> But the VGA BIOS is only used for mode setup, any program that uses int 10h for the
> actual pixel drawing would be too slow to use on *any* system...

And for Textmode-Operation.
During boot I would expect at least MS-DOS to use the BIOS to write to
screen.

On 32Bit OS the BIOS-Performance should be meaningless since there
should be an 32Bit driver used instead. The Disk-BIOS is also used as
an last choice only.

Elmar

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