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1130 System hardware
1130 System software
Emulating the 1130
Resurrecting DMS
Other retro-emulators
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Other 1130 and IBM and retrocomputing resources

Emulating the IBM 1130

Want to have an 1130 of your own? They're hard to find these days, but... you can have the next best thing: an emulated 1130 to run on your very own PC.

We have developed an IBM 1130 emulator based on Bob Supnik's SIMH package (see http://simh.trailing-edge.com/). The emulator simulates an 1131 processor with up to 32KW of memory, the console keyboard and printer, 1132 printer, 1442 card read/punch, and up to five disk drives. It's a work in progress, but it runs Disk Monitor System Release 2 Version 12, and it's pretty fun.

You can download the emulator from http://ibm1130.org/ibm1130.zip. It's been tested on Windows, Unix, Linux and VMS.

Included in the download file is another zip file (ibm1130software.zip) that includes:

  • A compiled version of the emulator and cross-assembler that runs on Windows, with a graphical user interface
  • An disk image file containing Disk Monitor System Release 2 Version 12 (DMS R2V12), Fortran and the Macro Assembler, ready to run
  • All source code for DMS R2V12, including the batch files needed to build it and the 1130 job deck needed to create a clean disk image
  • A few small Fortran sample jobs
  • A few small assembly language programs
  • Some "one card" programs (cold start cards) from Oscar E. Wyss (http://www.cosecans.ch)

The documentation is not yet complete. The file "readme1130.txt" describes how to run the sample programs. The Word file ibm1130.doc, which is unfinished, is the beginning of a detailed emulator and DMS reference. The final documentation will be distributed as a PDF file.

Have fun, let us know what you think of it, and check back with us regularly for updates!