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SubjectRe: Pentium 4 and 2.4/2.5
Date
From
> On Wed, 8 Nov 2000, Alan Cox wrote:
>
> > What state does it leave the condition codes ? That matters.
>
> Alan, rep ; nop is one of the suggested 2 byte fillers in the Athon
> optimization guide; it's handled during instruction decode and is
> completely free. It also has no effect on K6s.

Ok. Issue settled. So 'rep nop' is safe. Ok that can get into the spinlocks
for 2.2.18


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