[comp.sys.ibm.pc] vga register access...

mg32+@andrew.cmu.edu (Michael Ginsberg) (02/10/90)

I've got a VRAM VGA board with 512K on it... it can access up to 1024x768
in 16 color, and my monitor has no problem with this...

I can switch it's mode via INT's from under DOS, but...

I'm running Mach, a unix type OS, and can't do the INTs... The people I work
with tell me that I can access the modes by putting stuff in the registers on
the board directly... They know how to do this, they just need the numbers...

So: can anyone give me the numbers for 800x600 [which is a standard vga+ mode
that my card can handle, along with any norman vga+ board] as well as the
extended 1024x768x16 color mode?

Thanks, and please reply via mail since I don't always read this board...

--Michael Ginsberg
Carnegie Mellon University, Pittsburgh, Pennsylvania, USA

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