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MAINDEC-15-DAQAA-A-D

1972

104 pages

Original

2.2MB

Document:	PDP-15 System Exerciser 19
Order Number:	MAINDEC-15-DAQAA-A-D
Revision:
Pages:	104
Original Filename:	http://bitsavers.org/pdf/dec/pdp15/diag/MAINDEC-15-DAQAA-A-D_PDP-15_System_Exerciser_1972.pdf

OCR Text

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IILl. 6~E n~/V

IDENTIFICATION
PRODUCT CODE:

MAINDEC-15-DAQAA-A-D

PRODUCT NAME:

PDP-15~$Y$mEM EXERCISER

MAINTAINER:

DIAGNOSTIC GROUP

REPLACES:

MAINDEC-15-D7CC-D

TABLE OF CONTENTS
MONITOR (SECTION I)

.!!!.9.L

Monitor Description and Operating Procedures

Operation Codes

Monitor Error Codes

Exerciser/Monitor

Communication Codes

Switch Register settings (Monitor)

SWitch Register Settings (user)

User Programs Available

User Program Format

USER PROGRAMS

(~ION

II)

DECTAP

RS,,915

RP15

MAGTAP

EAEPTI

EAEPT2

XRLR

FP15Tl

FP15T2

TIME

RDRTST

PUNTST

LP15F & C

LT1519

DCIlIEB

VT15

VPlSA

AOlS

CRfl3B

XY1S

BolS

RBrl9

MONITOR DESCRIPTION
AND

OPERA'rING PROCEDURES
SECTION I

MONITOR DESCRIPTION AND OPERATING PROCEDURES
The System Exerciser Program is an exerciser designed to run
all I/O Devices simultaneously and run Central Processor Tests in
the BACKGROUND when no I/O Test is actively running.

Prerequisites

are that the PDP-9/IS have at least 8K of Memory, one DECtape Transport
and Tape Control.

The system is resident on DEC tape Unit ~ and is

loaded via either the DECtape Bootstrap Loader (DEC-9U-LBAA or DEC-lSLBAB).

The system consists of one resident and eight non-resident

sections.
The first part is a Resident Monitor that includes a User Program
Directory: a User Program Link Table; and common monitor subroutines
(TTY and DECTAPE) used by the various non-resident programs.

The

Resident Monitor will run on initial loading and also is called by
typing Control "c" on the keyboard.
The directory can hold up to 30 (10) users programs. Bach user
program takes four locations in the directory.
for the title in .SIXBT.

The first two are

The third is the starting block number and

the fourth contains the total word count.

A user program can be added

to or deleted from the directory to configure the system to a machine
configuration.

The directory can be listed on the teletype.

The Link table contains the first address of all user programs an
can be printed on the Teleprinter.
The second part is a program to add User Programs to the User
File.

This program will input a User Program Tape in relocatable format

from the high speed reader to DECtape Unit ~ and 'update the Directory.
The Adder Program will accept a tape generated by MACRO-IS or bank
relocatable MACRO-g.

A maximum of 30 User Programs can be entered in

the User File.
2

To add a user program to the file, type Control "A" and carriage
return.

Put the binary tape in the reader and write enable DECtape

unit~.

Type the title and terminate with carriage return.

There are several errors that could be flagged by the adder program.
'I'hey are:
1.

Directory full.

Too much leader on paper tape or no reader flag.

Reader no tape.

Wrong paper tape.
radix

so. code.

The title statement on the paper tape is in

There are some characters that cannot be used

in radix 50.

This will require renaming the file and a

reassembly.

The other alternative is the operator called the

tape in the reader by another name.

Remove the tape from the

reader and start again.
5.

Check sum error exists on the paper tape.
position. and start again.

Hark the paper tape

Either the Reader is marginal or

the tape was punched incorrectly.
6.

Program two large.

The maximum assembled size is limited to

4096.
7.

Once the data is written on DECtape, the entire file is
checksummed.

If the checksum is non-zero then the error

message "CHECK SUM ERROR DATA ON DT WRONG" will be printed.
8.

After file is written on tape correctly, the directory is
then updated, and checked for being correct.

If the

directory is incorrect, then a directory compare errcr
message will be printed.

The third pa~t will delete User Programs from the Directory and tape,
and move all succeeding programs toward

the beginning of the tape.

To delete a program, type Control "D" and carriage return.

Write

enable DECtape unit g and type the title of the program to be deleted.
uelete program errors are as follows:
1.

Not in directory.

The title typed in doesn't match

anything in the directory.
2.

Write error.

All files transferred are double buffered

and are checked for being correct.

All data errors will be

re-written and checked up to 10 times.

If this fails, then

the program will abort.
3.

After the programs are transferred, then the directory is
updated on tape and checked for accuracy.

If this fails,

the directory will probably be bad.
The fourth part will list the User Program Directory.

It is called

by typing "0" carriage return. The directory will be read from tape.
The program number, title, and starting block number will be printed.
The last item will be remaining free blocks on the tape.

There is

automatic return to the resident monitor upon completion.

Control

"c"

will abort the operation.
The fifth part will list the User Program core map
loader.

Type "A" and carriage return.

lo~ded

by the

The program will search the

link table, and print the title and the first address of the User program.
Automatic return to the resident monitor will occur upon completion.
Control "C" will abort the operation.

The sixth part is the Loader Program.
by typing ilL" carriage return.

The Loader is used to load programs

for the Interactive Mode Operating System.
page relocateable (.DBREL).
.DBREL and .EBREL.

Entrance to the program is

The default assumption is

The mode is controlled by the pseudo-ops

A parameter that must be determined, is memory size.

Acceptable inputs are 8K, 12K, 16K, 20K, 24K, 28K, or 32K.
all User Programs that are wanted.

Then type

A terminator of carriage returns

with no title typed will start the loading process.

A terminator of

ALT MODE will start the loading process and' print the link table after
loading.

If no memory Size is typed in, then the Loader will return

to the Monitor.

If no programs are entered after the memory statement,

the Chain Mode (Non-Interactive) Operation will result.
The following are possible errors for the loader program:
1.

Program typed not in the directory.

Program already entered.

This prevents multiple

loadings of the same program.
3.

Not enough core for programs wanted.

Check sum error on loading.

Illegal .LOC statement.

'rhe seventh part is the Parameter Mode.

This allows the

operator to modify run parameters of some User PrograMs.
IIp

carriage return.

test.

Enter by

The run parameters are a function of the user

They are the first four locations of the user test.

Commands

to Parameter mode are altmode, carriage return, and up arrow (shift N).
After the title is printed, a carriage return will go to the next user.
To backup to the preceeding user type up arrow (shift N).

To open the

first word for examination and possible modification type altmode.
the first word will be typed.
5

Then

Typing any octal number will erase the previous contents of the
typed word and replace it with the keyboard input.
are not required.
the next one.

Leading zeroes

Typing altmode again will close the open word and open

Typing successive altmodes will open and close words in

succession with no modification.

Control "C" will abort to the

resident monitors.
Th2 eignth part is the Interactive Operating System entered by

typing "X" carriage return.

The operating system will run all

programs loaded with the loader program.
See Switch register settings before starting.

All Central

Processor tests will run with the Program Interrupt on.

All Input Output

tests will run with the Program Interrupt off or disabled by an API
level.

Control "c" will abort to the resident monitor.

The ninth part is Chain Mode Operation.

To run Chain Mode, siMply

type "X" and carriage return without loading any programs.

After

determining the 4K memory field to run in, the programs will be loaded
one at a time and run until completion of one pass.
program in the directory will be loaded and run.

Then the next

If set, the conso18

switch associated with the user test will cause that test not to be run.

SYSTST OPERATION CODES
SYSTST VXX
$ICHARACTER CODE]

CHARACTER
OPERATION DESCRIPTION

CODE

Type Directory of current programs in user

fi~e.

t D (Control D)

Delete named programs from user file.

tA (Control A)

Add named programs from high speed paper tape
reader.

Load named user files into core.

Print User Program Core Map.

Parameter Mode:Modify UODSW's in named program.

Execute Programs loaded in Link Table.

Return to the Monitor.

'C (Control C)
(Rubout)

Delete previously typed character.

MONITOR ERROR CODES

ERROR

NUMBERS

DESCRIPTION

API wanted by operator but is non-

existant or won't turn on.
2

Unidentified program interrupt.

API break to an unused channel.

Memory Parity error

ERROR DISPLAY FORMAT
ERROR #1

ERROR#

IORS

ERROR #2

ERROR#

IORS

ERROR #3

ERROR#

IORS

ERROR #4

ERROR'

API STATUS

API CHANNEL ENTERED

EX~ISER/MONlTOR COMMUNICATION CODES

DEVICE 'ERROR CODE TO MONITOR FROM EXERCI~ER MODULE

DESCRIPTION

ERROR CODE

No error found.

-1

Error found, new I/O opere initiated, re-enter
thru service entrance on flag.

-2

Error found, no new I/O opere initiated, re-enter
artificially thru service entrance.

-3

Error found, no new I/O operation initiated
re-enter via initialization entrance.

-4

Test terminated. If error word count not equal
zero, print error.

-5

No error, no new I/O opere initiated, re-enter
artificially thru service entrance.

-6

U~ed

-7

No error, no new I/O opere initiated, re-enter
thru initialization entrance.

by Real Time Clock to print time.

SWITCH REGISTER SETTINGS

SW~!I

API ~resent and Desired for ALL I/O Tests.
This applies only for devices that can use API.

SW~l

Print Device Error and System status in the first
four', words and return to the Resident Monitor.
Requires "X" to start again.

SW~2

Don't Print Completion of each test.

SW!l3

Eliminate User Error Typeouts.

SW4 .... l7

Temporarily Halt operation of an individual
peripheral. See switch list.

TEST SWITCH SETTINGS FOR HALTING EACH TEST (S.W. UP HALTS TEST)

TEST

SW NO.

LT1S19, OCglEB

AD1S

XRLR

VT1S

TIME, TIMES, CR03B, CR1S

RP1S

VP1SA, FPPT 1 & 2

LP1SF, LP1SC

EAEPT1, EAEPT2

RDRTST

PUNTST, BOIS

RSg91S

OECTAP, DECTPI, DECTPS

MAGTAP, f1AGTPS, XY15

. SYSTEM EXERCISER MODULES CURRENTLY AVAILABLE
PROGRAM NAME
DECTAP
DECTPI
DECTPS
MAG TAP
MAGTPS
RS1I91S
LP15F
LP15C
RDRTS::
PUNTST
EAEPT1
EAEPT2
XRLR

DEVICE CONTROLLER

TC59 MAGTAPE CONTROLLER

80 COLUMN PRINTER
132 COnUMN PRINTER
HIGH SPEED READER
HIGH SPEED PUMCH
SHIFTS AND NORMALIZE
MULTIPLY AND DIVIDE
INDEX AND LIMIT REGISTER
TEST TO 131K
RP1I9, RP15 CONTROLLER
L'r15, LT19
AD15

VT15
VP15A
oe1l1EB

VT15
VP15A CONTROLLER
DClI1EB CONTROLLER

CR~3B

FP15T2

4111111 WORD BUFFER
14J1J1 WORD BUFFER
41111 WORD BUFFER
411'11 WORD BUFFER
41111 WORD BUFFER

RF1I9/RF15 DISK CONTROLLER

RP15
TIME
TIMES
.LT1519
AD15

CR15
XY15
BD15
FP15Tf,:i

COMMENTS

INTERFACE TO UDC AND
FLYING CAPACITOR SCANNER
FLOATING POINT PROCESSOR
FIXED DATA TEST
FLOATING POINT PROCESSOR
RANDOM DATA TEST

60 CYCLE CLOCK
50 CYCLE CLOCK
TO 16 TELETYPES
SEE AD·15 SECTION FOR
OPERATING PROCEDURES
TYPE 611 STORAGE SCOPE
TO 32 TELETYPES
AC TRANSFER CARD READER
1111111 CPM DCH CARD READER
12 INCH AND 31 INCH

1.1

FORMAT REQUIRED FOR WRITING AN EXERCISER MODULE
FOR THE SYSTEM

1.1.1

GENERAL RULES
1.

Assembled Program Size less than 4~97 locations.
Relocatable Format; No. .ABS or .FULL statement.

Data Buffers must be internal.

No Auto-Indexing allowed.

Prohibited Instructions are:
CAL

HLT
LAW FOR ADDRESS CALCULATION
CAF

IOF
ION

EBI
OBI
ISA

EEM

~I{'

LEM
5.

Monitor Devices are Keyboard, Teleprinter,
DECtape Unit ~, API and PI.

PROGRAM FORMAT

The Program Format must start and end in this manner to be able to
interface into the Monitor •

• EBREL
• TITLE

XX-------XX

/
UODS~:

YYYYYY

IUNIT ORGANIZATION AND DESIGNATION WORD
IADDITIONAL LOCATIONS
IFOR USER PROGRAM
IPARAMETERS
ISERVICE ENTRANCE ADDRESS
IINITIALIZATION ENTRANCE ADDRESS
IFILL IN WITH SPACES TO MAKE 6 CHARACTERS
lMASK FOR CHAIN MODE
IMOVE DATA LOCATIONS PAST AUTO-INDEX
IERROR INDICATOR FOR MONITOR
IWORD COUNT FOR DATA WORDS TO BE PRINTED
IERROR CODE FOR SOME ERROR

~
~
~

.DSA SERV
.DSA INIT
.SIXBT 'TITLEA'

.BLOCK 7

SYSERR
ERCODE

g
g
~

IUP TO EIGHT DATA WORDS TO BE
IPRINTED FOR AN ERROR
ILOADING ERCODE WITH MINUS 1
IWILL CAUSE THE CONTENTS OF ERCODE+l
ITO BE PRINTED.

~
~
~
~
~

I
I

!l
I
INIT

SERV

IINITIALIZE SUBROUTINE ENTERED
IARTIFICIALLY BY THE MONITOR.

JMP* IN IT

IEXIT TO MONITOR.

/
!l

ISERVICE ROUTINE.
IF API DRIVEN SJ.\VE
ITHE AC. IF PI AND FLAG SET,
IEXIT TO MONITOR WITH A~=!l; IF PI AND
INO FLAG; EXIT TO MONITOR WITH AC=-l

JMP* SERV

IEXIT

.EHD UODSW

lEND STATEMENT TO ALLOW MONITOR
ITO FIND BEGINNING OF USER PROGRAM.

EXPLANATION OF UODSW FORMAT
~

The first word of actual code i$ the Unit Organization Designation Word.
This word is the principle communication cell between the Monitor
and Module and is used by the Monitor to determine the type of test
that has been loaded.
BIT ~,:

Bit assignment is as follows:

This bit describes the type of test.

Set indicates

the User Diagnostic is an I/O Test.

Clear indicates

a CP Test.

The Monitor will execute the CP Test as a

BACKGROUND Test.

If BIT ~ is set, the address of

UODSW+4 will be entered in either a Program Interrupt
Dispatch Table or an API Dispatch Table.

BIT ,1:

This Bit indicates that the device uses API.

If this

Bit is set, and API is active, then the address in
UODSW+4 will be entered in an API Dispatch Table
with the API Trap Location s~t to a JMS* through
the Table to the device service address.

If the

device service routine is entered, and the User is
capable of using API, then the user must save the
accumulator.

The user then determines if API is active

with the SPI or RPL Instruction.

If API is active, then

the user must restore the AC prior to exiting.

If API

is not active, then Program Interrupt or artificial
entrance by the Monitor caused the entry.

BIT 112:

If set, this tells the user to loop in a portion
~o

of the test determined by Bits 7
UODSW Word.

11 of the

This Bit is set and cleared only by

the operator via parameter mode.
BITS 3,4,

&5:

These bits tell the user to exercise the unit specified
if bit 112 is set.

Otherwise these bits indicate the

transpor::' or unit that is currently under test.

These

bits mean nothing for a CP Test.
BIT 116:

Bit 96 is used to indicate multiple API trap addresses.
The next three locations can be used for up to three
additional API trap addresses.

terminator of ~ in

bits 13 to 17 is used to indicate no more API traps.
BITS 7 to
11:

Bits 117 to 11 are the portion of the test to run i f
bit 92 is set.

Otherwise they should indicate the

portion of the test the user is currently in.
BIT 12:

This bit is set and cleared only by the ope2;'&.'tor in
parameter mode.

If set, the Operating System will not

initialize this test.

It is a no operation bit.

BITS 13 to
17:
These indicate to the monitor the API Channel used
by the device (If applicable).

If API can be used

and desired by the operator, then the Monitor will put
a JMS* to the API Dispatch Table in the Memory Location
equal to API Channel plus forty (octal).
A typical UODSW Word for DECtape would be

6~~91l4.

Unit 3, the operator should change the UODSW to
Test

fl.

The first four words for LT1S19, are

Bit 6 of the first word indicates extra

To 160p on DECtape

739fl1l4; loop unit 3 on

6g4fl32, flllll1l35 , J, ana fl.

API trap addresses.

The

word of II in bits 13 to 17 terminates loading of API trap addresses.
16

The three locations following UODSW are for additional parameters
for user programs.

This use will depend on the user program.

The

UODSW location and the three locations after UODSW can be modified
by Parameter Mode.
UODSW+4 contains the address of the service entrance of the user.
If the user is API Driven, the Monitor will set up in the Trap Address
a JMS* to the service entrance.

If the user is Program Interrupt

driven, or a Central Processor test, the service address will be put in
a Program Interrupt Dispatch Table.

All Central Processor Tests are

run as a BACKGROUND Job.
Location UODSW+5 contains the address of the initialization entrance.
All tests will initialize through this address.
The sixth and seventh locations following the UODSW will contain the
four to six character title.
six characters.

Fill in with trailing spaces to make the

It will be used by the Monitor for error typeouts,

completion messages, and printing the core map.
UODSW+20 is the error indicator to the Operating System.
eight codes that can be set up by the user.

They are -7 to

There are

Zero as a device error indicator means no error.
Minus I as an error indicator tells the Monitor, that an error
exists in the tests error table.
the data table.

'l'he Monitor will get the title and

Then the Monitor will clear.the arDOr indicator only, and

start printing the title and-the data words as determined by the-word count
location in the data table.
new I/O operation.
flag driven.

The device will continue by initiating a

This means that the device will continue to be

If the device gets a second error before the Monitor can

process the first error, then the device test can set the error indicator
to minus two if desired, save the second error in a save table, initiate
no I/O operation and exit.

The Monitor will then process the first error

and enter the test artificially via the service entrance.
17

The device

test must, on all entries to his service entrance determine the status
of his save table, set the error indicator to -1, initiate a new I/O
operation and exit.

Now the device will be flag driven again.

A possibility might ~xist where the user test might want to
be entered via the initialization entrance.

Setting the error

indicator to minus three and initiating no I/O operation will
cause the ~onitor to prj~t an error and enter via the initialization
entrsBce.
A test should be designed to run about 4 or 5 minutes for one
pass.

After one pass, the test should initiate no new I/O operation,

if flag driven, and set the error indicator to -4.

The monitor will

look at the word count location (UODSW+21) and if non-zero will
the error.

prLn~

The monitor will then get the title from UODSW+6 and 7

and print 'TITLE DONE' if desired by the operator.

Then either

reinitialize the test if in interactive mode or dismiss the
test if in chain mode.
An error indicator of -5 will cause the monitor to enter the test

via the service entrance with no error printout.
An error indicator of -6 issued by the real time clock to print the

time.

It is handled like -1 except that no error halt

(SW~l=l)

will

occur.
An error indicator of -7 is used to cause the monitor to enter via

the initialization entrance with no error typeout.
Any other indicator is invalid.
An example of Monitor Interface coding appears in the listings
under the program name DOCUM.

Care should be taken in using the

coding as an example to make sure that it is adapted properly to any
new user program to which it is applied.
18

MODULE DESCRIPTIONS
FOR
SYSTEM EXERCISER
SECTION II

GENERAL DESCRIPTION
The purpose of this test is to operate up to seven DECtape
transports, randomly selecting each and using random data so as
to simulate system operation.
used.
b"~fer;

They vary only in the buffer size

DECTAP has a 4000 word buffer; DECTPI has a 14~~ word
and DECTPS has a 400 word buffer.

Determination of the

availability of specific transports is done by polling during
initialization.

Placing a particular transport in the ready

s'tate with write lock off will cause its inclusion in the
group to be tested.

Any errors which occur during operation

of the test are transmitted to the system monitor for display
on the console teleprinter in standard

system format.

test terminates automatically after 440 (Qctal)

The

op~rations

per: transport.
OPERATION
Initialization of the Exerciser includes polling all 7
possible transport "Rewinding" each one found to be present to
block 3 and finally writing a single 400 word record.

Successful

completion of this operation requires that the transport
selected be on-line and with the write-lock-out switch off.
Continuous operation of the exerciser module involves writing
or reading variable length strings of DECtape blocks.

The

method of selecting operations (read or writes) and the lengths
of the strings of blocks to be operated upon is as follows:
Bit maps are

kept~

one for each transport, to keep track of

those blocks which have been written in as the test proqresses.
Using the starting block no. of the
operated upon this transport and
20

s~ring

previously

a ranQQmly selected offset of from ~i to 6, the start block for
the new string is selected.

The corresponding bit map locations

are examined to see if this new start block had been previously
written into.

If so, a read is selected as the next operation.

If not, a write is selected.

In any event, the length of the

string of blocks which is to be operated on, will be no longer
than either a randomly selected length from 1 to 10 or the number
of consecutive blocks of the same type as the first as indicated
by the bit map, which ever is smaller. As more and more blocks
become written in, the Exerciser switches over from ~redominately
write to predominately read operations.

As each block is written,

a block no. is written as the first word in the block and a
two's complement sumcheck 'are included.
the block is re-read later.

These are checked when

If a discrepancy is found, and

error is displayed.

DECTAP

DECTAPE ERROR CODES

ERROR NO.

ERROR DESCRIPTION

No transports available for test

Select error

WC/CA inconsistency after read or
write

Other status B errors

API error - API entry with no
DECTAPE flag

Illegal block no. read from DEC
TAPE

Sum check or recorded block no.
error.

Parity error and amount of failing
retrys in bits 0, 1, 2 of WDI

6
7

ERROR FORMAT NO.

~~========================~============

DECTAP

ERROR FORMATS

ERROR FORMAT NO.

FORMAT DESCRIPTION

Error no. only (abort operation)

WD I Error no.
WD 2'Status A Reg.
WD 3 Status B Reg.
we 4 Block no. read from DEC Tape.

WD I Error no.
WD 2 Status A Reg.
WD 3 Status B Reg.
WD 4 Initial WC.
WD 5 Final CA
WD 6 Initial CA
WD 7 Final CA
WD 8 For ER. 4 last block no. read from tape

WD 1 Error no.
WD 2 Status A Reg.
WD 3 Status B Reg.
WD 4 Error block no. read from tape.
WD 1 Error no.
WD 2 Status A. Reg.
WD 3 Block no. read from tape
WD 4 Max. no. of blocks in this operation
WD 5 Buffer index at error.
WD 6 Sum check difference value.

DECTAP
STATUS REGISTER A CODES

BIT NO.

DESCRIPTION

o
1

Unit selection no.

(0-7)

2
3

Direction: O=forward, l=reverse

Motion: O=stop, l=go

Mode: O=normal, l=continuous

6
7
8

Command:

Interrupt enable flag: O=disable, l=enable.

Error flag: O=clear it, l=undisturbed

DECtape flag: O=clear it, l=undisturbed

6 Write timing & Mark
o Move
3 Read all
Track
1 Search
4 Write Data
2 Read Data 5 Write All 7 Unused.

DECTAP

STATUS REGISTER B CODES

BIT NO.

DESCRIPTION (IF SET)

Error flag

Mark Track Error

End of Tape

Select Error

Parity Error

Timing Error

6
7
8

tlnused

10
11

Dectape flag

DECTAP

PARAMETER MODE

MODE NO.

OPERATION

RANDOM EXERCISER

READ Ff'EST

WRITE TEST

PARAMETER MODE INPUT WORDS
UODSW+l = Data Patterns used for read or write test

= REC Length
UODSW+3 = Run length in bits gl-17.

UODSW+2

If zero then 440 operations will be

done before a done statement.

If non-zero, the contents of

Bit gl-17 will be the total operations before done statement.
Bit ~~ is to suppress timing error typeouts.

If a system is

run on Program Interrupt, and many I/O devices are running,
then a DECtape timing error could occur.

This could also

happen with API if there are other devices with higher
effective priority.
g~

supp~eB3

in UODSW+3.

this error typeout, set bit

_'._ .. _. ______ ... ________ ~_.: J!SIf9lS EXERCISER MODULE
This program runs in two modes1.

Exercise ali, disks (normal mode)

Exercise disk and-track with test number as indicated
by the UODSW (looping mode)
This program exercises each disk that is plugged on line.

2048 word record is written, write checked and read.

The first disk

is selected and the "Non-Existant Disk" bit is tested for zero.
NBD bit

is not zero the next disk is selected.

If the

tihen the NED bit is

zero the program selects each track in turn, and writes then write
cheeks a 2,48 word record of random data.
next disk is selected and written on.

When the disk is filled, the

After all of the disks have

been written each disk is selected and each track is read.

The random

data is recreated for each record to verify its accuracy.

The random

data is generated using as the first word, the track and disk number
(TTTTTT " " , DOD ",).
recreatable.

The data for each track is different and

After all of the disks have been read and write checked

on each track of each disk.
p~ogram

When Bit 2 of the UODSW is a one the

operates one track of a disk a given number of times.

The

disk track and test are selectable by inserting the appropriate numbers
in the UODSW'swith Parameter mode (see UODSW's description).

The

random data records are generated the same way as for the normal test
sequence.

The same error typeouts are used for both modes.

DESCRIPTIONS OF UODSW'S FOR RS@91S

Bit II = 1 I/O test
Bit 1 = 1 Device uses API
Bit 2 = II normal, test all disks
= 1 looping test one track
Bit 3, 4, 5 when Bit 2 = II program inserts disk number
currently being tested.
when Bit 2

1 operator inserts disk number to be
tested.

Bit 6 = II
Bit 7-11 when Bit 2

II program inserts number to indicate
test being done.
WRITE random record
1
2
WRITE check
3 = READ
4 = WRITE pattern record
5 = WRITE check

When Bit 2 = 1 operator inserts test number to be used.

II Repeat normal test sequence----write,
write check, read and compare random
record, write and write check pattern
record.
1 Create random record, loop on write
record.
2 Create and write random record, loop
on write check.
3 Create and write random record, loop
c1n read and compare.
4 Create pattern record, loop on write
5 Create and write pattern record, loop
on write check.
6 Loop on read record.
7 Create and write pattern record, loop
on read.

Bit 12

= fI run
= 1 don't run program.

Bit 13-17 = 23 API channel (addresses location 63 in API
dispatch table)

UOD 1

Bit 11-6

indicate track number to loop on when
UODSW Bit 2=1

Bit 7-16

not used.

Bit 17

Suppress DCH error typeout.

Bits 11-17

data pattern to generate pattern records
when UODSW Bit 2=1

Y2P...l.
Bits 11-17

number of times to loop when UODSW Bit 2=1
= 1 time
1 = 2 times etc;
777777 = max number of times.

PARAMETER MODE OPERATIONS

MODE NO~

DESCRIPTION

Perform normal test sequence:
Write, Write check, Read and Compare Random Record
Write and Write Check Pattern Record.

Create Random Data Record, Loop on Write Record.

Create and Write Random Data Record, Loop on Write
Check

create and Write Random Data Record, I,oop on Read
and Compare.

Create Pattern Record, Loop on Write.

Create and Write Pattern Record,
Check

Loop on Read Record.

Create and Write Pattern Record, Loop on Read.

~oop

on Write

RS@91S ERROR CODES

ERROR NO.

BRROR DESCRIPTION

. ERROR FORMAT

HDW, MXF, DCH

WRITE CHECK

PARITY (DATA OR ADDRESS)

DATA COMPARISON DIFFERENCE
BETWEEN CALCULATED DATA AND
DATA READ FROM DISK.

WRITE LOCK OUT (FIRST accu

API ENTRY AND NO DISK FLAG

fJ
fJ

ERROR FORMATS

ERROR FORMAT NO.

FORMAT DESCRIPTION
WDI

DTTTJlE

WD2

STATUS REGISTER

WDI

DTTTJlE

WD2

STATUS REGISTER

WD3

WORD READ FROM DISK

WD4

WORD COMPUTED TO BE CORRECT

WDS

WORD POSITION IN BUFFER

D = Disk number
TTT = Track number
E

Error number

Number of failures during retrys.

un a Write check or Parity error five retrys
will be made and the number of failures during
those retrys will be in bits 12, 13, and 14 of
the status registers.

•e
•

STATUS REGISTER

BIT ~~

Error Flag

BIT ~1

Disk Hardware Error (HDW)

BIT ~2

Address Parity Error (A.PE)

BIT ~3

Missed Transfer Address (MXF)

BIT ~4

Write Check Error (WDE)

BIT ~5

Data Parity Error (DPE)

BIT ~6

Write Lockout (WLO)

BIT ~7

Non-Existant Disk (NED)

BIT ~8

DCH Timing Error (DCH)

BIT ~9

Program error (PGE)

BIT

VIT 15, 16, 17

Transfer Complete (XFC)
~~X

No Effect

,0'1X

Read

l~X

'V]ri te

11X

Write-Check

•
e

•

DISK PACK EXERCISER MODULE
This exerciser module is designed to exercise up to 8 RPlS
Disc Pack units under control of the PDP-IS System Exerciser Monitor.
The method used in performing the test consists of first determining
thru polling, which units are available and on line.
then are included in the set to be tested.
octal word records

a~~

These units

Using random data, 5000

written on and read from each unit in turn.

Since the locations written on each disk pack are determined by the
three parameters. cylinder, head, and sector address, records are
written varying each of these three addressing parameters throughout
its range while holding the other two constant.

For example,

cylinder and sector addresses are kept constant while varying the
head addresses tnru ead: of the 20 heads, etc.

As each sector is

written, it has included in it both a block address and a sumcheck
word.

After writing has been completed on a particular unit each

previously written record is then re-read and its contents checked.
These errors, if they occur, along with any errors reported by the
Disk Pack controller are transmitted to the monitor for display on
the teleprinter.
halted.

Console Switch 9 allows operation to be temporarily

Parameter mode operation is not available with this module.

RPIS-ERROR CODES

FORMAT NO.

ERROR NO.

DESCRIPTION

API Error

Block Address error found in
rec. just read.

Sum check error found in rec.
just read.

4 *

Error flag from disk pack or
controller.

All out of disk packs.

Deleted Unit

Five retrys will be made on parity ,format , and

header not found errors. The retrys that failed will
be in the first digit of WDl.

ERROR FORMATS

FORMAT DESCRIPTION

ERROR FORMAT NO.

WDl

Error number

I·WDl
WD2
WD3
WD4
WD5

Error number
Status A
Status B
Controller Address Register
Block number from read from disk
Block number whtch should have been
found.

WDl
WD2
WD3
WD4
WD5

Error number
Status A
Status B
Controller Address Register
Difference between read and calculated
sumcheck.

WDI
WD2
WD3
WD4

Error number
St:atus A
St.atus B
Controller Address Register

WDI
WD2
WD3
WD4
WD5

Error number
Unit # deleted
Status A
Status B
Controller Address Register

RPIS

..-----rhne arii error flag interrupt disabled = 11
Attention flag interrupt disabled = 11

Bit=l
Write protect error
:-existent cylWer address
Non-exi.stent surface address

Ntln-existent sector address

Selected unit is write p r o t e c t e d l - - - - - - - - - -

Unit
Selected

o = unit 0
I = unit I

2 = unit 2
3 = unit 3
4 = unit 4
S ~ unit S
6 = unit 6
7 = unit 7

Function

o = idled

Selected lmit is seek i.ncarplete

I = read

Job done flag - - - - - - - - - - . .

2 = write
3 = recalibrate
4 = seek
S = read all
6 = write all
7 = read caupare

Error f l a g - - - - - - - - - -

STATUS REGISTER A BIT ASSI~

RPIS
~ttenti.on unit

---Attention unit 1
r--i\ttention unit 2
...-Attention unit 3
-Attention unit 4
,Attention Wli t 5
Attention unit 6

tion unit

... .,

I 0 I1 I 2 I 3 I 4 I
w

Selected unit unsafe

.Ir

I 6 I 7 I 8 I 9 I 10 I 11 1 12 J 13 I 14 T 154. 1 16 I 17Al

.. ~

~er~r--------------------------~
End of pack-----------------~
Timing erro~:..-....---------------------J

Fonnat error.:...--------------------L

write ~ erro!~~---------------------~
Word parity errolP------------------------I

P-----------..J

Longittrlinal. parity ~I...

Selected unit seek underwa.lv------------"
Selected uru.t not rea~------------------.J

STA'IUS RmISTER B BIT ASSI~

MAG TAP EXERCISER MODULE
GENERAL DESCRIPTION
The purpose of this test is to operate from 1 to 8 TUlO, TU20, or
TU30 tape transports selecting them randomly using random modes and
data in such a way as to simulate system operation.

This test is

available in two versions that differ only in program buffer size (and
of course record size).
a 400 word buffer.

MAGTAP has a 4000 word buffer where MAGTPS has

Determination of the availability of specific

transports is done by polling during initialization.

Placing a

particular t~ansport in the ready state will cause its inclusion in
the set to be tested.

Any errors which occur during operation of the

test are transmitted to the system monitor for display on the console
TELEPRINTER in standard system format.

The test terminates auto-

matically after 2000 operations have been performed.

As more transports

are added, the amount of operations per unit will decrease.

To increase

the operation time per transport, set some number greater than 2000 and
less than 377777 in UODSW+3 with Parameter Mode.
OPERATION
After polling for available transports, records of random data will
be written.

These records will vary in size between buffer size

(4000 or 400) to one twentieth of buffer size.

The first word in

the record size.

The last word will be the two's complement checksum

of the record.

When a record is read, the record number, record size

and checksum are all checked.

This in addition to hardware checks

verify the data path from memory to tape and back to memory.

addition to data checksumming, each successful operation is checked
for the correct Word Count and Current Address at the completion of
the operation.

PARAMETER MODE OPERATIONS
WRITE EXERCISER TEST I
The purpose of this test is to provide a method of continuously
writing records of equal length on a particular transport.
transport to be used is selected by polling.

The first ona found

in the ready state being the one chosen for operation.
errors are displayed on the teleprinter.

The

Detected

The write buffer is set to all

ones and density and parity set to 800 BPI, ODD PARITY.

2000 uniform

length records of the maximum buffer size. are written ending with
termination of the test, and rewinding of the transport.
WRITE-READ TEST 2
This test is an extension of test I in that 2000 uniform length
records are written, the tape transport is rewound, and then the
same records re-read.
~'~::. ones,

As with the previous test, the data used is

odd parity and 800 BPI.

SIMULATED COpy TEST 3
The purpose of this test is to simulate a randomly variable length
record copy operation.

The data used is random, odd parity, 800 BPI.

Operation of the test is as follows:

The transports are polled as

before with the first two found to be ready being the ones which
are selected for use.

The first transport is used a

the source

with approximately 2000 random length records being written on it.
After the first transport is' rewound, and with the second transport
being used as the destination, the data previously written on the
source tape is copied to the destination tape.

Upon completion

of this operation, both transports are rewound and test terminated.

PARAMETER MODE
MODE NO.

OPERATION

Random Exerciser

Write

Write Then Read

Copy

Bit 2

1 in UODSW Enables Modes 1-3.

PARAMETER MODE INPUT WORDS
UODSW + 1 = Data Pattern to use in Tests land 2.
UODSW + 2

Record Length to use in Tests 1 and 2.

UODSW + 3

Bits

~l-17

statement.

are the number of operations before done
As the number of transports increase, the

operations per unit decrease.

To increase the operations

per unit, insert a number greater than 2000.
case of ~ will give 2000 operations.
is used for the DATA LATE error.

The default

Bit ~~ (if set)

If the operator is

aware that the DATA LATE is caused by excessive Data
Channel operations from other devices, or desires ,to
suppress this error, he can set bit

in UODSW +3.

The

program will backspace and retry the operation that had
a DATA LATE error with no error typeout.

** The third character in UODSW is the density for 7 track drives.
The default is 800BPI.
with Parameter Mode.

It can be made to run at 200 or 556 BPI

MAGTAPE ERROR CODES
ERROR DESCRIPTION

ER. NO

ERROR FORMAT NO.

Controller not ready

Transport not ready

Illegal command return from controller

Error flag, no cause status bits

Nonsense status bits returned for this
command

Bad tape detected

~arity

error detected

Data request late detected

Inconsistent WC/CA after read

On read:
Short REC.:
WC;iO
or REC. LEN INCOR. BIT
NOT SET.
Full REC.
WC;i
or REC. LEN INCOR. BIT SET

Inconsistent WC/CA after write

WC;iO after write

Write end of file status bit not set after
write EOF.

API error-API entry with no MAGTAPE flag

Calculated WC error on write part of copy

No transports available for test

REC. Length, written in REC., not equal
Length of REC. READ.

Sum check error on READ.

Block no. incorrect in record.

ERROR FORMATS

FORMAT DESCRIPTIONS

ERROR FORMAT NO.

Error no. only.

(aLort operation)

WD I Error no.
WD 2 Command

(Delete this Transport)

2 *

WD I Error no. (continue operation)
WD 2 Command
WD 3 Status Reg.
WD 4 Initial word count
WD 5 Final word count
WD 6 Initial current address
WD 7 Final current address.

------------I--------------~

------'-"--"- -----_ .. -.

WD I Error no. (continue operations)
WD 2 Command Register
WD 3 Status Register
WD 4 C (CNTR) i calculated record number
WD 5 C (BUFI); record number from tape
WD 6 C (BUFI+I)i record length from tape
WD 7 Record length calculated from final

w.c.

WD 8 Sum check difference

On parity errors, there will be 5 retrys.

The amount of failing

retrys will be present in the first digit of WDI

TC-59 COMMAND REGISTER CODES
BIT NO.

a
1

DESCRIPTION

}

Unit selection no.

(0-7)

unit selection no.

(0-7)

Parity: O=even, l=odd

Core Dump Mode

Write extended inter record gap

6
7
8

}

Command

a No-op

3 Read/compare

1 rewind 4 Write

2 read

6 Space Forware
7

Sp~ce

Backware

5 Write EOF

J
9
10
11

Intel~rupt

}

enable flag:

Recording density

O=disable, l=enable.

~f6

200 BPI

$11

556 BPI

If6

800 BPI

800 BPI 9 channel

TC-59 STATUS REGISTER CODES
BIT NO.

DESCRIPTION (WHEN SET)

Error Flag (EF)

Tape Rewinding

Beginning of Tape (BOT)

Illegal Command or Transport Decelerating

Parity Error (Lateral or Longitudinal)

End of File (EOF)

End of Tape (EOT)

Read/Compare Error

Record Length Incorrect [WC=O (long),
WC;-!O (short)J

Data Request Late

Bad Tape

Magnetic Tape Flag (MTF) or Job Done.

12
13
14

}

Character counter bits.
No. of Tracks, This Handler. 1=7 TRK.,

~=9

TRK.

EXTENDED ARITHMETIC ELEMENT OPTION PART I
The Purpose of this module is to exercise the EAE option if it
is available on the system under test and also to provide a BACKGROUND
task for the Central Processor unit during system operation.

All modes

are exercised with the exception of Multiply & Divide which are handled
by EAE PAP~ 2.

The method used to prepare this exerciser was to adapt

the original EAE PART 1 Diagnostic

(Maindec-15-D~9A-D

operation under the system exerciser monitor.

(0»

for

Almost the entire test

has been preserved and reference can be made to the original Diagnostic
for details of operation.

Error indicators were modified to conform to

the error display procedures

availabie~in

the monitor.

This consisted

of removing the Headers, etc. from the typeouts of the original, but
still presenting the contents of the various error information cells
in multiple lines if necessary.

This first wo~d represents the

address at which the error was detected.

Reference to the listing at

the location and the original Diagnostic write-up

(Maindec-15-D~9A-D)

will provide information relating to the cause of the error and the
significanoe of the various error words displayed on the console
typewriter.
Scope looping, suppression of error typeouts etc. have been
eliminated.

Switch 12 is used to cause the test to holu temporarily.

There is no parameter mode option with this test.

EXTENDED ARITHMETIC ELEMENT OPTION - PART 2
The purpose of this exerciser module is to provide a test
for the ·multiply and divide portions of the EAE Option, if
it is available on the system under test.

It also provides

a BACKGROUND Task for the CPU during systems operation.
The method used to prepare this exerciser consisted of
extracting the basic Hardware Tests and Software Multiply
and Divide simulators from the original EAE PART 2 Diagnostic
. Test and adapting them for use under the System Exerciser
Monitor.

In the Basic Test, Random numbers are selected

for the Multiplier/Multiplicand for

multiply or the

Dividend/Divisor for divide and the corresponding operation
performed by both the Hardware and the corresponding
Software Simulator.

The results are then compared and

an error indicated if a discrepancy is found.

In each case,

300,000 octal operations are performed.
Under Parameter Mode Operation, either Multiply, Divide or
both can be selected.

In each case, the starting values

for Multiplier/Multiplicand or Dividend/Divisor are
taken from UODSW's 1, 2, and 3 as follows:
UODSWI
UODSW2
UODSW3

/HIGH ORDER DIVIDEND
/MULTIPLICAND OR LOW ORDER DIVIDEND
/MULTIPLIER OR DIVISOR

After each operation is performed and checked, the multiplicand
or the dividend is incremented by one and the next operation
done.

This continues 300,000 octal times.

multiplication
both.

Test 1 performs

only, Test 2 division only and Test 3 does

As with EAEPTl, Switch 12 is used to cause temporary

suspension of operation of the test.

ERROR CODES

ERROR CODE

DESCRIPrIOO

Bad Multiply-Software MPY , Hardware MPY.

Bad Divide - Software DIV ':F Hardware DIV.

ERroR :ro~S

ERROR 1 - MULTIPLY ERroR

IDRD 00.

~RD

DESCRIPTION

WDl

Error Code

WD2

Multiplier

WD3

Multiplicand

WD4

Hardware ... Hi order Product

WDS

Hardware - 1.0 oreIer Product

WD6

Software - Hi order Product

WD7

Software - 1.0 order Product

ERROR 2 - DIVIDE ERROR

OORD 00.

~RD

DESCRIPrION

WDl

Error Cbde

WD2

Hi order Dividend

WD3

10 order Dividend

WD4

Divisor

WDS

Hardware Quotient

WD6

Hardware RaTainder

WD7

Sof twa::-r- Qlotient

WDB

Software Panainder

PARAMEn'ER MDE OPERATICN

DESCRIPI'ICN .

~ nunbers

selected.

Multiply only.

Start parameters in U)~ 1, 2, &.3.

Divide only.

Mul tiply thPJl divide.

Both nultiply am divide.

Start par~ters in lX>DSW 1, 2, & 3.

FOR MlJI1l'IPLY

Start paraneters in l.IDSW 1, 2, & 3.

FUR DIVIDE

N/A

Hi order dividend

Mul tiplicand

10 order dividend

Multiplier

Divisor

XR!LR EXERCISER MODULE
DESCRIPTION
This program is designed to exercise the Index, Limit registers
and all related control and transfer instructions of the PDP-IS.
Provision is made via means of PARAMETER mode to test indexed addressing
of all additional memory above 32K up to and including 128K.

Provision

is also made via means of PARAMETER mode to loop on any specified test
(1-12) of the XRLR test.

The program starts by testing simple data

transfer between the AC, XR, and LR and gradually builds in complexity
testing such things as indirect index auto incremented addressing up
thru 128K of memory if available.

Console switch 6 halts the XRLR

test.
PARAMETER MODE OPTIONS
A.

using Parameter mode to indicate the additional memory above 32K
up to 128K.
1.

The locations of UODSW+l, +2, and +3 may be modified to represent
the number of available fields in BLOCK 1, BLOCK 2 and BLOCK 3
of memory respectively.
Example:
To represent that memory fields

and 7 are available in

BLOCK 1, UODSW+l would be modified to contain

2~1,

where

field ~ is represented by bit 17 and field 7 is represented
by bit

l~.

If all 8 fields were available UODSW+l would be

modified to 377.
u.

Using Parameter mode to indicate the desired test to be looped on
(1-12) .
1.

Provision is made for the operator to loop on any specified
51

test via modifying the UODSW location.

Setting bit 2 of the

UODSW word and placing the desired test number in bits
7 to 11 will cause the program to loop in the desired test
when the test is run.

The program will stay in this test

until the program is either re-loaded or the location is
again modified via the operator.

ERROR DESCRIPTION
Fourteen (14) possible errors may be detected by the XRLR test.
ERROR CODES

DESCRIPTION

~~~~~l

Processor won't enter Page mode.

~~~~~2

Processor won't enter Bank mode.

~~~~~3

Bad data transfer XR TO LR

~~~~~4

Bad data transfer LR TO XR

~~(I~~5

Bad data transfer AC TO LR

~~~~~6

Bad data transfer AC TO XR

~~~~~7

Bad data transfer XR TO AC

l~)

~~~~l~

Bad data transfer LR TO AC

11)

~(I{I~ll

AC failure

12)

~(I{I~12

XR failure

13)

~~fI~13

LR failure

14)

fI~flfl14

Bad data transfer to LOC. ~ of extended field.

15)

~(I~{l15

Bad data transfer to LOC. 1 of extended field.

16)

~fI~~16

Bad data transfer to LOC. 7777 of extended
field.

ERROR FORMAT
vIOl

Test number

WD2

Error code

WD3

Unrelocated address of· failure

WD4

Bank and field bits

WD5

WD6

WD7

FPlS EXERCISER MODULE PART 1
DESCRIPTION
This module is designed as an instruction test exerciser for
the FPl5.

7he method used to prepare this exerciser was to adopt

as closely as possible the original RPIT03 INSTRUCTION TEST PART 3,
~·AINDEC-15-DOVA.

'I'his module checks the ins:truction capability of the

FPU using selected instructions and selected, known data.

All tests

are performed in user mode although the diagnostic mode is employed
to dump out the 16 FPU registers for error reporting of errors 5-101.
OPERATION
The instructions covered

by RP15Tl (in approximately the following

order) are:
A.

LOAD and STORE JEA.

BRANCHES (conditioned and unconditioned).

LOAD, SWAP and STORE.

FIX and FLOAT.

ADD, SUBTRACT AND REVERSE SUBTRACT.

MULTIPLY.

DIVIDE and REVERSE DIVIDE

JEA TRAPS

INDIRECT ADDRESSING

EXTENDED MEMORY ADDRESSING (if available)

PARAMETER MODE OPTIONS
Parameter mode can be used to indicate the amount of extended
memory above 32K and also used to set up an error loop for errors
5 thru 101.

Using parameter mode to indicate the amount of extended
memory above 32K up to l28K.
1.

The locations of UODSW+l and +2 can be modified to
indicate the available fields in BLOCK 1, BLOCK 2,
(UODSW+l) and BLOCK 3 (UODSW+2).
where:
Bits 0-7 of UODSW+l = BLOCK 1, fields 0-7
Bits 9-16 of UODSW+l = BLOCK 2, fields 0-7
Bits 0-7 of UODSW+2

= BLOCK 3, fields 0-7

Using parameter mode to set up an error loop fori errors
5 thru 101.
1.

Set the location of UODSW to 100000 (Bit 2 set to indicate
error looping requested) and set UODSW+3
of the failing test.

~he

to the *address

failing test will be looped

eternally when the program is executed.
*Refer to error format
the failing test.

N~.5

to determine the address of

AC SWITCHES
AC SW10 (0) NORMAL FP15Tl OPERATION
AC SWI0 (1) INHIBITS FP15Tl TEST
ERROR CODES
ERROR CODE

DESCRIPTION

FP15 Configuration not present

No BRANCH occurred with conditions set

A BRANCH was executed without
conditions set

Unexpected JEA break occurred

LJE error

1ST error

ELD error

UNFLD error

URFLX error

EAD error

UUDAD error

ESB error

UUDRS error

IMP error

UUDMP error

IDV error

IRD error

EDV error

ERD error

FAD error

URFAD error

UNFAD error
56

ERROR CODES (cont'd)
ERROR CODE

DESCRIPTION

UNDST error

URDl-1P error

UNDMP error

FDV error

URFDV error

FLD error

FRD error

URFRD error

DDV error

URDDV error

OLD error

DRD error

URDRD error

JEA DID NOT OCCUR

JEA STORED WRONG ADDRESS

Load error from Extended Memory

Load Indirect error from Extended
Memory

Store Indirect error from Extended
Memory

LJE Indirect error

SJE Indirect error

ILD Indirect error

1ST Indirect error

ELD Indirect error

EST Indirect error

ERROR CODES (cant'd)
ERROR CODE

DESCRIPTION

UNDLD Indirect Error

UNDST Indirect Error

100

UUDAD Indirect Error

101

LOAD and STORE Indirect Error

ERROR FORMATS
ERROR 1 - FP1S Configuration no present.
WORD NO.

WORD DESCRIPTION

WD1

Error Code

ERROR 2 - No BRANCH with conditions set.
WORD NO.

WORD DESCRIPTION

WD1

Error Code

WD2

BRANCH "lOT"

WD3

(FMA)

Error 3 - BRANCH was "executed without conditions set.
WORD Nq.

t;ORD DESCRIPTION

WD1

Error Code

WD2

BRANCH "lOT"

WD3

(FHA)

ERROR 4 - Unexpected "JEAn BREAK
WORD NO.
WDI

vlOtID DESCRIPTION
Error Code

WD2

1 JEA "OVERFLOW" error

WD2

2 JEA "UNDERFLOW" error

WD2

3 JEA "DIVIDE" error

WD2

4 JEA "HEM. VIOL. " error

NOTE:

'rhis is followed by

the 16 FPU registers.
fer to ERRORS for full
description.

Re-

ERROR FORMATS (cont'd)
ERROR 5 - All other data and instruction errors (5-101)
WORD NO.

WORD DESCRIPTION

WD1

Error Code

WD2

Bad Data

WD3

Expected Data

WD4

Address is listing where error occurred.

WD5

"LOOP" address (for parameter mode)
Followed by the 16 FPU registers:

WDI

MBH

WD2

MBL

WD3

SIR

WD4

EPA

WD5

FAR

WD6

FAL

WD7

EPB

WD8

FBH

1-8

,WORD NO.

WORD DESCRIPTION

WDI

FBL

WD2

MQH

WD3

MQL

WD4

ADH

WD5

ADL

WD6

JEA

WD7

STA

WD8

ADR

9-16

Fl?lS EXERCISER MODULE PART 2
DESCRIPTION
This module is designed to simulate system usage.

A predetermined

ratio of 2S6 hardware operations to 1 software calculation is employed
to optimize this system effect.

The method used to prepare this exerciser

was to adapt as closely as possible the random test section of the
original PDP-IS FLOATING POINT RANDOM EXERCISER MAINDEC-15-DOWA.

1\11

tests are performed in user mode although the diagnostic mode is employed
to dump out the 16 FPU registers for reporting errors 2-7.
OPERATION'
The instructions covered by FP15T2 are stored in a buffer which is
scrambled every 1000 passes and reset to the listing every 2000 passes.
PARAMETER MODE
No user switches are available in the program.
[I.C SWITCHES
. AC

SWlO (1) Inhibits RP15T2 test

ERROR CODES
ERROR CODE

DESCRIPTION

FP15 configuration not present

FP15T2 Data error

Unexpected JEA break

Expected JEA break but none occurred

LOAD/STORE FA~LURE

Unexpected BRANCH occurred

No BRANCH occurred when expected

NOTE:
Errors 2-7 are followed by a typeout of 17 diagnostic aid registers,
refer to ERROR FORMAT error l~.
ERROR FORMAT
Error 1 - FP1S configuration not present.
WORD NO.
WDl

WORD DESCRIPTION
Error Code

Error 2 - FP1ST2 Data Error
WORD NO.
WDl

WORD DESCRIPTION
Error Code

Error 3 - Unexpected JEA break
WORD NO.

WORD DESCRIPTIO~

WDl

Error Code

WD2

Error Number (as follows)
l=overflow from rounding
2=exponent overflow
3=underflow from normalization
4=floating abnormal divide
2S=inte~er:division

by zero

Error 4 - Expected JEA break but none occurred.
WORD NO.

WORD DESCRIPTION

WDl

Error Code

WD2

Error Number (as follows)
ll=overflow from rounding
12=exponent overflow
13=underflow from normalization
14=exponent underflow
15=floating abnormal division
30=integer overflow
35=integer division by zero

Error 5 - Load/Store Failure
WORD NO.
WDl

WORD DESCRIPTION
Error Code

Error 6 - Unexpected BRANCH occurred
WORD NO.

~V'ORD

DESCRIPTION

WDl

Error Code

WD2

Failing BRANCH lOT

Error 7 - No BRANCH occurred when expected
ERROR NO.

WORD DESCRIPTION

WDl

Error Code

WD2

Failing BRANCH lOT

,Error 10 - 17 Diagnostic aid registers
ERROR NO.

WORD DESCRIPTION

WDl

Ratio-of operations

WD2

Function

WD3

FMB H

before

WD4

FMB L

before

WD5

EPA

before

WD6

FMA H

before

WD6

FMA L

before

W08

EPA

before

WDl

FMA H

~DRR)

WD2

FMA L

(ORR)

WD3

EPA

(ORR)

WD4

FHA H

stored

WD5

FMA L

stored

WD6

EPA

stored

.....
WDl

FMA H

calculated

WD2

FMA L

calculated

WD3

EPA

calculated

LINE FREQUENCY CLOCK EXERCISER MODULE
GENERAL DESCRIPTION
This module uses the line frequency clock option to print
the time every minute.

It is available in a 6, and 5, cycle

version (TIME & TIMES).

The time is printed via the monitor

error reporting function.

Console switch 8 halts operation of

the TIME & TIMES module.
OPERATION
Location 7 is initialized to a number which will produce
a clock flag every second.

Every minute the monitor error

reporter is signaled to print the time as six octal digits.
'l'he first two digits are for the hours (,-27) and the last
two digits are for the minutes (,-73).
ERROR
The only error from the clock is an API entry with no
clock flag.

This will be indicated by a time of 777777.

HIGH SPEED READER EXERCISER MODULE
DESCRIPTION
The "Random Number Reader Test" is run using a Tape Punched via
the "Random Number Punch Test".
and random stall intervals.

The Tape is read at both full speed

Every other column is read using either

the lOT RSA or RSB.
PROGRAM ACTION
The punched tape should be placed in the Reader and it must be
ready to read when the "System Exerciser" is started.

The tape is read

first at full speed and then at random stall and full speed intervals.
The stall can be eliminated by setting bit 17 of UODSW+l with Parameter
Mode.

This will cuase the tape to be read as fast as possible.

After

completing the read test, the same tape or another tape can then be
reloaded into the Reader to be verified.

When the tape is reloaded the

no tape flag is cleared and a delay is started.

Approximately 10 seconds

after the no tape flag was cleared, the Read Test will restart.

This

delay is present every time the tape is reloaded and is a stand alone
figure.
When a read error is encountered, the error message is typed out
and a stall is set up allowing the operator to remove th ...' tape and
examine it to verify as to whether the error was a Read or a Punch Error.
He also has the option of ignoring the error and after a delay of
approximately 2 minutes the test will resume verifying the tape.

After

an error typeout, AC SW13 may be set to a "1" causing an indefinite
hold until either the tape is removed or the switch is reset to "0"
allowing the test to resume.

If the tape is removed from the Reader,

the no tape flag is set and the error code for no tape is typed.
67

out.

The tape must then be reloaded at the beginning of the tape

and after a delay the test will restart automatically.

NO TAPE ERROR
Any time a no tape condition is encountered, an'error code of
~~~~~l

will be typed out.

To recover from a no tape condition, the

test tape must be reloaded and the test will restart automatically.

AC SWITCHES
AC SW13 (/I)

NORMAL READ OPERATION

AC SW13 (1)

INHIBIT READER TEST

AC SW13 MAY BE SET TO INHIBIT THE READER AT ANY TIME DURING
THE TEST.
ERRORS
--,Four (4) possible errors maybe detected by the Reader Test.

ERROR CODE

DESCRIPTION

flflflflfll

No tape flag

flflJlflfl2

RSF skipped with IORS reader Bit clear

JlflJlflfl3

Illegal API Interrupt. API
interrupted with the Reader Flag clear.

4,)

flflJlflf:14

Read Data Error.

Example:
TEST

ERROR CODE

COLUMNS READ

RDRTST

READ MODE

GOOD

BAD

3716

371

COLUMNS READ will be equal to the number of columns read in octal.
READ MODE will be equal to either the rOT 716161164 (RSA) or 7Jl16l44

(RSB).

HIGH SPEED PUNCH EXERCISER MODULE

DESCRIPTION
'l'he "Random Number Punch Test" will punch a tape which can
be verified using the "Random Number Reader Test".

The tape is

punched at both full speed and random stall intervals.

Every

other column is punched using either the lOT PSA or PSB.
PROGRAM ACTION
The program starts off by punching blank leader and then at full
speed and random stall intervals.

The random stall intervals can be

eliminated by setting bit 17 of UODSW+l with Parameter mode.

The

punch test will punch random numbers complimenting the punch mode
(PSA, PSB) for every other random number.

After punching a specified

number of columns, blank leader is punched and the test will start over.
'l'he punched tape may be torn off any place in the blank leader to be
used as a test tape for the "Random Number Reader Test".

AC SWITCHES
AC SW14 (_)

NORMAL PUNCH OPERATION

AC SW14 (1)

INHIBIT PUNCH TEST

NOTE:

AC SW14 MAY BE SET TO INHIBIT THE PUNCH TEST AT
••NY

TIME DURING THE TEST.

ERRORS
Two (2) possible errors may be detected by the Punch test.
ERROR CODE
1)

___

DESCRIPTION

~_l

No tape flag set.

~_2

PSF skipped with laRS bit clear.

,NO TAPE ERROR
Anytime a not tape condition is encountered, an error code of
'~

__PP1' will be typed out.

To recover from a 'no tape'

condition, the test must be restarted.

LPIS C&F

LINE PRINTER SYSTEMS EXERCISER MODULE

The LPIS Exerciser Module drives the Printer Control Electronics and
Line Printer within the Systems Exerciser environment using 5 different
patterns.

Print control errors are monitored and reported if they occur

but, since no feedback is provided for detection of data transmission
errors, these must be detected visually.

The patterns printed have

been choosen so that this may be easily done.
The five patterns which are printed are:
1.

Double wedge pattern consisting of a set of alternating
left and right hand wedges.

Standard rotating pattern using all characters.

Alternating E's and space characters printed in the lOPS
ASCII Mode.

And a high-speed printer test using characters spaced "4ms"
apart on the print character drum.

The sequence of patterns is repeated 8 times at which point a

LPlS

done statement is issued.
In the event of detection of a controller error, an error 2 is indicated
together with the contents of the printer status register.

An Error 1

indication is produced if an API entry error is detected and the test
is terminated.

Parameter mode operation is not available in operation

with this module.
operation.
printed.

Console SWll is used to temporarily stop printer

If the printer runs out of paper, an Error 1 will be

Automatic restart will take place approximately one minute

after reloading the paper if no other tests are running.
will increase as the amount of other tests increase.

The time

ERROR CODES

ERROR NO.

DESCRIPTION

API Error - API entry with no line printer flag.

Printer Error
WDI Error Code
WD2 Error Status Word from Printer
BIT NO.

DESCRIPTION

Error flag

Line Printer Alarm

Line Overflow Error

Illegal Horizontal Tab.

Busy

Job Done Flag.

LTl5/LTl9 EXERCISER MODULE
DESCRIPTIOO
'lbe

tp..-St is desigrm to exercise the transmitter, receiver and teleprinter

LTlS/19

for the
LT19

LTlS

r:md the

LT19.

'!he prcqram will exercise both the

silrultan€.awly in configurations of

LTlS

and the

teletypes.

PKX:;RAM ACl'IOO

'1l1e test starts off by initializing all available teletypes with a
line feed

carriage return-

and then types out a . repeating pattern of characters

simult~neously

on all teletypes.

After typir¥J a pre-determired nurrber of lines a "floating teletype"

test is then nm.

In this test one (1) teletype is left

silent while all

renaining teletypes continue typing out the character set.

After carpleting

approximately ten (lll) lines of character sets I the

teletype is re-started,

silent

continuing on fran the last character typed, and another teletype is left
Any character may be typed in on the

silent

silent.

teletype and it will resporrl via

echoing back the typed character thus testing the rereiver section of that teletype.
HOLD IDDE
A provision is also mad.e to hold

any

selected

teletype in an 'Echo' node.

is done via typing a 'Cntr A', on any 'silent' teletype.
mode.

'!he number of the

selected

'Ibis

'!his will enable the

hold

teletype (1-16) shCllld then be typed follc:wed by a

carriage re turn. The selected teletype will then go into an 'Echo' IOOde.

'IYPing a

second 'CN.l'R A' will release the selected teletype and the program will reS\.ll"OO :no.nnal
cperation.

In the 'Hold' nr:xle, all illegal characters are echoed back as

'?' and

ignored.

'IYPing' Rubout' will enable any preceedin:] nunber to be deleted.

If a

nurriJer of non-existant teletype is typed, the program will autanatically shift back to
nonnal cperation.
USER SWI'lCHES
The number in UODSW+3 determines the number of operations done before a
done statement.

This is set for 12 minutes with two teletypes and will

vary inversely with the number of teletypes.

DATA SW4

(1)

Inhibits the

LT15/19

test.

EROORS

Only (1) possible error is detected by the

II..I.l'.GAL API

nmmRUPl' •

LT15/19

API

test.

interxupted with no

LT15/19

flags set.

DC~I-EB

FOR SYSTEM EXERCISER

DESCRIPTION
The

DC~I-LB

receiver for the

test is designed to exercise the transmitter and
DC~I-EB

teletype scanner.

The program will

exercise from 1 to 4 DC~I-EB'S simultaneously in configurations
of 1 to 32 teletypes.
PROGRAM ACTION
The test starts off by initializing all available teletypes
with a carriage return-line feed and then types out a repeating
pattern of characters simultaneously on all teletypes.

All transmitted

characters are checked for validity before the next character is
transmitted.

After typing a pre-determined number of lines a

"floating teletype" test is then run.

In this test one (1) teletype

on each DC~I-EB unit is left silent while all remaining teletypes
continue typing out the character set.
ten

(l~)

After completing approximately

lines of character sets, the silent teletype is re-started

continuing on from the last character typed, and another teletype is
left silent.

Any character may be typed in on the silent teletype and

it will respond via echoing back the typed character thus testing the
receiver section of that teletype.
HOLD MODE
A provision is also made to hold any selected teletype in an "Echo"
mode indefinitely.
teletype.
teletype

This will enable the hold mode.
(~-7)

The number of the desired

to be selected should then be typed in followed by a

carriage return.
mode.

This is done via typing a 'CNTR A' on any 'silent'

The selected teletype will then go into an echo hold

Another teletype may be selected by this same procedure or the

echo mode may be released by typing a second lCNTR A' followed by a
76

carriage return and the program will resume normal operation.

In the

echo hold mode, all illegal characters are echoed back as '?' and
ignored.

Typing 'Rubout' will enable any preceeding number to be

deleted.
PARAMETER MODE
The scanner API trap addresses may be changed with Parameter mode.
DATA SWITCHES
Data SW4 (1) holds the

DC~l-EB

test.

ERRORS
Two (2) possible errors may be detected by the
ERROR CODE

Test.

DESCRIPTION

f1f1~f1~1

Data transfer error

f1f1~f1f12

Illegal API interrupt.
all

EXAMPLE

DC~I-EB

API interrupt with

flags cleared.

(ERROR 1):

TEST

ERROR CODE

UNIT & TTY

TRAN 's DN.['A

REC'D DATA

DC~IEB

~f1f1f1f1l

1~7f1f1f1

~~f13f11

~f1~2~1

WHERE:

UNIT will be equal to scanner units '1-4'.
TTY will be equal to teletypes

'f1-7'.

VTIS EXERCISER MODULE

GENERAL DESCRIPTION

This module tests for proper operation of the X and Y coordinate
registers, in the VT15, by plotting all combinations of character
input, basic vector, short vector,

point and graph plot modes.

II. OPERATION

POINT PLOT MODE
With the Y eoo~dinate register cleared, all combinations of
X points from g to 1777 are plotted and the results checked.
The test is then repeated with the X coordinate register
cleared and all Y points plotted.

SHORT VECTOR MODE
All combinations of length and direction are plotted,
originating from the center of the display area,and the
results checked.

GRAPH PLOT MODE
The X and Y registers are set to 1 and then 1776 graph plot
X direction points are plotted.
graph plot in the Y direction.

The same is then repeated with
~

check is made to insure

that with one coordinate input the other coordinate will count
automatically.
D.

BASIC VECTOR MODE
Each of the eight directions are plotted with all values of
vector length from ~ to 1777.
Directions

and 1 begin at X=~,

Directions 2 and 3 begin

Y=~

at X=1777,

Y=~

Directions 4 and 5 begin at X=1777, Y=1777
Directions 6 and 7 begi~ at X=J, Y=1777
78

CHARACTER INPUT MODE

Each of the characters available from the character generator
are drawn from an originating point of X and Y equal to
19~~.

The results of the X and Y coordinate registers after

each character is executed should be as follows:
CHARACTER

. ,X

All displayable characters

1~52

l~~~

Line Feed

l~~~

712

Tab

121111

l~~~

Carriage return

ERROR NO.

ERROR DESCRIPTION

ERROR FORMAT NO.

Display flag interrupt no caused
by STOP FLAG

Point plot error

Short vector error

Graph plot error

Basic vector error

Character input error

API entry but no display flag

ERROR FORMATS

FORMAT DESCRIPTION

LRROR FORMAT NO.
1

WOl
WD2
WD3
WD4
WDS
WD6
WD7

Error number
Status 1
Status 2
Status 3
Display PC
X position
Y position

WDI
WD2
WD3
WD4
WDS

Error number
Good X
Good Y
Actual X
Actual Y

WDI
WD2
WD3
WD4
WDS
WD6

Error number
Good X
Good Y
Actual X
Actual Y
vector Direction

VPlSAEXERCISER MODULE

DESCRIPTION
This program is designed to exercise the 'VP15A' storage tube
display system. The program consists of seven (7) separate
display patterns all of which utilize only the 'Store Mode' of
the VP15A.
PROGRAM ACTION
Upon completion of all seven (7) patterns the statement "VP15A DONE"
is typed and the pattern sequence is repeated. The pattern sequence
is as follows:
1)

Displays a 'Box' with 'Bisectors' and 'Diagonals'.
a.

Displays a 3" circle in the center of the screen.
a.

quadrant 'Complimented' circle inside the original

This pattern is retraced 64
is erased upon completion.

This pattern is retraced

This pattern is retraced 64
is erased upon completion.

Displays a
a.

times and then continues.

times and the storage tube

times and then

continues.

Displays a 6" quadrant 'Complimented' circle inside the original
6" circle.
a.

Displays a 6" circle in the center of the screen.
a.

This pattern is retraced

Displays a 3"
3" circle.
a.

The pattern is retraced 29 (decimal) times and then storage
tube is erased upon completion.

full

screen

'Diamond' with 'Bisectors'.

This pattern is displayed 40
is erased upon completion.

Display random numbers.

times and the storage tube

times and nhe

storage tube

Either 262,144 or the number in UODSW+l.

The screen should be almost entirely intensified on completion
of this exercise.

The storage tube is erased after plating all points and
then the patterns are repeated.
82

DATA SWITCHES
SW1~
SW1~

DATA
DATA

(9)

(1)

Normal VP1SA operation
Inhibits the VP1SA test.

ERRORS
Only (1) possible error is detected by the

VPlSA

test.

ERROR CODES
1)

~~~99l

Illegal API interrupt.
VP15A flags set.

API

interrupted" with no

AD15 EXERCISER MODULE

DESCRIPTION
Tne AD15 test is designed to exercise the logic of the ADIS analog
to digital converter. All three modes of the converter are exercised
via taking conversions under program, sequential and random operation.
Program Action
The test is started by taking a conversion under program control. A
cneck is then made for the correct channel address in the ADIS status
buffer and that no illegal word count or memory overflow flags exist.
A series of 127 conversions are then taken via sequential operation. The
data buffer is examined to confirm that a data transfer actually took
place and that only the selected storage area was modified.
Random
mode is then exercised by taking a series of 81 conversions on 9 se10cted
channels~ The 'add to memory' mode and 'memory overflow' flags are then
msted via taking another series of 5 conversions under random mode. A
noise test is then run where a series of IJ. conversions are taken on
channel 1 and the results are stored in a data buffer. Each value is t.ilen
compared to be within + or - 5 counts of each other. Refer to
'Restrictions' before running the test.
*NOTE: A minimum configuration for 4 channels is all that is needed to
run the ADlS System Exerciser.
RESTRICTIONS
A prerequisite for running the noise test is that a fixed voltage not
to exceed + or - l ' volts must be jumpered to input of channel 1 --(pin E14-Cl). This can easily be done via placing a jumper from the
AD15 +5 volt supply (pin AII-A2) to the input (pin E14-Cl) of channell.
USER SWITCHES
No parameter mode operation is available for the ADIS test.
DATA SWITCHES
DATA
DATA

SW5
SW5

(J)

(1)

Normal AD15 operation.
Inhibits the AD15 test.

ERRORS
Nine (9) possible errors may be detected by the AD15 System Exerciser test.

ERROR CODES
1)
2)
3)
4)
5)

/1/1/1/1/11
/1/1/1/1/12
/111/1/1113
/lII/lJI/l4
/I/III/I/IS

6)
7)
1/1)

/1/1/1/1/16
1111/1/1117
/lJI/I/llJl

11)

JcJ~Jfl/1ll

Illegal 'Word Count' flag occurred.
Illegal 'Memory overflow' flag occurred.
Wrong channel address in 'ADlS' status register.
Contents of ·W.C.-26 not equal to II after W.C. flag.
Contents of ~ata buffer unchanged after sequential
conversion
Illegal data transfer to data buffer.
Data error, conversion values out of spec in 'Noise' test.
Illegal API error.
API interrupted with no AD15 flags
set.
'Add to Memory' failed.

EXAMPLE PRINTOUT for ERRORS il-6 and error ill where:

TEST

ERROR CODE

ADlS STATUS

CHANNEL

W.C.i24

W.C. #26

AD15

XXXXXX

xxx xxx

XXXXXX

xxx xxx

EXAMPLE PRINTOUT for ERROR #7 where:

TEST

ERROR CODE

AD15

/I/lJI/lJl7

1st CONVERSION VALUE

TEST

ERROR CODE

AD15

'/I/lJll~

xxx XXX

XXXXXX

EXAMPLE PRINTOUT of ERROR # 1/1

2nd CONVERSION VALUE

where:

AD15 STATUS REGISTER
XXXXXX

CR@3B EXERCISER MODULE
GENERAL DESCRIPTION
The purpose of this module is to run the card reader using multiples
of card decks (MAINDEC-89-D2A2-C)

as the input.

and errors are reported via the monitor.

Data checking is done

The program also checks that

the HOPPER EMPTY function occurs at the correct card count.

Console

switch 8 issued to halt card reader operation.
OPERATION
Load multiples of card decks into the feed hopper, press motor
start and read start buttons on the card reader.
should be out.

Then using parameter mode insert

80 cards in UODSW+2.

Zero equals one card deck.

All red lights
t~e

multiples of

If a missed data

condition is expected because of system loading, and data checking
is unimportant, set bit 17 of UODSW+l.
system.

Then start the operating

When all the cards have read hopper empty will be checked

and a done statement printed.
and press motor start.

Reload the cards into the feed hopper

When read start is pressed, the cards will

start feeding through the reader.
**********************************************************************************

THE CR~3 REQUIRES A HIGH RATE OF INTERRUPT SERVICE.

BECAUSE OF SYSTEM LOADING,

THE C~3 WILL MISS DATA.
**********************************************************************************

ERRORS

ERROR NO.

ERROR DESCRIPTION

ERROR FORMAT NO.

API entry with no CR~3B flag

Card Reader not reader on initialization

No column ready on CR~3B flag and
no error flag

Error flag but no cause

Incorrect data

Hopper empty too early

No pass

No hopper empty after a multiple of
80 cards

Bad data flag from CR~3B

10
11

ERROR FORMAT DESCRIPTIONS

ERROR FORMAT NeMER
1

FORMAT DESCRIPTION

WDl

Error number

WD2

CR~3B

WDI

Error number

WD2

Status Register

WD3

Good data

WD4

Bad data

Status Register

XY1S EXERCISER MODULE
GENERAL DESCRIPTION
'Ithe XY1S module can be used to plot on the 12" or 31" plotters
with either 10 mil or 5 mil increments.

The default assumption is

the 12", 10 mil plotter.

This can be changed with Parameter mode.

Two figures are plotted.

The first is concentric squares with

bisectors and the second is concentric 8 sided polygons with bisectors
joining directly

opposite angles.

These figures can be overlayed

and repeated 10 (decimal) times for repeatability tests and extended
runs with minimum paper usage.

Repeatability is not quarenteed.

Switch 17 halts operation of XY1S test.
OPERATION
Turn the plotter on, turn the chart drive on and start the System
Exerciser.

The plotter will run into the stops and will remember

where it is from then on.
ERRORS
There is only one error checked and that is the Plotter flag did
not clear after a clear flag command.
PARAMETER MODE OPTIONS
UODSW+l

Bit 17=1 for 5 mil plotter
Bit 16=1 for 31" plotter

UODSW+2

Bit 17=1 for overlay patterns

BOIS EXERCISER MODULE
GENERAL DESCRIPTION
The BD15 module was changed from the original BOIS control
test (MAINDEC-lS-08FA) to run under the System Exerciser format.
The majority of the tests were kept or modified only by the
elimination of timing loops, scope loops, Rnd CAF's.

Switcil 14

is used to halt operation of the BOIS control test.
OPERATION
Remove the UOC and AFC cables from the BOIS controller.
the BOIS program.

Load

If the AFC is not present, use Parameter mode to

indicate the absence of the A/O to the program.

Each subtest is

repeated 20 (octal) times with the entire test cycled through 140
(octal) times before a done statement.

If there is no A/D then

each subtest is repeated 400 (octal) times.
PARAMETER MODE
UODSW+l is used to indicate the absence of the A/D.
then UDC only is present.

If bit

~=l,

The default assumption is that both

UDC and AFC are present.
ERROR FORMATS
Error typeouts (except for error ~) will follow this format for
a BOIS with both UDC and AFC,
'V-ffi 1
WD2
WD3
WD4
WOS
WD6
WD7
WD8

Error Number
Status Register
Auto~Sc::an Address Register
COS gates
UDC Output Register
UDC Data Register
Fe Address Register
FC Data Register

If only the UDC is present, the error typeouts will be only words
one to six.
Error ~ is for an API entry with no BD1S flag present.
WD2 will be the API status register.
90

WDI will be ~,

ERROR NO.

ERROR DESCRIPTION

USNB failed after MOM

USI skipped after MCM

USD skipped after MCM

MCM not setting UDC mode

IMM flag set in status register after MCM

DEF flag set in status register after MCM

Busy flag set in status register after MCM

Deferred address fault set after MCM

Immediate address fault set after MCM

A-D done set in status register after MCM

P-flop set after MCM

Sample flop set after MCM

FCMOD did not set bit

MCM did not clear mode flop.

UMOD not clearing mode flop.

MCM did not clear mode flop

MLS did not set mode flop

MLS did not clear mode flop

IMM did not set with MLS

,24

USI did not skip on IMM flag

USD skipped and should not have

IMM status bit not cleared by MCM

USI skipped and IMM flag clear

USD skipped and should not have

DEF flag did not set with MRS

USD did not skip

USI skipped and should not have

DEF flag did not clear with MCM

of status register

ERROR NO

EPROR DESCRIPTION

USD skipped on cleared flag

USI

MAINT flop not clear after MCM

MAINT flop not set with MSM

MAINT flop not clearing with MCM

USI skipped with I InuIt

disabled

USD skipped with 0 InuIt

disabled

URA did not clear IMM and DEF flags

URAA did not clear IMM and DEF flags

RIF generated with MAINT equal to 1

IMM and/or DEF set with maint equal to a 1

IMM and/or DEF set with DEF EN set

DEF flag did not set or IMM set.

DEF flag did not clear

RIF did not clear DEF

IMM or DEF set with maint on a 1

IMM or DEF flag set with IMM EN set

IMM flag did not set or DEF flag set

RIF did not clear IMM flag

DEF enable or IMM enable not cleared by MCM

IMM or DEF flag did not set

RIF did not clear DEF or IMM flag

A-D done did not set

FCSD failed

A-D done did not clear with FCRB

skipped on cleared flag

ERROR NO.

ERROR DESCRIPTION

MCM did not clear A-D done

A-O done or PCSO failed

MCM fail to clear A-O done

FCEI failed

FCDI failed

FCEN failed to set

FCEN failed to clear

MCM did not clear P flop

100

P flop did not set with status

101

MCM did not clear P flop

102

FCMOD cleared P flop

103

No A-D done in 100 microseconds

104

A-D done did not clear P flop

105

MCM did not clear sample flop

106

Sample flop won't set

107

MCM did not clear sample flop

110

FCSD failed after API or PI break

III

FCSD failed after FCCV

112

Cannot clear FC address bits

113

Cannot set all FC address bits

114

Cannot clear FC address bits

115

FC address did not load correctly

116

UDC load address generates FC load address

117

MCM did not clear busy

ERROR NO.

ERROR DESCRIPTION

120

Cannot set busy flop

121

MCM did not clear busy

122

USNB failed

123

USNB failed

124

X fault not cleared with MCM

125

X fault not set

126

USNB failed

127

MCM did not clear X fault

130

Busy won't set

131

MCM did not clear X fault

132

Cannot set X fault

133

D fault did not generate reset busy

134

MCM did not clear X fault

135

UDC address register not clear

136

UDC address register will not set to all ones

137

UDC address register will not clear

140

52 pattern will not load

141

25 pattern will not load

142

ULA not disabled in FCMOD

143

UDC address register not clear

144

D fault did not set generic code bit 3

145

UDC address register not clear

146

A fault did not set generic code bit 3

147

UDC address register did not load correctly

ERROR NO.

ERROR DESCRIPTION

150

DEF X not counting correctly

151

X did not go to 0 or gen f~ult not generated

152

D fault not generated

153

UDC def address did not count (Y)

154

WD bits of def address did not count

155

IMM did not clear DEF address

156

Start scan did not set busy

157

IMM address did not clear

160

IMM address did not clock

161

IMM address did not jam into DEF address

162

IMM X not counting correctly

163

IMM did not transfer to DEF correctly

164

IMM flag did not inhibit start scan

165

IMM flag did not inhibit start scan

166

Start scan did not clear IMM add

167

Fault set IMM address = 7

170

A fault did not set

171

IMM flag did not inhibit USCAN

172

Start scan did not clear fault

173

IMM Y not counting cor~ectly

174

IMM did not jam to DEFF correctly

175

IMM,WD not counting correctly

176

IMM did not jam to DEFF correctly

177

GEN code for fault not GEN

ERROR DESCRIPTION

ERROR NO.
200

DEF adr fault did not set

201

GEN code for

202

GEN code incorrect

203

Scan started and USNB failed

294

DEF adr fault did not set

205

Scan started and timed out

206

IMM adr fault did not set

207

Data in picking up bits

210

Data in picking up bits

211

COS gates no.t disabled by open bus

212

COS gates noi: disabled by open bus

213

Bits

214

Bits 1 & 9 not selected by FC ADR decode

215

Bits 2 & 1/1 not selected by

Fe ADR decode

216

Bits 3 & 11 not selected by

Fe ADR decode

217

Bits 4 & 12 not selected by

Fe ADR decode

220

Bits 5 & 13 not selected by

Fe ADR decode

221

Bits 6 & 14 not selected by Fe ADR deoode

222

Bits 7 & 15 not selected by Fe ADR decode

223

Maint not disabling FC ADR

fault not GEN

& 8 not selected by FC ADR decode

ERROR NO.

ERROR DESCRIPTION

224

Bits ~ & 8

232

Bits 1 & 9

240

Bits 2 & 10

246

Bit/:; 3 fi, 11

254

Bits 4 & 12

262

Bits 5 & 13

270

Bits 6 & 14

276

Bits 7 & 15

.225

o&8

233

1 & 9

241

2 & 10

247

3 & 11

255

4 & 12

263

5 & 13

271

6 & 14

277

7 & 15

2i16

o&8

234

1 & 9

242

2 & 10

250

3 & 11

256

4 & 12

264

5 & 13

272

6 & 16

300

7 & 15

DB error or COS gate error

DB error or POP

P close

~ ~

allowed COS

did nGt disable COS gates

ERROR NO.

ERROR DESCRIPTION

227

235

1 & 9

243

2 & 10

251

3 & 11

257

4 & 12

265

5 & 13

273

6 & 14

301

7 & 15

l230

0 &8

236

1 &9

244

2 & 10

252

.3 & 11

260

4 & 12

266

5 & 13

274

6 & 14

302

7 & 15

231

o &8

237

1 &9

245

2 & 10

253

3 & 11

261

4 & 12

267

5 & 13

275

6 & 14

303

7 & 15

open

o did not disable COS gate

DB error or COS gate error

TITLEt
AUTHORt

Stanley M. Rose

COMPANY,

Laboratory of Computer Science
Massachusetts General Hospital
Boston, Massachusetts

DATE:

June 27, 1971

DESCRIPTION
The RB~9 test is designed to run as part of the PDP-9/l5 system diagnostic.
The program will completely test either the operational sectors of the disk at
64, 128, 256, and 5l2.lenqth write/reads, or will test the maintenance sectors
of the disk.

The test uses the EAE, but saves and restores the MQ and STEP COUNTER

so as not to interfere with EAEPTI or EAEPT2.
PROGRAM ACTION
The test starts by writinq every seventh block (64 word lenqth) until the
complete disk is written.

Every seventh block is then read and verified until

the complete disk is read.
Next, every sixth block is written usinq 128 lenqth writes and then every
sixth block is read and verified.
This is repeated using 12 block increments and 256 word transfer lenqth, and
24 block increments and 512 word lenqths.

This conp~ises one pass.

MAINTENANCE MODE
If bit 2 of the UODSW is set, then the maintenance sectors (sector 80) are
the only sectors used.

The word length is fixed at 64 in this case.

PARAMETER MODE
The following parameters of the diagnostic can be changed.
A) UODSW
1) Bit 2 set indicates use maintenance section.
2) Bit 3 set fixes the word lenqth at 64 word taansfers, and causes 6 write/
read passes over the disk to constitute a complete pass.
3) Bits 12-17 are the API channel (assumed to be ~7, address 47).

100

B) UOOSW+l
This is the maximum number of retries on hardware errors, assumed to be
2.

After retryinq the specified number of times, a new block is chosen.

the error occurs durinq writinq, this will cause read/compare errors.
C) UODsw+2

The maximum number of compare errors per blocK (assumed 5) before the
block -~s reread and reverified.
D) UODSW+3
The maximum number of times a blocK is reread and reverified when compare
errors are found.
DATA SWITCH
SWitch 15 causes the test to hold.

1) Hardware error.

Leqi timate BCD address.

Status Reqister
Disk Side (~ or 1)
Track Address (in octal)
Sector Address (in octal)
2) Hardware error.

Illeqal BCD address.

Status reqister
Address loaded
3) More type 1 or 2 errors than specified by [USERSW+l]
Will not re-try this block.
4) Compare error
DiSK side
Track address (octal)
Sector address (octal)
Core address
Offset
Expected
Received

101

5) More errors/block than specified by [USERSlf+Y
Will re-read and try aqain.
6) Retried as many times as specified by !?SERSW+3]
Will go on to next block.
7) Illegal APl entry.

No flag se,t.

Status register
IORS
8) After errors 7,

or 11 the program should reinitialize and restart.

However, it reentered illegally.
status register
IORS
9) Interrupt entry after clearing status register and starting no new IO
operation.
Status register
IORS

102