I need someone with an old timer to test this CPUID tester.

Started by hutch--, April 24, 2010, 12:29:19 PM

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dedndave

i see that some NexGen chips are the same way
so, we'd have to devise similar methods for those, as well
with NexGen, we probably don't have the 5/2 test - lol
again, the lack of complete documention is another problem to deal with
i haven't been able to find out, specifically, which Cyrix chips do and don't support CPUID disable
it's probably similar for NexGen
if you can get to ring 0, you might be able to just enable CPUID and cover all the bases
on the other hand, the bits you have to wiggle to do that may crash some other CPU   :bg

CPUID is not your friend

EDIT - if you notice, programs like CPU-Z employ a kernel mode driver
it's a shame you have to get to ring 0 to make good use of CPUID
it's also a shame we can't play with ring 0 in here
even if i have written a comprehensive CPU identification routine, i wouldn't be able to share it
i understand the reason for this, i just hate the way the "system" works - lol
one of the things i have always liked about asm was i got past "you can't do that"