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Re: IBM 7690 Clinical Workstation video/LCD controller ROM

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"Josh Rodd" <joshua.at.rodd.dot.us@rodd.us> wrote:
> 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.

Thanks to a generous donor (of ROM dumps), the 7690 implementation will
soon have a more "realistic" implementation.

This is also the first (and probably the last) independent MCGA ROM BIOS
we have seen. It does appear to be complete and would make implementing
a (virtual) MCGA adapter card possible without having to write a BIOS
for it first. The fact it was used on the 7690 is an oddity, since the
7690 also has a built-in MCGA BIOS that works just fine.

86Box's nightlies now have the Type 1 PS/2 Model 80, Type 1 and Type 2
PS/2 Model P70s, an implementation of the IBM XMA memory adapter (the
one that can speak XMS, EMS, and XMA), and significantly improved
emulation of other aspects of early PS/2s.

The Model 90 with IML remains a dream in my mind... emulating that thing
could unlock a lot of IML's secrets, and perhaps even show us the road
out of IML.

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IBM 7690 Clinical Workstation video/LCD controller ROM "Josh Rodd" <joshua.at.rodd.dot.us@rodd.us> - 2026-09-15 22:38 +0000
  Re: IBM 7690 Clinical Workstation video/LCD controller ROM "Josh Rodd" <joshua.at.rodd.dot.us@rodd.us> - 2026-09-20 19:40 +0000
    Re: IBM 7690 Clinical Workstation video/LCD controller ROM "Josh Rodd" <joshua.at.rodd.dot.us@rodd.us> - 2026-10-02 02:38 +0000

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