Help: Programming a SVGA card in 800x600 mode

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#6644

From: smhkotmans
Date: Fri, 20 Nov 1992 10:49

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Hallo netters,

I have three questions regarding programming my video card:

1)  Is there a standard way to detect if the graphics card used in a system
    can work in SVGA mode?
2)  For my application, i need the 800x600x256 SVGA mode. 
    Switching to SVGA mode 800x600x256, is this the same for all video cards 
    (Trident, Tseng, ATi) or do i need special code for each of them? If there
    is a difference, please give me information on how to set this mode.
    (I have an ATi-Wonder XL card my self)
3)  I know that a have to use bank switching to fill the video memory.
    What register addresses are used for this on an ATi-Wonder card?


Thanks in advance,
Henk Kotmans

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From: smhkotmans@mswe.dnet.ms.philips.nl
Newsgroups: comp.os.msdos.programmer
Subject: Help: Programming a SVGA card in 800x600 mode
Message-ID: <1992Nov20.114900.131088@mswe.dnet.ms.philips.nl>
Date: 20 Nov 92 11:49:00 +0100
Organization: Philips Medical Systems Nederland
Lines: 17