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Article #759VGA PC: Multiple pages in Mode 13h?
From: Jerry Shekhel
Date: Mon, 17 Aug 1992 17:34
Date: Mon, 17 Aug 1992 17:34
16 lines
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1591 bytes
Hello. I'm very new to PC programming, and I'm wondering if it's possible to have multiple pages in Mode 13h in a way that works on all VGA's. I can see how I can start the display at any address, but I can't see a way of writing to a different page in Chain4 mode. Since the lowest two address bits determine the video plane, there's no way to specify the upper two address bits, and I assume that they're always 00 in Chain4 Mode. Is there a way to change this? -- +-------------------+-----------------------+--------------------------------+ | Jerry J. Shekhel | Molecular Simulations | Time just fades the pages | | Drummers do it... | Inc. Waltham, MA USA | in my book of memories. | | ... In rhythm! | (617) 890-2888 | -- Guns N' Roses | +-------------------+-----------------------+--------------------------------+ | ...! [ princeton mit-eddie bu sunne ] !polygen!jerry | | jerry@polygen.com | +----------------------------------------------------------------------------+
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Newsgroups: rec.games.programmer Path: arc1-ca.pugleaf.net!sparky!uunet!caen!sol.ctr.columbia.edu!connection!jerry From: jerry@connection.prospect.com (Jerry Shekhel) Subject: VGA PC: Multiple pages in Mode 13h? Organization: Molecular Simulations, Inc. Message-ID: <1992Aug17.173418.17990@ctr.columbia.edu> Sender: news@ctr.columbia.edu (The Daily Lose) Date: Mon, 17 Aug 1992 17:34:18 GMT X-Posted-From: connection.prospect.com X-Posted-Through: sol.ctr.columbia.edu Lines: 16