andrew@otago.ac.nz (06/13/91)
Hi, Anyone know how to directly program the DAC registers on the VGA without going via the BIOS? All the books I have on the VGA avaid the subject like the pague! They only give examples of DAC programming by calling the BIOS! Andrew.
frank@cavebbs.gen.nz (Frank van der Hulst) (06/14/91)
In article <1991Jun13.173332.536@otago.ac.nz> andrew@otago.ac.nz writes: >Anyone know how to directly program the DAC registers on the VGA without going >via the BIOS? All the books I have on the VGA avaid the subject like the >pague! They only give examples of DAC programming by calling the BIOS! Get hold of "Programmer's Journal" from about '88 or so. There was a long series of articles by Michael Abrash about programming VGA, including source in assembler. I translated some to C, and now have a 320x400x256 colour x 2 page VGA mode! I think Abrash has also written a book. -- Take a walk on the wild side, and I don't mean the Milford Track. Kayaking: The art of appearing to want to go where your boat is taking you.
dmillar@monsoon.Berkeley.EDU (Derek Millar) (06/15/91)
In article <1991Jun14.082056.7579@cavebbs.gen.nz> frank@cavebbs.gen.nz (Frank van der Hulst) writes: >In article <1991Jun13.173332.536@otago.ac.nz> andrew@otago.ac.nz writes: >>Anyone know how to directly program the DAC registers on the VGA without going >>via the BIOS? All the books I have on the VGA avaid the subject like the >>pague! They only give examples of DAC programming by calling the BIOS! > >Get hold of "Programmer's Journal" from about '88 or so. There was a long >series of articles by Michael Abrash about programming VGA, including source >in assembler. I translated some to C, and now have a 320x400x256 colour x 2 >page VGA mode! > >I think Abrash has also written a book. > He did. The title is _Power Graphics Programming_ , published by Que, and it is basically a collection of his columns from "Programmer's Journal", including the one you mentioned. I couldn't find anything about programming DAC registers in it, though. -Derek Millar
zisi@opal.cs.tu-berlin.de (Andreas Zisowsky) (06/18/91)
Hi! I've found a very good book for you: "Programming the VGA" by Uphoff published by Addison-Wesley But be careful! It is very complex (and sometimes complicated), only use this book if you have a good monitor that won't break down when receiving wrong signals!