Messages in this thread | | | Date | Sat, 12 Jan 2002 06:31:36 +0000 | From | Pavel Machek <> | Subject | Re: [Q] Looking for an emulation for CMOV* instructions. |
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Hi!
> > 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. > > One corner case where emulation would IMHO make sense would be CMPXCHG8. > It would allow to do efficient inline mutexes in pthreads, and hit the > emulation only on 386/486. cpu feature flag checking is unfortunately > not an option normally for inline code. > > -Andi (who would have already done it if he had an 486/386 to test)
Do you want one? I have elonex, which is 486sx, small and quiet (needs NFS root). But I'd want it back eventually. Or I might be able to get you some 386... Pavel -- Philips Velo 1: 1"x4"x8", 300gram, 60, 12MB, 40bogomips, linux, mutt, details at http://atrey.karlin.mff.cuni.cz/~pavel/velo/index.html.
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