On Tue, 22 Feb 2000, Chong Chee Yong wrote:
If the system BIOS has to initialise the graphics chipset using codes from itself (instead of the usual call to the graphics chipset BIOS), then the system BIOS becomes less generic, probably customised for the motherboard-graphics chip combination. I'm not sure if this would be the usual case as it seems less cost-effective, because everytime the graphics chip changes architecturally, the system BIOS has to change.
The system bios is a bit different for every motherboard type. There are lots of subtle differences between these motherboards and each one requires tweaks.
Example: the c440gx and l440gx+ motherboards are incredibly similar (check them out on intel.com). They have different BIOSes.
Thanks for the ROM base address info. This could be useful.
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