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Re: AMD related

On Mon, 1 Oct 2001 16:53, Hamish Moffatt wrote:
> On Mon, Oct 01, 2001 at 10:28:52AM +0200, Allan Sandfeld Jensen wrote:
> > On Sunday 30 September 2001 18:59, Jeffrin Jose T. wrote:
> > >  So does it mean that all x86 instructions will work with AMD Duron ?
> >
> > That is Intel FUD (Fear, Uncertainty and Doubt)
> >
> >  Duron IS a x86 instruction just as Pentium III and IV is, no more, no
> > less!! Pentium IV has som extensions that a not pure x86, and
> > duron/athlon does not support those, but since PII doesnt either that
> > does not make Duron any less an x86 processors..
> >
> > AMD is just as compatible as Intel processors!! Not stop the f...ing
> > FUD!!
> I don't think it's as simple as that. What is "pure x86" any more?
> There was the plain old 486 instruction set. Intel added some Pentium
> extensions. Intel added MMX. AMD, Cyrix etc added MMX. AMD added 3D Now!
> I don't know if those original Pentium extensions ever made it into
> the others. So what's standard any more?

The Pentium has been out for 6 years now, I'm sure that AMD have reverse 
engineered all the instructions (they even boasted about hiring one of the 
Pentium design team away from Intel).

At the moment I still compile my kernels with "5x86" as the kernel type as I 
have an old AMD K6 (clone of the 486 instruction set).

I suggest that the thing to do if you REALLY want to know what happens with 
these things is to compile a kernel with each option in the kernel list and 
see which kernels can boot on which CPUs.

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