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Article #19892

Re: What is MCGA?

#19892
From: David Charlap
Date: Mon, 11 Jan 1993 21:56
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In article <10JAN199310055249@utarlg.uta.edu> b645zjo@utarlg.uta.edu (Rick Homard) writes:
>
>I recently got some software which requires either an EGA, MCGA, or VGA
>video adapters.  What is MCGA?  The software will not run on my PC
>with a CGA card.   Additionally, does an emulator exist so I can run
>the software on my PC (ie: can I fool the software into thinking I
>have either of the monitors listed)?

MCGA is a subset of VGA.  It was implemented on bottom-end PS/2's in
the early years of the PS/2.  It stands for Multi Colored Graphics
Adapter.

It mimics all modes of the MDA/CGA/EGA adapters.  It can also do all
these modes with the 18-bit palette registers of a VGA.  If you give
it full memory (I think this is 256K), you can get 320x200x256 (a-la
VGA) and 640x480xmono (sort-of VGA).

It also has analog output.  It's never been used aside from some
low-end IBM machines.  When a program uses MCGA, they usually refer to
the VGA-low-res 320x200x256 mode that MCGA also does.
-- 
  |)  David Charlap          | .signature confiscated by FBI due to
 /|_  dic5340@hertz.njit.edu | an ongoing investigation into the
((|,)                        | source of these .signature virusses
 ~|~
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From: dic5340@hertz.njit.edu (David Charlap)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Re: What is MCGA?
Message-ID: <1993Jan11.215605.528@njitgw.njit.edu>
Date: 11 Jan 93 21:56:05 GMT
References: <10JAN199310055249@utarlg.uta.edu>
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