[LinuxBIOS] Advantech SOM-4455F

Peter Stuge stuge-linuxbios at cdy.org
Fri Jun 8 20:12:31 CEST 2007

Going back on list..

On Sat, Jun 09, 2007 at 12:07:39AM +0600, Richard Neill Dabney wrote:
> The illegal instruction is in the callbiosint16 function where CR0
> is loaded to turn of protected mode.


> I looked at the emulator code and sure enough, that sequence of
> 'movl %cr0,%eax' (0x0f, 0x20,0xc0) is illegal.
> It makes no sense. Did this ever work?

It does work for several other VGA BIOSes. They probably do not try
to switch to PM.

So I guess x86emu doesn't handle protected mode.

Could vm86 work instead of x86emu?


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