[fpc-pascal] Cmpxchg

[Werner Van Belle]

Jonas Maebe wrote:
>
> On 31 Mar 2010, at 16:13, Werner Van Belle wrote:
>
>> I have been browsing the web somewhat to figure out how I can have
>> access to a cmpxchg function in freepascal. At the momente I found very
>> little information. Some references on people arguing that this is
>> unnecessary. Others that it takes too much time etcetera. In any case: I
>> _really_ want to have access to a cmpxchg function and tried to find
>> information on the assembler routines on how to get access to such
>> function.
>
> The function you want is InterlockedCompareExchange(), which is
> defined in the system unit:
> http://www.freepascal.org/docs-html/rtl/system/interlockedcompareexchange.html
>
>
> It does what cmpxchg does, and moreover is cross-platform.
Cool !!! Thanks a lot for the info. This is exactly what I was looking for !

-- 
http://werner.yellowcouch.org/


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