Resource Allocation for Option Rom
Eric W. Biederman
ebiederman at lnxi.com
Fri May 28 22:07:01 CEST 2004
Stefan Reinauer <stepan at openbios.org> writes:
> * ron minnich <rminnich at lanl.gov> [040527 23:21]:
> > again, you do not need to map option roms at 0c0000 in the emulator!
> > Map it anywhere, tell the emulator the location, and the emulator can
> > satisfy memory "fetches" for c0000 by fetching from that location.
> indeed true. But for x86 hardware, putting all of the x86 emulator in
> rom is less elegant than vm86 stuff, even though I have no clue about
> the later.
Last I heard some Option Roms switch to 32bit mode. You can't do
that in vm86 mode. In general using vm86 is a way to put your fate
in someone else's hands.
We could possibly call the option roms directly but unless the space
cost is high an open source emulator is a good choice.
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