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DEC-15-ODAPA-A-D

May 1974

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Document:	DOS-15 Assembly Parameters
Order Number:	DEC-15-ODAPA-A-D
Revision:
Pages:	23
Original Filename:	http://bitsavers.org/pdf/dec/pdp15/DEC-15-ODAPA-A-D.pdf

OCR Text

DEC-lS-ODAPA-A-D

DOS-15 ASSEMBLY PARAMETERS

First Printing August, 1974

The information in this document is subject to change without notice
and should not be construed as a commitment by Digital Equipment
Corporation. Digital Equipment Corporation assumes no responsibility
for any errors that may appear in this manual.
The software described in this document is furnished to -the purchaser
under a license for use on a single computer system and can be copied
(with inclusion of DIGITAL's copyright notice) only for use in such
system, except as may otherwise be provided in writing by DIGITAL.
Digital Equipment Corporation assumes no responsibility for the use
or reliability of its software on equipment that is not supplied by
DIGITAL.

@ 1974, Digital Equipment Corporation

The HOW TO OBTAIN SOFTWARE INFORMATION page, located at 1:he back of
this document, explains the various services available to DIGITAL
software users.
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document requests the user's critical evaluation to assist us in
preparing future documentation.

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TABLE OF CONTENTS

INTRODUCTION

TABLE 1:

Sources Assembled Under MACRO-IS

TABLE 2:

Sources Assembled Under MACRO-II

TABLE 3:

Hiscellaneous Sources

EXPLANATORY NOTES

iii

PREFACE
This document describes the source file components which make up the
version 3 PDP-IS Disk Operating System, DOS-IS V3A, and explains the
steps which must be taken to assemble a binary from the source and
to incorporate it into an existing DOS-15 V3A system.
To follow the steps outlined in this document the reader should be
familiar with the following utility programs:
As Described in Manual

Program

DEC-lS-ODU~~-B-D

DOSSAV

DOS User's Manual,

MACRO-IS

MACRO 15 Assembler Programmer I 51 Reference
Manual, DEC-lS-LMACA-B-D

MACRO-II

MACII Assembler Programmer's Reference
Manual, DEC-lS-LMCMA-A-D

PATCH

PATCH Utility Program, DEC-IS-lJPATA-A-D

PIP

PIP DOS Monitor utility Progrrun,
DEC-lS-UPIPA-A-D

SGEN

SGEN-DOS Utility Program, DEC-1S-USGNA-A-D

UPDATE

utility Program, DEC-lS--YWZB-DN7

INTRODUCTION
Source files for DOS-IS V3A are available on DECtapes or 7 or 9
track magtape.

The steps required for each source are listed either

in Table 1, Table 2, or Table 3.
The first step of assembling, in some cases, is to rename the file
prior to assembly.

This is not a necessity but in this document it

simplifies the explanation of command strings required to install
the assembled binaries.

However, the user can perform the renaming

process after assembly or, when making binary input to the PATCH
utility program, forego renaming altogether.
The second step is to assemble the source using the proper assembler.
Most of the sources are assembled using the MACRO-IS assembler (Table 1).
A few are assembled using MACRO-II (Table 2).

Some are to remain as

source files and others are to be compiled by FORTRAN (Table 3) •
There are two programs which cannot be assembled by the user under
DOS-IS:

they are the sources which make up the PDP-II code for the

MACRO-II assembler and the source for the ABSLll paper tape loader.
This is explained in the notes.
Some source files are conditionally coded to produce several different
binaries based either on the existence or nonexistence of

d~finitions

for given symbols or on their defined values.
The type of binary produced by the assemblers will vary.

For

MACRO-IS output in Table 1 there is a column which shows either BIN
(relocatable binary), ABS (absolute binary) or HRM (hardware readin
mode).

BIN and ABS files can be produced on a directoried device

such as disk.

HRM files must be assembled directly onto paper tape.

It is standard practice with MACRO-IS BIN files to shorten them
by using the UPDATE utility program with the S option.
In Table 2, output from the MACll assembler is listed as OBJ which
means OBJECT BOOULE.
by a linker.

Object modules are converted to load modules

Load modules and object modules are provided as

absolute binary code on paper tape.

Table 1
Sources Assembled Under MACRO-IS

Rename It
To

Source File
Name

Desired
Version

ABSL11

~14

CD. DOS

~31

COB.

~131

CRI3B*/¢29**

COB.

131

COB.

Assembly
Parameters

Type of
Binary

Footnote

HRM

BIN

CF¢3B/y126

DEC¢26=¢

BIN

}131

CR15/,¢29

CR15=j1'

BIN

COB.

,031

CRl5/.026

BIN

COB.

131

CR,¢lE/CR¢2B
¢29

CRl5=,¢'
DEC.026=.tf
NOTGDI=¢

BIN

COB.

,031

CR¢lE/cR¢2B
9126

NOTGDI=¢'
DEC\1'26=,0

BIN

COB.

,0'31

CR11/¢29
Spoo1ed***

UCl5=ft

BIN

COB.

.¢31

CRl1/P'26
Spooled***

UC15=¢
DEC¢26=J6

BIN

COB.

Ji31

CRll/,029
Unspoo1ed***

UC15=~

BIN

CR111,li"26
Unspoo1ed***

UC15=.i
DEC¢'26=»
NOSPL=I

BIN

COB.

¢31

NOSPL=j6

CHAIN

154

ABS

CREF

rj2rj

ABS

DDT

~12

PAGE MODE

BIN

DOS BCD

li"~5

BANK MODE
All Versions

PDP9=1
BCDSTA=xxxxx
BCDADR=yyyyy

BIN

ABS

6,12

BCDB.

~~5

CR~3B*/~29**

BCDB.

fd~S

CR,03B/,026

DEC¢26=¢

ABS

6,12

BCDB.

.eftS

CR~lE/CR,02B

NOTGDI=¢

ABS

6,12

NOTGDI=.0
DECP26=¢

ABS

6,12

BIN

NO UC15

BIN

UC15=P'

BIN

,029
BCDB.

k1f/S

CR01E/C~2B
~26

DTA.

,0'23

OOSNRM

~74

DOS15

~74

HAVE UC15

*Type of controller.
**Type of card code.
***Spoo1ed and unspoo1ed refer to how the device is handled when t:he UNICHANNEL-1S
spooler is turned on.

Table 1 (Cont.)
Sources Assembled Under MACRO-IS
Source File
Name

Rename It
To

Desired
Version

OOSPIP

1.03

PIP

1j13

DOSRFA

14.0

DKA.

14.0

DKA.

OKB.

14.0

DKC.

Assembly
Parameters

Type of
Binary

Footnote

BIN

DKB.

%BVERS=¢

BIN

14.0

DKC.

%CVERS =,R1

BIN

DKL.

14.0

OKL.

%LVE RS =.0

ABS

RKA.

14.0

RKA.

%RK~5=i

BIN

14.0

RKB.

%RK.¢ 5=st

BIN

ABS

RKB.

%RP~2=;6

%RP,02=0
%BVERS=¢
RKC.

14.0

%RK,05=}1f

RKC.

%RP;12 =,.0
%CVERS=..t1
RKL.

14.0

%RK,05 =,0'

RKL.

%RPf!2=%
%LVE RS=,0
DPA.

14.0

DPA.

%RP.02 =,%

BIN

OPB.

14.0

OPB.

%RP,.0'2=.0'

BIN

lWS

HRM

BIN

%BVERS=.0
DPC.

14.0

%RPJi2=%

DPC.

%CVE RS =)5
OPL.

14.0

DPL.

%RP¢2=Ji
%LVERS=,0"

pf16

DTE.

PfJ 6

BIN

DTF.

)!~7

BIN

DUMP

.014

DYLDR

fJ'fJ%

EDIT15

.022

EDIT

OOSSAV

065

DTC.

113

DTCOPY

.01.0

DTD.

No CLOSE on
every opere
CLOSE on
every opere
EDIT

ABS

UC15=.0

BIN

EDITVP .022

EDITVP

EDITVP=.0'

BIN

EDITVT .022

EDITVT

EDITVT=1i}'

BIN

.022

Table I (Cont.)
Sources Assembled Un~er MACRO-IS
Source File
Name
EXECUT

Rename It
To

Desired
Version

PAGE MODE

SSS

BANK MODE

Assembly
Parameters

PDP9=i

Type of
Binary

Footnote

BIN

PDP1S=~

FNEW

JaJa4

BIN

FOCAL

~2S

PAGE MODE

BIN

BANK MODE

%PDP9=,0
%PDP15=¢

BIN

8,5

FORT

~¢2

FORTRAN OTS
F4PI

~49

SEE F4P2

F4P2

~49

F4X

~49

FPF4X

%FPP=J'

BIN

8,5

~49

F4X9

%PDP9=,0'

BIN

8,5,13

BIN

INSTRC

112

LKA.

p~}1

• LOAD

S28

PAGE MODE

BIN

BANK MODE

PDP9=..0

BIN

l,13

LPA.09

%%4

LPA.

¢¢4

LPA.15

¢49

LPA.

~49

FORM FEED ON
• CLOSE

BIN

LPA.

~49

NO FORM FEED
ON • CLOSE

NOFF=1

BIN

LPA.

~2¢

FORM FEED ON
.INIT,.CLOSE,
COUNT OF 58
LINES

BIN

LPA.

1120

OTHER LINE
COUNT

BIN

LPA.

¢2~

AND HANDLER - NOFF="
GENERATED FROM'
FEED

BIN

LPA.

~2;1

UNSPOOLED*
OPERATION

BIN

LPU.

%2i

FFCNT=OCTAL
COUNT

NOSPL=0

*If the UNICHANNEL-15 spooler is turned on, this version of the line printer
handler will run unspoo1ed.

Table 1 (Cont.)
Sources Assembled Under MACRO-IS
Source File
Name
LP .. 647

LTORPB
LTX.
MACIMG

MACINT

Rename It
To

Z¢.
)'5Ji2
¢¢~

¢¢6

014

Desired
Version

Assembly
Parameters

LPA.

ri12

TAB STOP=8

LPA.

ri~2

TAB STOP=l,0

FOR 8K PDP-II
FOR 4K PDP-II

MAC11

014

~86

MACRO

MTA.

004

MTC.

f1f1~

MTDUMP

~~5

MTF.

012

NUVAL

086

Footnote

BIN

1,13

TABI,0=ll

BIN

BIN
BIN
BIN

3
16

LM4K=i

BIN

FOR 12K PDP-II LM12K=,R1

BIN

FOR 8K PDP-II

ABS

FOR 4K PDP-II

LM4K=~

ABS

FOR 12K PDP-II LMI2K=¢
MACRlS

Type of
Binary

ABS

BIN

,0foj)

BIN

PATCH

018

ABS

PPA.

,O,01

BIN

PPB.

jJ~1

BIN

PPC.

,0;n

BIN

PAA.

fJ~g

~,0

BIN

PRB.

BIN

QFILE

010

BIN

Table 1 (Cont.)
Sources Assembled Under MACRO-IS
Source File
Name

RESMON

RFBOOT

,.84

,0'14

Rename It
To

Desired
Version

Assembly
Parameters

'I'ype of
Binary

Footnote

ABS

2,6,12,15

UC15

UC15=0'

ABS

2,6,12,15

UC15
No LP TCB

UC15=0'
LPTCB=0'

J?BS

2,6,12,15

UC15
No CD TCB

UC15=.0

ABS

2,6,12,15

UC15
No XY TCB

UC15=0'

.AI3S

2,6,12,15

UC15
No spare TCB's
(Call delete)

UC15=0'
TCB=0'

J\BS

2,6,12,15

UC15
No Spare #1 TCB

UC15=.0
TCBl=.0

ABS

2,6,12,15

UC15
No Spare #2 TCB

UC15=.0

lUIS

2,6,12,15

UC15
No Spare #3 TCB

UC15=.0
TCB3=.0

lUIS

2,6,12,15

No UC15

CDTCB=~

XYTCB=~

TCB2=~

HRM

UC15 Option

UC15=.0

FIRM

HRM

UC15=0'

HRM

RKBOOT

.014

RPBOOT

,0',0'6

UC15 Option

Table 1 ·(Cont.)
Sources Assembled Under 11ACRO-lS

Source File
Name

Rename It
To

SGEN

~4S

SGNBLK

~2~

Desired
Version

Assembly
Parameters

Type of
Binary

Footnote

BIN

F.F SYSTEM

ABS

RK SYSTEM

RK¥1S=¢

ABS

RP SYSTEM

RP}if2=¢

ABS

SPOLSZ=SIZE OF
SPOLll PROGRAM

BIN

FB=FIRST BLOCK
NUMBER OF SPOOL
PROGRAM
SPOLSZ=SIZE OF
SPOLll PROGRAM

ABS

BIN

ABS

SPLIMG

~~2

SPOLIS

023

SPOOL

SRCCOM

011

SYSBLK

~13

RF SYSTEM

RK SYSTEM

RK~5=~

ABS

RP SYSTEM

RP0'2=\O"

ABS

~23

.SYSLD

,053

ABS

2,6

TRACK

~fb3

BIN

UPDATE

~¢S

ABS

VPA.

~13

VPA.

BIN

VPA.S

VPA.S=st

BIN

VTA.

,6~4

BIN

VTPRIM

xff14

BIN

VWA.

.0,£j3

BIN

xyU.

~32

XYA.

032

XYll PLOTTER

BIN

XYA.

032

XYll PLOTTER,
UNSPOOLED
OPERATION

NOSPL=0

BIN

8TRAN

001

89TRAN

0~1

Table 2
Sources Assembled Under MACRo-i1
Source File
Name

Assembly
Parameters

Footnote

Type of
Binary

Rename It
To

Desired
Version

LM12K MAC

MACR01 MAC

MACRO 2 MAC

MACR03 MAC

MACROS MAC

MCIOCH MAC

MEMSIZ MAC

No Devices

With CR11

$CD=2~~~¢

OBJ

with DECtape

$DT=¢

OBJ

11,14

With LPl1/LS111
LVII

$LP=¢4~¢~¢

OBJ

11,14

With LVII

$LV=¢

OBJ

11,14

With XY11 Offline switch

$PL=l~~~~

OBJ

11,14

$PL=1~0~0

OBJ

11,14

LM4K MAC
LM8K MAC

PIREX

117

PST MAC
SPOL11

*23

OBJ

11
I

With XYl1 No
Off-line Switcr.

$NOSW=0

With RK¢S

$RK=1~~0.0¢

OBJ

With XY311
inches scale

$PL=¢I.0.0.0.0
$PL311=.0

OBJ

11,14

With XY311
metric scale

$PL=¢10.0¢¢

OBJ

11,14

$PL311=~

OBJ

$UNIT=.0

With CR11

$CD=~2¢~¢¢

OBJ

With LP11/LS11

$LP=~4.0.0.0.0

OBJ

$PL=.01~000

OBJ

with

XY] 1
I

*See footnote 9.
The * in the file name extension represents several possible characters,
as explained in the footnote.

Table 3
Miscellaneous Sources

Source File
Name

Desired
Version

Special
Instructions

Type of
Binary

Footnote

CIRCLE

SRC

COMPILE WITH
FORTRAN

BIN

INSALL

¢¢4

NO UCIS

RENM1E IT TO
INSALL SRC

N/A

INSALL

U~S

HAVE UC1S

RENAME IT TO
INSALL SRC

N/A

INSERR

~yf2

RENAME IT TO
INSERR SRC

N/A

ROTATE

SRC

COMPILE WITH
FORTRAN

BIN

VECTOR

SRC

COMPILE WITH
FORTRAN

BIN

The type of binary produced affects the method by which it is incorporated into an existing system.

The last column in each table

references an explanatory note which describes the method of binary
installation.
EXPLANATORY NOTES
First, the disk system must be restored to the disk using DOSSAV.
Then, after assembling the code, one of the following steps must
be performed as indicated in the footnotes to Tables 1, 2, and 3.
1.

Nearly all relocatable binary I/O handlers should bE! transferred,
using PIP, to the <IOS> directory, e.g.,

With the exception of a few PDP-II programs, all programs which
are to be core image (SYS) files are installed by using the
PATCH program.

The following example is for assembled binaries

whose file extension is ABS:
PATCH
>CHAIN)

Vnn

>READ~CHAIN)

Some relocatable binary routines are kept in the <PER> directory.
They can be transferred there using PIP, e.g.,

The BANK and PAGE mode versions of these programs should be
transferred, respectively, to the <BNK> and <PAG> directories
using PIP with commands similar to those above.

Although FNEW

is not conditionalized, it goes hand in hand with FOCAL.

Thus,

a copy of FNEW BIN should be transferred to both directories.
INSTRC BIN, INSERR SRC, dnd INSALL SRC should be transferred to
both the <BNK> and <PAG> directories using PIP.

INSTRC BIN

is the program which implements the Monitor's $INSTRUCT command
and INSERR SRC and INSALL SRC are its data files.

With the exception of a few PDP-II programs, all programs which
are to be core image (SYS) files are installed by using the
PATCH program.

The following example is for assembled binaries

whose file extension is BIN:
PATCH
Vnn
>D0815)
>READR~16077~DOS1S)
>
For the programs in this category, the following nurneric arguments are needed in the READR command:
17600
16077
17143
17075
17122
17600
17477
16122
17600
17600
17600
17600
17600

PIP
D081S
EDIT
EDITVP
EDITVT
MTDUMP
QFILE
8GEN
8TRAN
89TRAN
DTCOPY
F4
SRCCOM
6.

A few programs with ABS file extensions are installed using
PATCH into programs with dissimilar names.

For example,

PATCH Vnn
>RESMON)

>READ~SGNBLK)

The file SGNBLK is patched into RESMON.

Files in this category

are:
File

is Patched into

DKL.

• SYSLD }
.SYSLD (
.SYSLD J
RESMON
RESMON

RKL.

DPL.
SGNBLK
BCDB.
7.

Choose one of the three as a function
of which disk is the system device
(DKL. is for the RF15/RS,0"9 Disk).

There is no conditional assembly required for MACRO-IS.

determines whether or not to run as the page mode version
(r.1ACRO-lS) or the bank mode version (BMACRO-15) by a dynamic
test at run time.

Assembly instructions for the FORTRAN OTS routines are given in
an appendix to the manual PDP-IS FORTRAN IV OPERATING ENVIRONMENT,
DEC-IS-LFEMA-A-D.
Assembly of the compiler, because it is in two parts, requires
a special command string to MACRO-IS, e.g.,

with additional command characters as necessary.

After

assembling the compiler, see note 5.

SPOOL and MACII are PDP-II programs that exist as PDP-IS system
programs.

Each of these system programs contains some PDP-IS

code at the beginning; this code is the system interface.

Both

these system programs are laid out on the disk as indicated
below:

PDP-IS code

increasing disk
block #'s

Space for expansion bug fix

Contiguous
area of disk
allocated to
system program
by SGEN

PDP-II code

Space for expansion bug fix

In order to build the image of both these programs, space on
the system disk has to be reserved through SGEN, using the
following information.
MACll*

no overlays, 2 buffers
40 blocks (octal)
-12 and -11 .DAT slots

*See Appendix on UC15 Options in Unichannel-15 Software Manual
(DEC-IS-XUCMA-A-D) for further details.
11

SPOOL

no overlays or buffers
4S blocks (octal)

After creating the system programs via SGEN the images can
be built as follows:
MACll:

Assemble MACIMG ~~6 using MACRO-IS to
produce MACIMG BIN.

Assemble the different pieces of MACll,
as indicated below, using MACRO-II under
DOS-II (a step which cannot be done by
the PDP-IS customer).
# MCUCX-€!' iC~<LM8K'MEMSIZ ,MACROl,

MCIOCH,MACR02)

if a CREF listing is required,
otherwise null string

# MCUCA '@

tC~<LM8K'
MEMS IZ ,MACROl ,
MCIOCH,MACR03,MACROS)

The above 2 assemblers will produce the
object modules MCUCX.OBJ and HCUCA.OBJ
for an 8K UCIS system. For 4K and 12K
UCIS systems use LM4K and LM12K respectively
instead of LM8K.

# MCUPST,LP:/CRF<LM8K,PST)
c.

To produce the load module of MACll on
papertape the above 3 object modules
have to be linked by the DOS-II linker
(not available to PDP-15 customers), i.e.,

#PP:MCUCl5/SQ'~<MCUCX'MCUCA'MCUPST/B:~/E
for a load map
d.

GLOAD on DOS-IS (load and execute) MACIMG
BIN after loading the MACll object module
on the high speed paper tape reader and issuing API OFF. A 'DONE' message is printed
on the console when the image of MACll has
been successfuly built on the disk in the
area reserved by SGEN. MACIMG performs its
own I/O; hence, it does not require assignments to .DAT slots.

Rename MACINT .014 to MACll ~14, assemble
with MACRO-IS and then use PATCH as shown
in note 2, to install it into MACll.

SPOOL:

Assemble SPOLII *28 under MACII to produce
the SPOLil load module on papertape. The *
in the file name extension can be any of the
following, which indicate which assembly
parameters are defined internally in the
source code.
To change assembly parameters
one must edit the source file.
* = I
A
B
C
= D
E
F
G

for null task
for LPII/LSll task only
for CRII task only
for LPII/LSII and CRII tasks only
for XYll task only
for LPll/LSll and XYll tasks only
for XYll and CRII tasks only
for LPll/LSll, XYIl and CRII
tasks only

For example,
SPOLll C22 should be the name of the source
file when the spooled devices are to be
LPIl/LSll and the CRll.

10.

Assemble SPLIMG ~~2 under MACRO-1S.

Issue an API OFF command to DOS then,
GLOAD SPLIMG BIN after loading the SPOLII
object module in the high speed paper tape
reader. A "DONE" message is printed on the
console when the image of SPOL 11 has been
successfully built on the disk.

Rename SPOLIS ~23 to SPOOL ~23, assemble
with MACRO-1S and then use PATCH, as shown
in note 2, to install it into SPOOL.

The ABSLll loader cannot be assembled with the version of MACRO-IS
supplied to customers.

It requires a special version of MACRO-1S,

called MACRO-D, used to generate PDP-1S Diagnostic programs.
difference is in the load addresses for HRM tapes:
MACRO-IS and
11.

177~~

1772~

The

for

for MACRO-D.

PIREX is conditionalized so that code for only existing devices
need be assembled.

The output from MACll to paper tape is an

absolute binary object module which is loaded into the PDP-II
by the ABSLII loader as described in the Unichannel-IS Software
Manual,

(DEC-IS-XUCMA--~-D).

The conditionalization for DEC tape

and LV1I is listed for the user's convenience.

These devices

are not software supported by DEC.

12.

DOSBCD, the batch card reader handler, is part of the resident
monitor.

The position in core memory occupied by DOSBCD depends

upon the size of the resident monitor (RESMON).

Thus the

start address of OOSBCO, BCOSTA, is a variable which can be defined
as an assembly parameter.

Also,

certai~

addresses in OOSBCD must

be supplied to RESMON at a specific address, BCDADR, to insure
proper operation.

Both parameters are defined from values obtained

from an assembly listing of

RESMON.

The value to be assigned to

BCDSTA should be the same as the value of the parameter CD, defined
by the line CD=., in RESMON.

The value for BCOADR should be set

equal to the location one higher than the address tap DATLI in
RESMON.
For RESMON

~~4

these values are:
NO UC15

13.

HAVE UC15

BCDSTA

6463

7572

BCDADR

11726

13041

steps taken to produce the DOS-IS tapes distributed by DEC

The

vary from those outlined in the tables in a few cases:
a.

The F4X9 version of the FORTRAN compiler was made by
renaming the source file F4P2 ~49 to F4X9 ~49, rather
than to F4 ~49 as shown in Table 1. The resulting
binary file after assembly is F4X9 BIN rather than
F4 BIN. This was done so that this particular version
of the compiler could readily be identified in the
disk's <PER> UFO. The code produced either way is
identical.

The

LP~9

line printer handler was not renamed to LPA.
as indicated in Table 1, so that the binary file
in the disk's <PER> UFO can be identified as LPA.~9
BIN.
~~4,

The 647 line printer handler was not renamed to LPA.
~~2, as indicated in Table 1, so that the binary file
in the disk's <PER> UFD can be identified as LP.647 BIN.

14.

OFFLINE SWITCH
The CALCOMP plotter does not have an offline switch.

This

leads to difficulty in stopping the plotter to refill pen,
take off plots, etc.

Bit 2 switch of the PDP-II console

switches is to be used as the offline switch for the CALCOMP.
If you do NOT wish this feature define

$NOSW=~.

Note, for $PL3ll, this is automatically disabled, do not
define!!
Conditional Assembly for XYll or XY3ll Plotter Interface
$PL3l1 if defined will generate the control bytes required
for CALCOMP's 936.

If undefined, the control bytes for

CALCOMP's 500 series are generated.

If $PL3ll is defined

then the units for the plotter step size should be specified.

$UNITS defined generates a metric plotter.

Unde-

fined gives one in inches.
15.

The UC15 version of the RESMON contains six special buffers utilized as PIREX/DOS TCB's.

These buffers are

utilized as follows:
1.
2.
3.
4.
5.
6.

A 117 word Line Printer TCB.
A 65 word Card Reader TCB.
A 117 word Plotter TCB.
A 24 word Spare TCB.
A 120 word Spare TCB.
A 170 word Spare TCB.

The spare TCB's are available for the use of customer
programs desiring communication with PIREX.
If any of these TCB's are not needed - they can be deleted
by utilizing the appropriate assembly parameter.
16. LTX. is a dummy handler.

See the SGEN-DOSUTILITY PROGRAM MANUAL.

(DEC-15-USGNA-A-D) for more details about the use of LTX.

HOW TO OBTAIN SOFTWARE INFORMATION
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DECUS
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DECUS
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DOS-15 ASSEMBLY PARAMETERS
DEC-15-0DAPA-A-D
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