> > Shouldn't Athlons and AthlonXPs be able to use i686 (pentiumpro)
> > instruction set optimizations?
>No. They are different cpu cores that have different optimization
Yes, all Athlons can use i686 code while the k6's can't. Further, without
doing any scientific testing, I would think the Athlon would do better with
ppro optimized code than k6 optimized code thanks to the available i686
instructions. When GCC 3.0 is used, tho, this won't be an issue since it
supports optimizations for the Athlon.
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