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Re: cmpxchgl on x86?
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Re: cmpxchgl on x86?

  • Subject: Re: cmpxchgl on x86?
  • From: Andrew Gallatin <email@hidden>
  • Date: Thu, 23 Jun 2005 14:08:37 -0400 (EDT)
Matt Watson writes:
 > > Can somebody tell me what I'm doing wrong, please?
 >
 > Try putting a / after the lock.

Thanks..  lock; cmpxchgl  seemed to do the trick.

 >
 > Also, there are compare-and-swap routines already in libSystem:
 >

Yes, but this code already compiles on Linux, FreeBSD, and
Solaris/x86, and that's just the x86 OSes.  The last thing I want is
to add another ifdef.

Thanks for the asm tip!

Drew
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References: 
 >cmpxchgl on x86? (From: Andrew Gallatin <email@hidden>)
 >Re: cmpxchgl on x86? (From: Matt Watson <email@hidden>)

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