VGABIOS

[Eric W. Biederman]

Li-Ta Lo <ollie at lanl.gov> writes:

> On Mon, 2005-02-07 at 10:16, Richard Smith wrote:
> > > The emulator is slightly larger than 32KB. For the Tyan S2885
> > > mainboard, the difference of the final romimage is 41376 bytes.
> > > 
> > > Actuall, it is for uncompress romimage. For compressed image,
> > > it is about 16KB.
> > > 
> > 
> > Wow.  I didn't realize that the Linuxbios verison would compile down
> > and compress so small.  If you apply Paulos work to all that it might
> > get a lot smaller.  I remember Paulo saying that there was lots of
> > code duplication in the x86 instruction emulation that could be
> > consolidated.
> 
> It is Paulo's work.

A small addendum to this thread.  ACPI 3.0 specifies a _ROM method
to read the video ROM from onboard video devices that store the _ROM in
a proprietary format and cannot be read from the PCI ROM bar.

Which seems to answer the question how does windows read that :)

Eric