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Article #4

Re: SVGA, information wanted

#4
From: cslewis
Date: Tue, 27 Oct 1992 22:31
31 lines
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I've been doing some SVGA programming over the last few days.
I'll share with you all the little information I have.

int 10h, 4f01h gives SVGA mode information.  Set these registers:
	AX : 4f01h
	CX : SVGA mode #
	ES : segment of a 256 byte buffer where info is stored
	DI : offset of buffer
then call int 10h.

int 10h, 4f02h sets the SVGA mode, where BX is the mode number
(100h - ???).

I've been experimenting with mode 105h (1024 x 767 x 256 colors).
int 4f01h says that this mode uses 8 bits per byte, not bitplanes,
with 12 64k windows.  I'm trying to draw pixels using write mode 2
but they come out looking weird, as if there are bitplanes that I'm
not handling correctly.

Can anyone else give more information about working in SVGA mode?
Please post or email.  Otherwise, I can followup with some more
info.

-Scott Lewis
cslewis@vesta.unm.edu

-- 
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Scott Lewis
cslewis@vesta.unm.edu
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From: cslewis@vesta.unm.edu ()
Subject: Re: SVGA, information wanted
Message-ID: <vy4p+6d@lynx.unm.edu>
Date: Tue, 27 Oct 92 22:31:45 GMT
Organization: University of New Mexico, Albuquerque
References: <andreasa.69.720182469@dhhalden.no>
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