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Release Tape Mechanism for RPG II
Date: 19 Oct 76
Copyright (C) 1976
Cerritos Community College District and Robert Currier
This software is furnished under license for use only on a single
computer system and may be copied only 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 except for
use on such system and to one who agrees to these license terms.
Title to and ownership of the software shall at all times remain with
Cerritos Community College District and Robert Currier.
The information in this software is subject to change without notice
and should not be construed as a commitment by either Cerritos
Community College District or Robert Currier.
Release Tape Mechanism for RPG II Page 2
With this release of RPG II the mechanism for producing release tapes
and new assemblies has been streamlined greatly. Using the Batch
system, it is now possible to create compilers and tapes with standard
parameters with relative ease. The various control files and their
functions are listed below.
RPG10.CTL This control file will produce a standard
DECsystem-10 RPG II compiler. The compiler
will be multi-segment and assembled to run on
a KA processor, thereby running on all DEC-10
RPG10O.CTL This control file will produce a one-segment
DECsystem-10 RPG II compiler system. All
other switches are set as in RPG10.CTL.
RPG10D.CTL This control file will produce a multi-segment
DECsystem-10 compiler with the debug option
turned on, thereby allowing easier debugging.
RPG20.CTL This control file, designed to be run on a
DECsystem-20 will produce a standard compiler
for a DECsystem-20.
RPGL10.CTL This control file will produce a RPG II
runtime system to run on a DECsystem-10.
There is no CPU dependent code in the runtime
system at this time.
RPGL20.CTL This control file will produce a RPG II
runtime system to run on a DECsystem-20.
RPGTAP.CTL This control file will produce a BACKUP format
release tape containing all RPG II components,
including those not for general distribution.
This and all other release tape producing
programs are designed to be run on a
RPGTP1.CTL This control file will produce a BACKUP format
release tape containing all components
necessary for a standard DECsystem-10 version
of RPG II.
RPGTP2.CTL This control file produces a BACKUP format,
Interchange mode, tape with all the components
necessary to create a DECsystem-20 RPG II
system. Note that this tape will NOT contain
a save format file of RPG II since experience
has shown that when RPG II is produced for a
20 on a 10 (the standard distribution
computer) the save file is not as reliable as
one produced on a 20. It is therefore
necessary to submit RPG20 and RPGL20 after the
files on the release tape have been copied.
Release Tape Mechanism for RPG II Page 3
All control files that produce a compiler should be submitted with a
time limit of one hour. All control files that produce a runtime
system need only 30 minutes, and all control files that produce tapes
need only 15.
RPG II compilers and runtime systems
produced for the DECsystem-10 will not
properly function on the 20 and visa
There are several assembly switches of interest to the average user;
these are DEBUG, ONESEG, %CPU, and STATS.
DEBUG enables certain the assembly of certain debugging features.
This switch should be off for the standard user.
ONESEG enables a one-segement compiler. On KA based systems and KI
and KL systems that do not wish to use VM, it is desireable to use
multiple machine loads of minimal size to avoid monster swapping.
When ONESEG is zero the compiler will consist of five standard
segments and one optional error dump segment. If ONESEG is set to
one, then the compiler will consist of one large segment ( > 60K ).
%CPU sets the CPU that the compiler is designed to run on. There is
currently very little optimization for the various PDP-10 processors
so it may be advantageous to assemble the compiler for a KA-10 and
leave it alone. If the compiler is to run on a KL-20, %CPU must be
set to the proper value. The various values are listed below:
0 KA-10 processor.
1 KI-10 processor.
2 KL-10 processor.
3 KL-20 (or any CPU running TOPS-20).
STATS is a switch that affects the runtime system only. This switch
controls the output of various run statistics at the end of each
object run. While this information can be extremely useful, the heavy
price (90% overhead) paid for the statistics gathering makes it
somewhat useless for the average user.
Any of these switches should be set up in the module RPGASM.MAC if
they are going to be changed from the distribution standard.
Any change from distribution standard
constitutes modification of the software
and therfore may lead to loss of
software support. When reporting any
problems with the software be sure to
state what the status of each switch is
in your compiler and runtime system.
Try it and see if it works. No formal acceptance procedures have been
set up at this time.