Re: NOP instruction

Alexander Kjeldaas (astor@guardian.no)
Wed, 16 Dec 1998 12:23:52 +0100

On Tue, Dec 15, 1998 at 06:05:48PM +0000, H. Peter Anvin wrote:
>
> Long time has passed since the 8086. Don't be surprised if some of
> the x86 series chips optimize NOP.
>

A lot of different NOPs of various lengths are optimized away AFAIK.
However, I'm not sure that very complex NOPs that trigger the "complex
instruction" decoder (found in most recent x86 chips) are worth using
though.

astor

-- 
 Alexander Kjeldaas, Guardian Networks AS, Trondheim, Norway
 http://www.guardian.no/


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