Archive for the 'Simulators' Category

IBSYS Fortran II runs on a SIMH-based simulator

Monday, April 3rd, 2006

An upcoming release of Bob Supnik’s SIMH (Computer History Simulation system) will include IBM 704/709/7090/7094 simulation provided by Rich Cornwell. Rich has been very busy lately: implementing and debugging the simulations of the CPU, channels, controllers, and devices; tracking down and transcribing source code for diagnostics; and figuring out how to rebuild and run various [...]

Brad Parker resurrects MIT CADR Lisp Machine source code

Tuesday, October 4th, 2005

Brad Parker recently announced:
After a long and interesting search I uncovered a set of 9-track tapes which appear to be a snapshot of the MIT CADR Lisp machine source code from around 1980. This is not the final source code and not the last source release I will make. It is, however, the first source [...]

Pascal Bourguignon recreates machine-readable source for LISP 1.5

Wednesday, June 8th, 2005

Pascal Bourguignon encountered this item on my History of LISP web site:

LISP system assembly listing. “FIELD TEST ASSEMBLY OF LISP 1.5 SEPTEMBER 1961″, labeled “Bonnie’s Birthday Assembly”. M.I.T. Museum, donated by Timothy P. Hart and scanned by Jack Harper. PDF (16MB)

and promptly began reconstructing machine-readable source. This morning he announced on comp.lang.lisp his progress (he’s [...]

Dave Pitts is making progress running Fortran II

Tuesday, March 8th, 2005

I have been negligent in reporting impressive progress made by Dave Pitts emulating IBM 7090 software. As Leif Harcke posted to alt.folklore.computers and bit.listserv.ibm-main on 2 February 2005:

Dave has developed his “asm7090″ cross-assembler to the point where it can assemble the core of IBSYS from MAP source. The resultant IBSYS image will run the [...]

Historic software at bitsavers.org

Sunday, November 28th, 2004

Although the majority of items at Al Kossow’s bitsavers.org are scanned copies of manuals, he also has software in source and/or executable form for a variety of machines (scroll down to “The Software Archive”) . Some of the oldest include MIT’s TX-0 and DEC’s PDP-1.
His manual collection also includes scanned copies of source code [...]

IBM 7094 Emulator now runs Fortran IV compiler

Tuesday, September 14th, 2004

I expect most Dusty Decks readers are aware of alt.folklore.computers, but it’s worth noting Rob Storey’s recent post IBM 7094 Emulator now runs Fortran compiler. As I posted in June, Rob has written a IBM 7094 emulator. Through the work of James Fehlinger, the emulator can load and execute the compiler, and [...]

Peter Zilahy Ingerman

Thursday, June 17th, 2004

I learned that Peter Zilahy Ingerman, PhD, was the donor of the Fortran II listing at The Smithsonian. Peter published a number of books and papers in the area of programming languages and compilers.
I called Peter and had a very pleasant conversation. It turned out he’d donated the Fortran materials to The Smithsonian [...]

Rob Storey

Friday, June 11th, 2004

Earlier I had learned that Paul Pierce’s web site contains images of a number of system tapes for old IBM mainframes. Paul provides some utilities he wrote for making sense of these old tapes, which were written on 7-track drives, with 6-bit BCD characters and 36-bit words.
Tonight I came across Rob Storey’s web site. [...]