[fpc-devel] membar instruction
Dariusz Mazur
darekm at emadar.com
Sat Feb 23 19:52:18 CET 2008
Micha Nelissen pisze:
> Dariusz Mazur wrote:
>
>> Hi
>> is there in FPC a membar instruction, like #StoreLoad macro or smp_mb();
>>
>
> ReadBarrier, ReadDependencyBarrier, ReadWriteBarrier, WriteBarrier; in
> system unit.
>
thx
>
>> and second need instruction is NOOP
>>
>
> 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)
Darek
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