Framebuffer or standard VGA ?
Ronald G Minnich
rminnich at lanl.gov
Wed Sep 11 10:40:00 CEST 2002
On Wed, 11 Sep 2002, Peter Stuge wrote:
> This is the case. The way you reset a VGA card is to far call the real mode
> address 0xc000:3. This is what the system BIOS does pretty early on, before
> saying anything to anyone looking at the screen. Try starting debug.exe in
> MS-DOS and enter
> a 100
> call c000:3
> <blank line>
yes. we have code in linuxbios and a user-mode emulator to do this.
> Unfortunately, yes.
> The problem is that video BIOSes run in real mode and tend to rely on legacy
> system BIOS services.
I've done bits of it.
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