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- Newsgroups: comp.os.msdos.programmer
- Path: sparky!uunet!gatech!taco!dspascha
- From: dspascha@eos.ncsu.edu (DAVID SCOTT PASCHAL)
- Subject: Re: VGA buffer address
- Message-ID: <1992Aug22.200604.25610@ncsu.edu>
- Originator: dspascha@c00083-100lez.eos.ncsu.edu
- Lines: 9
- Sender: news@ncsu.edu (USENET News System)
- Reply-To: dspascha@eos.ncsu.edu (DAVID SCOTT PASCHAL)
- Organization: North Carolina State University, Project Eos
- References: <92234.143304KSADEGH@auvm.american.edu>
- Date: Sat, 22 Aug 1992 20:06:04 GMT
-
-
- Standard CGA-compatible text modes use B800h as their buffer address, but EGA/
- VGA/MCGA graphics modes use up to 64K starting at A000. However, if you're
- trying to directly read or modify pixels in graphics mode, you'll have to play
- around with the hardware registers, since the EGA and VGA map 256K or more into
- a space of just 64K.
-
- Tschuess,
- David Paschal
-