help, intel ym430tx new bios locked amd processor

Only for programmers and BIOS gurus with technical questions.
cp
BIOS Guru
Posts: 1914
Joined: Mon Oct 21, 2002 9:07 pm
Location: Germany

hmm, okay, family/model/stepping. thanks apple_rom for disassembling and looking into the code :)
ie
BIOS Newbie
Posts: 22
Joined: Thu Mar 24, 2005 3:07 pm

cp wrote:ie: do you have another non-Intel processor somewhere? something like a Cyrix, Rise or IDT/Centaur cpu? if so please do run a test if it boots up with one of those.

my suggestion: look for a cpuid instruction. cpuid with EAX=0 returns the vendor id in EBX-ECX-EDX. if it's not GenuineIntel (or rather 'uneGletnIeni' imho that really hurts) just stop..but that's pure guesswork :)
I found a cyrix, also locked.thanks
ie
BIOS Newbie
Posts: 22
Joined: Thu Mar 24, 2005 3:07 pm

Thanks a lot for Apple_Rom,
I modified the bios, it success by pass the CPU detection,
before modify, debug card show 0d, then stop at 0E,
after modify,debug card pass 0E, then 31, and so on.
Will try more and email the modified bios to Jan for archive,
thanks a lot
Last edited by ie on Sat Sep 22, 2007 8:13 am, edited 1 time in total.
ie
BIOS Newbie
Posts: 22
Joined: Thu Mar 24, 2005 3:07 pm

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