[fpc-devel] membar instruction

Micha Nelissen micha at neli.hopto.org
Sat Feb 23 20:09:47 CET 2008

Dariusz Mazur wrote:
>> Don't know about this one, can't you use a do nothing loop?
> in spin-lock there is NOOP used, I think that is instruction, that every
> processor do nothing but not avoid (duration is very small but not zero)

Why do you use a NOP in a spin-lock?


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