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Article #337VGA's Memmory Organization.
From: Chad Collins
Date: Mon, 13 Apr 1992 04:03
Date: Mon, 13 Apr 1992 04:03
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I was wondering if I could get some help in programming the VGA's memory directly. I am trying to us mode 13h (320 x 200 x 256) by writing directly to the VGA's memory and I wanted to be able to use the memory above segment 0xa000 to create my own video pages. The only thing I can think of here is that it uses the Map Mask register like the other VGA modes to have memory planes but I have never seen this writen anywhere or explained (i.e. is it four planes of 64k and 0xa000 or two of 128k from 0xa000 and 0xb000?). I would apprectiate any help... Thanks. Chad R. Collins collins@huey.cc.utexas.edu
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Path: arc1-ca.pugleaf.net!sparky!uunet!cs.utexas.edu!ut-emx!ccwf.cc.utexas.edu From: collins@ccwf.cc.utexas.edu (Chad Collins) Newsgroups: rec.games.programmer Subject: VGA's Memmory Organization. Message-ID: <70203@ut-emx.uucp> Date: 13 Apr 92 04:03:39 GMT Sender: news@ut-emx.uucp Distribution: usa Organization: The University of Texas at Austin, Austin TX Lines: 14