign Regulated

Avail

Shared

Foreign Regulated

State

DALE

Mounted

AP2

Mounted

EXODUS EXODUS Mounted
Example

Primary

Structure

Public
##

/UNMOUNTED

The following
with

Accounting

Access

Name

AP20

File

Status

Count Count

Alias

is an example of the SHOW STATUS STRUCTURE command

the /UNMOUNTED

switch.

OPR>SHOW STATUS STRUCTURE /UNMOUNTED <RET>
OPR>

-- Structure

20:14:50
UNMOUNTED

status --—

STRUCTURES
ATTRIBUTES:

Alias

AP20
DUMP
FARK
SIXOH
WARPIG
KL2136
BASIC
CBL74
DLM62

Name

Mount

State

Mount

Count

File

Count

Status

Avail
Avail
Avail
Avail
Avail
Avail
Avail
Avail
Avail

Access

Shared
Shared
Shared
Shared
Shared
Shared
Shared
Shared
Shared

Domestic
Domestic
Domestic
Domestic
Domestic
Domestic
Domestic
Domestic
Domestic

Accounting

Regulated
Unregulated
Unregulated
Unregulated
Unregulated
Regulated
Regulated
Regulated
Regulated

NEW

OPR

INFO
~-]16-

EXAMPLE

The

/STR

following

with

is an example of the SHOW
str:name argument specified.

the

OPR>SHOW

STATUS

STRUCTURE

12:11:15

DALE:

-—-Structure

STATUS

STRUCTURE

command

<RET>

status

ATTRIBUTES:

File

Alias

Name

State

Count

DALE

Mounted

Disk
DISK

DRIVE

information

Count

pertaining

Status

Access

Accounting

Avail

Shared

mounted

DISK

Disk

Mount

Type

Drive

Status

Mount
Count

RPO6

Avail

Mounted

Users

who

have

MOUNTED

this

Public
##

structure

INFORMATION

Chan-Cont

Primary
Structure

Name

DALE

PACK

INFORMATION

Usage
Options
(1/1)

structure:

None.

Users

who

KOVALCIN,

Users

who

OPERATOR,

are

ACCESSING

this

structure:

WONG.,

are

CONNECTED

KOVALCIN,

this

The output from the SHOW STATUS
switch specifies the following.

Alias

Name

The

Mount

State

structure:

WONG.,.

alias

name

physical
The

STRUCTURE

for

name

the

status

command

with

the

/ALL

structure.

the

structure,

the

there

structure

one.

(mounted

unmounted)
.
4.

Mount

the

Count

The

number

users

who

requested

structure.

mount

structure.

File

Status

Count

Access

The

The
The

file

count

availability
access

the

structure.

structure

(SHARED/EXCLUSIVE,

DOMESTIC/FOREIGN)
.

Accounting

The

accounting

status

the

structure

(REGULATED/UNREGULATED)
.

The output from the SHOW STATUS STRUCTURE command with
name argument specified, displays the following.
1.

Structure

including
count,

information

alias,

name,

availability,

about

mount

access,

the

single

status,

mount

and

the

str:

structure,

count,

file

accounting.

Disk drive information for the drive(s)
on which the
structure is mounted.
This includes drive type, channel
controller drive, drive availability, mount status, mount
count, structure name, number of packs in the structure,
and usage options.

A list of users who have mounted, are accessing,
accessed" connection to the structure.
NOTE

you

need

remove

information

about

a structure
from the structure
tables,
use the UNDEFINE STRUCTURE command.
For
information on this command, refer to
the TOPS-20 Operator's Command
Reference Manual (AA-H600B-TM).

Language

"have

NEW

OPR

INFO

-17-

Examining

Mount

Requests

the

Queue

When a user submits a request for a tape or disk mount,
the
request is placed in a queue where it waits for your response to
either mount the tape or disk or delete the mount request.
To
examine the tape and disk mount gueue at any time,
do the

QUEUES

MOUNT-REQUESTS

the

SHOW

QUEUES

MOUNT-REQUESTS

—

Volume

The

name

tape

following.
OPR>SHOW

Status
The status of the request.
Type The type of request (tape or disk).
Dens
The density of the request.
Write
The write access requested.

See

example

The

output

command

gives

the

U d

following.

Req

O o~

Job#

The

User

Label

number

The

name

status

the

disk

volume.

request.

user's

job who

user.

label

status

made

the

tape

reguest.

(labeled

unlabeled).

The

status

column

displays

Waiting,

the

tape

following.

disk

request

waiting

satisfied.

tape

drive

name

currently

for

(for
a

example,

tape

Dismount,

tape

Aborted,

tape

mount

and
the

Example

The

MTA3:),

the

request

drive.

disk

being

request

dismounted.

was

deleted

aborted

the user has not given a dismount
logical tape drive (MTn:).

command

release

SHOW

QUEUES

MOUNT-REQUESTS

following

example

MOUNT-REQUESTS

command

requests

queue.

the

OPR>SHOW

QUEUES

that

display

uses

the

current

tape

and

disk

MOUNT-REQUESTS<RET>

OPR>

11:37:10

Volume

Status

Type

JCR

Waiting

Tape

Volume-set:

JCR
There

are

JCR

-— System Queues

Reqg#

Job#

User

Defa

Locked

143

JROSSELL

143

JROSSELL

Tape

unlabeled

Tape
Defa
JCR Tape is

the

Write

Waiting
Volume-set:
requests

Listing

Dens

Locked
labeled

queue

OPR>

Creating a Structure During Timesharing
During timesharing, you can create a structure

For

TOPS~20

information

CHECKD

about

Specification

the

CHECKD

by running
program,
refer

(AA-V918B-RM).
NOTE

When you create a structure, you destroy
any information that was on the disk
packs in the structure.
If you want to
save information from an old structure,
run DUMPER to save the files before you
create the new structure on the
same
disk packs.

CHECKD.
to the

NEW

INFO

OPR

-18-

Procedures

for

Get

Running

the

CHECKD.

number

formatted

any

disk

packs

needed

for

structure,

Place

the

drives

packs

Type

PUSH

Run

CHECKD.

asked

available

disk

drives

and

on-1line.
to

get

the

The

OPR

put

the

prompt.

following

example

the

CHECKD.

questions

@ena

$checkd
CHECKD>create

Enter
How

DECIMAL

unit

(NEW

alias:

many

FILE

SYSTEM

FOR)

dale

units

Channel,

DALE:

this

structure? 1
Controller, and Unit

numbers

pages

allocate

for

swapping?

10000

Number

pages

allocate

for

the

End

System?

Owner

name?

this

Front

a system structure for start-up? Yes
number of CPU started from this structure:

[DALE:

Mounted

[Dismounting

DALE:]

structure

DALE]

SDISABLE
OPR>MOUNT

STRUCTURE

str:

str=DALE

NOTE

this

system

steps

structure
other

than

through

full

CHECKD

step

used

KL-2060,

procedure.

Otherwise,

LARGE-DIRECTORIES

CHECKD>EXIT

$SDISABLE.
Type

POP

return

CHECKD

OPR

command

level,

NOTE

your

"subjob"

installation,

CONNECT

steps

through

your

the

you

CHECKD

PTYCON

only

need

subjob

and

perform

above.

installation

part

CFS

configuration, CHECKD may not be able to
set
the structure
exclusive.
If
this
happens, you must dismount the structure
from

the

other

systems

dismount

procedures

Massbus

Disk

Procedures

section.

using

for

Cluster

CFS
Mode

it.

perform

addition

CHECKD.

CHECKD>DISABLE

File

SYSTEM

Serial

Run

logical

950

CHECKD>Exit

for

0:1,0,1

Number

Use

the

systems

Diagnostic

the

2102

KLAD NAMING CONVENTIONS

INFO

DISABLING

V6.1 CI20

TopPs20 V6.0,

-19-

KLAD NAMING

CONVENTIONS

Due to the ‘operation of Common File System (CFS)
the system
structure of each KL host in the cluster cannot have the same name
in

its

support

home

blocks

requirements,

the

other

system

the

following

use

structures.

convention

naming

for multiple KLAD usage in a cluster environment.
bringing up a entire cluster under KLAD operation.)

Any

KLAD

changed

Although

future

intended

for

1st

KLAD

PS:

2nd

KLAD

PS1l:

3rd

KLAD

PS2:

4th

KLAD

PS3:

the

following.

TOPS20

version

releases will

6.1

cluster

supports

must

only

have

two

support more hosts within

For

(That
its

home

host

remote

defined

is,

when

blocks

cluster,

the cluster.

MIC files PS1.MIC, PS2.MIC, PS3.MIC are in the <F-S> directory and
should be used to change the name in the home blocks.
NOTES

reboot

the

incorporate

KLAD
the

monitor

change

needed

the

home

blocks.
A

carriage

return

the

BOOT

prompt

load the monitor no longer works. You
must type the structure name at the BOOT
prompt.
(That
is
PSl:return).
The
monitor, after it starts, also asks for
the

name

the

Clearly mark
after

the

TOPS20

V6.0

AND V6.1

TOPS20

V6.0

CI20

name

CI20

Disabling

system

the

pack

has

structure.

and

been

DISABLING

the

pack

cover

changed.

INFORMATION

Information

System Start-Up

The following procedure reloads the TOPS20 Version 6.0 Monitor on
a KL10
that TOTALLY
ignores
(both user-mode diagnostically and
from an on-line functional view) the CI20 option.
NOTE

This procedure starts at the BOOT prompt
(after you have gone through the KLI
dialog)!

Command
BOOT

Description

V10.0(201)

BOOT>/e

[BOOT:

<CR>

;TELL

LOADING]

[OK]

;AND

BOOTS

LOAD MONITR.EXE

ENTER EDDT

EDDT

klpini+l/

CONI

574,T1

ret

<CR>

sysgo$go
[PS

;REPLACE

THE CONI WITH A RET

;START-UP MONITOR AT SYSGO

MOUNTED]
NO

When you start up a KL10 as above, a
system reload has to be scheduled to
return the CI20 option.

TOPS20

V6.0,

V6.1

CI20

DISABLING

INFO

-20-

TOPS20
The

V6.0

CI20

following

Monitor
from an

Disabling

procedure

within

creates

Monitr.Exe

copy

that
TOTALLY
ignores
(both
on-line functional view) the

Commands

DDT

the

TOPS20

6.0

and

Description

@enable <CR>
$get ps:<systemd>monitr.exe

$ddt

Version

user-mode diagnostically
CI20 option.

;ENABLE PRIVS
;GET A COPY OF THE

<CR>

;CALL

klpini+l/

CONI

574,T1

ret

~Z
$save monitr-noci20.exe
MONITR-NOCI20.EXE.l1

<CR>

MONITOR

IN DDT

;REPLACE

THE

CONI

WITH

RET

;CONTROL Z TO GET OUT OF DDT
;SAVE IT WITH A NEW NAME

<CR>

Saved

$
NOTE

When

you

"NOCI20"

start

monitor,

MONITR.EXE)

return
TOPS20
The
a

V6.1

from

CI20

following

KL10

the

CI20

Disabling

procedure

that

has

TOTALLY

on-line

KL10

with

reload

this

(using

scheduled

option.

System

reloads

ignores

functional

system

the

Start-Up
TOPS20

(both

view)

Version

user-mode

the

CI20

6.1

Monitor

diagnostically

on
and

option.

NOTE

This

procedure

(after

you

starts

have

gone

the

BOOT

through

prompt

the

KLI

dialog)!
Command
BOOT

Description

V11.0(306)

BOOT>/e

[BOOT:

<CR>

;TELL

LOADING]

[OK]

;AND

BOOTS

ENTER

LOAD

MONITR.EXE

EDDT

noklip

<CR>

;REPLACE THE ZERO WITH A ONE
; START-UP MONITOR AT SYSGO

sysgo$go
[UPS

MOUNTED]
NOTE

When

you

system
return

TOPS20

The

V6.1

CI20

following

Monitor
from an

start

reload
the

KL10

CI20

Disabling

procedure

up
has

Within

creates

above,

a
to

Monitr.Exe

copy

that
TOTALLY
ignores
(both
on-line functional view)
the

Command

Version

6.1

user-mode
diagnostically
CI20 option.

the

TOPS20

and

Description

@enable <CR>
Sget ps:<systemd>monitr.exe

$ddt

scheduled

option.

; ENABLE PRIVS
;GET A COPY OF THE MONITOR
;CALL IN DDT

<CR>

DDT

noklip/

<KCR>

$save monitr-noci20.exe
MONITR-NOCIZ20.EXE.1l

<CR>

;REPLACE

THE

;CONTROL

;SAVE

ZERO

TO GET

Saved

$
NOTE

When

you

"NOCI20"

start

monitor,

MONITR.EXE)
return

the

has
CI20

KL10

system
be

option.

WITH

with

reload

this
(using

scheduled

ONE

OUT OF DDT

IT WITH A NEW NAME

UNDER TOPS-20

CI20 DIAGNOSTICS
-21-

CI20 USER MODE DIAGNOSTICS PROCEDURES UNDER TOPS-20

Cluster Rules for Setting CI20 to Unavailable or Available
1.

CI20

option

may

configuration at

any

Set

Unavailable

time.

acknowledgment

before

Unavailable.

Make

sure

you

under

you

set

any

have

the

cluster

permission

CIAZ20

You can only use the Set Available command to the CI20
option
when
it
is
the
only
host
wup
and
"running"
("running"TM means TOPS20 monitor) in that cluster. Failure

this

cause

the

system

crash.

See

step

If rule 2 is
"running"),

true
you
schedule a

not
and

available,
the CI20 option

Set

the

Unavailable.

the

(that is, if more than one host is
want
to
set
the
CI20
option
system reload on the CPU that has

following
procedure
to
set
the
CI20
for
Diagnostics (with the CI20 in the Unavailable State).
Use

procedure,

User

Mode

Diagnostic

set

the

diagnostic.
OPR>SET

port
Type

PORT

Restrictions

the

wunavailable

First,

User

make

before

Mode

sure

running

you

the

following.

UNAVAILABLE

(CR)

WARNING

The

program

message)

need

dismount

OPR
to

those

Massbus

notifies
which

dismounted.

Disk

you

disk

Have

structures.

Cluster

Mode

(with

structures

operations
Or,

see

Diagnostic

section for dismount procedures. When
the structures are dismounted you can
respond to the message number with a
proceed response. Type the following.

OPR>RESPOND

The

PROCEED

(CR)

message number)
OPR then
by stopping the CI20.

sets

the

port

unavailable

Mount the KLAD pack via OPR
(Privileged Job). Load the
KLAD pack on an available drive, and lock the port switch
(if drive
is
dual
ported
between systems
in
a
CFS
configuration) on the system where you will run the CI20
diags.

Type

the

following.

PSx:
or
ID:PS:
KLAD: /STRUCTURE
(where"x" = 1, 2, or 3, derived from KLAD20 naming
convention) OPR mounts your structure and calls it KLAD.

OPR>MOUNT

STRUCTURE

OPR>EXIT

(CR)

OPR

and

exits

returns

the

monitor

prompt.

CI20

DIAGNOSTICS

UNDER TOPS-20

-22-

Mount

the

KLAD

<2-Diagnostic>

SMOUNT

STRUCTURE

your

area

KLAD:

user

Jjob.

run

D20MON.

and

Connect
Type

the

KLAD

the

following.

the

(CR)

SCONNECT KLAD:<2-DIAGNOSTICS>
$RUN D20MON (CR)

(CR)

NOTE

DFPTA.A10

User

and

Mode

DFCIA.Al10

with

both

the

run

under

supervision

D20OMON.
DFCIA.A10

requires

called
C120.ULD
microcode file).
DFCIA

loads

control

when

you

wish

type

CTRL

the

Monitor

Also
user

being

D20OMON

Start

Return

Set

the

CI20

there

OPR

KLAD:

(CR)
KLAD

and

switch

that

"no"

into

NOT

CRONIC

Both

run

under

Allows

setting

you

really

the

system

the

was

the

KLAD

the

pack

from

system.

(CR)

the

KLAD

original

after

Job.

pack.
position.

running

See

Cluster

user-mode
Rules.

(CR)

Available

can

its

AVAILABLE

example

Port

response

remove
to

TOPS-20

response
you

from

Available

OPR>RESPOND

"yes"

The

REMOVAL

Privileged

after

another

KLAD:

drive

PORT

CI20

dismount

Port

OPR>SET

and

(the

state).

system) .
do

and
under

active

built

diagnostic,

port

from

<6>

typing:

the

following

program

STRUCTURE

down

Diagnostics

The

run

timesharing

DFCIC.EXE

the
by

and

OPR>DISMOUNT

Spin

back

exerciser)

Available

STRUCTURE

prompt,

you

supervision.

OPR

)

D20MON

gets

CI20

operating

Jjob

$DISMOUNT
5.

the

and

running
user

D20MON'S

diagnostic.

responder)

responder

(HSCS50's

from

This

the

general

HSC50'S

via

the

(KL's

while

DFCIB.EXE

your

exit

twice.

file

diagnostic

prompt.

(KL's

mode

serving

After

start

DFCIB.EXE

DFCIC.EXE

CI20.ULD

you

additional

(C120

the

question

Port

Procedure

currently

aborts

the

SET

schedule

system

Notice

running

"Yes

PORT

asked

the

Available.

—-

the

CI?

No"

AVAILABLE

command

reload.

either:
port

answered
another

Cluster

then

the

OPR>res

(CR)

¥DECSYSTEM-20

NOT

reloaded

"no"

and

TOPS20

following

RUNNING

you

and

started.

were

Monitor

lying

"running"

and

there

within

happens:

(with

CRFRCN

BUGHLT)

the

DFCIB
-23-

DFCIB (KL-EXERCISER) INFORMATION

the KL-EXERCISER
The following information is how to run
E) between two KL10s
(DFGIB.EXE) with the KL-RESPONDER (DFCIC.EX
same CI).
configured in a cluster (linked via the
DFCIB.EXE Rules

DFCIB can exercise other CI nodes whether they are KL10

DFCIB only exercises these other nodes 1f they were

you
You can select more than one CI node at a time, BUT
can NOT select the KL10 node from which you are running

KL10 in the
You can start up a second DFCIB on the other
from each DFCIB

HSC50.

selected via the SELECT command.

the

program DFCIB.

cluster and then select the opposite KL10
running on each host.

After it 1is
DFCIC.EXE is the KL's Responder program.
the program does NOT
started and while it is running,

out

messages.

The HSC50 has 1its responder puilt into Cronic (HSC50's

command prompting is
DFCIB use the COMMAND JSYS, so EXEC.

with a KL10 and
Certain tests are designed to run only
request ALL TESTS to

operating system).

available as it is under TOPS20's

others to run with an HSC50. If you
see a
be run against the selected nodes, expect to
message stating that a test may not run against a
selected

node.

NOTE

The following is a description of the
HELP text from DFCIB.HLP. It is in a
different

format than you would

see on

the system. For your viewing convenience
see the following table.

Table 4

Command

*ACCEPT

DFCIB Commands

Description

Used only for writing your own
tests.
to

It causes a connection

accepted

exerciser

*BUILD

from

another

program.

Used only for writing your own

tests. It allows the building
later
for
packets
CTP
of
the SEND
transmission wusing
command.

*CLEAR

The

complement

see

either

the

SET

LOGGING

command. For more information,
CLEAR

CLEAR SWITCH.

*CLEAR LOGGING

Used to close the log file,

which is opened by the SET
LOGGING command. The log file
receives a copy of all output
directed to the terminal.

DFCIB
—-24-

Table

*CLEAR

SWITCH

DFCIB

Commands

(Cont)

Used

the

switches.

clear

complement
command.

settings
the

SHOW

one
the

The

current

switch

are

displayed

Ring

testing

error

PALL

TRACE

onh

the

terminal

bell

errors.

bytes

(TYPE

test

for

specified

executed.

your

own

connection

the

command).
messages

writing

causes

made

any

detected.

trace

each
only

when

all

buffer

The

are:

Stop

tests.

with

command.

BELL

of
the

SWITCH

HALT

Used

more
is

SET

SWITCHES

switches

*CONNECT

last

the

node

SELECT

command.

*DDT

Used

only

for

debugging

diagnostic.

*DESELECT

DDT

loaded.

not

loaded

Used

node

selection

one

nodes

SHOW
command.
Used

only

*DESELECT

see

use

writing

your

The

complement
command.

the

broken.

SELECT

followed

or more decimal node
separated
by
commas.

See

what

nodes

are

selected,
use
the
SELECTED-NODES command.

*HELP

The

HELP

command

questicn
user

own

causes

NODE

numbers,

created

command

by one
numbers

selected,

connection
CONNECT

SELECTED-NODES

for

tests.,

commas.

are

the

DDT

it.

node

separated

*DISCONNECT

load

testing.

decimal
what

transferred

disable

for

followed

the

causes

execution

mark

list

{?)

SHOW

followed

provides

the

entries

the

on-line help
file.
HELP
followed
by
the
subject
provides
the
user
a
short
message

subject.

Help

specified

help

the

selected

with

provides

the

message

using

subject
user

the

HELP

your

own

command.

*LISTEN

Used

only

tests.

*MAP-BUFFER

from

any

Used

only

tests.

writing

causes

for

the

CTP

program

connection

node.
for

internal
of

for

listen

writing

causes

your

map

own
an

buffer

bytes

of the number
specified
in
the

command.

*PAUSE

Normally

writing
causes

used

your
the

for
the
furnished

only

own

program

number

the

for

tests.

"sleep"

seconds

command.

DFCIB
-25-

Table 4

DFCIB Commands {(Cont)

*QUIT

Causes the diagnostic to exit.

*READ

Used only for writing your own
a

followed

tests.

keyword, DATAGRAM or MESSAGE,
indicating the read action.

*REQUEST-DATA

Normally used only for writing
tests.

your own

used

request DMA transfer data
RESPONDER-NODE

either
in

*REQUEUE

specified

EXERCISER-NODE,

from

command.

the

Normally used only for writing
used
to be

buffer
command

tests.

own

your

causes

the
by
freed for

READ
later

use.

*RETURN-MESSAGE

Used only for writing your own
It

tests.

diagnostic

as would

*RUN

causes

the

message

return

responder

program.

Used to start the execution of

a test or group of tests. The
format of the RUN command is:
RUN

/PASSES:n

test/ITERATIONS:n

switch
/PASSES
optional
The
must be specified before any
test name, and specifies how
many passes of the test to
of
number
default
The
run.
isn't
/PASSES
if
passes
specified

A test name or test script
by
separated
next,
comes
be
may
test
Each
commas.
times
of
number
a
executed
using the optional /ITERATIONS
switch. The default number of
interations is 1, except for
the EXERCISER and TST99, for
iteration
default
the
which
count

100.

no
with
command
arguments is used to rerun the

last

RUN

successfully

entered

RUN

the

SHOW

command. The tests are stored
in the run table, which can be

displayed

using

RUN-TABLE

command.

A sample

run command would be

/PASSES:100
DFCIB>RUN
BASIC/ITER:10, MESSAGE/ITER:5,
COUNTER

runs 100 passes, where
10
of
consists
pass
Basic
the
of
iterations
Connect/Disconnect Tests, five

This
each

Message
the
of
iterations
one
by
followed
Tests,
iteration of

the

Counter

Test.

DFCIB
-26-

Table

DFCIB

Commands

For

(Cont)

information

on RUN command
refer
to
any
of
the
following
later
in
this
table.

qualifiers,

ALL-TESTS

DATA-TESTS

BASIC-TESTS

DEFAULT

BUFFER-TESTS

EXERCISER

COUNTER-TEST

MESSAGE-TESTS

For

information

test

qualifiers,

the

RUN

command

refer

following

later

any

this

table.
TSTO1

*SELECT

TSTO2

TST10

TST13

TST14

TST30

TST32

TSTS50

TST33

TST51

TST40

TST52

TST53

TST54

TST55

TST56

TST57

TST58

TST59

TST80

select

Used

testing.
node

It
The

SET

*SET

LOGGING

the

LOGGING

SET

PATH-SELECTION

SWITCH

SET

TIME-OUT

SET

TYPE-OUT-LINE-LIMIT

This

command

filename

into

terminal

output

log

file,
diagnostic
command

followed
is

all

placed.

The

filename

the

exit

with

the

the
QUIT

use

the

CLEAR

command.

PATH-SELECTTON

lect
Path

which

either

LOGGING

cither

automatic

selection

for

all

CTP

packets

sent

over

the

CI.

The

default

use

which

monitor

pick

causing
split

CTP
more

across

both

Used

set

switches.
of

the

path

lets
path

the

packets

use,

less

evenly

paths.

one

CLEAR

the

is the complement
SWITCH
command.
switch
settings

The

current

are

displayed

SWITCHES

path

automatic

selection,

SWITCH

various

any

SET

default

*SET

SHOW

For

see

DSK:DFCIB.LOG.

*SET

the

are

command.

options,

information
following.

by
by

nodes

activate

program

CTP

followed

with

SELECTED~NODES
Used

for

Separated

selected

displayed

TST99

node

1is

numbers

commas.

*SET

TST11

TST12
TST31

with

command.

the

The

SHOW

switches

are:

BELL

Ring

HALT

Stop

testing

error

PALL

TRACE

the

terminal

bell

errors.

each

(TYPE
trace

test

any

detected.

all

buffer

when

bytes

command).
messages

executed.

DFCIB
-27-

Table

*SET

(Cont)

DFCIB Commands

TIME-OUT

Followed by the maximum number
any
for
of seconds to wait

to complete. The default
time out is five seconds. The
command is used to disply the

event

time out value.

current
*SET TYPE-OUT-LINE~LIMIT

Used
lines
the

*SHOW

of
number
the
set
to
that are displayed with

for

used

only

your

own

Used

display

program

TYPE

The

command.

TYPE

command

writing

tests.

various

For

settings.

information see SHOW followed
by any of the following.
ALL

CONNECTION-DATA-OF-ALL-NODES
COUNTERS

EVENT-QUEUE

ID-OF-CONNECTED-NODE

LOCAL-NODE-NUMBER
MAPPED-BUFFER-NAME

MINIMUM-BUFFER-SIZED
PATH-STATUS-OF-NODE

POLL-STATUS-OF-CONNECTED-NODE
RUN-TABLE

SELECTED-NODES

STATUS-OF~CONNECTED-NODE
SWITCHES

TIME-OUT

*SHOW

ALL-PROGRAM-PARAMETERS

the

of
equivalent
SHOW commands.

the
Is
following

LOCAL-NODE-NUMBER

PATH-SELECTION
SELECTED-NODES
TIME-OUT
RUN-TABLE

SWITCHES

The other SHOW commands have
to do with writing your own
test or getting status of this
node or other nodes on the CI.
information,

For more

any

followed

see SHOW

the

commands.
*SHOW

CONNECTION-DATA-OF-ALL-NODES

Requests connect data from all
and
CI
the
on
nodes
other
display various node-specific
data,

and
and

*SHOW

COUNTERS

on.,.

Causes

EVENT-QUEUE

buffer

the

port

type

sizes,

counters

be read and displayed for this
node

*SHOW

software

such

versions,

the

CI.

Used only when writing your
own tests and shows the status

of the event queue for
with
made
connection

the
the

ACCEPT or CONNECT commands.
*SHOW

ID-OF-CONNECTED-NODE

Used only for writing your own
tests and shows the connect ID

the node connected with the

CONNECT or
*SHOW

LOCAL-NODE-NUMBER

LISTEN

the
Shows
to
assigned

diagnostic

commands.

number
node
CI
the
system
the

running on.

DFCIB
-28-

Table

*SHOW

DFCIB

Commands

MAPPED-BUFFER-NAME

Used

(Cont)

only

for

and

tests

*SHOW

MINIMUM-BUFFER-SIZES

used

buffer

the

MAP-BUFFER

Shows

PATH-SELECTION

writing

the

name

what

the

datagram

minimum

*SHOW

PATH-STATUS-OF-NODE

POLL-STATUS-OF-CONNECTED

which

paths

were

selected

with

the

SET

the

current

that

node.

Used

only

the

node

monitor

for

command.

what

tests.

RUN-TABLE

shows

knows

*SHOW

will

connected

used

run

SELECTED-NODES

RUN

Displays
were

another

RUN

with

which

nodes

*SHOW

STATUS-OF-CONNECTED-NODE

nodes

from

Used

and

command

for

writing

tests.

displays

connection

the

CI
The

the

removes

testing.

the

selects

testing

NODE

nodes

testing.

command

for

DESELECT

details.

for

NODE

specified.

selected

SELECT

the

1list

given

for

with

This

tests/qualifiers
See

node.

tests

were

command.

command

own

monitor

status

which

RUN

paths

your

what

poll

currently

last

writing

the

Displays

number,

determines

status

shows

qualifiers

*SHOW

sizes

messages.

Displays

Followed

NODE

determines

buffer

and

PATH-SELECTION

*SHOW

own

display

command.

monitor

is
for

your

returned

CONNECT

vyour
the

own

status

made

with

LISTEN

commands.

*SHOW

SWITCHES

Used

display

settings.

The

command

used

CLEAR

SWITCH

the

is
switches.

BELL

Ring

Stop

testing

error

PALL

TRACE

Displays

The

the

terminal

bell

errors.

each

TIME-OUT

or
The

used

are:

(TYPE
trace

test

the

when

any

detected.

all

buffer

*SHOW

one

switches.

HALT

switch

SWITCH

set

command

clear

switches

the

SET
to

time

bytes

command).
messages

executed.

wait

for

any

complete.

The

default

seconds

event

time

out

is five seconds.
This
is used to change the
time out value.

command
current

DFCIB

Table

DFCIB

Commands

(Cont)

Used

*TAKE

cause

commands

file

passed

program.
The default
is DSK:DFCIB.CMD. For
if

the

following

file

SELECT

called

NODE

the

filename
example,

commands

were

TEST15.CMD:

SET LOGGING TEST15.LOG
RUN/PASS:3 BUFFER~TESTS/ITER:10
y COUNTER-TEST
QUIT

The

command

TAKE

node

file

called

opened,

passes

tests

program

Used

TEST15

causes

selected,

TEST15.LOG

three

specified
the

log

the

run,

and

exit.

writing
your
own
It is followed by one
tests.
of the following
to display
program
of
contents
the

*TYPE

for

buffers.

CTPPKT

MBUF4

DBUF1
DBUF2

MBUF5
MBUF®6
RETURNED-BUFFER
SAVCTP

DBUF 3
DBUF4
DBUF5

SAVREQ

DBUF®6

SAVRSP

MAPPED-BUFFER

SAVSCS

MBUF1

SCSCMD

MBUF 2
MBUF3

SCSRSP

SCSEVT

Used only for writing your
tests. It is used to wait
one of the following.

*WAIT

CONNECTION-STATUS

STATE,

one of

the

following.

ACCEPT-REQUEST-SENT

CLOSED

CONNECT-REQUEST-RECEIVED

CONNECT-REQUEST-SENT

CONNECT-RESPONSE-RECEIVED

CONNECTION~-IS-OPEN
DISCONNECT-REQUEST-SENT

DISCONNECT-REQUEST~-RECEIVED
DISCONNECT-RESPONSE-RECEIVED

LISTENING

WAITING-FOR-DISCONNECT-RESPONSE

REJECT-REQUEST-SENT

CONNECTION-STATUS

FLAG,

of one of

the

EVENT-PENDING-FLAG

one

the

following.

DMA-TRANSFER-COMPLETE
MESSAGE-AVAILABLE-FLAG

DATAGRAM-AVAILABLE-FLAG

EVENT-STATUS,

own
for

following.

CONNECT-TO-LISTEN

CONNECTION-WAS—-ACCEPTED

CONNECTION-WAS-REJECTED

CREDIT-IS-AVAILABLE

LITTLE-CREDIT-LEFT

MAINT-DATA-XFER-COMPLETE

MESSAGE-DATAGRAM-SEND-COMPLETE

NODE-CAME-ONLINE

NODE~-WENT-OFFLINE

OK-TO-SEND-DATA

PORT-BROKE~-CONNECTION

REMOTE-INITIATED-DISCONNECT

VC-BROKEN

Run

Command

*DEFAULT

Qualifiers*

Runs

the

same

tests

ALL-TESTS qualifier,

except

the

available
nodes
all
selects
See
first.
testing
for
of the
list
a
ALL-TESTS for
tests run by that qualifier.

* The remaining commands in this table are RUN command qualifiers.
They are used with the RUN command in this format: RUN DEFAULT.

DFCIB
-30-

Table

DFCIB Commands

*ALL-TESTS

TSTO01
TST02

Runs

Connect/Disconnect
Function

Set

TST10

Basic

TST1l1

Message

Test

Count

TST12

Message

Test

Repeat

TST13

Message

Test

Delay

TST14

Message

Test

Size

TST30

Basic

TST31

Datagram

Test

Size

TST32

Datagram

Test

Repeat

TST33

Repeat

TST40
TST50

Datagram Test Under Message
Buffer Map and Buffer Unmap

"TST51

Buffer

tests.

Test

Datagram

and

following

Test

Request/Response

Message

(Cont)

the

Four

3,
4,

Data

Four

Types

Data

Four

Data

Maximum,

Types
Types
Four

Data

Types

Test

Delay

Four
3,

Data

Four

Map,

Controller

TST52

Buffer

Mpa,

Buffer

Move,

TST53

Buffer

Move

(Delay

TST54

(Repeat

Types

Data

Types

Service
Test

Read,

Buffer

Unmap

Buffer

Move

TST55

Buffer

Move

(Variable

TST56

Buffer

Move

(Size

TST57
TST58

Buffer
Buffer

Move
Move

(Multiple 1)
(Exerciser-Responder

Write)

HSC50

TST59

Buffer

Move

(Exerciser-Responder

Write)

TOPS-10/20/VMS

TST80

Read

Counter

3)
Length)

Test

*BASIC-TESTS

Runs

TSTO01l

Connect/Disconnect

TST02

Function

Set

Request/Response

*BUFFER-TESTS
TST50

Runs

Buffer

Map

and

the

following

tests.

following

tests.

Test

Buffer

Unmap

TST51

Buffer

Map,

Controller

TST52

Buffer

Map,

Buffer

Move,

TST53

Buffer

Move

(Delay

TST54

(Repeat

Test
the

Test

Read,

Buffer

Unmap

Buffer

Move

TST55

Buffer

Move

(Variable

TST56

Buffer

Move

(Size

TST57

Buffer

Move

(Multiple

TST58

Buffer

Move

(Exerciser-Responder

Write)

HSC50

TST59

Buffer

Move

(Exerciser-Responder

Write)

TOPS-10/20/VMS

Length)

1)
1)

*COUNTER-TEST
TST80
*DATA

Read

Counter

Basic

Datagram

Test

Size

TST32

Datagram

Test

Repeat

TST33

Repeat

TST40

Datagram

Delay

Test

Runs

the

following

tests.

Data

Four

Under

Data

Message

Message
Test

Types

Data

Types

Service

Runs

Basic

the

following

tests.

Test

TST11l

Message

TST12

Message

Test

Repeat

TST13

Message

Test

Delay

Message

Test

Size

TST14

test.

Four
3,

*MESSAGE-TESTS

TST10

following

Test

TST31

and

the

Test

TESTS

TST30

Runs

Count

Four

4,
1

Data

Four

Types

Data

Maximum,

Types

Types
Four

Data

Types

*TSTO1
TST01

Connect/Disconnect

verifies

proper

status

Test:

Connects

(Event

Pending,

Connection

Connection Open). The test
and verifies proper status

the

selected

then disconnects from
(Connection Closed).

node

and

Accepted,

and

selected

node

selected

node

the

*TSTO02
TST02
and
The

Function

verifies

proper

test

proper

then

status.

Set

Request/Response:

proper

status

status.

verified.

The

disconnects

Connects

Function

Response

from

the

Set

message

the

Request

sent

and

read

and

verified.

selected

node

and

verifies

DFCIB
-31-

Table 4

DFCIB Commands (Cont)

*TST10

node and
TST10 Basic Message Test: Connects to the selected
with a word
verifies proper status. A Generate Message Request The
Response
verified.
status
count of 0 is sent and proper
message is read and verified. The test then disconnects from the
selected node and verifies proper status.
*TST11

type, a
TST11 Message Test Count 4, Four Data Types: For each data
buffer fill

and
Generate Message Request with a word count of 4 status
verified.
data of one of the data types is sent and proper
The Response message is read and verified. The data field is
verified.

*TST12

of the data
TST12 Message Test Repeat 3, Four Data Types: For each
count of 4 and
types, a Generate Message request with a wordcount
of 3 (which
buffer fill data of the data type and a repeatand proper
status
generates four response messages) 1s sent
verified. Each response message is read and verified. The data
field

is verified.

*TST13

data type A
TST13 Message Test Delay 4, Four Data Types: For each
of 4 and buffer fill
Generate Message request with a word count
status
proper
and
sent
is
)
seconds
(2
4
of
count
data and a delay
verified. The response message is read and verified. The data
field is verified as 4 bytes of 375.
*TST14

Types: For each
TST14 Message Test Size 1 to Maximum, Four aData
variable byte count
data type, a Generate Message Request with
fill data is
buffer
and
responder
the
in
of 1 to maximum supported
messages are read
sent and proper status verified. The Response
number of
correct
the
as
verified
is
field
data
and verified. The
bytes of

fill

data.

*TST30

selected node and
TST30 Basic Datagram Test: Connects to the Request
with a word
verifies proper status. A Generate Datagram
The Response
count of 0 is sent and proper status verified.
ts from the
disconnec
then
test
The
verified.
and
read
is
Datagram
selected node and verifies proper status.
*TST31

type, a
TST31 Datagram Test Size 4, Four Data Types: For each data
buffer fill

of 4 and
Generate Datagram Request with a word count
data is sent and proper status verified. The Response Datagram is
read and verified. The data field is verified.
*TST32

data type,
TST32 Datagram Test Repeat 3, Four Data Types: For each
buffer fill
a Generate Datagram Request with a byte count of 4 and
response
four
generates
(which
3
of
count
repeat
data and a
Each Response
datagrams) is sent and proper status verified.
verified.
is
field
data
The
verified.
and
read
is
Datagram
*TST33

For each
TST33 Datagram Test Repest and Delay 4, Four Data Types:
a word count of 4 and
data type, a Generate Datagram Request with
and
sent
is
seconds)
(2
4
of
count
buffer fill data and a delay
proper status verified. The Response Datagram 1s read and
verified. The data field is verified as 4 bytes of 375.
*TST40

Datagram
TST40 Datagram Test Under Message Service: A Generate
26, buffer fill

of
Request under Message Service with a word count
and a repeat count of
data of 201, a delay count of 4 (2 seconds),
1 is sent and proper status verfied. The Reponse Datagram is read
and verified. The data field is verified as 4 bytes of 201.

DFCIB
~32-~

Table

DFCIB

Commands

(Cont)

*TST50
TST50

Buffer

real

buffer

bytes

read
sent

and

Map

and

with

sent

Buffer

buffer

and

verified.

and

proper

Test:

377

and

status

Buffer

status

verified.

Unmap

fill

proper

Buffer

verified.

Unmap

The

Request

length

The

response

for

the

Request

verified.

Map

buffer

576

buffer

same

Response

for

message

Message

read

each

data

buffer

fill

*TSTS1
TST51

Buffer

type,

and

buffer

Map,

Buffer

verfied.

Controller

Map

Request

length

The

Response

bytes

Buffer

Unmap

status

fill

Request

verified.

Buffer

real

Unmap:

For

buffer

with

sent

and

proper

read and
verified.
exerciser), and bytes of 125

is mapped
(in the
the buffer.
Data is

into

bytes

Message

buffer

contain

Read,

for

four

read,

data.

for

The

and

The

the

buffer

internal

buffer

responder

Response

buffer

Message

read

internal

are written
verified
to
unmapped.

sent

and

status

and

proper

verified.

*TST52
TST52

Buffer

for

real

bytes

read

Map,

buffer

sent

and

exerciser

Buffer

Unmap:

fill

252

proper

bytes

Buffer

Command

delay,

size of
is read

Move,

buffer

and

verified.

and

with

Buffer

with

status

internal

125

issued

repeat

are

for

Buffer

and

verified.

buffer

Map

buffer

The

Request

length

Response

mapped

written

count,

Message

the

into
the
buffer.
A
Move
responder
write
of
4
four
bytes

packet

multiplier

and

packet

0 is sent and proper status verified. The Response
Message
and verified. The buffer is verified to
contain bytes of

252.

The

the

same

unmapped.

buffer

Response

sent

and

Message

read

and

proper
status
verified.

internal

buffer

Buffer

Unmap

Request

verified,

for

and

the

*TST53
TST53

Buffer

Move

except

buffer

fill

(Delay

data

4):

This

371

used.

and

test

delay

identical

count

TST53

seconds)

*TSTS54
TST54

Buffer

Move

except

buffer

fill

moves)

Buffer

Move

(Repeat
data

3):
370

This
and

used.

test

repeat

identical

count

TST53

(generating

*TST55
TST55

starting

length
map

with

request

buffer

1024

bytes

length

Response

real

buffer

with

buffer

sent

and

1024
is

length
for

with
write

verified.

Verify

the

for

packet

verified.
buffer

the

same

The response
unmapped.

and

buffer

message

125.

Response
byte

sent

read

and

byte

status

Map

variable

contains

proper

multiplier

The

performed

the
reached. A

is
fill

bytes
of

incrementing

1024

verified.

status

request

is
and

fill

Proper

Unmap

bytes
read

responder

count,

verified.
buffer is

following

of
4
length

repeat

The

buffer

Length):

length

Message

Command

delay,

(Variable

buffer

until

for

The

Buffer

four

Issue

pair
and

Move
with

data.

proper

verified.

buffer

bytes

packet

Message

and

verified.

internal

length

and

buffer

pair

size

read
A

and

Buffer

status

The

internal

*TST56
Buffer

with

buffer

Move

size

message

read

filled

with

write

(Size

fill

packet

of
is

and

bytes

1024

bytes

and

verified.

The

verified

buffer

read

Response
contain

buffer

and

proper

buffer

verified.

multiplier

1):

366,

sent

125.

Move

with

packet

Message
366.

sent and proper
and verified. The

map

for

internal

buffer

Buffer

delay,
of

read

Buffer

command

repeat
is

real

1024

verified.

size

status

request

length
status

for

and

and
verified.

Unmap

request

and

response

mapped

count,

sent

buffer

bytes
The

and

responder

packet

proper

The

status
buffer is

for

the

same

is verified. The response message
internal buffer is unmapped.

TST56

DFCIB
_33._.

Table 4

DFCIB Commands (Cont)

*TSTS7

TST57 Buffer Move

(Multiple 1):

except a packet multiple of

This

is used.

test

identical

to TST56

*TST58

TST58 Buffer Move (Exerciser-Responder Write): Runs only against
the HSC responder. A buffer map request for a real buffer with a
buffer fill of 252 and a buffer length of 1024 bytes is sent and
proper status verified. The Response Message is read and verified.
Map first internal buffer in the exerciser and fill with bytes of
125. A Move Buffer Request for an exerciser write of 1024 bytes
with a delay, a repeat count, a packet multiplier and a packet

size of 0 is sent. Proper status is verified. The Response Message
The first internal buffer is unmapped. Map
is read and verified.

a second internal buffer and fill with 0 bytes. A Move Buffer

Request for an responder write of 1024 bytes with a delay, isa
repeat count, a packet multiplier and a packet size of O

issued. Proper status is verified. The Response Message is read
and verified. The buffer is verified to contain bytes of 125. A
Buffer Unmap Request for the same buffer is sent and proper status
is verified. The response message is read and verified. Unmap the
internal

second

buffer.

*TST59

TST59 Buffer Move (Exerciser-Responder Write): This test will not
run against the HSC responder. Map a buffer in the responder, a
Buffer Map Request for a real buffer with a buffer £fill of 252 and
a buffer length of 1024 bytes is sent and proper status verified.
The Response Message is read and verified. Map an internal buffer
of 1024 bytes and fill with bytes of 125. Transfer the data to the
responder from the exerciser. Test for data transfer complete.
Unmap the first internal buffer. Map a second internal buffer fill

with 0 bytes. Issue a Move Buffer Request for a responder write of

1024 bytes with a delay, a repeat count, a packet multiplier and a

packet size of 0 is sent and proper status verified. The response

message is read and verified. Verify the buffer contains bytes of
125. A Buffer Unmap Request is sent and proper status is verified.
The Response Message is read and verified.
*TST80

TST80 Read Counter Test: Connect to the selected node and verify
proper status. A Read Counter Request is issued and proper status
is verified. The Response Message is read and verified. The number
of acks, nacks and no responses for path A and path B is printed
out along with the number of disregarded datagrams.
*TSTO9

TST99 CTP Exerciser: Runs three iterations of the exerciser
sequence while varying the repeat counts to 2, 32, and 64. This is
done to increase the amount of traffic on the CI. The exerciser
sequence uses the three basic methods of transfer: messages,
datagrams, and buffer transfer, to create traffic on the CI.

The test begins by initializing the test tables and flags and goes

on to get configuration data on all nodes on the CI. It uses this

configuration data and the selected nodes to create selection list
for the exerciser. Nodes that are selected but not accessible are
dropped.

The exerciser sequence consists of the following for each node. If
no /ITERATION switch is specified in the RUN command, then 100
iterations of the exerciser are performed. All operations are
performed on each node before moving to the next item in the list.
°

)
)
)
)

TM
.

Connect

node.

Issue Generate Message Commands of 64 bytes.
Wait for and verify the Generate Message Responses.
Issue Generate Datagram Requests of 20 bytes.
Wait for and verify Generate Datagram Responses.

Map internal buffer,

Issue Map Buffer Request for

bytes,

verify Map Buffer Response.

Buffer

Response.

Issue Move Buffer

Request,

wait

Verify move buffer data transfer.

Unmap internal buffer.
Disconnect from node.

for

and

verify Move

Issue Unmap Buffer Request, verify Unmap Buffer Response,

HSC-RAXX
-34-

HSC-RAXX

DIAG/MAINTENANCE

PROCEDURES

Introduction

The

following

off-line
Two

current

determine

list of procedures
for
taking an
HSC
disk
diagnostics and/or maintenance
to
that
disk.

are

version.

following

perform

procedures

listed.

The

second

which

The

version

the

console

Control-C

(°C)

the

get

CRONIC

procedure:
At

first

for

you

HSC50

the

for

CRONIC

V200,

the

V250.

are

type

command

running,

use

the

Control-Y

("Y)

prompt

HSC50>.

NOTE

Perform

step

command

the

every

sho

you

are

running.

12:28:13.54

Boot:

System
Sector

Console

Dump

Restart

TU58

Enabled

Diagnostics

Diagnostic

DISK

allocation

Start

command

SETSHO-I

Exit

the

find

DISK

heading
port

and

Drives

the

not

sample

output.

any

and

HSCO015

ported

verify

the

HSC50

get

set

the

HSC,

type

If
the
drive
is
it
listed
under
the
NOHOST
table."
If
the

HSC50

use

see

saved

the

been

143:39

HSC50>.

will

you

has

“C

Up:

Name:

class

connected

prompt

you

Stored

are

allocation

disk

command

host,

reselected,

foTllowing.

SHOW

12:48:40.14

Enabled

Access.

the

does

not

SHOW

DISK

HSC50.

off-line

the

status

see

the

drive

command.

this

typing
this

See

example

Set

drive,

D4
type

prompt.

DISK

Port

———

TypeState/Version

———
—

stored

RA60online

saved

Program

NOHOST

table

host

access

/ MC-

3HV-1

Exit

V200
is

the

and/or

Dismount

them

procedure

repair
the

the

disk

from

drive

take

field

each

and

the

HSC50.

Hit

Reboot

takes

about

seven

disk

powered

off,

image

disk

off-line

version).

for

host.

deselect

out).

Reboot

(current

the

INIT

both

port

switch

minutes.

power

disk

back

on.

buttons

the

(pop

HSC50.

following

diagnostics

the

the
"Drives

Type

Disabled

TAPE

listed when
following example.

Drive

CRONIC

not

NoHost

status

was

the

SETSHO-I

Enabled
=

0
Enabled

Program

off-line

Dump

Interval-

class

file

SHOW

- — —

following

ID: %X00000000FOOQF
size-576

Warm

Automatic

Periodic

The

12-Sep-1985

Version:V250
Front Panel Enabled

The

sys

18-Sep-1985

Drives

type

this point, type the command Show System.
This prints
information about the HSC50,
including which version of

HSC50>

Unit

you

CRONIC

HSC50>

time

HSC5O0.

HSC-RAXX
-35-~

Go to the console of the HSC50 and type "C or “Y to get
the command prompt HSC50>, and type the following.

HSC50> SET D# NOHOST_ACCESS

The "#" denotes the drive number.

Reselect the port button on the disk drive to the HSC50.
Run diagnostics and/or perform maintenance on the disk
drive.

1f diagnostics and/or repairs are completed and you wish
to set the drive back online to the host, type the
following.

HSC50>SET D# HOST_ACCESS
CRONIC V250

The following

; otherwise, go to 2.

is the procedure to take a disk off-line for

diagnostics and/or repair.
1.

Dismount the disks from each host.

Go to the disk and deselect the iractive port button (pop

out the one that is not 1lit). This prevents the drive
from being accessed through another path when you take it
off-line.

Go to the console of the HSC50 and type “C or Y to get
the command prompt HSCS50>, and type the following.

HSCS50>SET D# NOHOST_ACCESS

The "4#" denotes the drive number.

If the disk drive is dual ported to another HSC50, you do
not have to perform this procedure for the second HSC50,
since you have already deselected the second port on the
drive.

At this point, you will see the following messages or a
reasonable facsimile.

SETSHO-I Unit currently online to host

- De-port the drive to remove it immediately

SETSHO-I Change to unit will take effect next time drive

goes AVAILABLE

SETSHO-I Program Exit

Deselect and then reselect the active port button on the
disk drive. (Pop out the one that is lit and then pop it
back in). The port light goes out and the HSC50 has have
control of the drive.

Run diagnostics and/or perform maintenance on the disk
drive.

At end of repair go to the console of the HSC50 and type

“C or “Y to get the command prompt HSC50>, and type the
following.

HSC50>SET D# HOST_ACCESS".

Reselect the second port button.
Remount the disks at each host.

MASSBUS

DISKS

CLUSTER

MODE

-36-

MASSBUS

DISKS

CLUSTER

MODE

DIAGNOSTIC

PROCEDURES

Introduction

When

disk

necessary

the

error

problem

configured
command.

occurs

isolate

drive
in

the

Units

determine

(channel
SPEAR

the

system's

ver-CONFIG

matches

the

drive

"problem

also

useful

situation

reports

its

current

serial-numbers

tool

Procedure

for

Checking

following

ver-CONFIG

simplest
(channel

file,

and

Stype

the

single-system

revision

structure
through

process.

names
the

Even

procedure
the

CFS

environment.

ver—-CONFIG

system

each

ALLOW

seen

isolation

the

showing

which

the

software

two

and

determine

the

with

first

KL10s, the problem MASSBUS
(A
physically connected
drive over
connected. At that point, device-specific

example

way

system.

system,

major

single

file

structure"

between

errors

the path to which it is
diagnostics can run, as in

The

that

utility

may

owned

7).

dual-ported

environment,

drive"

and

(Where

and

clustered

6-1-CONFIG.CMD)

The

"problem

show

ALLOW

drive

how

command

owns

the

problem

system

and

type

check

only.

clustered

through

the

the
the

drive.

the

PS:<SYSTEM>6-1-CONFIG.CMD<RET>

following.

!do

this on both CFS

systems;

IThis
20

assumes

version

;ALLOW

CFS

ALLOW

RP0O6

2191

!CHANNEL

guys...

DRIVE

ALLOW RPO6

2137

ALLOW
ALLOW

RP06
RP0O6

!CHANNEL

608
2167

DRIVE

these

!CHANNEL

DRIVE

talk

TOPS

6.1

ALLOW

RP06

The

ALLOW

8192

command

uses
this
format:
ALLOW
drive-type
serial-number. In the above example, RP06s
(serial-numbers)
2191,
2137,
608,
2167, and 8192 have been configured to "allow"
CFS
(Common
File
System)
to
access
these
drives.
Therefore,
the
problem drive must be isolated to that single system.
2,

that

point,

run

Units

serial-numbers

to
structure
structure"
is seen

"problem
See

the

following

wutility

names

and

through

drive

the

(channel

7).

Name

Logical

the

example.

match

determine

SUNITS
Status

Disk

Units

Mounted?

Type

Channel

Yes

RPO0O6

26-Jun-85

11:07:34

Controller

Unit

Structure

Unit

DSN

TANK:

2191

2137

Yes

RP0O6

RPO6

KEITH:

Yes

RPO6

Off-line

MRCSSE:

608
2167
8192

Yes

RP0O6

Yes

RPO6

MRCSSE:

——

MRCSE:

this

example

the

structure

system

running

the

Units

system

through

the

not

this

For

the

owner

system

system.

dual-ported

system.

that

diagnostics.

is,

"problem

Choose
the

MRCSE:

utility,

channel

drive,"

which
system

but

not

rather

Therefore,

both

system
from

owned

seen

the

systems

drive

can

designate

which

you

the

present

the

present

owner

system

considered

will

the
run

owner
the

CLUSTER MODE

DISKS

MASSBUS

MULTIO.EXE

INFO

-37-

Dismounting and Removing the "Problem Structure"”
isolating

After

problem drive

the

owner

system,

request

that operations dismount and remove the problem structure. If
operations is not available to dismount and remove the problem
structure from BOTH systems, use the OPR DISMOUNT command (with
REMOVAL on the owner system). First dismount the structure with
"hno—removalTM on the foreign system. Then use the removal switch

with dismount on the owner system.

tank:

OPR>dism str
OPR>

(with)

no-REMOVAL

~—— STRUCTURE DISMQOUNTED -Structure TANK dismounted

16:03:13

~— DISMOUNT STRUCTURE -16:03:13
Do not remove TANK: (alias TANK:)
DETACHED

Job 0,

OPERATOR,

User

DISK DRIVE INFORMATION
Disk
Chan-Cont

Status

Drive

Type

Mount

Count

Status

DISK PACK INFORMATION
Usage

Options

Name

(1/1)
TANK
Free
Avail
RP06 7,02,552
Structure cannot be mounted unless MOUNTed via OPR
OPR>EXIT

Now the problem drive may be spun down and the user pack
removed. Set the problem drive A/B port switch to the
owner system port for a dual-ported drive. Go to step 3

is connected

Steps

and

through

NOTE

are

the CI.

the

same

for

nonclustered disk drive.

Mount a scratch pack on the problem drive. Request that
Operations mount a scratch pack already set up with HOME
not
1is
operations
If
problem drive.
the
on
BLOCKS

available, mount a scratch pack on the problem drive,
spin the drive up and run CHECKD to set the scratch pack
up with HOME BLOCKS,

if necessary.

Request that Operations mount the KLAD pack on a free
system drive. Device specific diagnostics can, now run as
in a single-system environment. You can run the following

diagnostics on these drives.
DFRPH,

DDRPI

RP06

DFRPK,

DDRPI

RP0O7

DFRPM,

DFRPN.

RP0O4

MULTIO.EXE

INFORMATION

The following help document is designed to acquaint you with the
program MULTIO.EXE. This program runs only under user-mode and can
be very helpful for exercising disks (whether the disks are the
MASSBUS CI-HSC-RA type). MULTIO.EXE can be found on the KLAD20
pack

the

area.

NOTE

Because this program's purpose is to
program
this
running
1I/0,
file
test
during prime hours can slow the system.

The following is an example of a batch control file that can be
used to run MULTIO.EXE. The structure name and area being used is
called

PROJ:<TEST>

@mou str

proj:

@RUN MULTIO.EXE
proj:<test>test.mem
proj:<test>testl.mem
proj:<test>test2.mem
150
300

;submitproj:multio.ctl/rest:no/output:nolog/time:l:OO:OO/after:20:00:00

@daytime
@i dis proj:<test>
@QLOGO

MULTIO.EXE

INFO

PAGES.EXE

INFO
-38-

start

@CONN

this

type

batch

control

file,

PROJ:<TEST>
(CR)

the

;CONNECT

following.

DESIRED

STR:<AREA>
MULTIO.CTL/OUTPUT:NOLOG/RESTARTABLE:NO/TIME:1:00:00
(CR)

@SUBMIT

NOTE

This
is

example

<TEST>,

uses

and

(MULTIO.CTL)
output

the

and

(MULTIO.EXE)
not

structure

assume

exist

the

PROJ:,

area

control

file

the

log,

program

PROJ:<TEST>.

and

set

restart

No.

PAGES.EXE

The

INFORMATION

following

help

program

PAGES.EXE.

helpful

very

MASSBUS

pack

the

document
This

for

designed

program

runs

exercising

CI-HSC-RA

type).

only

disks

acquaint

under

PAGES.EXE

can

you

with

user-mode

(whether

the

disks

found

the

and

can

are

the

KLAD20

Large

files

area.
NOTE

Because

test

this

file

program

The

following

@RUN

PAGES.EXE

I/0

can

the

program's

under

slow

PAGES

purpose

TOPS20,

the

help

running

this

system.

text.

<CR>

PAGES>help

This

program

can

provides

written

structure

and

used:
CONTENTS

and

test

later

directory

arg

Specify

DELETE

Delete

EXIT

Leave

for

used.

contents

and

file

checked

are

expunge

file

LIMIT

Specify

the

error

MODE

arg

Set

the

mode

Set

the

number

HELP

Type

NUMBER

PUSH

this

Push

RANDOM-SEED
SIZE

SEEK

TAKE

file

new

the

random

the

size

random

commands

Read

and

Control/E

?pgrt

begin

files

limit

files

Commands

RANDOM) .

with.
each
or

file.
RANDOM) .

use.

seed

each

file.

the

structure

until

from

the

specified

file.

all

with

files

are

stopped.

correct.

data.

current

status

reading/writing/seeking.

reading/writing/seeking

iles,

PAGES>exit

for

(SEQUENTIAL

number

verify

files

the

seeks

Read

Type

(INFORMATIVE

connected

the

files.

typeout

VERIFY

Write

The

are

EXEC.

Set

WRITE

TOPS-20

text.

Set

Control/aAa

for

accuracy.
following

files

the

the program.
Specify the filename

FILES

I/0

for
The

and

any

open

<CR>

@
The

following

used

run

is an example
PAGES.EXE.

batch

control

file

that

can

NOTE

The

structure

name

and

area

used

are

PROJ:<TEST>.

;This

the

;on

the

RA81

;the

Bus

iprogram

control

drive.
exercise

pages

runs

;itself.

;with

file

disk

and

It will
that power

that

will

run

the

program

pages

Its

purpose

create

the

new

this

pass

control

file

will

re-submit

successfully,

is to
hardware.
the

continue to run until an
cancels this batch job.

operator

activity

;First

lets

@mount

structure

@if

try

(noerror)

and

mount

the

structure

mount

request

proj:

goto

"proj"

passl::

@daytime

@goto

end::

;

PASS]l::
iWe
’

are

here

because

the

was

successful

over

the

someone

PAGES.EXE

INFO

_.39....

@conn proj:<test>
@if (noerror) goto

PASS2::

@daytime’

end::

@goto
4

PASS2::

; We are here because the connect command was successful
I

pages.exe

@run

testy

*files

*mode

ran

*contents
*siz 100

*number

ran

*write
*verify
*delete

*exit
7

;:Now lets clean-up by expunging the files pages created and

deleted.
@exp proj:<test>
[

@if

(noerror)

goto pass3::

@daytime
@goto end::
i

;We are here due to some error in running PAGES.EXE

Pass3::

@submit

proj:<test>pages.ctl/rest:no/output:nolog/time:2:00:OO/after:+00:l
0:00

@goto

endl::

:
end:

;We are here due to an error in the ctl file
@daytime

@reset
@logo

endl::

;We are here because all went well and pages.ctl should have been
[4

;resubmitted and start running in ten minutes.
@daytime
@reset
@logo

To start this type of batch control file up do the following.

; CONNECT TO DESIRED STR:<AREA>
@CONN PROJ:<TEST> (CR)
@SUBMIT PAGES.CTL/OUTPUT:NOLOG/RESTARTABLE:NO/TIME:2:00:00 (CR)
NOTE

This

example

uses

structure

PROJ:,

area

is <TEST>, and assume the control file
(PAGES.CTL) and the program (PAGES.EXE)
We don't output
exist in PROJ:<TEST>.
the

log and we set

restart to no.

TOPS20

NIA20

V6.1

NIA20

USER MODE

DISABLING

DIAG
-40-

TOPS20

V6.1

NIA20

DISABLING

following

procedure

until

SYSTEM

START_UP

Introduction
Use

the

disable

the

NIA20

port

prompt.

/E
<cr>
(or
Structure:File.Nam/E
default structure or monitor).

startup.

system

Procedure
Follow
type

normal

the

boot

BOOT

BOOT>

System

NIINI/

responds

<cr>

with

EDDT,

(this

(This

INIT).

RET<cr>

1478G
<cr>
monitor).

the

starting

the

any
user—mode
on NIA20.

MODE

prompt,

not

using

NIA20

following.

starting

disables
system

return

the

Disabling

The

USER

type

the

location

the

NOTE

capability

NIA20

the

following.

use

port

startup

needs

the

NIA20

DIAGNOSTIC

also

diagnostic
reloaded
the

system.

PROCEDURES

Introduction
Use

the

following

These

procedures

answer

specific

the
diagnostic
information.
NIA20

run

help

TOPS20

V6.1

KLAD

privileged

free

Acknowledgment

RP06

leaving

NIA20

the

User-Mode

diagnostics,

particular

microfiche

Diagnostics.

but

diagnostic.

hardcopy

not

Refer

for

that

Requirements.

you

need

the

following.

higher.

account.

disk

the

drive.

that

the

system

Network

Knowledge

run

run
a

Diagnostics

area

Diagnostics

User-Mode

you

about

1listing

User-Mode

NIA20

procedures

will

questions

NIA20

unable

will
be
taken
communicate
on

(Ethernet).

how

run

D20MON.

pack

off-line,

the

local

Procedure
1.

Load

the

enable,

the
2.

KLAD

run

OPR,

and

mount

following.

OPR>MOUNT

STRUCTURE

available

the

KLAD

KLAD:/STRUCTURE

disk

onto

drive,

the

ID:PS:

System.

Type

<CR>

NOTE

In a
cluster
environment
the
Structure
ID: of the KLAD can be any one of the
following: PS:, PSl:, PS2:, PS3:.
There
are MIC
files
in your
<F-S>
account on

the

KLAD

the

KLAD

to make these changes. Refer
Naming Convention section.

You

now

need

unavailable

Diagnostics

may

corrupt

user

used.

OPR>SET
OPR

WARNING
to
set
the

Type

PORT

responds

OPR>EXIT

any

<CR>

the

do,

data

message

Port
The

most

cases

currently

being

following.

UNAVAILABLE

with

NIA20

system,

and

<CR>
that

the

port

disabled.

STOPCODES
-4]
-

<CR>

SMOUNT STRUCTURE KLAD:

This command mounts the KLAD to your user Jjob.

$CONNECT KLAD:<2-DIAGNOSTICS> <CR>

RUN D20MON <CR>

You may now select any one of the following three
User-Mode Diagnostics that run on NIA20 hardware.
DFPTA.A10
DFNIE.A10

DFNIA.A10

(Port Hardware)
(NIA Module)

(NIA20 Functional)

There is a special microcode file that is loaded with
DFNIA.A10 called NI20.ULD and is controlled by D20MON.

After running the NIA20 diagnostics, leave D20MON by
typing CTRL C twice. Dismount the KLAD from your user Jjob
and the system. Set the NIA20 available. Type the
following.

(CR)

$DISMOUNT STRUCTURE KLAD:

10.

OPR>DISMOUNT STRUCTURE KLAD: REMOVAL (CR)

11.

OPR> SET PORT NI AVAILABLE

12.

OPR> EXIT

(CR)

Stopcodes -- BUG HLT, BUGCHK, and BUGINF

List of
The following lists all stopcodes added to TOPS-20 since release
5.1. This 1list shows the name and type of each stopcode, the
calling module, a phrase message (for which the name is a symbol}),
a brief description of the error that caused the stopcode, and any
data item that can help analyze the cause. For more information,
the
see the file BUGS.MAC in the PS:<SYSTEM> area, or consult
source code if available. This also can be found on the

Distribution Tape in the Documentation area called BUG.MAN.

Type

BADFEV

HLT

PHYSIO

BADIRB

HLT

PHYSIO

BREAKIN INF

JSYSA

BUGINF, BUGCHK

BUGHLT,

Table 5

Message and Explanation

Module

Name

CHKPDB - Wrong or bad front-end version.

Front-end did not send a type 40 message to
identify the front-end disk serial numbers.

passed

IORB

Bad

to GIVIRB.

IORB

was

passed to GIVIRB that does not have a legal
address. This indicates a software problem
in

the

monitor.

Someone

Password guess threshold exceeded.
typed
has
passwords.

subsequent

possible

incorrect
MXFLCT
than
more
all
refuses
now
system
The
It is
time.
passwords for some

the

person

Iis

guess

trying

passwords.

CTRLTT - Line number of the Jjob

’

USERNO - User number if the job is logged in
STRNAM

Six-bit

name

the

target

structure

DIRNUM — Directory number of the target

CCBROT

INF

DIRECT

CPYBAK - Can't copy backup root-directory.

Monitor detected a problem with the backup
root-directory and is trying to copy the
primary root-directory to the backup. The
copy

failed.

LSTERR - Error

returned from CPYBAK

STOPCODES
—-42~-

Table
Name

Type

CFACCF

HLT

BUGHLT,

Module
CFSSRV

BUGINF,

Message
CFSSRV

BUGCHK

and

(Cont)

Explanation

©SC.ACC

failed.

Call

failed.
NODE

CFANAE

CFBAFN

CFCCLZ

HLT

CHK

CFSSRV

Node

number

CID

Connect

ERR

Error

CFSSRV

update

the

entry

SC.ACC

allocation

entry.

directory

could

CFSSRV

with

CFSSRV

returned

called

SC.ACC

Bad

not

invalid

Can't

wanted

entry,

and

CFSDAU

was

found.

function

Caller

allocation

CFSDAU.

function.

CFS

connection.

"Set

offline"

was requested and SCA refused to
a
CFS
connection.
Call
to
SC.DIS
to
disconnect from the remote node failed. This
may result in a CFRECN BUGHLT when the CI is
put on-line.
close

NODE

CID

Node

ERROR

CFCCML

INF

CFSSRV

number

Connect

1ID

code

Error

CFSSRV

Another

system

remote

returned

Cluster

cease

sent

SCA

message

"cluster

could

not be queued because
available resident free space.
CFCONN

INF

CFSSRV

CFS

connection.

received

from

another

NODE

CID

Number

Connect

SERNUM

CFDISC

INF

CFSSRV

request

was

the

CID

CFSSRV

Remote

HLT

CFSSRV

vote

CFLISF

CFRECN

HLT

CFSSRV

node

disconnect

remote

node

number

Vote

packet

address

packet

address

©SC.LIS

Error

CFSSRV

code

Null

Call

was

made

but

SPTH

for

was

remote

given

failed.

returned

disk

the

address

bad.

SC.LIS

CFSAWT.

create

OFN

access

not

set

up.

reconnect.

between

another

continued

Number

that

token

CFSBNO

HLT

CFSSRV

Connect

Broadcast

broadcast

OFN

does
table.

CFSBTP

HLT

CFSSRV

re—-established

and

Bad

the

unknown

the

block

OFN

recorded

one

passed

have

token

not

acquire

access

this

illegally.

connection
-

Bad

CFSWDN.

OFN

and

NODE

given

system

Illegal

node
is

Call

CFSSRV

CID

Serial

CFSSRV

ERR

HLT

was

CI20.

CFS

from

node

failed.

CFNLTK

the

remote

disconnect.

received

Connect

SERNUM
HLT

CFS

connection

connecting

number

that

was

CI20.

NODE

CFGARD

Serial

CFS

node

lost.

cease"”

there

OFN.

CFSBEF

pointer

for

entry

packet.

token

for

exists

address

the

block

CFSAWT.

was

not

This

CFSOFN

called

OFN.

this

CFSOFN.

does

called

OFN.

the

CFSAWT

access
already

into

was

OFN

system

But

the

match

the

STOPCODES
-43-

Table 5

Module

(Cont)

BUGHLT, BUGINF, BUGCHK

Message and Explanation

Name

Type

CFSICN

HLT

CFSSRV

CFSIGT

HLT

CFSSRV

CFSSRV - Illegal return from CFSGET.

CFSILJ

CHK

CFSSRV

CFSSRV - Illegal Local Job Number.

CFSKPD

HLT

CFSSRV

CFSSRV - Illegal configuration. This system
detected an illegal configuration. There may
be too many nodes in the network. The caller
of this routine should be examined for more
details.

A call

+1,
was

to CFSGET, CFSGTT, or CFSGTL returns
wait-until-successful
a
though
even
requested.

was called to convert a local
a global index, but the local

LCL2GL

Jjob number to
job number is

invalid.

The

failed.

KLIPA

failed and

hardware or the CI

KLIPA

The

cannot

CFS

continue.

CFSMPB

HLT

CFSSRV

returned

CFSMAP

in-use

CFSMAP returned a resource block

entry.

that

already in use. This is a debugging check.

CFSNAF

HLT

CFSSRV

Allocation entry not found.
entry was Jjust created and
find

CFSNOT

HLT

CFSSRV

in the hash table.

An allocation

CFSSRV can't

CFSSRV - OFN token table and hash table
CFSSRV

disagree.

tried

removing

file

access token and has found the token in the
hash table, but not in the OFN token table.
This indicates that one of the data bases is
incorrect.

CFSOFB

HLT

CFSSRV

CFSRNM

HLT

CFSSRV

CFSSRV - OFN owned at CFSOFC. CFS received a

message from a remote system that an OFN
changed and needs to be verified again. But
CFS found that it owns the OFN. It should
never have

received the message.

A pack

CFRDSN - Could not rename DSN entry.

of a mounted structure was moved to a new
unit and the new CFS mount resource already

exists for the new drive.

Or,

a drive on

which there is a pack of a mounted structure

was given a new drive serial number and the
new CFS mount resource already exists for
the new drive. This indicates either the CFS
data base is wrong, or PHYSIO's data base is
wrong.

CFSSEZ

HLT

CFSSRV

section zero.

non-zero

CFSSUF

HLT

CFSSRV

HSHLOK was called from.

CFSSRV - Section 0.

HSHLOK must be called

from a

section.

CFSSUG - Could not find entry to upgrade.

a structure, and the CFS data base has
record of the structure being mounted.

request was made to change the mount type of

CFSCON

CFSTND

HLT

CFSSRV

CFSSRV - Access token not deleted.

CFSTUC

HLT

CFSSRV

CFSSRV - Unexpected error encountered during

was called to verify that an access token
was deleted before an OFN was released. This
BUGHLT indicates that the token was not
deleted.

structure

operation.

structure

mount

dismount failed and generated an unexpected
or illegal error code. If the error code is
-1 then the failure was local to this
for
happen
not
should
This
system.
structures.

error

code

Also,

zero.

there

CODE - Bogus error code

should

never

STOPCODES
-44-

Table
Name
T

Type

BUGHLT,

Module

BUGINF,

Message

BUGCHK

and

(Cont)

Explanation

CFSVFL

HLT

CFSSRV

not

during
a

CFSWMC

CFZCNT

HLT

APRSRV

CFSSRV

Structure

verify

the

DIRECT

join

CODE

CFS.

CFSSRV

Zero

not

LSTERR

CHKR

decrement

count

Can't

get

root-directory

returned

not

run

fork

the

job

perform

BUGHLT

when

that

life.

occurs

the

CHKR

fork

resource

zero.

run

causes

for

CHKR

CINACF

CHK

CIDLL

failure that
updating the disk

prevents

Removal

structure

Logic

mounted

errors

HSC

MSCP

failed.

connection,

but

the

ERRCOD
CINBCD

CHK

CIDLL

Bad
a

Error

CID.

callback

connection
ID.

code

SCAMPI

This

CIDLL.

open

bugcheck

CID

CINBSC

CHK

CIDLL

connect

Function

Unexpected

callback

SCA

may

Bad

DSPTCH

the

bad

CIDLL

with

crashes
while
outstanding.

Bad

Connect

CINFRB

CHK

CIDLL

have

on
any

connect

one

system

message

ID
dispatch

CIDLL

the

not

DECnet/CI

word

SCAMPI

issued

unexpected

with

callback.
SCAFUN

SCA

SCAMPI

connect

does

callback.

SCACID

particular

occur

from

incoming

call

returned

supplied

hung

accepted

failed.

long

running

fork

the monitor
server disk is

CIDLL

too

not

include:

detects

for

disk

for

runs
functions.

scheduler

not

time.

Possible

Monitor

exists

fork

essential

the

backup

long.
that

This

has

OFN.

the

ASGOFN

too

zero

system's
periodically to

function

Failed

the

SCA

now

recycle
and

SCAMPI

the

buffer.

failed

receive
port

supplied

One

datagram

Connect

BUFADR

Address

CIDLL

return

queue.

SCACID

code

that

call

datagram,

the

already

for

from

for

CFS.

decrement.

the

Error

probably

microcode

fork

creates

before

cannot
be
assigned
Root-Directory of a file.

SCHED

could

resource

support

OFN

CHKRNR

CFS

but

count

CHKBAK

The

does

HSHCNT

wants

There

conflict.

for

running

failed.

structure

operation.

currently

routine

INF

verify

existing

structure-naming

Wrong

share
CGROFN

less

receive

buffer

received

the

that

buffer

queue.

could

not

posted

CINLER

CHK

CIDLL

Local

port

routine

CINLIE

CHK

CIDLL

equal

noticed

ourselves.
before.

that

CIDLL

remote.

tried

have

detected

Listen
failed.
CIDLL
asked
"promiscuous
listen"TM
but
the
As

consequence,

future

incoming

ERRCOD

Error

Activate

should

the

system

DECnet/CI
code

connect

SCA
call

does

for
a
failed.

not

connections.

returned

from

this

SCAMPI

STOPCODES
-45~

Table
Name

Type

CINNIC

CHK

CIDLL

Received
is

industry compatible.

not

- Flags

FLAGS
CINRRL

INF

CIDLL

packet mode

but

datagram,

DECnet

CIDLL

format.

packet

illegal

received

Explanation

and

Message

(Cont)

BUGCHK

BUGINF,

BUGHLT,

Module

mode

and

packet

Remote

rejected our protocol version.

Remote

be running another
system
remote
the

between

DECnet/CI

the

protocol

may
version of TOPS-20, or
VMS.
running
be
may

DECnet/CI.

version

understand

not

does

port

other

The

and

TOPS-20

system

not

VMS

supported.

LOCVER - TOPS-20 DECnet/CI protocol version
CINRWP

INF

CIDLL

supplied wrong protocol version. The
remote port is not running the same protocol

Remote

version of DECnet/CI. This may happen if you
are running DECnet/CI between two different

versions

DECnet/CI

you

are

TOPS-20

and

VMS

TOPS-20,

between

DECnet/CI

TOPS-20

and

running

system.

VMS

not

1is

supported.

ends protocol

REMVER - Remote

version

protocol

systems

TOPS-20

Local

LOCVER

version
CINUCB

CHK

CIDLL

a
issued
SCA
callback.
SCA
DECnet/CI that was not expected

Unexpected
callback to
in

the

current

state

- DECnet/CI

STATE

SCACID

Connect

ROUADR

- Address

gquestion

the

connection

for

connection.

the

state

connection

SCA callback

processing

routine
CINUDR

CINUEC

CHK

CIDLL

Unexpected datagram receive. CIDLL received
a datagram with the connection state not
being

RUN.

SCACID

Connect

Unexpected connect
from
callback
a
connection

not

response. CIDLL
stating
SCA

response was

any

expecting

available.

such

received
a
that
CIDLL was

for

callback

the

port.

SCACID
CINWNB

CHK

CIDLL

Wrong

Connect

number

buffers.

to allocate 1 buffer,
Extra

one.

COUNT
and
CIPDFQ

INF

PHYKLP

CNTOUT

INF

DIAG

COMBNN

CHK

D36COM

Number

CIDLL

but

buffers will

buffers

asked

SCAMPI

received more than

now be

lost.

SCAMPI

allocated

returned

PHYKLP - Datagram free queue empty.
found the datagram free queue empty.

Port

Read of performance counter® timed out. KLIPA
did not respond to a read of the performance
counters in the allotted time.

Bad local node number. Node number set with
the NODE command in the CONFIG file is
higher than the DECNET MAXIMUM-ADDRESS value
set

1in

the

same

file.

DECnet

cannot

initialize.
COMCID

CHK

D36COM

found
SCTINI
DECNET.
initialize
Couldn't
DECnet
the
about
object
to
reason
a
it
reasons
the
for
SCTINI
See
environment.
takes

non-skip

return.

STOPCODES
-46~

Table
Name

Type

COMDNP

CHK

COMDT1

COMDTE

COMFWZ

COMIEL

COMMMS

HLT

CHK

HLT

BUGHLT,

Module

D36COM

DTESRV

D36COM

BUGINF,

Message

DNGPOS

called

memory

was

found

BUGCHK

and

with

bad

used

not

during

MOVSLJ

failed.

instruction,

DTESRV

MOVSLJ

failed.

MOVSLJ

instruction,

Tried

called

with

end

one

block

first

pointer

Bad

pointer

memory

the
and

this

the

execute

was

pointer.

CHAVL,

the

free

there

was

list,

but

the

zero.

memory

block

the

user.

block

quantity

pointer

execute

DNFWDS

before

that

zero.

block

means

just

"check"

that
bug

out

given

length

tried

the

passed

left

This

failed.

indicated
on

was

gives

points

failed.

but

list

count,

least

DNGWDS

blocks.

pointer.

available

word

attempted

but

words

The

checking.

DTESRV

free

Illegal

MS.

message

range

MOVSLJ

(Cont)

Explanation

When
check

word

This

word

contains

the

what

word

was

were

first

this

manager.

memory,

the

right

left

verify

expected.,
either

passed

This

trashed,

bad.

BUFFER

Address

faulty

buffer

CALLER

Address

caller

that

block

too

short.

D36COM

failed.

provided

the

buffer
COMMTS

CHK

D36COM

New

message

instruction
COMMZP

CHK

D36COM

DNMINI

was

caller

count

COMSTB

CHK

D36COM

data

DNGOPS

memory

found

Smear

CPTMAP

PAGUTL

SETCPT

called

CSKBUG

HLT

SCHED

supposed

MS.

The

message

caller

smeared.

already

not

code

mapped.

CPTPG

This

requested

routine

while

was

CPTPG

callers

was

should

call

mapped.

CSKED.

was

sensitive

points

blocks.

the

checking.
The

CPTPG

the

big.

All

bytes

put

refresh.

block

setup

Some

zero

too

when

the

cause

for

large

setup.

ECSKED

when

CPTPG
to

already
RELCPT

bad

range

MOVSLJ

pointer.

ask

block

used

mistakenly

with

not

very

zero

and

message

during

request

which

the

called

meant

T1,

was

that

passed

probably

user

pointer
COMODP

half,

not

code

ECSKED

really
to

was

CSKED.

ruined

done

This

may

because

races,

CTDCHB

HLT

CTHSRV

CTERM

hibernate

hibernate
DECnet.
CTDEPF

CTDFRK

INF

CHK

CTHSRV

MEXEC

CTERM

was

should

never

enter

passive

host

free

space

enter

passive

Cannot

not

for

called.

called
be

There

failure

CHK

CTHSRV

Can't

get

system

free

CTERM

fork.

CTERM

created

and

started

CTDILS

CHK

CTHSRV

free

space

startup

CTERM

was

during

host.

system

startup.

CTDFSA

CTERM

misguided

called.

failed.

allocation

create

could

routine

for

CTERM.

couldn't

fork

system

During

get

enough

space.

CTERM

link

Sent,
state.

unexpected

one

these

Connect

Rejected,

state.

CTERM

states:

Connect

illegal

some

STOPCODES
-47-~

Table

Type

Name
¥

CTDPRR

INF

CTHSRV

Message and Explanation
it does not

a message that

CHK

TTYSRV

DDMINT

CHK

MEXEC

like.

count

byte

- Current

to beginning of message.

BEGIN - Pointer
CDB

CDB

A server sent TOPS-20

error.

CTERM protocol
COUNT

CTYSTK

(Cont)

BUGCHK

BUGINF,

BUGHLT,

Module

FE reload requested because CTY is stuck. A

JOB 0 fork tried to output to the console,
but was unable. The Jjob entered the JOTCOT
scheduler test to wait for the CTY to clear,
so that output could begin again. However,
the CTY remained hung for a while and a FE
requested.

was

reload

DDMP

interrupt

Unexpected

process.

error occurred in the process
that handles page migration to disk. The
the
reinitialize
to
tries
handler
error
context and resume processing. The stack may
the
where
of
indication
an
for
be examined

unexpected

occurred.

error

ITFPC - PC when error occurred
LSTERR - Last error code in fork

DDMPNR

HLT

SCHED

Monitor

long.

too

for

run

not

fork

DDMP

creates a fork in job zero that exists for
runs
fork
This
life.
system's
the
periodically to perform essential functions.
detects
scheduler
the
when
occurs
BUGHLT
that the DDMP fork has not run in too long a
time.

Possible causes for DDMP not running are.
1. A disk failure that prevents fork
2.
3.

DDXFRK

HLT

MEXEC

Mounted structure removal
Logic errors in the monitor

create the old "Job 0" fork
or the fork could not start

PAGUTL

CHK

JSYSA

from JSYS

returned

code

DDMP - Bad XB. DDXBI was called to swap in a
the

but

block

index

out

forced
is

DIRRNA

failed

that runs CHKR,
in monitor mode

JSYS.

MSFRK%

the

ERRCOD - Error

HLT

CFORK%

fork.

CHKR

create

Cannot
with

DDXIN

disk

the

from updating

block

index

bad.

Remote node alias list inconsistency. GTDRN1
was called to allocate space for the user's
node

remote

block

alias

pointer

but

the

PHYKNI.

block
alias
node
remote
monitor's
the
provided by the caller does not contain the
- Directory number

DIRNUM

DLLBPA

HLT

NISRV

Illegal

Portal

supplied

when

called

back NISRV.

block

returned

DMPIOM

CHK

DISC

DNDCGE

CHK

DNADLL

type.

block

correct

- Bad

DSKDM -

monitor.
previous

portal

DNADLL

PHYKNI

address

block

I/0 disk dump mode

I/O called

from

DSKDMI or DSKDMO called and the
mode
exec
an
indicates
context

DUMPI% or DUMPO% JSYS.

Couldn't

block

portal

illegal

get

requires

There aren't any.

emergency
that

buffer

for

DLL.

the memory manager

save

guarantee

some

at least two buffers per 1link for DNADLL;
one for the routing messages ROUTER keeps
for

each

level
asked

of
to

circuit,

and

one

route-through ability.
open a data link, but

DNADLL was
the memory

manager could not guarantee the buffers.

STOPCODES
-48~

Table
Name

Type

DNDCGV

INF

DNDCIZ

CHK

BUGHLT,

Module

DNADLL

BUGINF,

Message

Couldn't

get

CHK

DNADLL

all

give

Callback

Enable

CHK

DNADLL

Ethernet

DNADLL

error

ERRCOD
DNDNOF

CHK

DNADLL

NISRV

DNDXMF

CHK

DNADLL

Read

D36COM

when

ERRCOD

NISRV

our

NISRV
returned

network

management

ethernet

portal

failed.

trying

when

NISRV

open

return

code

the

returned

error

ERRCOD

called

Error

NISRV
returned

channel

Ethernet

when

code

with

one-word
set

MOVSLJ

NISRV

list.

NISRV

failed.

trying

NISRV

queue

transmit.

DNSBP

only

returned

failed.

message

for

code

asked

two-word byte
indirection.
CIDLL

returned

error

list

Error

Transmit

CHK

NISRV

read

Error

error

with

DNSLJ

returned

code

open

channel

returned

HLT

failed.

trying

counters,

returned

message

DNSBPB

the

one.

portal.

ERRCOD
DNDRLF

and

lost

had

portal.

asked

failed.

closing

when

code

Error

Attempt

returned

when

error

code

asked

parameters

block.

address.

management

when

has

never
address

NISRV

Error

when

Error

Network

DTESRV

line

multicast

arg

memory

multicast

ERRCOD
CHK

zero.

returned

from

event

available

this

returned
portal.

DNDNNF

for

enable

Error

for

its

any.

NISRV

ERRCOD
DNDNCE

memory

used

can

not

(Cont)

Explanation

DECnet

callback
DNDEMF

BUGCHK

and

returned

OWGBP.

global
to

pointers,

failed.

byte

handle

NISRV

DNSBP

was

DNSPB

one-word

without

MOVSLJ

called

pointer.

local

indexing

instruction

did

and

not

skip.
DRXRNA

CHK

DIRECT

DIRRNA

block
in
illegally
DIRNUM

DSKBRP

HLT

DSKALC

TIllegal

formatted

directory.
formatted.

Remote

Directory

STRNAM

Six-bit

ADDR

Address

DSKDEA

was

INF

DTESRV

DTE

Pages

called

MCB

name

multiple

delete

cylinders.
a

number

pages
are
not allowed.

multiple

incorrect.

detected

handshake

that
the MCB's
during
a
QP2

directory

pages,
and
the
cylinders. This is
DTEBWS

alias

block

number

structure

remote

alias

init bit was
not
correct
protocol
initialization

handshake.

DTECGB

CHK

DTESRV

DTE

number

MCB

allocate
output
DTE

caller
initialization

memory

buffers.
DTE

number

caller

for

timed

out.

Couldn't

section

zero

input

STOPCODES
~49-~

Table

Type

DTEKPA

INF

DTESRV

DTESUI

INF

DTESRV

(Cont)

BUGCHK

BUGINF,

BUGHLT,

Message and

Module

Name

Explanation

DTE keep alive fail. The DTE keep-alive
counter is not updated by the PDP-11.
DTENO

- DTE

number

Front end requested reload or init. A PDP-11
requested a reload or init but the enabled
DTE

- DTE

STATUS

this DTE

for

protocol

number

word

Status

not DECnet.

from

PDP-11's

comm

region
DTETPR

INF

DTESRV

DTE protocol terminated. The protocol on the

DTE stopped because of a BOOT%
DTENO

FILBAT

INF

DISC

request.

- DTE number

DSKCLZ - File marked as possibly bad. A file
is being closed and the OFN for the file
contains a bit indicating a possible error.
The

file's FDB will be marked.

DIRNUM - Directory number
STR - Structure name in SIXBIT
FLKINT

INF

FORK

FLOCK - Called while NOINT. Routine FLOCK
was called while the calling process was

unable to be interrupted. The calling fork
was not nesting the lock nor was it the top
fork of the job. This indicated a logic
error because if this fork was unable to
acquire the lock it will DISMS while NOINT.
This can cause a deadly embrace where the
fork that owns the lock does not relinquish
it until the fork that has been dismissed is
interrupted, which will never happen because
the

FPTMXX

HLT

PAGEM

HLT

DSKALC

NOINT.

Process

address

sched

context.

FPTA was called in scheduler context
of
part
is
that
address
an
given
process/job

context

- Given

address

ADR
FSICFS

fork

FPTA

and
the

area.

Could not register PS with CFS. Some other
mounted
structure
this
has
system
CFS
exclusively or as an alias and is preventing
this system from mounting the structure.
This is an administrative problem.

FSPANN

HLT

FREE

ASGFRE called OKINT. This is a free space
space
free
swappable
to
Calls
problem.
the
only while
made
be
should
routines

calling
The
NOINT.
is
process
calling
routine is not protecting itself from losing
OKINT
is
it
Since
OKINT.
is
It
free space.
it could be interrupted and never
thus losing the free block assigned.

return,

POOLN - Pool number
CALRPC - Caller of RELFSP
FSPARB

HLT

FREE

The
released.
block being
RELFSP -~ Bad
caller is trying to release a block that was
already
POOLN

released.

Pool

number

CALRPC - PC of caller of RELFSP
BLKADR - Address of user block

STOPCODES
-50-

Table
Name

Type

FSPBBS

HLT

BUGHLT,

Module

FREE

BUGINF,

Message

Bad

blocksize.

The

block

minimum
the

the

pool.
-

Block
The

the

FREE

the

This

does

free

not

Address

the

pool

Block

out

problem.

The

caller

bad

trying

given

out by
outside

was

not

block

problem.

its

trailer.

block

2zero

itself

pointer.

The

Zero

itself

descriptor

RELFSP

space

match

the

routines

block

descriptor

contains

space

problem.

number

indicates

HLT

space

pointer.

header

Pool

BLKADR

FSPBND

free

pool

bad

damaged.

the

block

POOLN

number

Address

contains
FREE

is
either
smaller
than
the
size for this pool, or larger
entire amount of space allocated to

indicates

HLT

This

size

Pool

BLKADR

FSPBLK

(Cont)

Explanation

block

than

POOLN

BUGCHK

and

range.

This

free

the

free

space

block

that

return

the

free

space

the

range

RELFSP

block

being

manager.

free

space

management.

POOLN

FSPBPC

HLT

FREE

Pool

number

CALRPC

BLKADR

Address

RELFSP
space

caller

Bad

pool

problem.

routines

The

the
pool
blocksize,
an

may

FSPDNN

HLT

FREE

may

already

POOLN

Address

RELFSP

called

could

All

free
space

increased

the

results.

The

number

the

pool

count

caller
of

RELFSP

block

being

This

calling

swappable
OKINT.
This

returned

routine

free

space

trying

POOLN

FSPOUT

INF

FREE
-

Pool

space
block while
dangerous
since
it

actions

loose

should

the

block.

occur

while

space

FREE

Free-space

This

1is

free-space
pool

free
space

pool.

number

free

space

does

not

The block being returned
into the free pool.
The block
overlap the preceding
block
in the

pool.

FREE

There

the

RELFSP

POOLN

HLT

exhausted.

RELFSP

would

FSPSCC

caller

problem.

POOLN

HLT

of
pool

available

FSPPRE

number

Freespace

free

is
interrupted
and

space

NOINT,

CALRPC

that

error.

OKINT.

The

get

free

block

error,

free

the

number

BLKADR

returned

This

return

count

CALRPC

release

caller

1invalid

Pool

problem.

count.

trying

when

blocksize

Bad

block

released.

Pool

Address

RELFSP

Bad

free

space

does

not

caller
of

block

problem.

fit

into

overlap

the

user

being

The
the

RELFSP
block

released.

block
free

Pool

succeeding

number

CALRPC

BLKADR

Address

caller
of

user

RELFSP
block

This

being

pool.

pool.
-~

number

BLKADR

POOLN

This

problem.

fit

CALRPC

would

being

The

block

returned
block
in

the

STOPCODES
-51-

Table

Name

Type

FSPZER

HLT

FREE

Message and Explanation

ASGFSP - Illegal to assign 0 FREE space. An
illegal request for free space was made. The
calling routine is asking for zero words of
space.

free

- PC

CALRPC

ILDSTF

HLT

INF

PHYSIO

DATIME

Pool

POOLN

HOMGON

(Cont)

BUGCHK

BUGINF,

BUGHLT,

Module

number

the

PWOQ.

CHN

- Channel

one

number

KONT

- Controller

UNIT

number

Unit

Illegal Daylight Saving Time
DSTFLG

Missing

should

there

IORB when

block

IORB.

homeblock

FRTHOB - Missing
home

of ASGFSP

caller

illegal

contains

about.

DATA

Location

flag.

most

The

value.

way of
likely case of this bug is a
confusing DST that subroutine DSTCHK wasn't
informed

DSTFLG

ILESCD

HLT

PAGEM

- Daylight

new

follows:

flag

time

savings

A
shared.
not
pointer
section
Monitor
pointer for a monitor section was found that

pointer. Only share pointers
If other pointer types are

is not a share
are expected.

used, this code must be enhanced. It 1is
possible that the monitor section table has
been

clobbered.

POINTER

Pointer

was

which

for

section

Monitor

SECTION
found.

ILLMJS

CHK

APRSRV

in monitor.

JSYS with E GTR 1000 executed

JSYS with E greater than 1000 was
in the monitor. There should be

executed
no such

cases.

ILLTAB
proper
in

JSYS

- Table is
name table

CHK LOGNAM TABLK2
format. A logical

alphabetical

not in
is not

order.

TABADD - Address of logical name table
ILLUUO HLT APRSRV,KIBADU - Illegal UUO

context.

monitor

instruction

that

monitor

The

microcode

the

from
executed an

treats

MUUO. The op code is not 104 (for a JSYS) or
one of the KAlO floating point instructions.

flags

when

MUUO

address

space

where

MUUO

Processor

FLAGS

executed

in monitor

executed

EFFADR - Effective address

INVDFN

CHK

DTESRV

DTEDSP
DTEDSP

- Bad

function

supplied

of MUUO

specified.
illegal

Caller

controller

function.

ITNOJC

HLT

SCHED

Instruction

Illegal
entered,

trap

not

JSYS

<context.

handler
trap
instruction
but the process is not in

context.

LSTERR

ERRPC

MUUOPC

Last

error

Last

MUUO

code

- PC at which error was generated
PC

was
JSYS

STOPCODES
-52-

Table
Name

Type

JBOCSH

CHK

BUGHLT,

Module

MEXEC

BUGINF,

Message

Job

system

the

examined

JBOINX

CHK

MEXEC

which

Last

Unexpected

Job

The

error

and

what

occurred.

PPC

NEWPC

FREE

JSB

was

which

stack

during

occurred

error

reset

the

context

specified

error

resources

not
being
examined
to

when

the

control

occurred

which

cleanup
error code in

error.

This

logic;

the

this

fork

problem

count

for

CHK

MEXEC

Failed

startup

read

CI20

tried to read
in the
KLPUCD in module PHYKLP
while trying the read.

error

KLPBDS

HLT

PHYKLP

ERRCOD

Error

PHYKLP

Bad

was

is
KLPBOP

KLPBPK

CHK

HLT

PHYKLP

called

not

PHYKLP

packet

with

Bad

from

perform

function

BOC

Bad

PHYKLP

code

illegal

the

system
UCODE.

got

JSYS

returned

dispatch

purging

the

CI20

PHYSIO.
of

capable.

while
-

code

the

stack

available,

microcode.

Routine

with

the

indicated
that
free
cells
were
however, none could be found.
KLIPAF

may

locks

progress

error

being

handler.

initialization.

after

Last

JSB-stack

error

control

can

Address

transferred

fork

system

stack

error

that

this

the

some

result

The

determine

HLT

tries
at

may

job

unexpected

job

LSTERR

for
in

default

handler

checks

stack

situation

the

however,

hung

The

during

continues

interrupt

that

reinitialized,

occurred

code

results

address,

cleared.

JSTERR

that

happened

the

interrupt

transferred

This

error

initialization.
in

fork

determine

error.

context

restarted.

the

LSTERR

unexpected

job

The

process

caused

the

status.

(Cont)

Explanation

crash.

occurred

and

BUGCHK

and

command
op

command

code

PHYKLP

which

queue.

was

found

queue.

code
Bad

packet.

The

virtual

address

packet

is
invalid.
KLPBRC
INF
PHYKLP,
Read-Counters.
TOPS-20
removed
a
Read-Counters packet from response queue and

Bad

the
reason
value.
KLPCBN

INF

PHYKLP

not

KLPCBS

INF

PHYKLP

CHK

PHYKLP

CBUS

CSR

Result

LAR

CRAM's

field

not

contains

available.

get

the

last

address

PCB

error

word

EWORD4

PCB

error

word

PHYKLP

CBUS

CSR

Result

LAR

CRAM's

parity

last

address

error

word

EWORD2

PCB

error

word

PHYKLP

Can't

get

did

the

node

number

out

waiting
the

The

CI20

for

the

read

node

Read-Register

problem.

had

CONI

last

PCB

driver

was

read

error.

port

error.

EWORD1

port

The

illegal

CONI

last

parity

CBus.

EWORD3

CBus

KLPCGN

able

code

number.

The

CI20

command
to
get
the port;
it timed
reply.
Most likely,
the

from

STOPCODES
~-53-

Table
Name

Type

KLPCKE

CHK

PHYKLP

(Cont)

BUGHLT, BUGINF, BUGCHK

Message and Explanation

Module

PHYKLP

SET-CIRCUIT

retry

such

commands

error.

command

Set-Circuit command failed. TOPS-20 doesn't
because

the

port

always executes them properly. The port is
probably

in trouble.

STATUS - Status field of packet
FLAGS ~ Flags field of packet
OPC - Op code field of packet
KLPCLB

INF

PHYKLP

KLPCRR

CHK

PHYKLP

KLPCSR

INF

PHYKLP

function

buffer

STATUS

- Status word

status word

PHYKLP

failed.

find out.

Look

command

READ-REGISTER

the

failed.

There is a problem with the CI20 port.

PHYKLP - Grant CSR error. The port timed out

waiting

for Grant CSR.

last CONI

CSR - Result of

LAR - CRAM's last address read

CRAM1 - Contents of first CRAM word
CRAM2 - Contents of next CRAM word
KLPCVC

INF

PHYKLP

PHYKLP - Closed virtual circuit. TOPS-20 has
closed a virtual circuit to a remote node on
the

CI.

NODE - CI
KLPDED

CHK

PHYKLP

number

node

PHYKLP - CI20 is dead, no longer trying to

start it. TOPS-20 tried to restart the CI20

and the procedure failed twice in a row. The
CI20

is left in its current state.

ERROR - Error code for failure
KLPDPP

INF

PHYKLP

path

Data

error.

The

MOVER/FMTR detected a parity error.
CSR - Result of

port's

last CONI

LAR - CRAM's last address read
EWORDO - PCB error word 0

EWORD1 - PCB error word 1
KLPDRQ

INF

PHYKLP

PHYKLP - CI ucode dump requested. TOPS-20
be
decided

the

CI20

microcode

needs

dumped.

KLPDUM

INF

PHYKLP

PHYKLP - CI20 ucode dump before in progress.

DIAGS was executed before dumping the CI20
port's

microcode.

DFORK - Fork doing
KLPEBP

INF

PHYKLP

the dump

PHYKLP - EBUS parity error. Port received a
data word with bad parity from the KL. This
did not happen while processing a queue.

CSR - Result of

last CONI

LAR - CRAM's last address read
EWORDO - PCB error word 0

KLPEBQ

PHYKLP

PHYKLP - EBUS parity error. Port received a

data word with bad parity from the KL. This
happened while processing a queue.
CSR - Result of

last CONI

LAR - CRAM's last address read
EWORDO -~ PCB error word 0
EWORD1 - PCB error word 1

KLPELL

PHYKLP

PHYKLP - Error Log Lost. Can't get free
space to create ERROR.SYS entry for Error
Log

Message.

STOPCODES
~-54-~

Table
Name

Type

KLPELT

INF

BUGHLT,

Module

PHYKLP

BUGINF,

Message

PHYKLP

BUGCHK

and

Error

Message

was

(Cont)

Explanation

Log

Truncated.

truncated

Error

its

Log

ERROR.SYS

entry.

KLPEPB

CHK

PHYKLP

TOPS-20

(PPD

ERROR-LOGGING

received

PACKET

BAD.

error-logging

byte

packet

5)
that had an error.
The
is
returned
immediately to
the
free
The information it carried is lost.
STATS

Status

FLAGS

Flags

field

packet

OPC

code

field

packet

NODE
KLPERE

INF

PHYKLP

PHYKLP
not

KLPERQ

INF

PHYKLP

Node
-

get

EBUS

INF

PHYKLP

request

EBUS.

CS5R

Result

LAR

CRAM's

last

PHYKLP

got

interrupt

PHYKLP

Empty

packet

CI
a

error.

queue

packet

error.

INF

PHYKLP

Status

Flags

field

packet

code

field

packet

INF

PHYKLP

Node
-

failure

during

Self

Result

Microcode

LAR

CRAM's

REQUEST-ID
queue.
KLPHOG

HLT

PHYKLP

failed.

its

self-test.

last

hung.

command

There

large.

The

PHYKLP

port

had

response

set

problem

bit

timed

out

the

response

the

port.

queue

too

driver

timed

out

wvalue

the

isn't

what

the

1Invalid

and

with

value

KLIPA

but

read

The

was

expected.

INF

virtual

The

appear

Interlock

interlock,

KLPIBN

driver
buffer)

the

CONI

address

for

PHYKLP

CI20
named

version

last

CI20

waiting

the

packet

test

VER

PHYKLP

monitor

from

number

PHYKLP

CSR

KLPHNG

The
or

field

could

empty.

causes

OPC

The

packet

FLAGS

NODE
KLPFST

a
was

(message

with
an
error.
This
circuit to be closed.
STATS

port

read

queue.

remove

The

CONI

address

response

queue.

received

queue.

number

the

response

KLPERR

field

packet

buffer

name.

The

CI20

driver received a
packet
(message or named
buffer) with an Invalid Buffer Name error.
STATS

Status

FLAGS

Flags

field

OPC

packet

code

field

packet

NODE
KLPILP

INF

PHYKLP

field

Node

number

Software

PHYKLP

locally~generated
contains

packet

response

bit

off

packet.

The

response

whose

code

that the packet was queued by this host,
the software
response bit
is not set
there was no error.

KLPINP

INF

PHYKLP

Node

but
and

number

STATUS

Status

PHYKLP

Internal

inconsistency

NODE

queue

indicates

word
port

error.

performing.

CSR

Result

last

CONI

VER

Microcode

code

version

LAR

CRAM's

last

address

Port

operation

read.

found

was

STOPCODES
-55-

Table
Name

Type

KLPIPA

CHK

PHYKLP

(Cont)

BUGCHK

BUGINF,

BUGHLT,

Message and Explanation

Module

PHYKLP - Invalid packet arrival. CI20 driver
application packet from a node

received an
with which

ever

has

think

doesn't

communicated.

STATS - Status field of packet
FLAGS - Flags field of packet
OPC - Op code field of packet

CHK

PHYKLP

number

- Node

NODE
KLPIRD

data
remotely-generated
1Invalid
PHYKLP
request. CI20 driver received an error-free,
remotely-generated packet with op code 10,
illegal.

This

or 20.

12,

11,

STATS - Status field of packet
FLAGS - Flags field of packet
OPC - Op code field of packet

INF

PHYKLP

number

- Node

NODE
KLPIRP

bit

response

Software

PHYKLP

Response

packet.

remotely-generated

queue

contains a packet whose op code indicates
that the packet was queued by a remote host
response bit is set.

but the software
- Node

NODE

STATUS
KLPLBF

CHK

PHYKLP

number

Status word

PHYKLP - Loopback failed. CI20 driver tried
STAR
the
to
packet
loopback
a
send
to
coupler and

it had a non-path error.

STATS - Status field of packet
FLAGS - Flags field of packet
OPC - Op code field of packet

INF

PHYKLP

last CONI

the

CSR - Result
KLPLOA

loaded.
ucode
CI20
PHYKLP
PS: [SYSTEM]IPALOD.EXE was run or the monitor
initiated

reload.

the

EDIT - Edit number of microcode
KLPMBS

INF

PHYKLP

MBus

Multiple

error.

- MBUS

drivers

are simultaneously accessing MBus.
of

- Result

CSR

CONI

last

LAR - CRAM's last address read
CRAM1 - Contents of first CRAM word
CRAM2 - Contents of next CRAM word
KLPMCE

INF

PHYKLP

error.

with

MDATREC

code.

error

the

Check

MCNF

Received

NODE - Node number of the CI node
STATUS - Status word of the packet
KLPMCR

CHK

PHYKLP

NODE - Node

number of CI

PHYKLP

spurious

from

Either

it.

function timed out,

or
HLT

MDATREC

expecting

maintenance
gave

KLPMTY

not

MCNF

Received

when

KLIPA

the

the KLIPA

one.

that sent MCNF

node

MDATREC

PHYKLP

empty.

Queue

Packet

with

the pointers on

queue but

want

trace

the queue

1is

empty.

KLPNDE

CHK

PHYKLP

driver
node
a

received
The

number.

free

bad

packet

node

was

with
not

queue.

STATS - Status field of packet
FLAGS - Flags field of packet
OPC - Op code field of packet
NODE

Node

number

number.

CI20

invalid

returned

STOPCODES
-56-

Table
Name

Type

KLPNDG

INF

BUGHLT,

Module

PHYKLP

HLT

PHYKLP

but

PHYKLP

CHK

PHYKLP

datagram

buffer

queue

CI20

needs

waiting

PHYKLP

the

CI20

(Cont)

Explanation

the

microcode

timeout
KLPNEN

BUGCHK

and

remove

queue
KLPNDM

BUGINF,

Message

buffer.

from

was

the

TOPS-20

tried

datagram

free

empty.

ucode

needs

dumping.

Port

dumped

but

for

not

get

enabled.

should

there

TOPS-20

enabled

INF

PHYKLP

remove

but
KLPNOA

CHK

PHYKLP

HLT

PHYKLP

message

buffer

queue

PHYKLP

Remote

node

buffer.

from

was

the

TOPS-20

Remote

port

1is

not

REQUEST-IDs

Remote

system

Remote

CALL

port

Can't

SC.ALD

queue

answering.

asking

tried

message-free

PHYKLP

found

empty.

sending
IDRECs.
checked.
PORT

KLPNOD

the

believes

but

otherwise.
KLPNMG

started.

but

not

needs

free

queue.

number,

stock

failed.

datagram
SCA

can't

handle

the

request.

KLPNOM

HLT

PHYKLP

Physical

address

doesn't

match.

Physical

address
of
a
packet
is
stored
in
the packet.
The physical address of this
packet doesn't match what is in the packet.
KLPNRL

HLT

PHYKLP

microcode

JOB

KLPNSB

HLT

PHYKLP

HLT

PHYKLP

Packet

The

which

when

the

called

with

bad

packet

was

Status

Flags

field

packet

code

field

packet

Node
-

field

INF

PHYKLP

CHK

PHYKLP

virtual

CI.

NODE

node

PHYKLP

PCB

PHYKLP

CI20

longer

knows

its

Result

PHYKLP

driver
byte.

virtual

STATS

OPC
PPD

corrupted.

lost

last

with

packet

its

interrupt
the

Packet

code

Node

PPD

node

PCB

has

invalid

PIA.

The

CI20

CONI
PPD

packet

with

field

not

assignment.

bad

was

number

byte

TOPS-20

remote

number

has

Status

Op
-

CI20

invalid

circuit.

byte.

The

CI20

an invalid PPD
returned to a free

queue.

NODE

was

packet

circuit

received
The

number

Opened

the

CSR
KLPPPD

returned

data.
KLPPIA

isn't

op-code.

with

not

Op
-

OPENVC

OPC

PHYKLP

started.

OPENVC.

FLAGS
-

there

address

open

Port

but

get

block

queue.

opened

HLT

block

was

received

code.

NODE

KLPPCB

OPENVC

problem.

system

Trying

PHYKLP

STATS

PHYKLP

closed.

free

INF

reloading.

reloaded

for

system

driver

KLPOVC

has

with

needs

waiting

closed.

CHK

called

not
KLPOPC

ucode

needs

probably

PHYKLP
was

KLPONC

CI20

time-out

packet

STOPCODES
-57~-

Table

Name

Type

KLPPPE

INF

PHYKLP

KLPPRI

HLT

PHYKLP

KLPRAE

INF

PHYKLP

(Cont)

BUGCHK

BUGINF,

BUGHLT,

Message and Explanation

Module

PHYKLP - PLI parity error. The port detected
bad

parity on a

CSR

LAR

- CRAM's

read.

BUS

PLI

Result

CONI

last

read

last address

PHYKLP - Invalid priority. KLPSND was called
invalid

with

priority.

Port found Attention up but the packet was
not totally stored in the receive buffers.
of

- Result

CSR

CONI

last

VER - Microcode version
LAR - CRAM's last address

KLPRCE

CHK

PHYKLP

KLPRRQ

INF

PHYKLP

KLPRSF

INF

PHYKLP

There

PHYKLP

READ-COUNTERS

CI20

PHYKLP

reloaded.

restart the CI20 and the procedure failed.

PHYKLP

failure

for

PHYKLP - Received shutdown message. A CI
node notified our node that it is closing
VC.

our

INF

requested.

PHYKLP - CI restart failed. TOPS-20 tried to

- Node

NODE

KLPSCE

port.

CI20

reload

ucode

failed.

command

the

a problem with

ERROR - Error code

INF

read

TOPS-20 has decided the CI20 microcode needs
to

KLPRSH

error.

attention

receive

Spurious

PHYKLP

number

Channel

error.

channel

Spurious

PHYKLP -

was asserted but no channel error
information was in the channel logout word.

Error

CSR

CONI

last

- Result

VER - Microcode version
LAR - CRAM's last address read
LWORD1 ~ CHANNEL LOGOUT WORD 1

KLPSCR

CHK

PHYKLP

received.

command

SET-CIRCUIT

PHYKLP

SET-CIRCUIT
error-free
an
response queue. CI port done

found
TOPS-20
command on the

did something wrong because the response bit
is never set, so this packet should not be
seen.

STATUS - Status field of packet
FLAGS - Flags field of packet
OPC - Op code field of packet

KLPSDM

KLPSRL

CHK

PHYKLP

for

PHYKLP - CI20

KLPSRM

INF

PHYKLP

still

ucode

time-out waiting

not

reloaded

for

that

HSC.

- Node

the

number

RESET NODE - Node number
remote

node

PHYKLP

REMOTE NODE

PHYKLP

time-out

reloading.

and

there

to complete.

did

node

remote

the

HOST NODE

INF

The

PHYKLP - Cannot start remote node. This node
wanted to start a remote HSC node, but it is
on

KLPSTP

Port

dumping.

complete.

microcode

port

there

and

is dumped
it

still

ucode

CI20

PHYKLP

waiting

microcode

- Remote's

CI20

stopped.

last

Reset

this

system

that

node

last

Remote

reset the

number

TOPS-20

stopped

the

CI120.

KLPSTR

INF

PHYKLP

PHYKLP - CI20 started. TOPS-20
CI20.

restarted the

STOPCODES
-58-

Table
Name

Type

KLPSWC

INF

KLPSWO

BUGHLT,

Module
PHYKLP

PHYKLP

BUGINF,

Message
PHYKLP

short

word

CSR

Result

LAR

CRAM's

Short

count.

CBUS

last

address
word

EWORD2

PCB

error

word

PHYKLP

Received
a

read

START

virtual

Start

packet

when

circuit

while

PHYKLP

was

open.

because

the

Node

PHYKLP

circuit

number

Spurious

transmit

attention

Port found Attention up before
Packet function completed.

CHK

open.

NODE

KLPTIM

detected

error.

CONI

last
error

closed

Port

channel

PCB

was

PHYKLP

word

count

received

INF

(Cont)

Explanation

EWORD1

TOPS-20

KLPTAE

BUGCHK

and

CSR

VER

Microcode

LAR

CRAM's

Result

REG

Transmit

PHYKLP

last

CONI

address

status

Timed

out

KLIPA

driver

interlock

should

read

interlock.
microcode

error.

Transmit

version

last

get

the

waiting

timed

for

never

for

out

Qqueue

trying

queue.

have

the

KLIPA

1lock

this

long.
QUEUE

Address

the

queue's

interlock

word
KLPTMO

INF

PHYKLP

hogging

Transmitter

the

transmit

KLPTPE

INF

PHYKLP

KLPUMV

INF

PHYKLP

continuously

REG

Transmit

VER

Microcode

PHYKLP

CSR

REG

Transmit

Microcode

Result

buffer

picked

last

parity

Data

error.

the

bit

Transmit

Bus.

CONI

status

version

PHYKLP

had

unplanned

Unplanned

CSR

Result

LAR

CRAM's

last

CRAM

CRAM
last

parity

error.

Port

error.

CONI

address

CRAM]1

Contents

first

CRAM2

Contents

read
CRAM
CRAM

word
word

Unexpected

CI20

microcode

monitor

assembled-in

value

which

expecting

has

microcode
The

different

PHYKLP

not

detect

version

Transmit

VER

could

CONI

status

the

Someone

carrier

asserted.

last

Transmit

dropped

load.

INF

Result

CI20

KLPUPC

module

due

Buffer

INF

Link

being

timeout.

The

the

CSR

was

KLPUCP

CI.

over

microcode

version.

just

The

1loaded

1is

the
to
a

version.

AVER

Actual

EVER

Expected

version

loaded

version

PHYKLP

error.

Port

but

Undefined

CSR

Result

LAR

CRAM's

last

had

not

planned

CRAM

parity

defined.
last

CONI

address

CRAM]1

Contents

first

CRAM2

Contents

read
CRAM

CRAM

word

parity
error

STOPCODES
-50-~

Table

Name

Type

KLPVIR

CHK

BUGHLT,

Module

BUGINF,

BUGCHK

Message and

(Cont)

Explanation

PHYKLP

PHYKLP - Virtual address
The
virtual
address

in
of

packet is wrong.
a
packet
is

incorrect.
This
indicates
some
inconsistency in one of the queues,.

QUEUE

Address

the

queue's

sort

interlock

word

VMA

Contents

the

software

Physical

address

word

the

packet

PMA

FLINK

KLPWAB

INF

PHYKLP

INF

PHYKLP

INF

PHYKLP

from

CI wire A
loopback

succeeded,

failed

Status

Flags

OPC
CSR

Op code field
Result of the

pointed

good to
already

packet

of packet
last CONI

PHYKLP - CI wire A has gone from
good. A loopback packet that already

PHYKLP bad.
A
succeeded,

returned

CI wire B
loopback
failed on

Status

PCB

wire

field

word

has gone from
packet
that

FLAGS

successfully

KLPWBB

word

PHYKLP bad.
A

STATS

KLPWAG

FLINK

STATS

FLAGS
OPC CSR -

- Flags field
Op code field
Result of the

wire

has gone from
packet
that
wire B.

field

bad to
failed,

good to
already

packet

of packet
of packet
last CONI

KLPWBG

INF

PHYKLP

PHYKLP - CI wire B has gone from bad to
good. A loopback packet that already failed

KNIADE

HLT

PHYKNI

PHYKNI
-~ Multicast address disable
error.
NIDPT got an error from NIDRA when trying to
was
that
address
multicast
a
disable

KNIADR

CHK

PHYKNI

Monitor address does not match KLNI

has

successfully

supposedly

returned

wire

enabled.

address.

PHYKNI just read the Ethernet address from
the KLNI and found it different from the
shadow copy stored in the monitor.

KLNHIO

KLNLO

MONLO

KLNI's

copy

Ethernet

address

MONHIO
Ethernet

KNIBFC

KNIBLV

HLT

PHYKNI

FUNC

HLT

PHYKNI

copy

the

Illegal

with

function

bad

code.

function

NISRV

code.

The

Tl.

Illegal

function

code

PHYKNI - Buffer length violation. BSD chain
contained
inconsistent
length
information
for

KNIBTB

Monitor's

address

called
code

the

transmit

caused

it.

PHYKNI

Bad

BYTAB

receive

entry.

command

BYTAB

that

has

been

fetch

this

corrupted.
ENTRY

BYTPTR
entry

Corrupted

Byte

entry

pointer

used

STOPCODES
-60~-

Table
Name

Type

KNICAE

INF

BUGHLT,

Module
PHYKNI

BUGINF,

Message

BUGCHK

and

PHYKNI

CBUS

unable

acquire

available

timeout.

control

microseconds

request.

(Cont)

Explanation

from

KNILDR

the

dumps

NIA20

the

CBus

start

and

was

within

CBus

restarts

the

NIA20.

CSR

ADDR

KNICCF

INF

PHYKNI

CONI
-

KNI

Address

LOGOUl

Channel

LOGOU2

Channel

PHYKNI

did

detect

not

parity

logout
logout

Carrier

error

word

check

it's

1
2

word

failed.

own

carrier

NIA

module

while

was

transmitting.
TDR
KNICDF

CHK

PHYKNI

TDR

value

PHYKNI

H4000

did

signal

Collision
not

transmission.
the
KNICFF

CHK

PHYKNI

unable

tried
ERROR

JSYS
KNICFP

HLT

NISRV

Cannot

Error

Cannot

PHYKNI

INF

NISRV

also

detect
of

known

H4000).
the

dump

KLNI.

the

from

portal

Monitor

Was

when

port.

RUNDII

block

1list

block

CBUS

CONI

find

(probably

during

portal

during

data

dumps

error.

that

and

NIA20

was

read

restarts

portal

the

detected

over

the

NIA20.

KNI

Address

parity

error

LOGOUl

Channel

logout

word

LOGOU2

Channel

logout

word

KNIDMD

close.
block

address

parity

for

KNILDR

block

parity

ADDR

KNIDM1

failed.

SYSTEM:KNILDR.EXE

unable

Portal

CBus.
CSR

the

code

find
was

PHYKNI

bad

signal

reload

find

reload

the portal
callback.

INF

<check

collision

completion

error)

NISRV

KNICPE

(This

the

after

"Heartbeat"

PHYKNI

detect

assert

shortly

continued.

Additional

data

for

KNIDMD.
PROTO

KNIDMD

INF

NISRV

Protocol

Portal

not

type

enabled

portal
received
a
address
it wasn't
is

KNIDOV

CHK

PHYKNI

discarded,

HIDST

High

LODST

Low

HISRC

High

LOSRC

Low

PHYKNI

and

the

order
order

NIA

buffer

source
source

buffer

PHYKNI

(5)

NIA20

for

data

exceeded.

data

dumps

address

NIA

space

CSR

CONI
-

error.

module

did

store

Threshold

parity

errors

was

and

restarts

the

NIAZ20.

ADDR

re-used.
address

address

path

mover

KNILDR

on
an
frame

PHYKNI

overrun.

have
enough
free
incoming datagram.

INF

multicast.

destination

not

KNIDPE

this

destination

order
order

for

multicast
frame
for.
The

enabled

KNI

Address

parity

error

LOGOUl

Channel

logout

word

LOGOU2

Channel

logout

word

STOPCODES
-61-

Table

Name

Type

KNIEPE

INF

PHYKNI

- EBUS parity error.

word

with

dumps

and

INF

PHYKNI

EBUS
get

unable

milliseconds
KNILDR dumps

KNIERP

HLT

NISRV

parity
logout
logout

error
word
word

request

timeout.

parity

Channel

logout

word

LOGOU2

Channel

logout

word

error

return

from

ERROR

INF

PHYKNI

Error

CSR

ADDR

INF

PHYKNI

returned

NISRV

while

from

got

processing

The error
in Tl.

code

(one

PHYKNI,

PHYKNI
NIA20
free
buffer
1list
parity
error. NIA receive status indicated that
there was a free buffer list parity error.
KNILDR dumps

KNIFQE

PHYKNI.

from PHYKNI

a state change callback.
of the UNxyz% errors)
is

KNIFBE

was

error

within

after
making
a
PI
request.
and restarts the NIA20.

Address

Illegal

NIA20

EBus

the

control

1
2

LOGOUl

KNILDR

KNI

CONI

CSR

ADDR

- Channel
- Channel

PHYKNI

received a

EBus.

NIAZ20.

the

KNI

Address

LOGOUl
LOGOU2

NIA20

the

from

parity

bad

restarts

CONI

CSR

ADDR

KNIERE

Explanation

Message and

PHYKNI

(Cont)

BUGCHK

BUGINF,

BUGHLT,

Module

CONI

and

restarts

the

NIA20.

parity

crror

KNI

Address

LOGOUl

Channel

logout

word

LOGOU2

Channel

logout word

PHYKNI

Free

packet

for

Queue

Error.

KLNI

received

were

- Failed self test. When the NIA20

protocol,

available

packets

free

and

there

that

for

protocol

type.

KNIFST

INF

PHYKNI

out
check
to
self-test
a
runs
it
idle
(such as the ALU,
various pieces of logic
data
the
and
microseguencer,
the
a
performs
also
It
mover/formatter).
self-test when it is first started. In one
of those cases, the self-test failed. KNILDR
dumps

and

CSR

CONI

ADDR

KNIFTL

CHK

PHYKNI

HLT

PHYKNI

Address

- Channel
~ Channel

PHYKNI

- Frame

PHYKNI
send a

INF

PHYKNI

NIA20.

sent

parity error
logout word 1
word 2

logout

too

long.

frame

NIA module detected

longer

than

1536

bytes.

- Frame too short. Port was told to
frame with less than 46 bytes of user
(CMPAD) was
flag
detected this.

data and the pad
NISND should have

KNIGCE

the

KNI

LOGOUl
LOGOU2

that

KNIFTS

restarts

not

set.

PHYKNI - Grant CSR timeout. NIA20 was unable
to control the CSR (CONI word) within 10
KNILDR
1it.
requesting
after

milliseconds
dumps

and

CSR

CONI

ADDR

LOGOUl
LOGOU2

restarts

the NIAZ20.

KNI

Address

- Channel
- Channel

parity
logout
logout

error
word
word

1
2

STOPCODES
-62-

Type

KNIHED

CHK

BUGHLT,

Module
PHYKNI

BUGINF,

Message
PHYKNI

hardware

it's

KNIICA

CHK

HLT

PHYKNI

CONI

HLT

PHYKNI

was

HLT

PHYKNI

Illegal

specified

Mode

PHYKNI

was

Bad

channel

Bad

portal

PHYKNI

unknown

CODE

read

KNIIFD

CHK

PHYKNI

CHK

PHYKNI

address.

portal

the

error

that

and

function.

detected

field

C1lFNC

code.

Port

contained

inappropriate

command.

code

PHYKNI

called

the

not

handle.

yet

FNC

illegal

Command

BLKADR

KNIINF

code

Error

block

counters

port

response
the

this

routine

a
for

problem)

address

error

code

are

address

callback

Illegal

generated

mode.

for

block
block

Illegal

counters

time

<channel

address

CMD

LOCLSB)

specified.

1Illegal

block

addressing

ADR

error

and

(ADDR)

KNI

(Microcode

illegal function code
the command block.
KNIIEC

ERROR,
This

address

out.

mode

Read

The

(LOCMSB

addressing
-

MBUS

detected.

problem.

contents

Channel
invalid.

KNIICF

detected.

ERROR

CONI

PHYKNI

(Cont)

Explanation

error

PARITY

printed

KNIIAM

Hard

EBUS

KLNI

and

BUGCHK

and

Illegal

with

Function

PHYKNI

function

driver

KLNI

block

set

from

DLL.

function

NIDLL

does

out.

KLNI

address

code
initialization

timed
out
during
"disable
complete"
didn't

(the

timed

1Initialization.
or

CONI

"enable

indicates

Either

complete"

which).

This

is probably a hardware problem,
because the
microcode
version
number
was
valid,
and
there
was
no
specific
error
indication
in
the CONI.
CONI

KNIIPE

INF

PHYKNI

CONI

PHYKNI

KNI

Internal

port

inconsistency

performing.

many

The

error.

things,

but

did

occur

function

logical.

NIA20

not

KNILDR

detected

operation

inconsistency

the

can

result

correctly

dumps

and

was

caused

that

the

was

not

restarts

the

NIAZ20.

CSR

CONI

VERSION

ADDR
KNIIPF

HLT

PHYKNI

driver

was

function
KNIIPT

HLT

PHYKNI

HLT

PHYKNI

that

was

PTYPE

type

able

dispatch.

perform
to

protocol

was

number

KLNI

PHYSIO

do.
type

specified

close.

the

enabled.

status

the

STATUS

Illegal

version

error

channel

not

Specified

contained

parity

called
is

NOT

Illegal

from

microcode

Illegal

protocol

KNIIRC

KNI
NIA20

Address

protocol
on

unexpected

function.

Status

type

close.

Status

value

upon

field

return

Table
Name

STOPCODES
-63-

Table

Type

Name
]

KNINBS

[]

HLT

PHYKNI

Message and Explanation

this

PHYKNI

style.
Buffer

PHYKNI

address

control

Port

Storage

interrupt

level.

NON-BSD

sent.

The driver does not

style datagram was sent.

BUFFER

HLT

datagram

Non-BSD

PHYKNI
send

KNINIB

(Cont)

BUGCHK

BUGINF,

BUGHLT,

Medule

interrupt

buffer

block

(PS)

was

set

not

up with the address of a UN block to be used
at

KNIPER

CHK

PHYKNI

PHYKNI - CRAM parity error.

CONI

ADDR

Parity

PHYKNI

KNIQUE

CHK

PHYKNI

KNIRFD

INF

PHYKNI

KNIRLF

CHK

PHYKNI

KNISCE

INF

PHYKNI

error.

parity

- Queue

routine

header

than

five

detected

after

entry.

REMQUE was

queue

was

called.

address

Remote

PHYKNI

empty

Queue

empty when the

defer.

failure

NIA
the
after
detected
was
collision
"acquired" control of the Ethernet cable.
A
collision."
This is also known as a "late
the
during
occur
only
may
collision
This
preamble.
frame
a
of
transmission
is
collision
the
when
occurs
problem

TDR

PHYKNI

the NIA20.

PHYKNI

QUE

CHK

This

parity errors occurred when reading data
over the PLI interface. KNILDR dumps and
restarts

KNIRIT

detected a

address

error

PLI

PHYKNI

RAM.

LOCLSB - Memory location contents

LOCMSB &

INF

KLNI

problem.

hardware

KNIPIE

it's Control

parity error

the preamble was

sent.

value

- TDR

PHYKNI - Response queue interlock timed out.
the
get
not
did
PHYKNI
interlock after 5000 tries.

PHYKNI

but

KLNI

failed

STATE

State

Reload

reload
of

response

Failed.

the

KLNI.

KNILDR

queue

ran,

KLNI

PHYKNI - Spurious channel error. A spurious

channel error occurs when the channel raises
the error signal, but no error bits are
error
This
area.
1logout
channel
the
in
occurs after the threshold (5) of spurious
channel errors is exceeded. KNILDR dumps and
restarts
CSR

the NIA20.

CONI

KNI

ADDR - Address of parity error
LOGOUl - Channel logout word 1
LOGOU2 - Channel logout word 2

KNISTA

INF

PHYKNI

PHYKNI - NIA20 spurious transmit attention.

NIA

module

CSR

set

the

PLI

transmit

attention

was
status
transmit
the
but
bit,
KNILDR dumps and restarts the NIA20.
CONI

zero.

KNI

ADDR - Address of parity error
LOGOUl - Channel logout word 1
LOGOU2 - Channel logout word 2

KNISTP

CHK

PHYKNI

PHYKNI - KLNI STOPPED.
after
-

CONI

LAR

five

CONI

No response from KLNI

seconds.
KNI

Latched

Address Register

STOPCODES
-64-~

Table
Name

Type

KNISWC

INF

BUGHLT,

Module
PHYKNI

BUGINF,

Message

PHYKNI

NIA20

INF

PHYKNI

(Cont)

Explanation

Channel

completes

short

word

CBus

transfer,

the

error.

KNILDR

has
and

a short word count
restarts the NIA20.

CSR

—

CONI

ADDR

KNIUBE

BUGCHK

and

count.

the

channel

dumps

KNI

Parity

error

address

LOGOUl

Channel

logout

word

LOGOU2

Channel

logout

word

PHYKNI

When

NIA20

error.

Port

while

reading

list.

wused

buffer

received

the

NIA

1list

PLI

parity

module's

error

user

buffer

This
threshold

(5)

for

this

type

exceeded.

KNILDR

dumps

and

restarts

error

only

reported

after
error

a
is

the

NIA20.

CSR

ADDR

KNIUOP

HLT

PHYKNI

parity

error

Channel

logout

word

LOGOU2

Channel

logout

word

PHYKNI

Unknown

response.

response

RESP
INF

KNI

Address

KNIUPE

CONI
-

LOGOUl

don't

know

The

error.

NIA20

range

falls

into

TOPS-20.

unknown

got

7750

this

CRAM

planned

CRAM

parity

error

7777.

This

range,

but

—

KNIVAR

CHK

PHYKNI

KNILDR

dumps

and

PHYKNI

parity

logout

word

LOGOU2

Channel

logout

word

variables
do
not
match
KLNI
variables.
PHYKNI
just
read
some
status
variables
from
the
KLNI
and
found
them
different
from the
shadow copies
stored
in
monitor.
-

KLNI's

MON

Bad

KLNI

version

Monitor's

version

microcode

version
that

the

variables

the

version.

variables

PHYKNI

number

from

below

the

level
required
port/driver operation.
The
start

this

Major

BADMAJ

port

proper
does not

case.

version

number

read

from

KLNI

Minor

version

number

read

from

KLNI

Major

version

number

GODMIN

require

Minor

version

number

require

PHYKNI

NIA20

transmit

ADDR

until

error

restarts
CSR

transmit

status

parity

reported

LATSRV

and

for

BADMIN

buffer

CHK

the

minimum

GODMAJ

NIA

LAPRBF

read

KLNI,

the

revision

PHYKNI

to
the

Monitor

determined

INF

the

error

Channel

microcode

KNIXPE

known

KNI

Address

the

CHK

CONI

not

restarts

LOGOUl

KLNI

KNIVER

parity

particular

NIAZ20.
CSR

gave

Response

PHYKNI

ADDR

port

about.

is
the

CONI
-

buffer

This

threshold

exceeded.

(5)

KNILDR

error.

transmit
1is

not

this

type

dumps

and

NIA20.

KNI

Address

parity

error

Channel

logout

word

LOGOU2

Channel

logout

word

Specify

Receive

received
trying to

an
post

error

LOGOUl

DLLERC

parity

indicated

error.

Error

Buffer

error

receive

code

Failure.

from

NISRV
buffer.

returned

NISRV

LATSRV
while

STOPCODES
65—

Table
Name

Type

LATICB

CHK

BUGHLT,

Module
LATSRV

BUGINF,

Message
LATCBR
LATSRV

CHK

LATSRV

CODE

LAT

Illegal

Function

CHK

LATSRV

out

MSGID

with

illegal

NISRV

called

with

the

1invalid

code

Message

message

type

NISRV

code.

routine

code.

circuit

LATINE

from

function

callback

function

(Cont)

Explanation

<called

callback

LATIMT

BUGCHK

and

was

Message

LATINI

Type.

LAT

received

wvirtual

with

message

range.
type

failed

obtain
enough
databases.
HN.LST

words

CBMAXI

words

initialize.

memory

for

the

host

CBVECT,and

Could

not

LAT

host

the

node

database,

NTTLAH

words

for

SBVECT.
LATIST

INF

LATSRV

LATNSC

INF

LATSRV

LAT Illegal Slot Type.
LAT
with Slot type out of range.
SLTID

LAT

Slot

Host

stopped

LGFAIL

INF

MEXEC

CODE

log

stopped
circuit.

Reason

LGOUT

succeeded.

circuit.

JSYS

job

failed.

fails

The

when

probable

Host

attempt
=hould

terminals

have

been

TTYSTPed,

JSYS

was

tried.

then

- Terminal

LSTERR
LLIBWK

CHK

LLINKS

Reason

tq
have

tha

LGOUT

attempt

detach the terminal, then logout the
made.
If either of these fail,
the
put in a permanent wait state.
JOBPT

node

{t
cau.e

LAT

code

in/out

received

node

the

Slot

job
Jjob

is
is

number
of the failure

SCTNSF

call
from
sched
w/o
lock.
DECnet
point NSP
was
called
from
scheduler
level when the NSP interlock was locked.
This should never happen.
entry

CALLER
the
LLIDIR

CHK

LLINKS

Address

routine

that

requested

interlock

Duplicate Interrupt Message Received. There
is a duplicate
interrupt message on
the
unacked

not
not

interrupt

receive

queue.

This

should

happen because the NSP interlock should
release with anything on the receive

queue.

LLIFNS

CHK

LLINKS

ELPTR

Pointer

block

ESPTR

Pointer

block

MBPTR

Pointer

message

SCTL

passed

LLINKS

LLIFZM

CHK

LLINKS

bad

NSPpid.

ID.

SCLINK,

ELPTR

Pointer

Tried

free

This

memory

zero

block

Session

manager

the

bad

msg.

control

coding

gave

error

problem.

ELB

FREMSG

was

requested

to free a message. However,
the pointer to
the message block was zero. This is a coding
error in LLINKS.
LLIHTG

HLT

LLINKS

INIHSH

cant

get

hash

table.

initializes
the
LLINKS
failed to get memory for

the

wvalue

reasonable,

for

the

this

should

Routine

that

1link
hash
table
the hash table.
If

hash
never

table
fail.

size

STOPCODES
-66-

Table
Name

Type

LLIHTS

HLT

BUGHLT,

Module
LLINKS

NSPHTS

for
LLITFC

LLIORC

CHK

LLINKS

BUGINF,

Message

BUGCHK

and

(Cont)

Explanation

not

the

set up. Monitor
hash table size.

has

type.

illegal

requested

flow

control

type

was

higher

Illegal

layer

Inspect

the

caused

the

include

should
stack

bad

dump

checked

find

the

value.

the

Submit

ELPTR

Pointer

Pointer
Pointer

to
to

ES block
message block

should

requested

never
that

that

SPR

and

data.

block

flow
this.

path

additional

ESPTR
MBPTR
ORC

value

transmit.

have

and

bad

negative.

message

LLINKS

returned

has
from

ROUTER
after
transmission.
ROUTER
just
returned such a message to
LLINKS,
but
the
count of outstanding messages was zero.
LLIPIM

CHK

LLINKS

PROCXQ

found

being

resent

resend

the

MBPTR
the
CHK

LLINKS

had

was

good when
time.

LLIQIN

illegal

message

bad

overwritten
queue.

the

The

message

Pointer

bad

message

Queued

interrupt

asked

message
sent

message

block

The

waiting

type
the

was

first

describing

illegal.

two

message

type.
was

was

message

transmit

type.

message
while

LLINKS

interrupt

was

messages

simultaneously. A maximum of one is allowed.
This is a software problem., Submit an SPR if
it

LLIS2S

CHK

LLINKS

happens

dump

ELPTR

the

block

message

Il1legal

flow

control

receive
had

type

was

queue

sent

have

happen.

ELPTR

flow

found

Address

block

Address

block

Message

block

NSPEVT

routine

type.,

well

control

The

supplied
may

LLINKS.

when

remote

type,

the

message

this

should

address

NSPEVT.

NSPEVT

illegal

PRCRQS

ESPTR

event

Therefore,

MBPTR

Unknown

data.

block

processed.

bad

been

include

PRCRQS.

found

was

routines.

never

and

additional

Address

and

LLMOP

once,

Address

should

CHK

block

parsing

LLMCIF

the

node

LLINKS

and

ESPTR

flow

CHK

than

MBPTR

the

LLITNE

more
system

Address

The

caller

bad

called

event
by

caller's

the

class

SCLINK

address

the

stack.

EVC

Event

class

EVT

Event

type

LLMOP

Read

attempt

failed

to read the Ethernet channel status
when the Data Link Layer was called.

DLLERC

Channel

The

error

DLL.LLMIL1,INF
Loopback
message

that

remote

MSGLEN

Failed.

code

was

This

LLMOP
too

short

MOP

was

LLMOP

from

Received

received

returned

LLMOP,LLMOP

Message.

formatted.

Info

the

Invalid
loopback

improperly

protocol

violation

node.

Received

message

length

HIORD

Ethernet

address

(high

LOORD

Ethernet

address

(low

order
order

bits)
bits)

STOPCODES
-67-

Table
Type

Name

LLMILF

INF

BUGHLT,

LLMOP

BUGINF,

Message

Medule

LLMOP

Invalid

received
a

This

node.

FUNCOD
node

node
INF

LLMOP

code

the

transmitting

address

the

transmitting

Invalid

LLMOP

that

MSGLEN

data

violation by

address

Received

improperly

LLMOP

neither

forward

order)

violation

INF

order)

(low

LLMOP

Code.

that was

a MOP protocol

Ethernet

Message.

LLMLXF

Function

message

Function

message

Ethernet

(high

LOORD -

LLMIR1

Loopback

message.

HIORD -

(Cont)

Explanation

loopback message

loopback
remote

BUGCHK

and

received

was

too

formatted.
by

This

remote

Received

Remote

Console

remote

console

short,

too

long,

a MOP

was

protocol

node.

message

length

LLMOP
Loopback
Transmit
Failed.
unable to transmit a forward data

LLMOP
was
message.

DLLERC

DLL

STATUS

Error

code

Channel

returned

status

from

returned

from

the

DLL

CHANNEL
occurred
LLMMCF

LLMOPF

CHK

LLMOP

Channel

Layer

was

DLLERC

LLMOP

Open

DLLERC
LLMOP

LLMOP

failure

code

Portal

returned

Failed.

the Data

portal with

Error

code

from

returned

the

LLMOP

Layer.

Link

from

DLL

failed

the

DLL

LLMOP RB Queue Corrupted. LLMOP tried to
from an empty
entry
an RB queue
remove
queue. It is also possible that the RB was
not

INF

the

called.
Error

the

RBADDRESS
LLMRRF

which

LLMOP Declare Multicast Address Failed.
A
LLMOP
attempt
to
declare
the
Assistant
Multi-Cast Address failed when the Data Link

open an NI

LLMRQC

queue.
- Address

LLMOP

Response

unable

send

DLLERC

Error

CHANNEL

Transmit
MOP

code

Channel

queue

request
returned

entry

Failed.

LLMOP

was

message.
from

which

DLL

the

failure

occurred
LLMRXF

CHK

LLMOP

LLMOP Resource Failure. LLMOP was not able
to obtain resources from the memory manager.

LLMSB2

CHK

LLMOP

LLMOP
could
Link

LLMSCA

INF

LLMOP

Specify Receive Buffer Failure. LLMOP
not post a receive buffer to the Data
Laver.

DLLERC

LLMOP

Ethernet

Error

code

CHAN,ADDR1,ADDR2.
on

change

CHANNEL
LLMSTC

INF

LLMOP

from DLL

Address

was

Change

called

NIDDL

state.

Channel

data

returned

Channel

link

number

state

change.

LLMOP

was

state.

This

message
is
for
information
corrective action is required.

only.

called

CHANNEL
PTRLID
STATUS

NIDDL

- Channel
-

Portal
Status

change

number

ID
bits

STOPCODES
-68~

Table
Name

Type

LNGLNG

HLT

BUGHLT,

Module
DISC

BUGINF,

Message
NEWLFP

file

File

HLT

LLMOP

going

long

indicates

1Invalid

(Cont)

Explanation

becoming

This BUG
long.

LPRIXC

BUGCHK

and

Xmit

already

for

that

the

long.

first

file

Complete.

time.

already

NIDLL

called

back to LLMOP with a transmit complete event
for an RB which is not in Transmit Initiated
state. This is software bug.

LPRLXF

INF

LLMOP

RBSTT

Current

UNSTA

Status

LLMOP

Loop

was

state

the

Request

unable

block

Transmit

transmit

Failed.

LLMOP

forward

data

message.

DLLERC

Error

CHANNEL

code

returned

Channel

from

which

DLL

the

failure

invalid

function

occurred

LPSIFC

CHK

LLMOP

LPSCBR

called

code.

LLMOP

Loopback

with

Protocol

Server

Call

Back Routine was called by the Data
Link
Layer
with
an
1invalid
callback
function
code. This is a software bug.
FUNCODE

Function

code

MACBTO

INF

DIAG

DIAG - Close buffer
buffer
operation
completion.

MARK1

HLT

PAGUTL

BADCPG

the

MONBKB

CHK

MEXEC

SPT

Not

OFN.

index

not

pointing

SPTIDX

SPT

index

COREPG

Core

page

Cannot

set

tried

MONNEJ

CHK

SCHED

Last

need

CHK

PHYMSC

This

BUG

process

indicates

Monitor

monitor
that

the

error

coding

context

which

LLMOP

Received

LLMOP

Remote

have

because

locks

that

flags

faulty

Console

MOP

<code.
by

This

FUNCODE

Function

code

PHYMSC

Online

node

already

online.

remote

MOP

Node

Connect

SBI

System

block

done
The

MOP

Server

invalid

protocol

node.

SCAMPI

CID

was

message.

with

event

told

was
coming
back on-line
it is already on-line.

NODE

JSYS

Protocol

message

function

nested

invalid

violation

node
that

practice

may

released.

Processor

received

MSCAOL

but

OFN.

number

required

the

PC
LLMOP

error

An
illegal
the previous
context
1is
the
monitor
but
no
ERJMP
is
present following the nested JSYS call. This

FLAGS

INF

Nested
JSYS
without
ERJMP.
instruction trap occurred and

violates

MOPIFC

error
interrupt.
interrupts
on
the

enable

OFN

monitor

error channels.
AIC failed.
LSTERR

timed out.
DIAG
close
timed
out
before

number

index

while

node

that

this

but

think

STOPCODES
_69_

Table

Name

Type

MSCAVA

INF

MSCBAD

HLT

BUGHLT,

Module
PHYMSC

PHYMSC

CHK

PHYMSC

NODE

Node

CID

Connect

UNIT

Unit

PHYMSC

dispatch
perform a

Node

FUNCTION

Command

PHYMSC

BHD

state

PHYMSC
connect

number bad.
invalid.

The

Packet

from

PHYMSC

PHYMSC
cannot

number

Connect

CID

CHK

from PHYSIO.
function that

reference
number is

ENDCODE

end

code

request

error

bit

set.

implies that
Something
is

too

much

data

zero

BHD

was

connect

error

bit

the BSD had the
inconsistent
in

- Bad
connect
ID
response
available

negative

MSCBPK

PHYMSC - Command
command reference

the

HLT

number

was set. This
wrong length.

MSCBID

message
received.
recelved.

performed.

CID

HLT

(Cont)

Explanation

number

PHYMSC
-~ Bad
was called to

NODE

MSCBHE

BUGCHK

and

PHYMSC
Available
Available message was

MSCBCN

BUGINF,

Message

sent.

from SCAMPI.
occurred
and
Id

was

A
a

returned

SCA.
-

Connect

PHYMSC
whose

- QOR bad packet.
command
reference

HSC sent a packet
number
can't
be

found.

NODE
CID

- Node
-

number

Connect

ENDCODE - Packet end code
CRN - Command reference number

MSCCDF

INF

PHYMSC

PHYMSC - Connect to disk failure. A
failure occurred after an indication
HSC

was

NODE

Node

ERRCOD

MSCCRN

INF

PHYMSC

INF

PHYMSC

and
Node

PHYMSC

complete
a

was

connect

- MSCCID

- Node

ERRCOD

PHYMSC

table

index

number

Error

Command

has

Node

CID

Connect

HSC

not

Status

NODE

PHYMSC

code

Request
HSC

timeout.

INF

not

There

number

Connect

did

response.

PHYMSC - Connect to tape failure. There was
a failure to connect to the tape controller.

Get

MSCCWM

code

Connect

timeout.

NODE

MSCCTO

request

INDEX

INF

number

Error

reasonable

CID

MSCCTF

PHYMSC

NODE

connect
that an

present.

command

responded

number
ID

Controller

controller

disconnect

correctly

request.

not

mode.

NODE

Node

CID

Connect

UNIT

Unit

number
ID

number

not
576

576

bytes

MODE.,
per

HSC

sector

STOPCODES
-70-

Table
Name

Type

MSCDIS

INF

BUGHLT,

Module
PHYMSC

BUGINF,

Message

PHYMSC

messages

from

Node

CID

Connect

MSCDSR

INF

PHYMSC

MSCGON

INF

PHYMSC

table

has

Node

number

Connect

Reason

PHYMSC

Disk

576
-

Node

CID

Connect

UNIT

Unit

PHYMSC

for

not

bytes

NODE

request

IORB

per

576

MODE.

sector

disk.

MSCIDG

CHK

PHYMSC

disk

had

number

IORB/QOR

IORB

HSC

number

Connect

remote.

disconnect

gone.

PHYMSC

structure that pointed to
find the IORB on the unit
CID

disconnected.

The

problem.

index

Disconnect

REASON

not

1ID

node

disconnect.

indicate

number

MSCCID

Remote

HSC

CID

INF

the

PHYMSC

NODE

MSCDWM

(Cont)

Explanation

Request

NODE
INDEX

BUGCHK

and

data

an IORB.
transfer

It cannot
queue.

Connect

address

STATUS

Status

PHYMSC

Connect

IORB

gone.

now

gone,

MSCILD

HLT

PHYMSC

NODE

Destination

CID

Source

PHYMSC

dispatch

CODE
MSCILF

CHK

PHYMSC

CHK

PHYMSC

CHK

PHYMSC

Dispatch

Scampi

from
is

SCAMPI.

illegal.

value

Illegal

function

number

dispatch

from

1Illegal

function

call

start

1I0.

MSCRIO.

Function

PHYMSC

Illegal

claimed

illegal

CHAN

Channel

KONT

Controller

UNIT

Unit

STS
MSCMID

Illegal
value

PHYMSC

FCN
MSCIVC

node

connect

IORB

PHYMSC

missing

command.

Remote

node

command.

number
number

number
status

word

Missing
zero

connect

ID.

<connect

There
is
a
call
to

FNDNDX.

MSCN2S

INF

PHYMSC

drives

excess
ignored.
available
exceeds
Only

MSCNIR

HLT

PHYMSC

MTAN

drives

KDB

address

CHN

Channel

PHYMSC

CHK

PHYMSC

IORB

Connect

1ID

requested.

can

ZERO.

Node

CID

Node

PHYMSC

place

found

did

not

the

1IORB

expect.

response

available

when

connect

response

available

number

Connect

space,

configured.

occurred
on
a
node
that
have an available happen.
NODE

table

number

zero

than

Number
of
tape
drives
the
constant value MTAN.

1ID

isn't

expected

not

STOPCODES
-71-

Table

Name

Type
1

'MSCNUF

INF

BUGHLT,

.Module

PHYMSC

BUGINF,

Message

PHYMSC
NODE
CID

INF

PHYMSC

not

NODE

PHYMSC

CID

code

table

index

on-line request
duplicate unit

found.

Unit

Node

status

send

failure.

number

Connect

ERRCOD

PHYMSC

1ID

MSCCID

are

because

INF

number

Error

PHYMSC - Available online failed. An attempt
to put an available
unit on-line
failed

NODE

MSCORO

code

PHYMSC - Online failed. An
failed. This happens when

STATUS

INF

SC.SMG

found.

numbers

MSCOLF

failed.

1ID

Connect

INDEX

PHYMSC

unit

number

Error

Node

ERRCOD

CHK

PHYMSC - Get next unit
failed.
Get a
next
unit failed. All the units on this HSC50 may

CID

MSCOLE

Get

Node
-

(Cont)

Explanation

Connect

ERRCOD

MSCNXF

failed.

BUGCHK

and

Error

code

PHYMSC - Offline
return to online when
were told avail. A node that indicated
on-line is not available when on-line

we
an
i

tried.
NODE
CID

CODE

MSCPEI

CHK

PHYMSC

Node

End

PHYMSC a packet
NODE
CID

MSCPTG

INF

PHYMSC

CID

CHK

PHYMSC

Node

KONT

CRN

PHYMSC

INF

PHYMSC

Node

number

away.

Port

has

dropped

1ID

list
and

clobbered.
has

QOR

1list

has

number

- Controller number
- Command reference number

node

NODE

Node

HSC

not

is
-

HSC

reset

Node

ERRCOD

control

reload

initiated.

The

correctly.

number

Start
or
reset
failed.
PHYMSC
SCAMPI and was unable to start or

the
-

reached.

responding

Connect

PHYMSC
called

number

Connect

NODE

Node
connection
reject.
A
response available was rejected.

cannot

PHYMSC

CID

code

number

QOR

PRYMSC
connection

CID

CHK

end

reference

clobbered

NODE

MSCRLF

Node

The

CID

MSCRLD

Packet

Connect

PHYMSC

NODE

INF

code

code incorrect. HSC sent
bad packet end code.

number

Command

been

MSCREJ

status

Packet end
that had a

PHYMSC -~ Port went
the connection.
NODE

MSCQRC

packet

Connect

ENDCODE

CRN

number

Connect

remote.

Node

number

Connect

Error

code

STOPCODES
-72-

Table
Name

Type

MSCSCF

INF

BUGHLT,

Module
PHYMSC

BUGINF,

Message
PHYMSC

BUGCHK

and

SETCCH

characteristics.
characteristics.
NODE
CID

Node

INDEX

MSCSCW

CHK

PHYMSC

code

MSCCID

table

found

Send

The
the

State of
connect

have

caught

CID

MSCSDF

CHK

PHYMSC

this

MSCSIF

CHK

PHYMSC

wrong

Send

SCAMPI

failed

unless

HLT

PHYMSC

Node

PHYMSC

Start

failed

when

PHYMSC

address

INF

PHYMSC

HLT

PHYMSC

INF

PHYMSC

PHYMVR

many

Too

than

address

KDB

CHN

Channel

UDB

unknown

Unknown
the

Node

server

failed.

were

Set

unit

for

KDB.

for

UDB

entries.

have

just

set

and

now

can't
'

disk

type.

There

Device

are

type

1is

system.

number
ID

MSCP

received

server
a

operation

NODE

number

Node

bad

command

unsupported
-

Interrupts

initalization

Connect

BADCMD

MSCRIO

failed.

units

space

missing.

during
it.

PHYMSC

to.

code

units

PHYMSC

call

number

Status

KDB

CID

INF

Node

PHYMSC

NODE

MSSBCM

code

Connect

unit
find
MSCUKD

Error

density

MSCUDB

failed.

and

command

returned.

number

characteristics

CODE

sent

expected

Set

CID

message
will

failed.
not

SC.S0A

PHYMSC

NODE

MSCTMU

IO
was

Channel

ERRCOD

INF

UDB

PHYMSC

error

code

KDB
-

Error

state
changed
should have been

number

Connect

requested

MSCSUF

failure.
and

UDB

the

send
off.

code

ERRCOD

KDB

state.

PHYMSC

connect

number

Error

CHAN
MSCSOA

Node

Connect
-

CID

set

the connection is incorrect for
state.
Previous
states
should

ERRCOD

NODE

set

index

during the send. The
done with the channel
NODE

failed

Error

—

failed

SETCHH

number

Connect

ERRCOD

(Cont)

Explanation

with

command.
an

MSCP

illegal

specified.

- Connect 1ID
OPCODE - Operation code
ERRBIT - Error bits and

MSSCAC

CHK

PHYMVR

MSCP

server

server
NODE
CID

REASON

can't

cannot
Node

1ID

Reason

for

failure

command

connection.

number

Connect

status

MSCP

CID

STOPCODES
_73_

Table

Name

Type

MSSCFS

HLT

PHYMVR

Message and Explanation

MSSCGL

PHYMVR

the

file

NODE

system.

Node

INF

PHYMVR

- Node

by SC.LIS

MSCP server cannot
ID.

connect

given

number
1D

Connect

Node

number
1D

Connect

DMA done

entry not

queue

occurred

interrupt

complete

DMA

state

- Command

DMADON

interval.

in the timeout

did not complete

STATE

PHYMVR

try to get

PHYMVR - Command timeout. Unknown. A command

CID

HLT

returned

the

for

SCDB

find
NODE

NODE

MSSDNQ

code

- Error

Illegal connect ID index.

CID

MSSCTO

MSCP server
connection

continues

server

The

listener.

ERROR

PHYMVR

MSCP server can't get listener.
for
listener
a
get
cannot
a

HLT

number

Connect

requests.

MSSCID

MSCP

writing.

when

CFS

detected

Server

server was requested to perform a write
or
running
not
was
CFS
when
operation
corrupt
may
This
connections.
negotiating

CID

INF

(Cont)

BUGCHK

BUGINF,

BUGHLT,

Module

a
a

found that had
indicates
This

commands were
name.
buffer

found.
and

matching
software

inconsistency.
CID

MSSERO

CHK

PHYMVR

Connect

32-bit

BUFF

IRBERR

PHYMVR

MSSNWO

HLT

PHYMVR

MSSREJ

INF

PHYMVR

MSCP

The

relevant

HLT

name

IORB done error and error bits 0. An IORB
completed with bit IS.ERR set indicating an
error.

MSSLNM

buffer

server

could

IORB

status

any

match.

The

waiting.

The

MSCP

word

MSCP server

listener does

index

listener.

index

listener
of

find

not

error.

the

OK2SND - OK

send

not

match

when

not

does

known

the

MSCP server received notification of okay to
send from a node. The node in question was
not flagged as waiting for an okay to send.
CID

MSCP

Connect

rejecting

server

connection.

server is rejecting a connection because the

connector cannot be identified due to an SCA
failure or because the connector is not on a
KL10

processor.

NODE - Node number
CID - Connect 1ID
ERROR - SCA error code

MSSSBD

INF

PHYMVR

Send

failed.

unexpected

message

reason.

send

failed

for

Connection is shut down.

NODE -~ Node number
CID - Connect 1ID
ERROR - SCA error code

MSSSCA

HLT

PHYMVR

MSCP
MSCP

SERVER
server

from

SCA.

- Server
detected

detected SCA error.
an illegal response

SCAFNC - SCA function code
ARGl - ARG3 - SCA function

arguments

STOPCODES
-74-

Table
Name

Type

MSSSHT

INF

BUGHLT,

Module

PHYMVR

BUGINF,

Message

MSCP

server

forced
NODE

CID

Node

HLT

PHYMVR

down

node.

MSCP

server

was

node.

number

Connection

ERROR

MSCP

SERVER

Last

detected

(Cont)

Explanation

shutdown

shut

Connect

STATUS

MSSSTA

BUGCHK

and

SCA
-

status

error

Illegal

1illegal

state.

command

MSCP

server

connection

too

many

listeners.

obtain

state.

MSSTML

HLT

PHYMVR

LISTEN

MSCP

server

one

already

CHK

PHYMVR

Unmap

buffer

unmap

have

HLT

NISRV

driver

NIJECL

HLT

NIUSR

NIJPMU

HLT

NIUSR

has

Error

the

D36COM

called

should

back

portal.

tried
UNRES%

one

may

error

occur.

code

Block.

NIUSR

pointer

portal

list

portal

ma2ssed

and

up.

install

PLNUM,

there

the

portal

1list.

address

running
CALADR

list

in
-

section

Address

Code

job's

create

portal

1list.

were
some
free
A
search
of
the

PRLIST

section

find

the

tried

the

Portal

not

address

find

did

NIUSR

list was not able to
is an inconsistency.

Error
which

block

Job's

returned

portal.
error),

Portal

not

portal

List

(Resource

1list.

JOBPPR

Port

code

on.

proper

Portal

that

NISRV

that

Driver.

either

portal

Not

Port

with

called

Returned

Illegal

from

back

not

only
-

spots

CHK

was

when

understood

closing

when
was

According

NISEC6

routine

failed

code

called

code

expected

ERROR
NIUSR

Error

not

error

HLT

and

Callback

code

NIJIPB

when

indicates

software.

failed.

that

the

buffer

Unknown

listener

This

succeeded.

REASON
NIDUNF

existed.

inconsistency
MSSUMP

server

tried

free

slot.

that

should

This

not.

routine

not

section

6.
NMXTBG

CHK

JNTMAN

NMXTIM

is
NOCHKR

CHK

SCHED

CHKR

CHK

SCHED

fork

CHK

MEXEC

blocked.

while.

Monitor

continues

time

the

CHKRNR

DDMP

Count

used

NMXTIM

fork

Monitor

Could

not

find

KLIPA

(IPA20)

exist.

this.

overdue

not

run

nervous.

the

run

BUGHLT
times

not

will
DDMP

However,

for

overdue

dump

program.

dumped.

supposed

the

long

result.
was

microcode

needs

PS:<SYSTEM>IPADMP.EXE

long

getting

CI-20
RAM

for

result.

has

DDMPNR

the

fork

the

Count

DDMP

time

run

was

continues

not

run

not

CHKR

fork

DDPDUE

has

nervous.

times

blocked.

while.

fork

getting

BUGHLT will

DDMP

Table

CHKR

fork

NODMPF

obsolete.

CHKR

CHKDUE

NODDMP

table

obsolete.

file

File

run

does

not

STOPCODES
-75-

Table
Name

rType

NOFSEC

HLT

(Cont)

Explanation

and

Message

Module

BUGCHK

BUGINF,

BUGHLT,

PAGUTL

ASGVAS failure at startup. ASGVAS was called
to get a free section for SCA at startup but

MEXEC

Could not find CI-20 microcode load program.

failed.

NOLODF

KLIPA (IPA20) RAM needs to be reloaded. File
PS:<SYSTEM>IPALOD.EXE is supposed to be run
to do this. However, the file does
exist. TOPS-20 1s ignoring the CIZ20.

PAGUTL

NOOFN

not

ASOF4 - Attempt to create new OFN failed no more OFNs available. As a result of an
an

OPENF,

was

attempt

made

create

new

OFN. It fails because the system has no more
OFNs available for use. The user receives an
OPNX10 error. This BUGINF is issued at most
once every 30 minutes regardless of how many

OPENF attempts are made during the time the
OFN space

NTBSUP

CHK

D36COM

exhausted.

The

supplied.

Buffer

NTPARM

routine

was

management
network
a
handle
to
called
handle
only
can
routine
The
parameter.
of a single value, but NTMAN had
returns,
supplied a multi-word buffer.

D36COM

NTBTSM

Buffer too small. NTMAN requested a show
counter operation, but did not supply a
the
all
store
to
enough
large
buffer
counters.

NTMBCF

CHK

NTMAN

NTMBCL

CHK

NTMAN

Bad coded field on output. Output for a Show
is being formatted, and there was a request
to generate a CODED field of more than one
This can't be done.

byte.

counter

Bad

output

for

While

generating

illegal

number of

While

generating

length.

byte

numeric

request to generate an

field,

there

was

bytes.
NTMBDL

CHK

NTMAN

Bad multiple

byte

length.

output for a numeric field, there was a
request to generate an illegal number of
bytes.

NTMAN

NTMBFP

Bad format type encountered. While reading a
descriptor
string,
user
the
from
value
tables returned an invalid format for this
descriptor
the
item. The AC "NT" points to
for this item, and field NTSEQ tells which
item

NTMCBL

CHK

NTMAN

NTMCNO

HLT

NTMAN

NTMDVI

CHK

NTMAN

is being

referred

to.

Bad Counter Block length. A DECnet Layer
returned an invalid length for a Counter
Block.

Circuit name overrun. More than 16 bytes of
data returned into a 16 byte field. Data
beyond the buffer was trashed.

NMXDSP value illegal. There is a call to a
"layer" to obtain or set a value for an
item. The routine value in the descriptor
block pointed to by NT is illegal.

"layer"TM

any

routine

described

NMXDSP.
NTMEFO

CHK

NTMAN

NTMEOR

CHK

NTMAN

Event function out of range. Event function
supplied by a DECnet layer to NMXEVT was out
of

range.

range.
out of
Entity type
checking the entity ID before
to be
found
was
it, the value
the value the user supplies
GETBLK, this means that field
trashed.

While double
dispatching on
illegal. Since
is checked at
NXENT was been

STOPCODES
~-76-

Table
Name

Type

NTMFOR

CHK

NTMFUR

CHK

BUGHLT,

Module
NTMAN

NTMAN

BUGINF,

Message

Format

out

for

show,

was

found

NTMICF

CHK

NTMILN

NTMAN

While

format
an

code

user

range.

have

dispatching

field

Non-counter

function

illegal

function

NXFNC

wrong.

Illegal
value

number

from

1in

numeric

the

format

descriptor

block

for

this

item

has

number

bytes

read.

illegal

the

routine.

reading

string,

this

There

PRSCOU

When

is
the

GETBLK,

PRSCOU.

user's

code
code

trashed

the

size.

the

was

While

the

item

type.

function

NXFNC

output

this

range.

code,

the

checked

means
that
meantime.

for
format

function
Since

supplies

formatting

block

illegal

out

range.

(Cont)

Explanation

the

Function
out

BUGCHK

and

specified

NTMINT

CHK

NTMAN

Invalid numeric type. When generating output
for
a
numeric
field,
something
other
than
decimal, hexadecimal or octal was requested.

NTMKOR

CHK

NTMAN

Controller

out

controller

field

range.

wvalue

The

controllers

NTMAN.

The

trashed

Note:

range

line-iD

LD.MAX

defines

known

most

likely

CHK

NTMAN

controller

routes

interfaces.

define

the

type

out

return

necessary

NTMNEC

CHK

NTMAN

CHK

NTMAN

error

level

function
field
NTMORE

CHK

NTMAN

CHK

NTMAN

from
not

NTMSQF

CHK

NTMAN

Signal
when

Other

D36COM

This

event

and

the

was

entity

is out of range. Criteria
for
selecting
items
to
dependent

full.

Signal

malfunctioning

the

was

signals

DECnet

from

device

handle
The

the

was

full

the

call

This

NMLT20

the

driver

that

going

bad.

device

from

needs

NTPARM

was

management

NTPARM

said

NTMAN

for the parameters to be
into. None was supplied.

does

queue,

network
of

can

that

signal

Routine
a

caller

queue

logged.

supplied.

expects

zero.

signal

parameter.

buffer
stored

field

(for

(circuit,

criteria.

buffer

called

necessary
remote,

return

layer,

tells NMLT20
attention/reload.
CHK

type.

signal

NTNBFS

It
to

entities

new

zero.

(executor,

read

NXERR

range.

.NTSHO)

queue

caused

not

return

entity

(for

selection

routine

given

criteria
of
range

out

This

legal.

Selection
return

zero.

not

entries

DECnet

type
(Nodes,

has

should have this
is set by ENTCVT.

received

line

NTExxx.

field

determine
.NTSHO),

return.

but

type

.NTSHO).

Unrecognized
type

NTMSOR

out
node

select

field

error

calling

found

the

lines)

with

controls

entities

this

non-skip,

type

loop)

code

know

currently

Circuit/Line,

the

Other
have

Node

driver

1is

function

ENTCVT.

returned

NTMNTR

device

range.

should

top

know

set

the

bug

field

error

this

(for

Modules)

number

thus

Controller

(CI,NIDTE,...).

any

name

that each
line type.

entries

the

and

cause

used

Line

The

out

AC.

assuming

NTMLTR

D36PAR,

which

single

Circuit-id.

that

supply

read

from

it
a

STOPCODES
-77-

Table 5

(Cont)

BUGHLT, BUGINF, BUGCHK

Message and Explanation

Module

Name

Type

NTNBUF

CHK

D36COM

NVTILS
.

CHK

TTPHDV

NRT link in unexpected state. DECnet called
in an
1link
NRT's host service for a

NVTINP

CHK

TTPHDV

NRT Input to DECnet failed. An input call to

show

requested a

NTMAN

supplied.

buffer

supply

counter operation, but did not
buffer to store the counters in.

state.

unexpected

failed

point

entry

SCTNSF

DECnet's

unexpectedly.

NVTNHB

CHK

TTPHDV

be called.

never

NRTHBR should

called NRT's host service

DECnet has

its

"hiber"

address. This should never happen, since NRT
always uses asynchronous calls to DECnet.

NVTOUT

CHK

TTPHDV

NRT output to DECnet failed. An output call
to

failed

point

entry

SCTNSF

DECnet's

unexpectedly.

NVTPCL

CHK

TTPHDV

NVTSAB

HLT

TTPHDV

NRT's host

Partial Configuration Msg Loss.

in a single DECnet message segment.

for

memory

configuration

the

send

service failed

message

code

initialization

NRT's
was

SAB.

unable

build

free space to

resident

NRT's

get

its control

blocks.

for

memory

SJB.

NRT's

NVTSJB

HLT

TTPHDV

initialization
resident free

code
space

NVTWWC

CHK

TTPHDV

Wrong Channel

on Connect Wait Wake.

NRT's

wait

state

unable
was
to build its

get
to
control

blocks.

host service was waked for a circuit that is
logical

the

not

1link

and has no TTY line

connect

number

associated with

it.

NVTWWN

CHK

TTPHDV

OFJFBD

HLT

DISC

OFNBDB

HLT

PAGUTL

No NRTCWN Connect Wait Wake. NRT's host

service has been waked for a circuit that
has no TTY line number associated with it,
yet there is no NRB for a logical link in
wait

connect

state.

OFNJFN - OFNJFN found bad data. An OFN was

found whose bits indicated that it was or
was not a secondary index block. SPTO4 was
to

found

disagree.

OFN bad data base. There are many causes of

this BUGHLT. They all indicate some error in
the monitors internal OFN data. The cause of

the

the BUGHLT can be found by examining
dump.

PCINO

CHK

PAGEM

has

gone

into

section

This

should

not

happen

reference was made

section

code

RSCOD

data

reference

cannot

or NRCOD

because

extended sections. As an expedient, the page

being referenced is mapped to section 1 with

PDBSTA

CHK

PHYSIO

indirect pointer.

PFW - Page

fail word

PHYSIO -

Inconsistent

bits.

UDBST1l

STATUS

- UDB

state of

is inconsistent.

status bits

UDB

status

STOPCODES
~78~

Table
Name

Type

PGRIXM

HLT

BUGHLT,

Module

PAGUTL

BUGINF,

Message

PGRINI

Values

pages

for

the

Boot

overlaps

BUTPHY

indicate

that

are

the

run

resident

that

expected

code

result

attempt

(Cont)

Explanation

resident

BUGCHK

and

storage

bad

was

This

build

with

left

available

areas.

monitor

tables.

BOOT

can

insufficient

memory.

PH2IUA

HLT

PHYH2

Wrong

CHK

PHYH2

inactive

was

and

determined

PH2PIX

and

RH2INT

controller

can't

PHYH2

was

but

RH20

that

not

CONI

PHYCPI

INF

PHYSIO

the

Results

PIA

path

had

PHYDCD

INF

PHYSIO

access

CONI

01ld

channel

New

channel

Don't-care

disk

on
on

PHYDCR

INF

PHYSIO

Channel

Controller

UNIT

Unit
-

PHYDCU

INF

PHYSIO

Disk

over

wvia

disk

was

PHYNOS

CHK

PHYSIO

Channel

Controller

Unit

the

CHAN

PHYSIO

Do-care

disk

Channel

the

Controller

Unit
-

Serial

number

Channel

Unit
no

UDB

DON'T-CARE.

unit

-1

found

PIOERR

HLT

APRSRV

disk

detected

number

don't-care

number

the

drive

drive.

drive

-1

for

disk

drive.

missing.

number

number.

unit

number

was

UDB.

not

This

number
number

address

interrupt

unvectored

channel

This

generated

number

received

happen.

don't-care

-1

was

Unvectored
PI

DON'T-CARE.

Controller

UDB

standard

number

Channel

drive.

for
a
given
CDB,
KDB,
indicates a software problem.

CHAN

The

found

KONT

MASSBUS.

do-care

treated

was

serial

Controller

PHYSIO

already

number

PHYSIO

(through

number

but

found

number

declared

UNIT

see.
TOPS-20

number

CONT

CHAN

HLT

was

number

standard

that

CONT~

PHYNUN

being

UNIT

PHYSIO

path.

number

disk

CONT

number

A don't-care
drive.
CHAN

the

number

CONT

PHYSIO

disk.

drive.
CHAN

a
and

channel

correct

the

server)

disk

the

OCHN

for

the

check

expected

Massbus

MSCP

the

don't-care

for

the

CONI

disk

system's

PHYSIO

twilight

status,

second

final
first

for

the

number
of
of

ignores

found

NCHN

for

controller

called

assignment

ignored

access

from

was

channel

the

assignment

system

Routine

interrupt,

finished

active

RH2CHK
PI

Results

able

had

expected.

OLD

another

I/0

returned

Channel

handle

that

channel
status
assignment.
CHAN

interrupted.

that

found.

zone.
Routine
periodic
check
found

unit

called

This

channel

Monitor

hardware

interrupt

1is

supposed

not

could

faulty

hardware.

incorrect

requests

STOPCODES
~79-

Table 5

Type

PINIC!

HLT

APRSRV

PIRACE

HLT

APRSRV

PLKMOD

HLT

PAGEM

PPGOFN

HLT

PAGEM

CHK

APRSRV

(Cont)

BUGHLT, BUGINF, BUGCHK

Message and Explanation

Module

Name

MAPIPG - Page table not in core. A routine

was called to map a page into a special
address slot. The requested page is not in
memory.

MAPIPG - Called with PI on. This routine

uses a MMAP entry that may be used at PI
level. To avoid races the PI should be off
when it is called. This particular caller
did

SPHYPT

Destination

decremented the lock count of a page past
zero. This indicates a software problem.

LLMOP

SPHYPG

OFN.

argument
destination
a
given
was
SPHYPG
which is an OFN. This type of mapping may
only be done in non-file page tables.
OFN

The

Page table parity error. A page table entry

has bad parity. The monitor clears the entry
and tries again. If it fails repeatedly,
results.

PFW - Page

INF

Monitor

decremented.

overly

PTMPE

RCS3XF

PI.

lock

OFN

PTPTEl1

the

turn off

not

Page

fail word

LLMOP Transmit Failed.

returned from DLL

DLLERC - Error code

CHANNEL

LLMOP was unable to

data message.

forward

send

Channel

the

failure

invalid

function

which

occurred

RCSIFC

CHK

LLMOP

LLMOP RCSCBR called with

the LLMOP
Layer called
Data Link
code.
Remote Console Protocol Server Call Back
Routine with an invalid callback function
code.

This

is a

software bug.

FUNCODE - Function

RCSPIS

INF

LLMOP

RELINC

HLT

FREE

code

LLMOP Ethernet Periodic Identify-Self. This

RELFSP - Bad block being released. This is a

It
BUGINF.
Identify-Self

debugging
temporary
a
is
indicates that the periodic

transmission is being performed.

free space problem. The block being returned
does not fit into the free space. When
blocks are returned to the free space pool,
a consistency check is performed. The block
is merged into existing blocks that follow
it in free space. This block overlaps into
existing free blocks. It cannot be merged.
- Pool

POOLN

number

CALRPC - PC of caller of RELFSP
BLKADR - Address of user block

REVLEV

INF

PHYM78

TM78 Microcode
have

not

monitor

needs.

ACTUAL

LEVELS

the

is outdated.

The TM78

does

microcode

version

that

Actual

revision

levels

TM78

MINIMUM LEVELS - Levels

required

the
in

by this

monitor

ROUATL

CHK

ROUTER

routing

message

contains

start

the

start

greater than we can handle. An adjacent node
sent

routing message with

that causes indexing into the per adjacency

vector past the end of the vector.

STOPCODES
-80~

Table
Name

Type

ROUAWS

CHK

BUGHLT,

Module

ROUTER

BUGINF,

Message

Adjacency
unused.
queue

is
ROUBCD

CHK

ROUTER

BUGCHK

and

block

(Cont)

Explanation

queue

adjacency

block

active

when
was

adjacencies,

unused.

state

left

but

its

the

state

Bad

Checksum detected when building
routing
The
internal
reachability
vector
was
damaged since the last rebuilding.

msg.

ROUBMB

ROUBMT

CHK

ROUTER

Bad

message

block

with

function

block,

and

the

pointer

either

out

Bad

message

received

type
bad

incorrectly
message
ROUBSN

CHK

ROUTER

Bad

CHK

ROUTER

source

local

ROUTER

block

The

ROUCGV

INF

ROUTER

information

from
new

ROUTER

Hello

ROUEHB

CHK

ROUTER

CHK

ROUTER

Message

ROUIFS

CHK

ROUTER

the

that

message.

the

hello

endnode

test

data.

Received

that

bad

test

message.

its

for

event

free

space.

for

data

the

Event

from

caller

arg

block.

data.

failed

for

zero.

Received

are

report

supply

address.

Block

read

event

but

for

data

the

message

address.

Router

got

Event

from

caller

through

data.

failed

the

with

circuit

bytes

circuit

blocksize

format.

Block

read

send.

zero

node

memory

but

Message

trying
an

Test

get

event

message

ROUEHM

exhausted

trying
an

NSP.
not

for

ended

the

to
is

was

nodes

many

hello

Couldn't
DECnet

too

from

updated

this

message

from

data

DLL

node

and

minimum

Somehow

Bad

DLL.

NSP

address

size

into

blocksize

RTRBSZ

determine

Test

the

T3)

Router.

contained
ROUBTM

from

circuit.

Bad

message

another

message

running

message

called

(in

message

node

circuit

circuit.
INF

message
source

from

Router
default

ROUBTF

node

a
the

the

received

message

block.

received

DNADLL

requiring

supplied
range.

copied

However,

of
ROUBSZ

pointer.

RTRDLE

are

report

supply

forward

routine

without picking a route. RTRFWD got through
its Forward process and either did not pick
up

the

route

local

failed

node

flag

message

unreachable

for

message.

ROUILS

CHK

ROUTER

Illegal Circuit Specified in NSP msg. There
is
a
request
to
send
a
message
on
a
particular
circuit,
however
the
routing
layer never initialized the circuit.

ROUNAV

CHK

ROUTER

ROUNLN

CHK

ROUTER

adjacency

created.

Either

cleared

the

Trying

returned

CHK

ROUTER

no
routing
vector.
A
built
for
each
routing
the
adjacency
block
is

local
ROUNSO

has

routing vector
adjacency
when

NSP

didn't

pointer

return

msg

message

build

non-local

NSP.

local

but

the

was

not

the

sent

out

range

NSP

originator.
packet.

request

forward

outside

the

range
has

packet

vector.

Either

our

NSP

cannot

forward

wire,

the

NSP

address

the

one

it.

have

There
a

given

node

our
a

received

whose

routing

packet
one

from

STOPCODES
-81-

Table
Name

Type

ROURCE

INF

BUGHLT,

ROUTER

BUGINF,

Message

Module

Bad

Router

received
than 256
ROUTER

ROURFN

node

ROUTER

message

format.

have
more

believe

endnode

store

count.

have

Stored
RTRBAV.

routing
message
format
error
in
We
have
received
a
P3
routing
with

checksum

negative

Count
ROUTER

list

message
a

CHK

a
router
hello
message
with
known two-way adjacencies.

vector

ROUUER

(Cont)

Explanation

Routing
message
received
from
non-routing
node. We received a routing message
from a
no

ROURML

BUGCHK

and

negative

count

routing

segment

Count

Unexpected

end

nodes

message

with

count,

checksum

routing

message.

Number

bytes
in
the
routing
message
did
not
correspond to the length expected. This may
be caused by reading too many bytes out of
the
message
without
decrementing
the
byte
count read or caused by an improper routing
message.

ROUUET

CHK

ROUTER

Unknown
a

ROUUOC

CHK

ROUTER

bad

event

type

RTNEVT.

supplied

code.

Unable to obtain count of nodes in Phase IV
message.
We
received what we
think
is
a
routing
message
that
DNLENG
said
has
more
bytes

than we have read.
another
two DNG2BY
it

When we try to read
says
the count
is

exhausted.
ROUXNZ

CHK

ROUTER

R2NCAL

called

trashed

ROUZXT

SBXSEO

CHK

HLT

ROUTER

SYSERR

with

the

unlikely to
a bad MB.

this

SYSERR

called

function

SYSERR

PC
CHK

SCAMPI

far

Somehow

process.
if

RTRFWD

Tried to free msg with MB=0.
to free an MB but was given a
from

SEBCPY/QUESEB/OR

SCABAL

MB=0.

forward

get

SCA
is

call

block

linking

other
Node

FREMSG called
pointer.

with

that

free

block
is

the

space.

linked.

onto

connection
it

blk.

when

routine

already

SCA

system
block's

already

1linked

number
ID

connection

Address

©previous

Bad

message

type

from

BLINK

ext

unextended

performed

SYSERR

the

block.

Connect

FLINK

the
block

connection

indicate

some

CID

was

zero

with

was

extended

However,

pointers

NODE

Connection

block.
to

was

Callers
-

SEC

SEBCPY

address

received

Address

block

connection

block
SCABMT

CHK

SCAMPI

SCA

bad

message
checking. This

type

was
shouldn't

and port driver are working
message is thrown away.
NODE
CID

SCABSF

CHK

SCAMPI

Node

SCA

Buffer

create

section
are not

correctly.

The

OPCODE
-

node.

number

Connect

SCS

remote

found
on
range
happen if the port

code

received

section

buffers

and

full.

SCA

went

discovered

that

the

is full. This indicates
being returned.

that

buffers

STOPCODES
-82~

Table
Name

Type

SCACCD

CHK

BUGHLT,

Module
SCAMPI

SCA

BUGINF,

BUGCHK

Message

and

cancel

Can't

(Cont)

Explanation
datagram

buffer.

performed
the
"cancel
receive
function
of
SCA,
and
the
port's
not

contain

believes
NODE
CID

SCACCI

HLT

SCAMPI

should

Node

number

Connect

COUNT

SCA

many

the

system

contain.

buffers

Cannot
the

sysap

Number

During

buffers

datagram”
queue
did

couldn't

complete

init

SCA

get

initialization.

detected

error

could not recover from. SCADIE is called by
the
location and
the
stack
points out
the
faulty phase of init.
SCACFO

HLT

SCAMPI

SCA

SC.CON

SCACGD

CHK

SCAMPI

received

created

called

SC.0OUT

call

should

never

SCA

Can't

failure

new

then

from

connection

check

its

SC.OUT.

block

and

state.

The

fail.

get

datagram

buffer

when

reaping. When reaping a connection block, a
buffer count indicates that datagram buffers
are queued to the port. However, the port's
queue
emptied
removed.
NODE
CID

Node

while

CHK

SCAMPI

buffers

were

number

Connect

COUNT - Number
dequeued.
SCACGM

these

buffers

remaining

SCA - Can't get message buffer when reaping.
While reaping a connection block, a receive
credit

indicates

queued
to
the
queue
emptied

that

message

port.
while

buffers

are

However,
the
port's
these
Dbuffers
were

removed.
NODE
CID

Node

number

Connect

COUNT

1ID

Number

buffers

remaining

dequeued
SCACLB

SCACRB

HLT

CHK

SCAMPI

SCA - Incoming connect_request on closed
v.c.
SCAMPI
received
a
connect request and
matched
it
to
a
listener.
But when
SCAMPI
tried to queue the connection block to the
system block,
it found that the vc closed.
Since SCAMPI
had
checked
for
that
state
earlier, and this is happening at interrupt
level,

something

NODE

Node

SCA

- Can't
reclaim
return credit
field

SCAMPI

port's
buffers
in

CID

CHK

SCAMPI

Node

SCA

Can't

send

Based

on
the
connection,

this

queue

buffers

from

the

1is

empty.

This

credit,

since

these

been

queued

this

node

the

was

send

credit

some

time

buffers

credit

request.

SCA

but

connection

request,
has

This

inconsistency,

and

for

about

have

already

pending.

STATE

buffers.
reclaim

The

Number

block

CID

happened.

number

Connect

COUNT

NODE

has

past.

confusion

should

the

NODE

trying

queue.

reflects

SCACSC

unexpected

number

reflects
since

interlock

Node

number

Connect

1ID

state

BLock

some
the

word

couldn't

the
other

some
state

for

get
wants

message

sort
was

credit

"open",

requests

STOPCODES
-83-

Table
Name

Type

SCADCF

CHK

BUGHLT,

SCAMPI

BUGINF,

Message

Module

BUGCHK

and

(Cont)

Explanation

SCA - Datagram buffer
the
that
detected

creation
level

datagram

buffers

below minimum.

maintained was

create

ERROR

The
as

given

data.

additional

Error

- Number

COUNT

attempt

failed.

Output

T1.

code

error

failure. SCA
buffers
of

The

code

SCA's

datagram buffers

pool
SCAEBD

HLT

SCAMPI

deferral
buffer
handling
Error
SCA
request. SCA was unable to create buffers
when running in job 0. This should never
can

Jjob

since

happen

pages

create

needed.

NODE

CID

ERROR
SCAFN2

HLT

SCAMPI

Node

number

Connect

code

Error

to
call
deferred
complete
Can't
SCA
SC.DIS. A sysap called SCAMPI at SC.DIS when
The
locked.
was
block
connection
the
connection block is being unlocked, and the
is

function

can't

has

current

the

for

performed

this

that

indicating

failure,

returned

SC.OUT

processed.

being

request

that
return
to
way
no
is
There
state.
failure to the sysap, which believes that
the disconnect has proceeded normally. The

HLT

SCAMPI

cause.

the

determine

crash

will

system
SCAFN3

to
call
deferred
complete
Can't
SCA
SC.DRQ. PHYKLP called SCAMPI at SC.DRQ when
the connection block was locked. At the
time, the incoming packet was legal for the
current state of the connection. Now it is

not legal. This shouldn't happen, and it is
uncertain how to proceed. It is possible to
close the vc and continue, but there is a
halt to analyze the protocol confusion and

SCALFO

SCAMCF

HLT

CHK

SCAMPI

bug.

fix

the

SCA

call

should

failure

received

SC.LIS

SC.OUT.

from

SC.LIS created a new
then called SC.OUT to

connection block
check its state.

- Message buffer
the
that
detected

creation

fail.

never

SCA

level

and
The

SCA
buffers

failure.

maintained was below minimum. The attempt
create more message buffers failed.
ERROR

Error

code

message

Number

COUNT

SCA's

buffers

pool
SCAMCR

CHK

SCAMPI

SCA - Message buffer count was incorrect.
There are no message buffers when the count
there

indicated

enough.

are

COUNT - Count of buffers we believed we had
TOPQ - Pointer to top of message free queue
BOTQ - Pointer to bottom of message free
queue

BUFNUM
SCANBL

HLT

SCAMPI

called
to

- Number

- No

SCA

told

SCANLF

CHK

SCAMPI

buffers

for

online

to get a buffer
to

used

on-line.

when

cannot

buffer

call

Without
a

node

for

requested

this

comes

SC.ABF

list.

the address

SYSAPs when

list

on-line

node

one

and

was

list

comes

can

hence

run.

SCA - Notice table full. So many SYSAPs
requested notification of nodes that come on

and

off-line

that

notification addresses

the

overflowed.

table

STOPCODES
-84-

Table

Name

Type

SCANMB

CHK

BUGHLT,

Module
SCAMPI

the

CHK

SCAMPI

BUGCHK

and

(Cont)

Explanation

SCA
Can't
return
SCS
control
message
buffer. A node went off-line, the local node
tried to
retrieve two message buffers from
port's

NODE
SCANOC

BUGINF,

Message

SCA

queue

Node

but

found

Received

packet

and

doesn't
exist,
An
destination CID doesn't

block.

This

another

may

CID

SCANPT

HLT

SCAMPI

Node

about

SCA

HLT

SCAMPI

disagreement
the

these

tables.
System

found

SCANSC

CHK

SCAMPI

NODE

SCA

for

CID

block

table.

block

but

address

Node

the

with

SCA

called

data tables in.
be done without

gone

away.

marked
of

the

SC.DEF

stuck

system

for

block

number

Negative

decremented
on-line.

its
can

has

system

notified

state

page

buffers,
is 0.

block

packet's
connection

code

SCA

connection

connection.

PGRSKD for a page to put
The call failed. Nothing

SCANSB

empty.

number

Connect

OPCODE

queue

incoming
match any

reflect

node

previously-existing
NODE

the

number

system

count.

SCA

was

system going
off-line
and
count of
systems
currently
doing
so,
the
count
went

the

negative.
SCAOBI

CHK

SCAMPI

SCA

node

SCAODI

HLT

SCAMPI

Online

came

SCA

before

on-line

was

decremented

done

when
This

overly—-decremented
SCAOF2

CHK

SCAMPI

SCA

Offline

called
flagged
an

CHK

SCAMPI

done.

initialization

interlock.

previous
leads

CIOFF
to

had
an

SC.ERR

was

lock.

twice

for

node.

when
a
system
block
was
already
as off-line. While this won't cause

immediate

confusion

SCAPER

the

completed.

Overly

CION was
occurred.

initialization

before

problem,

and

should

NODE

Node

SCA

Protocol

violated

indicates

internal

checked.

number

the

illegal,.

it
be

error.

SCS

incoming

protocol.

Closing

the

message

This

message

eliminates

confusion.
NODE

CID

Node

OPCODE

STATE
SCARTO

CHK

SCAMPI

SCA

number

Connect
-

code

State
Reap

cannot

count

debugging

CID

now

Node

reaped

check
these

block

failed.
were

not

that

because

packets

either

non-zero

After

several

corrected.

The

number

Connect

Block

state

COUNT

Contents
or

packet

deleted.

STATE

messages

node

out.

outstanding

postponements,

NODE

incoming

timed

reputable

this

connection.

the

block

at
of

this

node

CBNPO

datagrams)

(number

queued

STOPCODES
_g5-

Table
Name

Type

SCASBN

INF

BUGHLT,

SCAMPI

BUGINF,

Message

Module

BUGCHK

and

(Cont)

Explanation

- Block state already non-zero. While
trying to set a connection's block state, it

SCA

is found to be already non-zero. This can
happen legitimately under some conditions.
NODE

CID

SCASCQ

HLT

SCAMPI

Node

number

1ID

Connect

OLDSTA

Existing

NEWSTA

State we're

SCAMPI

and

run

SCA

CHK

SCA

SCAMPI

interrupt

creates

that

process

the

recently.

code

from allocation
remote

out

timed

NODE

TIME

- Time

Node

number

sent

since we

sent

receive

period.

timeout

response within

routine

SCA

node,

and did not

message to another node,
a

SCAUXR

set

allocated

were

buffers

level,

hasn't

ERROR -~ Error
INF

state

trying

SCA
Can't
get
connection
management
buffers. SCA was notified of a new system
coming on-line. It tried to allocate two
and
management,
connection
for
buffers
failed. This indicates that a large number

SCATMO

block

timed message

connection
A
response.,
Unexpected
SCA
management response arrived for a particular
is not the
but the op code
connection,
expected

NODE
CID

one.

- Node

number
ID

Connect

code

- Op

OPCODE

Expected

EXPECT

packet

incoming

this

for

code

connection
SCLCBN

INF

SCLINK

not
buffering
Phase-1II
is
buffering
Conservative

implemented.
link

SCLNZE

CHK

SCLINK

SCLRIB

CHK

SCLINK

open

never

should

phase

implemented.
yet
not

have

logical

node.

Passing zero error code to SCMUUO. Routine
that is supposed to store an error code for
the user is zero. This is an illegal value.
Bad SCTRIB call from LLINKS. LLINKS has
a
send
to
permission
for
SCTRIB
called
to SCLINK and has passed an invalid
SLB address in Tl. The data structures for
this logical link are inconsistent.

message

ADDR
SCLSLB

CHK

SCLINK

- Bad

SLB

SLB bad at
Control Job
Control

Link

pointer

is no
FRESLB. There
Block (SJB) for this
(SLB).

Block

This

happen any time during

the

life

the

SLB

that

it was

after

pointer

SLBPTR/

actively transferring
to

Session
Session

error

the

can

link

data.

lacked

SJB

pointer.
SCLSPF

CHK

SCLINK

FNDSLB.
in
up
messed
pointers
self
SLB
DECnet data structures for this link are
than
more
happens
this
If
inconsistent.
once,

submit

CHAN

-~ DECnet

SJBPTR

SPR.

channel

- Pointer

number

the

SJB

STOPCODES
-86-~

Table
Name

Type

SCLTFJ

CHK

BUGHLT,

Module

SCLINK

BUGINF,

Message

Freeing

©SJB

FRESJB

still

for

SJB.

This

should

this
is

Pointer

SLBPTR

for

HLT

SCSJSY

the

SCS5JSY

the

bad

result

while

entry
is an
data

should

map

correct

did

not

return.

PSB.

Some

release

it,

interlock.

trying

have

the

still

always

fail

second

but

the
node
requested

PSB

are

ASGVAS

for
the

this

the

table
There

gave

DECnet

called

use

that

the

SPR

SLB

space
Since

ASGVAS

Attempt

mapped
not

did

the

SCLINK

non-resident,

routine

PSB

address
database.

and

1link.

memory.

However,

use

SJB

virtual

succeed.

SJB.

happen,

Submit

SLB. Channel
correct SLB.

this

Pointer

get

name/address
memory

never

once.

inconsistency

Couldn't
assign

SCSA2M

links

inconsistency

than

Tried to free wrong
didn't point to the

existing.

active

structures.

happens

structures

SCLINK

internal

data

internal

CHK

free

are

SIBPTR

SCLVAS

entries

there

this

SCLINK

SLB

called

However,

DECnet

CHK

(Cont)

Explanation

with

was

there

SCLTFS

BUGCHK

and

map

The

another

first

one

mapped.
OWNFRK

SCSABF

SCSACF

CHK

INF

SCSJSyY

SCsSJsy

map
-

SCSJSY

CHK

SCSJSY

Connection
the

tried

had

open.

The

attempt

Error

code

ERRCOD

SCSJSY

call

the

error

Error

CALLPC

SCSJSY

now

and

the

fork

failure

process

the

for

connections

returned

the

SC.DIS

JSYS)

caller's

out

ASGRES

why

failed.

given

failed

the

easy.

caller

entry

message

Message
-

SCSJSY

Free

type

buffer

buffer
space

Cannot

fork

queue.

block

from

found.

tried

1illegal

return.

SCSFR1

CHK

SCSJSY

the

delete

tried
owning

address

connect

block

remove

fork's

PSB

but

ERRCOD

Error

code

SCS5JSY

SCS%

fork

removing

it.

not

belong

the

owning

fork

type

block

list

from

conhect

connect

blocks.
The
most
likely
failure
is a
return from SCSMPS.
This fails only when
a

With

lost.

BLKADR

map

code

Bad

did

failed.

call

figuring

ERRCOD

lock

deletion

(by

code

that

abort

JSYS

ASGRES

fork

second

abort

During

TYPE

SCSJsyY

the

CHK

doing

fork

type

SCSCDC

Fork

delete.

BUGINF,

SCSBDE

Number

first
CURFRK

its

own

FRKNUM

Fork

CURFRK

ADDRESS

not

can

entries

assumed

manipulate

number

Address

checked

calling

that

SCS%

fork
of

+1
we

it.

PSB.

Current
-

unmap

routine

only

STOPCODES
-87-

Table

Name

Type

SCSNOI

CHK

SCSJSY

(Cont)

BUGCHK

BUGINF,

BUGHLT,

Message and Explanation

Module

receive

cannot

SCS%

SCSJsY

told

SCA has

interrupts.

online/offline

node

the

JSYS SYSAP that there are too many SYSAPs
see
to
allowed
not
is
JSYS
the
and
on-line/off-line interrupts. The system can
run but many diagnostics will get upset as
will

SCSPBF

CHK

SCSJSY

the JSYS.

uses

that

anything

SCSJSY - PSI block build failure. Routine to

build

likely

block

event

that

did

ASGRES

the

have

not

failed.

very

space

available.

code

ERRCOD - Error

SCSUBL

INF

SCSJSY

failing

routine

Bad

recovery.

by ONTBLD

returned

buffer

User

SCSJSY

access

caused

1lost

user

SCS

during

error

place

memory

try

the currently owned user buffer back on the
buffer list. The attempt failed and the
buffer address was lost. Note that there is
Just
has
monitor
the
loss,
memory
no
forgotten one

SCTBWK

CHK

SCLINK

user buffer

address.

code
Current fork
Error

ERRCOD

CURFRK
BUFADR

- Buffer

address

SCTNSF call from sched without lock. DECnet
entry point SCTNSF was called from scheduler
interlock was

the Session Control

level when
locked.

SEBINT

CHK

MEXEC

interrupt

Unexpected

SYSERR

process.

where

the

unexpected error occurred in the process
error
The
logging.
error
handles
that
context
reinitialize the
handler tries to
and resume processing. The stack may be

for

examined
error

indication

occurred.

ITFPC - PC when error occurred
LSTERR - Last error code in fork

SKDFKS

HLT

‘

SCHED

Illegal

action

scheduler

while

fork

context

setup. Scheduler was about to perform an
action that requires that no fork context is
setup. The monitor found that a fork was
fork
that
indicates
which
negative,
not
context

was

swap

setup.

multiple

pages

(drum

full).

SMGFUL

CHK

PAGEM

Can't

SPGNLK

HLT

PAGEM

SPHYPG - Page not locked. SPHYPG or SPHYPT
requires a locked physical page to map. The
argument given is either not a physical core

The monitor is trying to swap a group of
core pages to the drum. There is no space
drum
of
handling
general
The
available.
assignments should insure that there are
"critical"
for
available
pages
few
a
always
1is
It
case.
this
as
such
assignments
could
program
user
some
that
possible
overtax the normal reserves and cause this
failure.

SPRZR1

INF

SYSERR

not

locked.

page

PAGE

- Offending

argument

SEBCHK - SPRCNT went to 2zero. SYSERR fork
keeps a running count of the number of
entries made on the error file in SPRCNT.
This count is continuous over system reloads
and crashes. This BUG indicates that the
count has overflowed its one word value.

STOPCODES
-88-

Table
Name

Type

SPRZROC

INF

BUGHLT,

Module
JSYSA

BUGINF,

Message
SETSPR

BUGCHK

and

SPRCNT

function

.SFSPR

output)

was

indicates
running
output

was

(set

called

that

SPSCHF

HLT

PAGEM

CHK

MSTR

PAGEM

get

1is

This

the

of SPEAR entries
dump
file
or

<cell

number

which

file

should

SPEAR

over

entries

the

life

system.

SPSCH

Destination

has

been

file.

passed

file

SPSCH

destination

page.

offending

identifier

mounted

structure

but

OFN

OFN.PN
on

SPTH

table

has

number

marked

being

STRTAB

entry

for

Swap

STRX
SYSERR

not

running

files

error

the

a
a

page

the

entry

through

particular

mounted

this

page.

NOFN

structure

structure,

structure

while

OFN

STRTAB

N+1

directory

error

with
the
same
directory. The

INF

could

ERROR.SYS

detected

SYENCD

monitor

the

the
CHK

the

zero.,

SWPDIR

SMON%

entries

contain

identifier

STROFF

zero.

SPEAR

value

of the number
either
the

ERROR.SYS.SPRCNT

the

made

set

count

with

the

count
from

(Cont)

Explanation

The

swapping

but

zero.
monitor

the
currently
is marked.

page

mapped

directory

Structure

number

SYSERR

Missing

forgot

supply

Job

code

for

code

error

type

type.

User

the

error

for

entry.

JAWBONE
JOBPNM
TM8REW

INF

PHYM78

Job

PHYM78

gave

spurious

CHANNEL

Spurious

HLT

APRSRV

XBLTA

asked

called

with

one

internal

rewind

section.

interrupt.

TM78

interrupt.

number

Controller
to

index

name

rewind

Channel

CONTROLLER
XBLTAL

number,
program

copy

number

too

'length

much.

BLT'

unlikely

that

really

intended

copy

much.

LENGTH

Number

words

EXTRA

PAGE

this

XBLTA

was

than

XBLTA

the

was

caller

asked

copy
XTRAPT

HLT

DIsC

NEWLFT

monitor

section

trying

indicates

that

super

already

second

some

level

kind

created.

the

PT.

when

TABLE

LONG

create

long

file.

page

table

contains

The

new

file

slot

bughlt
in

pointer

This

indicates

new

FILE.

This

page

the
to

race

table

1is

COMPUTER

INTERCONNECT

-1-

Table

Contents

DOCUMENTATION...o..'.oo.ooot...oooo...........'.00-0-0000000000002
CI2O

CARD

CAGE..................................'.I.....Q....'...2

Rear Panel CoONNECtEOrS..eeecessesscessscsssnscsscsnscscssssssssl
Internal Slot AsSignNmMeNntS..ceeeecsessssssscsssacassssssssssssl
MODULE

LOCATIONS
(Refer to Volume I DIAGRAMS MULS) ceveeecocscsesod
RH/DTE/CI/NI...oocoooo.c..oo.oooooooooooonooo.o..ooooooo--..4

MBOX/EBOX.........'........'.......-...l....0....0..0.......4
GENERAL
SWITCH

POWER

SUPPLY

SPECIFICATIONS...ceeeccsccccscccccosscnccsssd

SETTINGSO....O..'............Q....Q'.................'....4

L0100
DC

Link/Front

Voltage

CONTROL

AND

Bit

End

Monitor

STATUS

ModuUule.e.ceeeeevososcscsscoscsssssosssnadsd

BoaArd..cceeeeesscesssossssscsascscanssssccssh

Map/DefinitionNS.ieeeeeeeeeesssaascscccssssssssssossaansossl

PORT CONTROL BLOCK...:.....O......Q..I.........‘.'.....Q.......‘.g
Error Word
STATUS

Formats/DefinitionS..ceceeeeesecscsscccssccscnsacssed

FIELD:eeeeoeocooosseosoosscssseasncoosocscosssooascssoscscseceell

PORT PERFORMANCE MONITORING..ecsesocoescoccscsoscscsoscsascscssld
SET COUNTERS COMMAND FORMAT...:.cccececcsoosscssssssccscnssssld
READ COUNTERS COMMAND FORMAT....cceeeececccceoccocccsccsocs 16
CONTROL

AND

Bit
PORT

STATUS

CONTROL

Error
STATUS

REGIS‘TER.Q......'......'.........'............6

Map/DefinitionNS.e.ieeeceecessssccasssessssacasossssssssesad
BLOCK. e e oceoceocosccscsosacsccssssososcsssosssscsncssssssaeesd

Word

Formats/DefinitionS.ceeeececececccscscssasesoccaseoeasd

FIELD.O.........Q....l..IQ....O......I....'......l.'.'..llB

PORT
SET

READ

PERFORMANCE
COUNTERS

MONITORING ... ccosoesccccoocsscssocssssonsssld

COMMAND

COUNTERS

COMMAND

FORMAT....cceveccccccosovecsooscsasccasceeld

FORMAT..:eeeo0ccsssocssssesssssancseaslhd

DIAGNOSTICS
.. ceeevecocosacsccccesen P
¥
DESKEWING/ADJUSTMENT
CI20

CRAM

PARITY

Hardware
EXCLUDING
CI20

CI20

Error
AT

PROCEDURE.

ERROR

¢ ceeceeeeccecsceccscsnsccnansssesl?d

SPECIFICATION..... R¥

Chart....... ..... ..‘.......O................zl

START-UP...cseese N
)

LABELS.. ooooooooo ® o s 0000 00 .-ooooooooooooo.o00000-000000000023

COMPUTER

INTERCONNECT
-

CI20

Reference

Manual

The

Order

Set

can

Number

ordered
Print

MP01903

follows.

Set

CI20-A

CI20-B
CI20-C

MP01906-01
MP01909-01

(KL1O-E)

(KL10-D)
(KL10-R)

REAR VIEW

Cl CARD CAGE

TOP

REAR PANEL CONNECTORS

CARD CAGE'

DC POWER +5 0 VOLTS, GND

J3
Ja

PLI
FOR NIA USE ONLY

VOLTAGE MONITOR FOR +5.0 VOLTS

VANE SWITCH

TRANSMIT PATH B

TRANSMIT PATH A

RECEIVE PATH B

for

(EK-0CT20-TM)

DC POWER —5.2 VOLTS, GND

8“'

P2DJ2O O I[

FAN AC

VANE SWITCH

RA RB[___JTA

FAN SUBASSEMBLY.

the

functional/logic/installation descriptions.

I 000 I

Refer

DOCUMENTATION

BOTTOM
MR-14240

COMPUTER

INTERCONNECT

-3-

INTERNAL SLOT ASSIGNMENTS

TOP
MUL DECAL

(LOCATED ON SIDE DOOR)
MODULE
L0109
LLO1OO

(T
2

LOCATION
LEFT
RIGHT

()]

o | £
v
O

I | £

o))

o | o
|

Cl CARD CAGE

(OPENED FRONT DOOR VIEW)
MR-14264

COMPUTER

INTERCONNECT
Y-

MODULE

LOCATIONS

RH/DTE/CI/NIA
The

following

Slot

modules

are

located

follows.

Module

M3001

M3002

Port

M3003

CBus/PLI

16}

17}
18}

EBus

Interface/Port
Microprocessor

Blank Module

Refer

Volume

ALU

Control

Interface

Assembly

Diagrams

MULs

for

all

other

slot

assignments.

CPU

Slot

Module

M8532-YA

POWER

The

SUPPLY

POWER

voltage

the

measurements

are

TOLERANCE
OUTPUT

744/7440

MAXIMUM

SWITCH

SETTINGS

L0100

LINK/FRONT

0=0FF

(CLOSED)

+5.05

END

Switch

MAXIMUM
IN

+4.95

150

MODULE

Setting

1
1
1

0
0
0

5
6

1
0

0
1

VOLTAGE

Switch
All

other

MONITOR

should

switches

BOARD

5414506-01

on.
should

off.

made

MINIMUM

(OPEN)

Node

PIC

option.

SUPPLY

TYPE

1=0N

BOARD

SPECIFICATIONS

following

backplane

from

RIPPLE

MILLIVOLTS

the

OPTIONAL

H7420 NO. 1

+5 F

J1.

+5 H

4 (3 PT

2Q3emi7u

PT20-U

GND 41 aPera0t
5

H744

J1 23 pPT21-U
J1 s [ PT21-L
J1 31 pPr22.u

GND 3 4 [ pr22-L
EK

PT24-U

J1 4 [ PT24-L

Ja-2

H744

+5D

+6E

ZPPTNU

3pemz2u

2Z[PT6U

3[pr5.U

23 PTI3V

J1 s D PT6-L

CT2

3
H7420 NO.

J12GND

H770

GND . s

+15 e

{415

J13GND

PTi6L

TO POWER
TABS OF

CPU BACKPLANE

H744

nsphh—o

+5B

N 6 —

H744

2[PT4U

n 3

UL I

er2u

— gy

41 2DPT7U

VO HARNESS

(7010873)

r ______ ':
|

|
i
|I J

¥alZla

dalole

ey ki gk

woliol 010

0 spert
enp U1 3 ) PT8-U
aJPT8L

i F] = LalaY

) PT1-U
w5 12
N speTiL

H744

4P/

GND J1

+5 A

kw2o | b =m————~-

-15

PTI5U

1 sBerisa
n 3beTieu

CARD CAGE

a4 45y -15 01 1[gpT3u
e

41 spPTIEL
71 2

JT1CROBAR __J1 3

31 seTiL

ermiauv
n 3
GND ;, 4PPT4L
%

cT1

SUPPLIES +15 V

TO NIAZ0

GND \, 4P rr5L

H744
H744

TO CPU

s 2P3eT

GND 1 apPeTi20L

H744

U 2 [ ] PT23U
J1 5 3 PT23-L

anp 1 3

CPU CABINET

MONITORS

CONTROL TABS

GND 1 3 3 ';I_

pPT19-U
J1 2
J1 85 g PT19-L
J1

H744

H7440 H7441

J1 5 3 PT17L

anp J1 3 1 PT18-U
8

3Pt

J1 4{]PT18-L

H744

W7a4

an 28 °PT
J1 s |11 PT

TO H761 IN

J6-3

BACK DOOR

VOLTAGE

H7420 NO. 2

HINGE

SENSORS AND

TO CI20 CARD CAGE

+5
H7440 H7441

TO AIR FLOW

H7441

TO NIA20 CARD CAGE

GND ;1 5[ PT6L
5

J1 3P

PT5-U

ol | wof10 g

DLlLiF|

41 4OPTSL

VIEWED FROM BACK OF
CABINET DOOR OPEN
MR-2239

LOINNODYHILNI ddLNdWOO

H7440 OR

H7441

-G
-

OPTIONAL
H7440 OR

02 03 04 05 06 07 08

PORT

RQST

PRESENT

MBUS

EXAM

ERROR

10
T

{

12 13

IDLE

14 15

PORT

LOOP

19 20 21

CLEAR

ID CODE

OR DEP

DIAG

PORT

DMS

RQST

INTER

CSR

DISABLE

COMPLETE

22 23 24 25 26 27 28 29

PORT

DIAG

TEST

CODE

EBUF

EBUS

SEL

PARITY

LAR

ERR

CMD

QUEUE

FREE

SINGLE

QUEUE
ERR

CRAM

ENABLE

PARITY

CHNG

ERROR

COMPLETE

PORT

DIAG

GEN

CODE

EBUS

SPARE

DISABLE

PIA

RSP

ENABLE

QUEUE

PIA

AVAIL

01
DIAG

CSR

32 33 34 35

AVAIL

DIAG
cYcC

30 31

_9.-

00 01

Bit Map

DATA

MPROC

PIA

PATH

RUN

ERR

MR-14237

LOINNODHALNI ¥ILNAWOD

Control and Status Register (CSR)

COMPUTER INTERCONNECT
-7

BIT DEFINITIONS
DEFINITION

NAME

[

CSR

PORT

PRESENT

DIAG

RQST

DIAG

CSR CHNG

Indicates to the KL10 that the port is
(installed and powered-up) .

present

bit
diagnostic
this
set,
When
indicates that the port has requested

CSR

CSR.

the

access

This diagnostic bit indicates that the
contents of the CSR have changed since
port
the
by
read
last
was
it

microprocessor.

port

the
either
by
used
Not
microprocessor or the KLI1O0.

UNUSED

DEP

RQST

EXAM

RQST

INTERRUPT

by the port microprocessor to
request an EBus interrupt on PI level
00 (Examine or Deposit function). The
immediately
bit
this
of
setting

Used

generates the interrupt request.

microprocessor

port

the

Used

request an EBus interrupt on PI levels
01 through 07. The setting of this bit
interrupt

the

generates

immediately
request.

CRAM

ERR

PAR

Indicates that a control RAM (CRAM)
parity error is detected. If this bit
is set, the port microprocessor 1is

immediately halted and RQST INTERRUPT
hardware
A
set.
is
05)
bit
(CSR

(40

nonvectored

interrupt

2n)

1is

forced.

A CRAM PAR ERR may be forced to halt
the port microprocessor at a specific
(break point).

location

port

The

restarted

bit
07

MBUS

ERR

cannot

microprocessor

until this

(CSR bit 32 set)

cleared.

Indicates

that

is,

one

MBus

port

the

port

than

driver has turned on at the same time.

That

logic

trying

the

same

time.

this

bit

than

one

set,

to drive

set

the MBus

microprocessor is immediately halted
and RQST INTERRUPT (CSR bit 05) 1is
set. A hardware nonvectored (40 + 2n)
interrupt

forced.

be
cannot
microprocessor
port
The
restarted (CSR bit 32 set) until this
bit

cleared.

UNUSED

Neither the port microprocessor or the

UNUSED

Neither the port microprocessor or the

UNUSED

Neither the port microprocessor or the

KL10 use this bit.

LOOP

IDLE

DISABLE COMPLETE

Indicates the port microprocessor 1is
in the Idle Loop, and is not "hung" in
some other microcode rout'ine.
port
the
that
KL10O
the
Informs
microprocessor placed itself in the
DISABLED

ENABLE

COMPLETE

state.

Informs

the

ENABLED

state.

KL10

that

the

port

microprocessor placed itself in the

COMPUTER

INTERCONNECT
-8~

CSR

BIT

DEFINITIONS

NAME

DEFINITION

UNUSED

Neither
KL10

PORT

CODE

Informs

CODE

port

CODE

Hardwired

CLEAR

microprocessor

PORT

IDENT
that

not

CODE
this

When

set

the

port.

and

all

The

the

KL10, this bit
microprocessor is

The

pertinent

EBUF

bit

This
to

CI20

are

clears

itself

placed

bit

EBus

and

reset

after

the

reset

enables

the

KL10

completed.

diagnostic
do

function

resets

halted

registers

logic

function
TEST

<controller.

control

DIAG

the

field.

RH20

state.

bit.

software

and

that:

PORT

port

this

Three-bit

the

use

PORT

(Cont)

interface

and

loopback

reading

the

EBus

buffer
(EBUF). If the port is not
running
(CSR bit 32 is reset) and this
bit is set, then a KL10:

DIAG

GEN

EBUS

DATAO

loads

DATAI

places

This
to

error.

ERR

DIAG

SEL

LAR

data

EBUF

diagnostic

test

the

forcing

EBus

When

(CSR

bit

EBus

into

data

bit

24)

the

DIAG

SINGLE

CYC

set,

EBUS

also

set

the

there

was

real

KL10

This

diagnostic

error.

DATAI

the

Latch

this

bit

read

reset,

contents

enables

the

CRAM

Address

are

LAR

set

then

bits

DATAI

address,

and

the

diagnostic

microprocessor
bit

MPROC

RUN

(LAR).

and

causes

bit

enables

the

single

cycled.

to
set

(CSR

current

fetched
(RAR).

EBus

port

stored

the

and

the

KL10

bit

sets

32),

the

port

address

from
The

32
the

asserted

microprocessor runs one microcyc
le
halts.
MPROC RUN
is cleared when
microprocessor halts.
The

PAR

CONO,

parity

this

parity

assuming

same

EBus

This

KL10

checker

EBus

DO1-Dl2.

EBUF.

EBus.

enables

parity

decode

this

the

RAM

the

executed

Address

address

and

in the LAR at the completion
microcycle.
The KL10 must read
address
from
the
Latch Address
Register
(LAR)
and load
it
into the
the

RAR

before

executing

the

cycle.

SPARE

EBUS

Reserved
PARITY

ERR

When

for

read

indicated

FREE

QUEUE

ERR

future

the

that

was

detected.

the

KL10,

CRAM

PARITY

Used

Driver

ERR

this

port

there

Free

clears

bit

Queue

bit

error
"1"

itself

and

06) .

inform

are

available

Queue,

parity

written

(CSR

the

Datagram

use,

KL10,

bit

that

entries
Free

this

software

EBus

When

single

on
or

the

Port

free

queue

either

the

Message

COMPUTER INTERCONNECT
-9

(Cont)

jos]

CSR BIT DEFINITIONS
NAME

DEFINITION

DATA PATH ERR

Informs the Port Driver that the port
microprocessor detected an error in

CMD QUEUE AVAIL

Used by the Port Driver to inform the

the DMA data

path.

port that it placed a command queue
entry on a previously empty command
queue.

RESP QUEUE AVAIL

Used by the port to inform the Port
Driver that it placed an entry on the

UNUSED

Not

DISABLE

previously empty Response Queue.

port

place

itself

(set CSR bit

12).

the

DISABLED

Used by the Port Driver to tell the

ENABLE

port to place
state

the

Used by the Port Driver to tell the

port

state

either

used

microprocessor or the KL10.

itself

(set CSR bit

13).

in the ENABLED

When set by the KL10, this bit causes

MPROC RUN

the CRAM Control Register to reset and
enables

the

port

microprocessor

clocks. The port starts cycling at the
address in the RAM Address Reglister
subsequent
and
next
The
(RAR) .
addresses are fetched from the Am2910
sequencer.

Three-bit KL10 EBus Physical Interrupt

PIAOO

Assignment (PIA) field (PI level 01 35

PIAO1

through 07).

PIAOQ2

Port Control Block Content

(See Figure)

Description
——
—
—

Buffer descriptor table (BDT) starting address: The KL10
physical memory address of the first word of the buffer
descriptors. Buffer descriptors contain the information
needed to tell the port where and how to access a data
buffer

KL10

memory.

Message free queue entry length:

The maximum number of

words allowed in an entry on a message free queue. This
is a

software

restriction.

Datagram free queue entry length: The maximum number of
words allowed in an entry on a datagram free queue.
Reserved

Queue Interlock words, FLINKs, and BLINKs.
25-28

Reserved

29-33

Port error words 0, 1, 2, 3, and 4. The port writes the
error words when it encounters a fatal error, writing as
much information as possible directly into KL10 memory.

The KL10 physical memory address of

PCB base address:

The priority interrupt (PI) level assigned to the CI20.

Channel

PCB word 0. The CI20 has no other way to find the PCB.

logout word

address.

Channel command word (CCW): The port writes a CCW-style
word in this location to transfer data over the KL10
CBus. The port driver software writes a channel jump
word in the EPT location corresponding to the RH20
position that the CI20 occupies.

COMPUTER

INTERCONNECT
-10-

PORT CONTROL BLOCK
O

| BUFFER DESCRIPTOR TABLE STARTIN
G ADDRESS

MESSAGE FREE QUEUE ENTRY LENGTH

DATAGRAM FREE QUEUE ENTRY LENGTH

RESERVED

COMMAND QUEUE 3 INTERLOCK

COMMAND QUEUE 3 FLINK

COMMAND QUEUE
3 BLINK

COMMAND QUEUE 2 INTERLOCK

COMMAND QUEUE
2 FLINK

COMMAND QUEUE 2 BLINK

COMMAND QUEUE 1 INTERLOCK

COMMAND QUEUE 1

COMMAND QUEUE 1 BLINK

COMMAND QUEUE O INTERLOCK

COMMAND QUEUE O FLINK

FLINK

COMMAND QUEUE 0 BLINK

RESPONSE QUEUE INTERLOCK

RESPONSE QUEUE FLINK

RESPONSE QUEUE BLINK

MESSAGE FREE QUEUE INTERLOCK

MESSAGE FREE QUEUE FLINK

MESSAGE FREE QUEUE BLINK

DATAGRAM FREE QUEUE INTERLOCK

DATAGRAM FREE QUEUE FLINK

DATAGRAM FREE QUEUE BLINK

RESERVED

PORT ERROR WORD 0

PORT ERROR WORD 1

PORT ERROR WORD
2

PORT ERROR WORD 3

PORT ERROR WORD 4

PCB BASE ADDRESS

Pl LEVEL

CHANNEL LOGOUT WORD 1 ADDRESS

CHANNEL COMMAND WORD

RESERVED TO PORT

MR-14247

INTERCONNECT

COMPUTER
_1]_

Block Content

Port Control

Word

Description

Reserved to the port microcode.

(Cont)

Error Words 0,1 (words 29,30) are written by the port
when it encounters fatal errors associated with queue
manipulation. This error reporting strategy requires the
port to write as much information as possible directly
the
requires
approach
This
memory.
host
the
into

smallest

working

subset

report

errors.

these

for the port

The information in these words provides enough data

determine

driver

where

and

error

type

the

and microcode

hardware

port

error

the

occurred. When the error is detected, the port writes the contents

of the error words in the PCB, enters the disabled state, and

generates

host

interrupt.

The

described

in the following table.

MBZ

) )

FLINK ADDRESS

]

I {

)

in the following figure and

RSP | DFQ | MFQ | D__L

CMD

(

is shown

format of error word 0

) )

MR-14452

Bit Map,

Error Word 0

Error Word

Bit Descriptions

BITS

NAME

DESCRIPTION

CMD

Error occurred while touching a

command

queue entry. The queue with the error is in
QUEUE.

1-2

QUEUE

The command queue that had the error. These
bits are valid only if the CMD bit is on.
00
01

= CMD
= CMD

QUEUE
QUEUE

O
1

= CMD

QUEUE

= CMD QUEUE

RSP

Bit is on if error occurred while port was

DFQ

Bit is on if error occurred while port was

response queue entry.

trying to build a

touching

command

the

datagram

free

queue.

MFQ

Bit is on if error occurred while port was
touching

command

the

message

free

queue.

D L

Bit is on if error occurred while port was

linking a command to & queue. Bit is off if

error occurred while port was-delinking a
command from a queue. Bit is valid only

with

bits

0,4,

7-11

MBZ

Bits are

zero.

12-35

FLINK ADR

Address

entry

and

the

FLINK word

in question.

the

queue

COMPUTER

INTERCONNECT
-]2=

Error

word

port

processor

used

This

word

occurred.

(word

30)

appeared on the EBUS.
following figure.

The

DR'

]

09
|

’;

]

function

FUNC

word

that

the

memory

error

the

same

format

this

word

the

‘

(

]

given

the

when

API

memory

here
of

C?)DE

(

the

access

written

format

00
lA

contains

|IR

PHYSICAL ADDRESS

(,,Ll

|
MR-14257

Error

word

or receiver
given in the

(word

31)

contains

the

spurious

attention.

following

figure.

The

format

data

transmitter

error

word

27 28
ZERO

35
DATA

MR-14252

Error

word 3
(word 32)
contains the channel logout word 1 written
by the port on any kind of channel
error
detected
during
or
immediatly after a DMA transfer.
The format of
error word
3
is
given in the following figure and described
in the following

table.

LXE

MEM |—ADR| —WC

NXM

05
|

|
0

|
35

14
!

)

]

LONG|SHORT| OVER |[COMMAND LIST POINTER

wWC

RUN

[(ADR OF CURRENT CCW+1)
1

{

]

MR-14253

COMPUTER

INTERCONNECT

-13-

3 Bit Descriptions

Error Word

Bits

Name

Description

MEM PE

Memory parity error.

-ADR PE

Not address parity error.

-WC=0

Channel word count did not = 0 when channel

NXM

Channel reference did not exist in memory.

LXE

Error

LONG WC

Port completed transfer,
CCW not

reached.

SHORT WC

Channel

transferred data specified

OVER RUN

did

store

EPT.

after

detected

channel aborts next

but

port

still

were

by CCW,

port sent data but channel

full.

port

If device write,
buffers

but word count in

data.

has

If device read,

buffers were

transfer,

term

port

transfer.

channel

but

req data

empty

Error word 4 (word 33) contains channel logout word 2 written by
or
detected during
error
of channel
the port on any kind
immediately after DMA transfer. The format of error word 4 is

given

figure.

following

in the

]

)

]

(

]

)

08J
)

]

‘

|
|
i
|
CURRENT WORD COUNT

|
|
OPCODE

)

‘

i
Rl
|
CURRENT DATA

BUFFER ADDRESS

]

(

)
MR-14254

STATUS

The

FIELD

STATUS

field

updated

the

port when

builds

response

queue entry. The various valid values of the STATUS field
defined below. Note that bit 0 of the STATUS field defines
definition of

the

remaining

|CLOS

bits.

PATH A

PATH B

ACK | NAK |NRSP|

ACK | NAK |NRSP
MR-14259

are
the

COMPUTER

INTERCONNECT
~14-

BIT

NAME

DESCRIPTION

CLOS

packet

had

transmitted

The

path

retry

failure

successfully

that

failed

and

path

the

type

is indicated
path is also

PATH

ACK

The

packet

PATH

NAK

The

packet

was

ACKed

was

this

NAKed

path.

least

once

this

least

once

path.

PATH

NRSP

The

was

path.

failure

in the Path bits.
The
indicated
marked as being bad
in the VCDT
Circuit Descriptor Table).

(Virtual

but

other

packet received
this path.

PATH

ACK

The

packet

PATH

NAK

The

packet

was

ACKed

was

ReSPonse

NAKed

this
at

path.

least

once

this

least

once

path.

PATH

NRSP

The

packet

this

received

|
1

ReSPonse

path.

ERROR TYPE

]

]
MR-14258

DESCRIPTION

PTH_A

The

error

associated

with

path

PTH
B

The

error

associated

with

path

3-7

ERROR

PATH

TYPE

(402)

ERROR

ERRORS

(404)

ERROR

Invalid

(406)

ERROR

Buffer

Access

Control

violation.

Buffer

Length

(410)

ERROR

Packet

(414)

ERROR

Local

(416)
(420)

ERROR

Internal

ERROR

Invalid

(422)

ERROR

CRC

size

Name,

violation.

unrecognized
port

error

command.

hardware

Remote

reported

received

(424)

ERROR

(426)

ERROR

Command

legal

error.

port.

packet.
path.
not

legal

disabled

state.

(430)

ERROR

PLI

data

SRC

(432)

byte.

ERROR

PLI

data

OPC

(434)

byte.

ERROR

PLI

data

(436)

body.

ERROR

Port

disabled

during

processing.

(502)

ERROR

Path

Errors

Remote

(504)

ERROR

Virtual

(506)

Cicuit

ERROR

Retries

Exhausted

(NAK)

Retries

Exhausted

(NRSP)

(510)

ERROR

(512)

ERROR

unrecognized

Transmitter

command

closed

Timeout

COMPUTER

INTERCONNECT

-15-

PATH

102 => Virtual Cicuit closed
ERROR
103 => Retries Exhausted (NAK)
ERROR
104 => Retries Exhausted (NRSP)
ERROR
ERROR = 105 => Transmitter Timeout
nH

(604)

(606)
(610)
(612)

PATHS

Errors

A,B

ERROR = 142 => Virtual Cicuit closed
143 => Retries Exhausted (NAK)
ERROR
144 => Retries Exhausted (NRSP)
ERROR
145 => Transmitter Timeout
ERROR
wouwon

(704)
(706)
(710)

(712)

PERFORMANCE

PORT

unrecognized command

=> Remote

101

]

ERROR

(602)

Errors

MONITORING

The port microcode implements several counters that are under
the control of the port driver. The command queue entry Set
Counters (SETCNT) allows the port driver to point and/or clear the

counters. It also allows the port driver to enable or disable the
event counting. There is a mask used to control the loading and
enabling of the various event counters. For each counter, there
are 2 bits in the mask; the first bit enables the counting of the
event, and the second bit controls the clearing of the event
counter. The port driver may instruct the port to count events for
a specified port or a cumulative count for all ports.
The

format of the SETCNT command

1is:

FLINK

BLINK

RESERVED FOR SOFTWARE
STATUS

23|24 @————p 31|32 435
15|16 @————w
08 4———»

31132 4935
——

31|32 €935
—

00 =

31|32 4»35

00 *—

MBZ

XCT__ID

00 =

XCT__ID

MASK

—

MBZ

OPC

00 -

MBZ

%
19|20

THRESH
MBZ
+ 23|24 4——»31324»35]
MBZ
PORT

MBZ

QUEUE
LENGTH
—1

RESERVED
FOR
SOFTWARE

MR 14249

DESCRIPTION

WORD:BITS

NAME

3:16-23

OPCODE

OPCODE = 201 octal

6:0-19

MASK

This is the 18 bit mask used to control
the

enabling

and

(SETCNT).

the

counters.

6:0

A ACK
PTH

If on, count ACKs received on Path A.

6:1

A ACKC
PTH

If on, clear the counter.

6:2

A NAK
PTH

If on, count NAKs received on Path A.

6:3

A NAKC
PTH

If on, clear the counter.

6:4

PTHA NRSP

If on, count NO_RéPs received on Path A.

6:5

A NRSPC
PTH

If on, clear the counter.

6:6

B ACK
PTH

If on, count ACKs received on Path B.

6:7

B ACKC
PTH

If on, clear the counter.

COMPUTER

INTERCONNECT
-16-

6:8

PTH
B NAK

on,

count

NAKs

6:9

PTH_B

I1f

on,

clear

the

NAKC

received

6:10

PTH
B NRSP

on,

count

NO_RSPs

6:11

PTH_B

on,

clear

the