Groups > comp.sys.ibm.ps2.hardware > #71559

IBM 7690 Clinical Workstation video/LCD controller ROM

From	"Josh Rodd" <joshua.at.rodd.dot.us@rodd.us>
Newsgroups	comp.sys.ibm.ps2.hardware
Subject	IBM 7690 Clinical Workstation video/LCD controller ROM
Date	2026-09-15 22:38 +0000
Organization	csiph.com Internet News Service
Message-ID	<6aa9c8f1.3b6ab8da81087d2a@csiph.com> (permalink)

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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...

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

A>

and then get that file to me, somehow.

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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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