From:	vnorrman AT lk-hp-6 DOT hut DOT fi (Vesa A Norrman)
Newsgroups:	comp.os.msdos.djgpp
Subject:	Simulating a linear frame buffer
Date:	29 Nov 96 21:43:07 GMT
Organization:	Helsinki University of Technology
Lines:	12
Distribution:	inet
Message-ID:	<vnorrman.849303787@snakemail.hut.fi>
NNTP-Posting-Host:	lk-hp-6.hut.fi
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Hello,
I'm writing a graphics library, but my SVGA card does not support a linear
frame buffer. I want to write a program that allows me to write routines
which need not worry about bank switching in VESA video modes.
  The program would allocate 1024Kb of linear memory that would be used to
acces video memory. 64Kb of that memory would point to 64Kb video memory
window at 0xA0000. If other parts of that 1024Kb were accessed the
program would generate an exception and switch video memory bank.
Can you give me pointers to source code and documents?
-- 
Vesa Norrman
vnorrman AT cc DOT hut DOT fi

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