Hi,

     >Can you run the basic VGA modes without the on-card bios?

     Sure. It's just that setting up video modes can get a little complicated.

     >What's in the VGA bios anyway?  Start-up code and the video interrupt
     >handlers?

     The VGA bios is basically a ROM chip on the board that contains 80x86
     instructions which are mapped into upper memory somewhere. The bios has
     several routines to switch into standard video modes and push pixels
     around. A good PC technical reference manual should show how these work.

     Eric

_____________________________ Reply Separator _________________________________
Subject: Re: Monitors
Author:  Scott Newell <newell@CEI.NET> at INTERNET
Date:    8/31/97 3:12 AM


>Hmm.  Unless space is a serious concern, I'd recomend a cheap vga *CARD*.
>All you have to do is figure out how to simulate a piece of ISA bus.

Can you run the basic VGA modes without the on-card bios?

What's in the VGA bios anyway?  Start-up code and the video interrupt
handlers?


later,
newell