Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!wuarchive!zaphod.mps.ohio-state.edu!rpi!uupsi!sunic!compuram!pgd
From: pgd@bbt.se (P.Garbha)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: ATI VGA-Wonder Programming Information wanted
Message-ID: <1990Aug9.080328.2117@bbt.se>
Date: 9 Aug 90 08:03:28 GMT
Organization: .
Lines: 17

I have an ATI VGA-Wondercard (1024) and is looking for programming
information for it. In the "PROGINFO.DOC" it says how the memory is
organized, but what i im looking for is information about differences
between the ATI Wondercard and normal VGA. What values to put into the
extended registers?
Specifically i am looking for information on how to setup the card
directly on the hardware level. (Becuase i am using unix, the BIOS is
no accessible.)

I made a small program to setup a video mode with int 10, reads all
the hardware registers, and puts the values in a files. With a similar
program it is possible to read the dumped values and re-program the
registers again. It works, except for the 800x400 and higher modes.
It seems like I am missing something with the extended registers. Are
they fully readable and re-programmable?

Does anyone have any information regarding the card?