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I want to write a emulator for one of the older Crays, but I've run into a stumbling block. I can't seem to find any actual code for them. (Which kind of makes sense I suppose, most of them would have been used for defense and the like..) Does anyone know where I might find something? Binaries or source, it's all good. The thing I'd like the most is a binary of COS. Thanks in advance.

sigjuice
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monocasa
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  • Just out of curiosity: If you don't have any code for a Cray, what do you plan to do with the emulator? Isn't it kind of pointless without code? – sleske Dec 18 '10 at 00:10
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    I want to understand the architecture really well just because it's such an important group of computers history-wise. Having actual code to run gives me validation that my assumptions from the docs were correct. (As I'm sure you know, even the best docs leave ambiguities; that's very often where the most interesting parts of an architecture lie). – monocasa Dec 18 '10 at 03:12
  • The maker of Cray-1 clone found something but not online (it's a removable disk pack) -- http://www.chrisfenton.com/homebrew-cray-1a/ – sendmoreinfo Mar 07 '13 at 20:06