Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!bloom-beacon!apple!bbn!rochester!pt.cs.cmu.edu!b.gp.cs.cmu.edu!ralf
From: ralf@b.gp.cs.cmu.edu (Ralf Brown)
Newsgroups: comp.sys.ibm.pc
Subject: Re: VGA, direct memory access
Keywords: How to...?
Message-ID: <4404@pt.cs.cmu.edu>
Date: 3 Mar 89 22:49:12 GMT
References: <4479@freja.diku.dk> <953@infmx.UUCP> <4715@tekgvs.LABS.TEK.COM>
Organization: Carnegie-Mellon University, CS/RI
Lines: 24

In article <4715@tekgvs.LABS.TEK.COM> toma@tekgvs.LABS.TEK.COM (Tom Almy) writes:
}You don't have to worry about retrace with any graphics system except for the
}CGA cards made by IBM and a few CGA clones, and then only in text mode.

Or the occasional oddball like the monographics board in the Eagle PC-2, 
which required snow prevention in graphics mode only (and the graphics mode
addressed the display like this:

	0	16	...
	1	17
	...	...
	15	31
	1360	1376	...
	1361	1377
	...	...
	1375
when programmed for 680x384 graphics)


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