Looking for info on programming SVGA cards (T8900)

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#704

From: Johann Haider
Date: Mon, 13 Apr 1992 17:18

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Hello,
I'm trying to do graphics with a Trident T8900 SVGA board without any library.
So far I have succeeded to switch to graphics mode and write to the first
64 k of the graphic memory. To switch to the other pages one has to use
some in/out pecularities of the board which I don't know.  Unfortunately
the manual that came with the board is silent about this topic too.

The only source I have on this topic came with DJGPP, but the driver for
Trident T8900 board is buggy too ;-(.

I'd be glad if someone cold send me a code fragment that outlines the 
necessary in's/out's to acieve this task. If you have written such code
yourself please tell me where you have got the necessary information.
My references fade out as soon as the resolution is better than Standard
VGA.

thanks alot for your help
Hans

--
Johann Haider                               Rehabilitation Engineering Group
Institute for Electronics               Technical University Vienna, Austria
Email: jh@fortec.tuwien.ac.at		             phone:  +431 58801 3967

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Newsgroups: comp.os.msdos.programmer,comp.sys.ibm.pc.programmer,alt.msdos.programmer,comp.msdos.programmer
Path: arc1-ca.pugleaf.net!sparky!uunet!email!jh
From: jh@fortec.tuwien.ac.at (Johann Haider)
Subject: Looking for info on programming SVGA cards (T8900)
Message-ID: <jh.703185518@fortec.tuwien.ac.at>
Summary: switching of graphics pages needed
Keywords: SVGA Trident T8900 graphics
Sender: news@email.tuwien.ac.at
Nntp-Posting-Host: fortec.tuwien.ac.at
Organization: IAEE TU-Vienna, Austria
Date: Mon, 13 Apr 1992 17:18:38 GMT
Lines: 23