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SubjectRe: [Q] Looking for an emulation for CMOV* instructions.
Date
On Friday, 11. January 2002 00:28, Alan Cox wrote:
> > is it possible to include an emulation for the CMOV* (and possible other
> > i686 instructions) for processors that dont have these (k6, pentium
> > etc.)? I think this should work like the fpu emulation. Even if its slow
>
> The kernel isnt there to fix up the fact authors can't read. Its also very
> hard to get emulations right. I grant that this wasn't helped by the fact
> the gcc x86 folks also couldnt read the pentium pro manual correctly.

But it shouldn't crash, if the wrong architecture is chosen. (Different
problem, I know) Perfect solution would be emulate them all, but at least
an simple error message (please eject CPU, and put in a XXX one) would be
sufficient, IMHO.

> If you have a static linked program install the right version. RPMv4
> even knows about cmov and i686 rpms.

Hans-Peter
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