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  • IBM 7690 Clinical Workstation video/LCD controller ROM

    From Josh Rodd@joshua.at.rodd.dot.us@rodd.us to comp.sys.ibm.ps2.hardware on Tue Sep 15 22:38:41 2026
    From Newsgroup: comp.sys.ibm.ps2.hardware

    Folks,

    The IBM 7690 Clinical Workstation is an interesting beast. It appears to
    have its own video ROM BIOS which functions as an MCGA BIOS, and when
    the PS/2 Model 30 BIOS sees an option ROM at C000:0000... it assumes
    it's a video ROM, and doesn't install its own ROM.

    That's all well and good, but I'm trying to write an emulator for the
    7690 and it would be great to have a dump of that ROM.

    Anyone got access to one of these things?

    The commands you'd need to run are...

    DEBUG
    -n M27256FI.BIN
    -r bx
    BX 0000
    0
    -r cx
    CX 0000
    4000
    -w C000:0000
    Writing 4000 bytes
    -q



    and then get that file to me, somehow.
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  • From Josh Rodd@joshua.at.rodd.dot.us@rodd.us to comp.sys.ibm.ps2.hardware on Sun Sep 20 19:40:11 2026
    From Newsgroup: comp.sys.ibm.ps2.hardware

    For anyone who cares... the 7690 is now booting and (mostly) running diagnostics and LEDTOUCH.SYS works, in the current 86Box nightly builds
    (7.0, since build #10058).

    Type 1 and Type 2 PS/2 Model 70s have also been added.
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