History of Xenix – Microsoft's Forgotten Unix-Based Operating System

Re:History of Xenix – Microsoft's Forgotten Unix-Based Opera... by slrz on Saturday October 08, 2016 @07:03PM (#12669117)

Yes, some were microcoded. And you were able to replace that microcode with your own creations!

See for example this paper, where they took a VAX and rewrote its microcode so that it executed instructions for the Warren Abstract Machine, the output format of their Prolog compiler.

It's like you would reprogram your Core i7 to directly consume JVM bytecode.

http://hps.ece.utexas.edu/pub/gee_micro19.pdf

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Re:History of Xenix – Microsoft's Forgotten Unix-Based Opera... by pjmlp on Sunday October 09, 2016 @11:31AM (#12671636)

Thanks for the link.

I was a big Prolog fan during my degree.

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