IBM 1130 simulator

steven at steven at
Wed Oct 7 00:39:30 CDT 2020

Van said
> In about 1974, for my senior undergraduate project, I wrote microcode
> to convince a Varian V70 that it was actually an IBM 1130.
> Being substantially more modern hardware, it was much faster than a
> real 1130.
> If anybody wants microcode and flow diagrams, and listings for the I/O
> simulation (which ran in 620/f mode), I'm happy to send them.
> Van Snyder
> van.snyder at

It sounds interesting, if somewhat esoteric. Why not put it on Github?
There it can be preserved (we hope), searched, perused, and by the curious, downloaded :)


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