1401 Software Development
available for use on a PC :-))
was Simulator Status page
The goal of this page is to give the capabilities of
- ROPE, "our" 1401 Software development system
- - which includes "our" 1401 Autocoder assembler
- - which includes "our" 1401 emulator/simulator
which runs on a home PC.
Also how we punch a debugged program "object deck" from ROPE "object deck" to run on "our" IBM 1401 machines.
Table of Contents
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Ron Mak has made a Graphical Development Environment that
combines:
- a simple editor, with line and character positions displayed :-)) - Van Snyder's Autocoder assembler - control of Bob Supnik's SIMH very competent and complete 1401 simulator - with the Autocoder output listing - set/unset a breakpoint, just click the line in the listing and wrapped the above in a Graphical User's Interface (GUI) that makes life easy. If you want to examine 1401 memory, just open a window or two, want to see printed output? it is in a window on screen, want an operator display? open a window, want to step one instruction? click a button. You should see a demo! much better than any typed description! Ron calls his environment "ROPE" (Ron's Own Programming Environment)
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We are blessed by having a large number of 1401 documents on line at
courtesy of Al Kossow. Of particular interest to people wishing to code and simulate the 1401 are:
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Note: you do not need the following information to run ROPE just fine. Reference only
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Here is early User Instructions
and update instructions
OK - Autocoder - Instruction manuals Here is an on-line pdf of IBM's 1401 Reference Manual A24-1403-5 with a good description of the commands.
latest update April 2008, v0.7, can use new Autocoder V3.1, rough 1401 running timer
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SIMH Simulator
Note: you do not need the following information to run ROPE just fine. Reference only
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From The Computer History Simulation Project
- SIMH documentation by Bob Supnik - Supplemented I1401 User Manual - locally generated - - SIMH Help file This simulator is command line only, no GUI at all. Really Spartan! For really deep research, - Tricks for Simulating/Emulating the 1401 System - a listing of Van Snyder's Autocoder parameters & help file. - SIMH documentation by Bob Supnik |
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Van Snyder Utilities.
Van Snyder remarks about MACROs - July 9, 2010 By "have to be five characters" I mean the names of macros in columns 16-20, to be used to search for macro template files, have to be five nonblank characters, or MA or ma. Actually, I check that the trimmed length is five, so having blanks in the middle would be OK. I suspect "real" Autocoder wouldn't accept that. |
Developers of our environment using ROPE
- Bob Supnik - developed the simulator framework SIMH. (SIMH-FAQ is here., used by
- Van Snyder - who provided the specific 1401 simulator and the AutoCoder assembler Van can also supply a 1401 disassembler.
- Ron Mak - incorporated all of the above into "ROPE", an easy to use Windows environment
- Stan Paddock - provided the interface to a keypunch so you can punch ROPE object decks to run on an IBM 1401
Stan also provides consulting to users.
Started Jan 21, 2012
Last updated Jan 23, 2012
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test stuff 1401 - FORTRAN - SIMH