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MONSYM.DOC -- Version 5
COPYRIGHT (C) 1976,1978,1982 BY
DIGITAL EQUIPMENT CORPORATION, MAYNARD, MASS.
THIS SOFTWARE IS FURNISHED UNDER A LICENSE AND MAY BE USED AND COPIED
ONLY IN ACCORDANCE WITH THE TERMS OF SUCH LICENSE AND WITH THE
INCLUSION OF THE ABOVE COPYRIGHT NOTICE. THIS SOFTWARE OR ANY OTHER
COPIES THEREOF MAY NOT BE PROVIDED OR OTHERWISE MADE AVAILABLE TO ANY
OTHER PERSON. NO TITLE TO AND OWNERSHIP OF THE SOFTWARE IS HEREBY
THE INFORMATION IN THIS SOFTWARE IS SUBJECT TO CHANGE WITHOUT NOTICE
AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY DIGITAL EQUIPMENT
DIGITAL ASSUMES NO RESPONSIBILITY FOR THE USE OR RELIABILITY OF ITS
SOFTWARE ON EQUIPMENT WHICH IS NOT SUPPLIED BY DIGITAL.
MONSYM.DOC Page 2
MONSYM.DOC -- Version 5
MONSYM is a file containing all of the definitions relevant to monitor
calls (JSYSes), their arguments and values. It is normally used in
its .UNV form when assembling TOPS-20 machine language programs. The
.REL form may be loaded with any program to provide all
monitor-related symbols for debugging.
MONSYM is not an executable program. Its definitions reflect TOPS-20
Release 5, and it may be assembled by and used with MACRO version 53A.
MONSYM does not require other software components.
MONSYM contains definitions of symbols found in the Monitor Calls
Reference Manual. A listing of MONSYM itself is occasionally useful
to the machine language programmer as a concise specification of
monitor call formats.
2.0 EXTERNAL CHANGES
There are no external changes in MONSYM for Release 5.
3.0 KNOWN BUGS AND DEFICIENCIES
1. MONSYM does not presently define all fields and arguments of
all monitor calls. Where the Monitor Calls Reference Manual
does not show a symbol for a particular field or argument, no
such definition exists in MONSYM.
2. MONSYM.MAC and MONSYM.UNV may only be used with MACRO
assemblies no equivalent files are available for other
4.0 INSTALLATION INSTRUCTIONS
4.1 Files Needed for MONSYM Use
MONSYM.UNV - Universal file for MACRO assemblies
MONSYM.REL - MONSYM definitions for loading with LINK
MONSYM.DOC Page 3
4.2 Instructions for Loading and Installing MONSYM
Mount the tape labeled Installation Tape on MTA0: and type the
SKIP MTA0:5 FILES
RESTORE <*>MONSYM.* (TO) SYS*.*.-1
4.3 Files Needed to Build MONSYM
MONSYM is built from the following files:
4.4 Instructions for Building MONSYM
Mount the tape labeled Distribution Tape on MTA0: and type the
RESTORE <*>*.* (TO) <self>*.*
This will run a batch job which builds the .UNV and .REL files. When
the job is completed, the log file should be checked for assembly
errors. If there are none, the files MONSYM.UNV and MONSYM.REL should
be renamed into SYS: by the commands:
@RENAME MONSYM.UNV (TO) SYS:MONSYM.UNV
@RENAME MONSYM.REL (TO) SYS:MONSYM.REL
4.5 Special Considerations
MONSYM is not an excutable program. Hence, there is no .EXE file of
it ever created.
MONSYM.DOC Page 4
5.0 INTERNAL CHANGES
Refer to MONSYM.TCO for detailed information about changes.
The following suggestions are being considered for a future release of
1. Include definitions for all remaining monitor calls and
2. Support other implementation languages, e.g., BLISS.
[End of MONSYM.DOC]