I'm doing some bare metal programming and I'm getting a lot of information from the IBM VGA XGA Technical Reference Manual May92 document. The only reference I can find about this document, is this draft version from May 92.

Does a final version of this document exist, perhaps with another title?

  • That's part of the PS/2 Reference Manuals. Right?
    – Raffzahn
    Dec 22, 2017 at 21:00
  • Not sure what kind of information you are looking for, but VGA (and I suppose XGA) "bare metal" stuff is also explained in plenty of other documents, in case you can't find a final version.
    – dirkt
    Dec 23, 2017 at 6:36
  • 1
    @Raffzahn I had a look and mcamafia.de/pdf/pdfref.htm suggests that it is part of the PS/2 Reference Manuals indeed. I guess a copy of the final version never made it to the internet.
    – Stijn
    Dec 23, 2017 at 11:04
  • @dirkt I'm not concerned about the content, pretty sure it won't be very different from the final version. I asked mostly out of curiosity :)
    – Stijn
    Dec 23, 2017 at 11:05

1 Answer 1


Given that by 1992, even IBM had realised that the PS/2 line was a failure, and had already released the last model in the series at that point (if you even count the model 25, which was an ISA machine rather than MCA, so was really a PS/2 in name only...), I doubt there was a final version if the document was still in draft half way through 92.

(Reference: see list of PS/2 models on wikipedia)

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