XDS 9300 User manual

Pri ce: $3.00
MONARCH REFERENCE MANUAL
for
900 SERIES/9300 COMPUTERS
90 05 66D
December 1969
© 1964,1965,1966,1967,1968,1969, Xerox Data Systems, Inc. Printed in U.SA

REVISION
This publication, XDS 90 05 66D, is a minor revision of the MONARCH Reference Manual,
90 05 66C (dated July 1967). A change in text from that of the previous manual is indi-
cated by a vertical line in the margin of the page.
RELATED PUBLICATIONS
Title
XDS 92 Integrated Computer Reference Manual
XDS 910 Computer Reference Manual
XDS 920 Computer Reference Manual
XDS 925 Computer Reference Manual
XDS 930 Computer Reference ManuaI
XDS 940 Computer Reference Manual
XDS 9300 Computer Reference Manual
XDS 900 Series/9300 Monarch Technical Mtanual
XDS 900 Series FORTRAN II Reference Mtanual
XDS 900 Series FORTRAN II Operations Manual
XDS 900 Series/9300 ALGOL 60 Reference Manual
XDS 900 Series/9300 Symbol and Meta-Symbol Reference Manual
XDS 900 Series/9300 Project Management System Reference Manual
XDS 900 Series/9300 Extended Project Mtanagement System
Reference Manual
XDS 900 Series/9300 Sort/Merge Reference Manual
XDS 900 Series/9300 Business Language Reference Manual
XDS 900 Series/9300 Manage Reference Manual
XDS 900 Series/9300/Sigma ADAPT Part Programming Reference
Manual
NOTICE
Publ ication No.
9005 05
900008
900009
900099
900064
900640
900050
90 06 16
900003
9005 87
900699
9005 06
90 08 18
90 15 04
9009 97
90 1022
90 1046
90 1045
rhe s~cifjcation~ ~f the ~oftwo.re sy~tem .described in this p~~lication are subject to change without notice. The availability or performance of some features may
iepena on a specIfIc confIguration or equIpment such as addItIonal tape units or larger memory. Customers should consult their XDS sales representative for details.
ii

CONTENTS
l.
INTRODUCTION Termination
of a Run
17
Loader
17
Operating Environment 1 Unit Assignment Requirements
18
MONARCH 1 Storage
All ocation
18
META-SYMBOL/SYMBOL 2
The Loading Process
19
FORTRAN II
2 Automatic Selective Loading
from the
ALGOL 2 MONARCH library
19
Functions of MONARCH 2
How MONARCH Performs Its Functions 2
4.
PROGRAMMING FOR MONARCH
21
Sal ient MONARCH Features 3
Octal Dump Routine
21
2. MONARCH CONTROL
MESSAGES AND
Symbol Table Typeout Routine
21
FUNCTIONS 4
Octal Correction Routine
21
Loader Routine
22
Syntax of Control Messages 4 System Update Routine
23
Control Message Parameters 4
The Update Control Message
23
Numeric Parameters 4 Control Iing an Update
Run
24
Literal Parameters 5
COpy Messages
25
Symbolic Parameters 5 Contents of a Typical MONARCH System
Control Message Formats 5 Tape
27
System Control 6 System Tape
27
JOB 6 Examples
28
ENDJOB 6 Error
Hal ts during Update Runs
29
ASSIGN (ONLINE) 6
Processor Control 7 5.
PREPARING PROGRAM DECKS
30
METAXXXX
7
MET A-SYMBOL Assembiy and Execution
30
SYMBOL
8
FORTRAN Compi lation and Execution
31
FORTRAN
8 ALGOL Compilation and Execution
34
RTFTRAN
8
ALGOL 9
6.
OPERATING PROCEDURES
36
Input Control 9 Loading the MONARCH System
36
FILLSYS .. ____
9 Furnishing Control Messages
36
LOAD
9 Program
Hal ts and Recovery Procedures
38
FORTLOAD 10
System Output 38
RTFTLOAD
11
MONARCH Loader's Symbol Table 38
FORTLINK 11
FORTRAN Loader's Output 38
ALGOLOAD 11
Utility Functions 11
APPENDIXES
C 11
A.
MONARCH UNIT ASSIGNMENT TABLE
40
SET
12
B.
MONARCH SYSTEM TAPE
43
LABEL
12
C.
LOADER OPERATIONS
49
DISPLA Y (S HOW)
12
D.
UPDATING META-SYMBOL ON MONARCH
POSITION
13
TAPES
54
REWIND
13
E. FORTRAN LIN KAGE
55
S KIPFILE
13
F.
XDS STANDARD BINARY LANGUAGE
60
S KIPREC
13
G.
PROCESSOR DIAGNOSTICS
66
BACKFILE 14
H.
RAD MONARCH
70
BACKREC
14
I.
XDS CHARACTER CODES
74
WEOF
14
J.
FORTRAN II RUN-TIME MAGNETIC TAPE
BOOTLOAD
14
OPERATIONS
75
CARDTAPE
15
INDEX
79
EOF
15
ILLUSTRATIONS
System Maintenance
15
UPDATE
15
l.
MONARCH Program Halts and Recovery
Procedures
37
3.
THE MONARCH SYSTEM
16
2.
FORTRAN Loader Output
'lO
'"',
Monitor
16
3.
MONARCH Loader Symbol Table 39
Standard System Routines
16
4.
FORTRAN Run-time Errors
76
iii

1. INTRODUCTION
MONARCH is a batch-oriented operating system that
allows batched assemblies, compilations, and executions.
The MONARCH system is available to users of XDS 9300
Computers and of XDS 900 Series Computers, and offers
three distinct advantages:
1. Reduced operator intervention that increases oper-
ational reliability.
2. All control messages recorded at the typewriter for
visual
verification and permanent logging.
3. Batch processing capabi I ity that reduces throughput
time.
MONARCH allows batch processing to proceed without
the operator having to set up processing parameters or
select input/output devices. Use of appropriate control
cards preceding the program permits intermixing and
uninterrupted processing of assemblies, compilations,
and executions. Printouts of control and error messages
are made available during processing, and the oper-
ator is concerned only with setting up of tapes, ioad-
ing of cards, etc. If a program fai Is, the operator
inspects the hard copy of control information and
makes necessary adjustments in input/output assign-
ments, tape designations, etc.
A certain portion of MONARCH - called the Resident-
remains in main memory at all times. The resident in-
cludes the MONARCH Bootstrap (to load the MONARCH
operating system), the Unit Assignment Table (UAT),
error and job switches, memory dump routines, and
for RAD MONARCH, the RAD file Management Pack-
age. The MONARCH operating system does not re-
main in core during the execution of programs; only
the resident portion is there. MONARCH is reloaded
as needed between jobs.
The major portion
of the MONARCH operating system is
the Monitor (see Section 3). The monitor accepts con-
trol information from many input media, assigns periph-
eral equipment as requested, and loads and executes
specified standard system routines. The control mes-
sages must precede the program to be processed. In this
manner,
batch processing proceeds free from operator
intervention and may involve the consecutive processing
of programs from different media.
During all operations, a portion of MONARCH resident
in main memory retains a record of input/output assign-
ments and contains the bootstrap. When called, the
bootstrap loads a short program (Bootstrap Loader) which
in turn loads the MONARCH loader. The MONARCH
loader can bring any of the following routines into core
from the system tape:
1. The META-SYMBOL Assembler (900 Series only).
2. The SYMBOL Assembler.
3. The META-SYMBOL Loader(loads binary object pro-
grams produced by MET A-SYMBOL and SYMBOL).
4. The FORTRAN II Compiler (900 Series only).
5. The FORTRAN Loader (loads object program pro-
duced by the FORTRAN compiler, necessary sub-
routines from the FORTRAN Library, and the
FORTRAN Run-Time package (900 Series only).
6. The ALGOL Compiler.
7. The ALGOL Loader (loads object programs produced
by ALGOL).
8. The Update Routine (allows modifications and up-
dating of the MONARCH system tape).
9. The SYSGEN Routine (copies a RAD MONARCH
system tape onto the RAD).
The
library and utility routines, provided with the system
or
added by the user to the system tape, are also brought
into core by the loader.
In the remainder of this document, the phrase "system
tape
ll
refers to the medium on which the MONARCH
system is
stored: a magnetic tape for TAPE MONARCH,
or a RAD File for RAD MONARCH.
OPERATING ENVIRONMENTS
The operating environment in wh ich th is system is to func-
tion is given below. The appropriate interrupt and data
transmission facilities are assumed.
MONARCH
The MONARCH system
requires for its use the following
minimum
configuration of computer equipment:
1. An XDS 9300 Computer or an XDS 900 Series Com-
puter system with at I east 8192 words of core memory.

2.
3.
A console typewriter to be used by the system to
communicate with the console operator.
T
tl' . .
wo or more on- me magnetic tape units.
The sys-
tem tape is on a magnetic tape unit.
4. For RAD MONARCH, one RAD File.
5. One or more of the following:
card reader/punch
paper tape reader/punch
Iine printer
MET A-SYMBOL/SYMBOL
META-SYMBOL requires
12,288 words of core memory;
its
requirements for input/output devices are the same
as those for MONARCH. SYMBOL operates on the
minimum
configuration required by MONARCH.
If both the encoded and symbolic input are on the same
device, an additional magnetic tape or MAGPAK is re-
quired by META-SYMBOL. The same requirement is
true if either the symbol ic or encoded input is to be read
from magnetic tape.
FORTRAN II
FORTRAN II operates on the minimum configuration re-
quired by MONARCH.
ALGOL
In addition to the minimum MONARCH configuration,
ALGOL requires one output device; that is, ALGOL
must have a device for binary output and one for output
Iisting (a Iine printer).
FUNCTIONS OF MONARCH
The operating system is a basic program execution pack-
age which provides the following functions:
1. Loading
and execution of standard system routines.
For
example:
a. FORTRAN compilation.
b. META-SYMBOL assembly.
c. Punched card-to-magnetic tape conversion.
d. MONARCH system updating.
tA MAGPAK may be used in place of two magnetic tape
units.
2
2.
Loading and execution of previously compiled or
assembled programs for
checkout or production runs.
For
example:
a. Run a previously compiled ALGOL program.
b.
Run a program consisting of several previously
compiled subprograms and a previously com-
piled FORTRAN main program.
3. Combined assembly,
loading, and execution of pro-
grams for checkout or production runs. For example:
a. Compile-and-go execution of FORTRAN pro-
grams.
b.
Assemble-and-go execution of symbolic pro-
grams.
4.
Combinations of the above functions. In the follow-
ing examples the phrases "job stack" and "batched
job stack" refer to the collection of control infor-
mation, programs, and data which are to be pro-
cessed under control of the MONARCH monitor
routine. For example:
a. A series of META-SYMBOL assemblies.
b. Several META-SYMBOL assemblies
intermixed
with one or more META-SYMBOL object pro-
grams to be assembled and then executed.
c. A mixed batch requiring that any or all
MONARCH functions be carried out in an
arbitrary sequence determined by their order in
the batched job stack.
5. Loading of standard input/output routines prior to
loading and executing previously assembled pro-
grams, so that these standard routines can be exe-
cuted upon request from the program being run. For
example:
a. Loading standard input/output routines from the
system tape.
b. Loading a conversion routine or trigonometric
function routine from the MONARCH library.
HOW MONARCH PERFORMS ITS FUNCTIONS
The MONARCH operating system performs its functions
between jobs and does not exerc ise control over the exe-
cution of a program once that program has been loaded
and control has been transferred to it. The functions are
indicated to MONARCH via control messages.
Upon
request, MONARCH loads a program and then re-
Iinquishes control of the computer and its associated pe-
ripheral equipment to the program. The only possible
way MONARCH can regain control of the computer is if
MONARCH is reloaded from the system tape. This may

be done manually by the console operator or under pro-
gram control by the program being executed.
SALIENT MONARCH FEATURES
The sal ient features of MONARCH are:
1. The system minimizes the amount of manual interven-
tion required to execute a succession of independent
or related programs on the computer.
2. Core memory requirements for the monitor routine
are minimized during program execution; that is,
the monitor performs its functions between program
executions, and MONARCH holds only those in-
structions and data required for continuity of oper-
ation during program execution.
. 3. The amount of control information that must be
furnished
to the monitor and the system routines is
held to a minimum.
4. The control information for all system functions
is presented in a consistent and straightforward
manner.
5. Insertion and deletion of routines from the system
are accompl ished via a simple update routine.
6. Routines to be added to the system are introduced
in the standard format used for assembly program
output. That is, al most any program which can be
assembled by SYMBOL or META-SYMBOL
can be
incorporated into this operating system as a stan-
dard system routine.
3

2. MONARCH CONTROL MESSAGES AND FUNCTIONS
When the MONARCH system is loaded, the monitor
takes control of the computer and obtains the first item
of control information from the console typewriter. This
item may be any legal control message. With a C con-
frol message, the operator may specify that future con-
trol messages are to be obtained from other input media.
Control messages may be entered through the following
input media:
console typewriter
punched cards via an on-I ine card reader
punched paper tape via a paper tape reader
magnetic tape via a magnetic tape unit (other than
the one on which the system tape is mounted)
When the monitor obtains a control message from a medi-
um other than the typewriter, it types the message be-
fore executing the function req uested. (The operator
may direct the monitor to print the control message on
an on-line printer. See "Operating Procedures," Sec-
tion 6.) In th is way the monitor informs the console op-
erator of the functions being performed under its control
and maintains a written record of such functions. The
monitor tells the operator that a given function is com-
pleted by typing the next control message or by request-
ing the next one from the typewriter.
SYNTAX OF CONTROL MESSAGES
Regardless of which device the monitor accesses for con-
trol information, the format of the messages is the same:
~f.
or
~fI\P1' P2' ••• ,Pi·
/:::,. (1 character) indicates the beginning of a message.
f
(1 to 8 alphanumeric characters) is a mnemonic con-
trol functi on code.
4
indicates a space. These symbols are used to indi-
cate the minimum number of spaces which must sep-
arate the function code and the first parameter.
(1 sis 24) is a symbolic, numeric, or literal para-
meter that provides necessary control information
re lated to the control function (f). For example I a
request for the system loader to load a program
must
indicate the intitial load relocation bias for
the program that is to be loaded. A maximum of 24
parameters may be specified in one control message.
A
separator. Acceptable separators are
, =><$[ J*/()/\I@
(1 character) indicates the log ical end of message.
The
physical end of message is indicated by the end
of record in the case of magnetic tape and cards or
by a carriage return in the case of paper tape and
typewriter. The logical end of message is required
only when comments are included.
Regardless of the length of the record containing a con-
trol message, the routine that scans control messages ex-
amines only the first 72 characters (18 words) of the
record. Therefore, the period indicating the end of the
message must occur prior to the 73rd character of the
record.
The first character of a control message is a delta (~).
This character and the function code may be contiguous
or may be separated by one or more spaces. When the
function does not require a parameter list, the function
code is followed by a period; otherwise, a space sepa-
rates the parameter Iist from the function code.
Various control messages require different numbers of
parameters. If more than one parameter is required, all
but the last must be followed by a separator; the last one
is followed by a period.
CONTROL MESSAGE PARAMETERS
The monitor converts parameters in a MO NARC H control
message into a standard internal form. Except for literals
(see below), it represents parameters internally as single-
precision, 24-bit, binary values. Hence, the "value"
of a parameter is its internal representation as a binary
quantity or bit pattern, and it is the "value" of a para-
meter that is ultimately examined by the subroutine in
the monitor which processes the specific function code.
Th is method of parameter conversion usually allows many
ways
of representing a given value externally. For ex-
ample, the control message parameters 'OOOA' (literal
parameter) and MTl W (symbolic parameter) have the fol-
lowing internal representations or values:
'OooA' =00000021
MTlW = 00203611
which cou Id be entered as numeric parameters.
NUMERIC PARAMETERS
A numeric parameter may be written as:
1. An
octal integer, consisting of up to nine octal dig-
its, the first of which must be zero. An octal in-
teger may be preceded by an algebraic sign:
047, +062, -0, 0, 077777777, -032154767

2. A decimal integer, consisting of up to eight deci-
mal digits the first of which must not be zero. A
decimal integer may be' preceded by an algebraic
sign:
9, +532,
-0, [phone], -31579988
The first digit of an octal integer must be zero in order
for MONARCH to distinguish it from a decimal integer.
Unsigned octal parameters must have values less than
224; signed octal parameters and all dec imal parameters
must be less than 223. If the number of digits in a num-
ber exceeds the appl icable Iimit, the least significant
digits are truncated.
Regard less of the form used, the parameter is represented
internally as a single-precision, signed, binary integer.
LITERAL PARAMETERS
A I iteral parameter consists of up to eight alphanumeric
characters enclosed in single quotation marks (SDS inter-
nal code of 14). t Any legal character (see Appendix H)
except a quotation mark may be written as a literal:
1. A single-precision Hteral consists of up to 4 charac-
ters:
2. A double-prec ision I iteral consists of up to 8 char-
acters:
A literal parameter is represented internally as a left-
justified string of internal character codes (six bits each).
A single-precision literal isstored in one computer word.
A
double-precision I iteral is stored in two words:
I ABC DEFGH' is stored in a and a + 1 as
(a) = 21222324
(a+1) = 25262730
Spaces
(internal code of 60) are used to fill any unspec-
ified character positions. For example:
'ABC ' is represented internally as 21222360
I ABC DEI is represented internally as 21222324
25606060
tThe single quotation mark is not present on the type-
writer; however, its internal code (14) is the same as
that of the typewriter symbol @ (upper case 8). There-
fore, whenever input is from the typewriter, the symbol
@ must be used in place of the sing Ie quotation mark.
Double-prec ision I iterals are frequently used to desig-
nate program names for MONARCH search functions.
(See LOAD control message.)
SYMBOLIC PARAMETERS
Symbolic parameters are symbol ic representations of par-
ameters associated with many of the control messages ex-
plained later in this section.
Symbolic parameters consist of up to four characters, the
first of which must be alphabetic and the remaining either
alphabetic or numeric. Each symbolic parameter has a
predetermined value (24 bits) which is stored in MON-
ARCH's table of symbolic parameters. Use of a symbol
not defined in this table causes the control message in
which the undefined symbol appeared to be ignored and
an error message to be typed.
A octal parameter with the same value may be substi-
tuted for any symbol ic parameter in a control message.
Listed
below are the symbol ic parameters used to specify
input/output devices to the MONARCH system. In this
list, h specifies the channel and is actually written as W
or Y for 900 Series Computers or A, B, C, or D for 9300
Computers. Throughout this manual, references are made
to the "W" and "Y" buffers; users of the 9300 Computer
shou Id substitute the appropriate channel letters in these
places. If h is omitted from a parameter, channel W (or
A) is assumed. The n specifies the unit number.
Parameter Definition
CR designates the card reader where there is
only one.
CRnh designates card reader n on channel h.
CPnh
designates card punch n on channel h.
PRnh designates paper tape reader n on channel h.
PPnh designates paper tape punch n on channel h.
TV
designates the console typewriter (i. e.,
typewriter 1 on channel W).
MTnh
designates magnetic tape unit n on channel h.
DFnh
designates RAD Fi Ie n on channel h.
LP designates the I ine printer (i. e., line
printer 1 on channel W).
S designates the system tape (i. e. , magnetic
tape unit 0 on channel W).
CONTROL MESSAGE FORMATS
The user directs the operation of the MONARCH system
via control messages which may be input from the type-
writer, punched paper tape, or punched cards. Most
frequently, the control messages are on punched cards
preceding the user's input card decks.
5

System Control
JOB
ENDJOB
ASSIGN (ONLINE)
Processor Control
METAXXXXt
SYMBOL
FORTRAN
RTFTRAN
ALGOL
Input Control
FILLSYS
LOAD
FORTLOAD
RTFTLOAD
FORTLINK
ALGOLOAD
Utility Functions
C
SET
LABEL
DISPLAY (SHOW)
POSITION
REWIND
SKIPFILE
SKIPREC
BACKFILE
BACKREC
WE OF
BOOTLOAD
CARDTAPE
EOF
System Maintenance
UPDATE
SYSTEM
CONTROL
JOB The JOB control message specifies the
system is to be in 11 job mode
ll
•
~JOB.
When the system is set to job mode, it resets the proces-
sor error switch. If an error occurs while a processor
(such as FORTRAN or META-SYMBOL) is
being exe-
cuted, the processor error switch is set. Then, if the
operation is a load-and-go (i. e., compile-and-execute
or assembl e-and-execute), the IIload" function is not
honored because of the processor error. If no error oc-
curs during such a load-and-go operation, the IIload
ll
function is honored.
The MONARCH system remains in job mode until an
ENDJOB control message is encountered. Therefore,
whenever a job is preceded by a JOB message, it should
be followed by an E NDJ 0 B (see below) as a courtesy to
the next user who may not wish to assemble (compile)
his program in job mode.
END JOB This control message spec ifies that the
system is not in job mode.
~ENDJOB
tXXXX indicates the name of a set of system PROCs that
will be used to interpret the program mnemonics during
the META-SYMBOL assembly (e. g., ME TA92 0,
MET A910, MET A9300, METASPEC, etc.). META91 0
wi II assemble on any machine and will produce binary
output for 910. The set of PROCs is a ~ 2 record within
the scope of the META-SYMBOL logical file (see IISys-
tem
Update Routine
ll
in Section 4 for an explanation of
62 records).
6
When an E NDJOB control message is received, MON-
ARCH resets the processor error switch and terminates
job mode. If a processor is being executed in a load-
and-go operation not in job mode, MONARCH wi II
honor the IIload
ll
function even if processor errors have
occurred.
The system wi II not return to job mode unti I it receives
a JOB control message.
ASSIGN ASSIG N (or ONLINE) enables the user
ON LINE to specify the input and output media to
be used during the current job.
~ASSIG N L=P l' L=P 2' ..• , L=P 9'
~ONLINE L=P
1,L=P2
,· .. ,L=P
9.
Lis a system label.
P is a symbolic parameter designating the specific device
(see Symbol ic Parameters).
The labels for the standard unit assignments are:
Label Reference
SI Symbolic Input
SO Symbolic Output
BI Binary Input
BO Binary Output
EI Encoded Input
EO Encoded Output
LO List Output
UI Update Input
X1 System Scratch
X2t System Intermediate Output Scratch
X3 System Scratch (magnetic tape)
S System (magnetic tape)
Labels for Logical unit assignments are:
Label
LO
L1
L2
L3
L4
L5
L6
L7
LCR
LCP
LLP
Reference
Magnetic Tape Logical Unit 0
Magnetic Tape Logical Unit 1
Magnetic Tape Logical Unit 2
Magnetic Tape Logical Unit 3
Magnetic Tape Logical Unit 4
Magnetic Tape Logical Unit 5
Magnetic Tape Logical Unit 6
Magnetic Tape Logical Unit 7
Card Reader
Card Punch
Line
Printer
Note: Ln may be assigned to any physical tape unit;
i. e., LO=MT2W, L2=MT7W, etc.
The logical unit assignments are used in the Business Lan-
guage and in FORTRAN II RAD MONARCH to permit re-
assignment of unit numbers.
tX2 must be assigned to
magnetic tape unit 2 (MT2)
under MAGPAK environment when using META-SYMBOL.

At least one pair of parameters must be given, and a maxi-
mum of nine pairs is allowed per control message. The
valueofthe first parameter must bea label specifying a
unit assignment entry; e. g., SI, LO, etc. The value of
the second parameter must be a legal peripheral device
designation on an existing channel; e. g., PR1W, MT3Y,
etc. The symbolic parameter associated with the periph-
eral device should be consistent with the flow of infor-
mation; that is, it would be illegal to assign BI=CP1W
(binary input to be entered from the card punch).
Once a unit assignment has been made, it remains in
effect until a new assignment for that label is made.
When a logical tape is assigned to the RAD for execution
of a FORTRAN program, it should be assigned to Xl or
X2, where Xl or X2 has been assigned to the RAD. This
permits up to two such files to be simultaneously active.
Examples:
.6ASSIGN BI=CR1W, BO=CP1W.
This message assigns card reader 1 on the W buffer as
the binary input device and card punch 1 on the W buf-
fer as the binary output device.
.60NLINE LCR=CR1W, LLP=LP1W, L2=MT1W.
This message assigns
card reader 1 on the W buffer as
the card input device, printer 1 on the W buffer as the
on-line printer, and a second magnetic tape (L2) as
magnetic tape physical unit 1 on the W buffer. This
ONLINE statement assigns LCR, LLP, and L2 in BAT
(Business Language Assignment Table, which is de-
scribed in Appendix A).
Note that magnetic tape units are numbered 0 through
7; all other devices are numbered from 1.
.6 ASSIGN BI=CR1W, S=MTOW, LCR=CR1W•
.6ASSIGN LLP=LP1W, L2=MT1W.
These messages assign: (1) card reader 1 on the W buffer
as both the binary input device and the card reader for
a Business Language program; (2) magnetic tape unit 0
on the W buffer as the system tape; (3) I ine printer 1 on
the W buffer as the on-I ine printer for a Business Lan-
guage program; and (4) the magnetic tape physical unit
1 on the W buffer as the magnetic tape logical unit 2
of a Business Language program.
PROCESSOR CONTROL
METAXXXX (900 Series only) This control message
directs MONARCH to load and transfer control to the
MET A-SYMBOL assembly system•
.6METAXXXX P1, P
2' C, CONC, EXCP, SET.
XXXX specifies which procedure-oriented library
MONARCH is to load prior to the assembly. Thus,
the control message may be written as:
.6l·AET A920 for
920 procedure-oriented library.
.6META910
for 910 procedure-oriented library.
.6META9300
6METAB910 ]
6METAB920
for 9300 procedure-ori ented library .
6METAB93H for
900 Series special-purpose pro-
cedure-oriented I ibrary for busi-
ness data processing.
The user may provide his own procedure-oriented
I ibrary on the system tape. It must be identified
by a unique, 4-character name. That name isthen
used in place of XXXX in the METAXXXX control
message.
P1 specifies type of input:
Parameter
SI
EI
Type of Input
Symbolic Input
Encoded Input
P2 spec i fi es type of output:
Parameter
SO
EO
BO
LO
Type of Output
Symbol ic (Source) Output
Encoded Output
Binary Output
List Output
C (optional) specif ies that cornpatibility mode tiOnsla-
tion of symbolic input is desired. Use of this param-
eter enables the user to translate a SYMBOL-4 or
SYMBOL-8 source program into META-SYMBOL
source form.
CONC (optional) specifies that a concordance listing
t
is to be produced by META-SYMBOL.
EXCP
(optional) specifies that exceptions are to bemade
to the concordance I isting
t as
designated on META-
SYMBOL control cards INCLUDE and EXCLUDE. If
EXCP is present, CONC is not specified.
SET (optional) specifies that a larger table should be re-
served for use by the META-SYMBOL preassembler
to accomplish translation of standard system pro-
cedures to the user's program format. This parame-
ter is not necessary when the control message is
META920, META910, or META9300, but should be
used with a call for the XDS Business Language. SET
may also be necessary for future higher order lan-
guages implemented in META-SYMBOL.
tllConcordance Iisting" refers to a Iisting of the symbols
appearing in the META-SYMBOL source program, along
with a reference to the instructions in which the symbols
appeared. INCLUDE control cards may be used to limit
concordance listing to specific symbols only; EXCLUDE
control cards enumerate specific symbols which are to be
omitted from the concordance listing.
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