Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ames!pasteur!newton.Berkeley.EDU!jmorton
From: jmorton@newton.Berkeley.EDU (John Morton)
Newsgroups: comp.graphics
Subject: PGA help?
Keywords: PGA
Message-ID: <9702@pasteur.Berkeley.EDU>
Date: 10 Feb 89 15:38:01 GMT
Sender: news@pasteur.Berkeley.EDU
Reply-To: jmorton@newton.berkeley.edu (John Morton)
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Organization: University of California, Berkeley
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My shop has inherited an IBM PC AT with PGA.  I embarked on a project
which requires plotting points on the screen, and immediately discovered
that PGA was apparently forgotten soon after it was released - the C
compilers here don't mention it, anyway.

What I need is a bit of sample code which will display something using
"high-function graphics", i.e. the 640x480 mode.  I am working out of
the Professional Graphics Controller Technical Reference, which
lists a lot of graphics commands that can be sent to buffers at certain
addresses in video memory.  So far I can't get anything up on the 
screen, so I guess my understanding of the book is incorrect.  

I am using Microsoft C (actually Quick C), calling movedata() to
poke memory.

Any suggestions?  (Be explicit - I am pretty new at this!)

thanks in advance, John Morton
			jmorton@newton.berkeley.edu