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Article #1144Re: vga
From: John A. Slagel
Date: Wed, 14 Oct 1992 20:12
Date: Wed, 14 Oct 1992 20:12
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1390 bytes
thomash@edb.tih.no (Thomas Hagen,o91b) writes:
>Is is possible to adress a VGA 320x200x256 screen using
>bitplanes, as opposed to the MCGA (bitmap)? And, if so,
>HOW?
Yes, use mode X.
>Page-swapping won't be needed, so using mode x seems a
>bit unnecessary.
If you don't need page swapping, then why would
you want to use bitplanes? The idea of ModeX is
to support many non-standard VGA resolutions at
other than 320x200 and to be able to use all of
the 256K of video memory. If you want to use these
features, use ModeX. If not, mode 13h will be
faster and simpler. And, at this point in time,
there are better and more complete libraries for
ModeX than there are for mode 13h.
--
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John A. Slagel, email: jas37876@uxa.cso.uiuc.edu
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Path: arc1-ca.pugleaf.net!sparky!uunet!ogicse!uwm.edu!ux1.cso.uiuc.edu!news.cso.uiuc.edu!uxa.cso.uiuc.edu!jas37876 From: jas37876@uxa.cso.uiuc.edu (John A. Slagel) Newsgroups: rec.games.programmer Subject: Re: vga Message-ID: <Bw4o4p.MAp@news.cso.uiuc.edu> Date: 14 Oct 92 20:12:24 GMT Article-I.D.: news.Bw4o4p.MAp References: <1992Oct14.164521.6435W@skylark.edb.tih.no> Sender: usenet@news.cso.uiuc.edu (Net Noise owner) Organization: University of Illinois at Urbana Lines: 24