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Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!zaphod.mps.ohio-state.edu!rpi!pawl19.pawl.rpi.edu!sigma
From: sigma@pawl19.pawl.rpi.edu (Kevin J Martin)
Newsgroups: comp.binaries.ibm.pc.d,comp.sys.ibm.pc
Subject: Hercules emulation
Message-ID: <%B##8~%@rpi.edu>
Date: 18 Feb 90 22:26:21 GMT
Organization: Rensselaer Polytechnic Institute, Troy NY
Lines: 17

My SuperVGA adapter can emulate the Hercules MonoGraphics board in hardware,
and even works with a generic mouse in this mode (720x348x2), but I have a
friend with a standard IBM VGA card in a PS/2, who would like to be able to
run several Hercules-only or Hercules-preferred programs on his system.

I know there are several programs which can simulate CGA quite effectively 
on a Hercules card, but is there any program which can simulate Hercules on
a VGA??  It seems that the principle would be the same - reprogram the
VGA controller for 720x348 or as close as your monitor can handle, and then
(somehow) intercept graphics calls and writes and remap them appropriately.

I wouldn't know where to begin writing such a program. Can anyone, or does
anyone already have such?

Thanks,
Kevin Martin
sigma@pawl.rpi.edu