On Fri, Aug 1, 2008 at 3:25 PM, Mark Marshall <[EMAIL PROTECTED]> wrote:
> Another question with this sort of setup is to do with the motherboard > copying the VGA BIOS from ROM into RAM and calling the initialization > function - does this happen for each VGA separately? What does it do with > the memory from the first when it calls the second? > > I'm not sure where this sort of stuff is specified, any ideas? Somehow, I had gotten the impression that the VGA BIOS goes in a fixed location in the lower 1 meg, and that only the BIOS from the main console gets shadowed there. Other VGA cards are treated like generic PCI devices, having their BARs assigned space (if that's enabled in the BIOS config), but with memory space decode disabled, and the PROM is pretty-much ignored. -- Timothy Normand Miller http://www.cse.ohio-state.edu/~millerti Open Graphics Project _______________________________________________ Open-graphics mailing list [email protected] http://lists.duskglow.com/mailman/listinfo/open-graphics List service provided by Duskglow Consulting, LLC (www.duskglow.com)
