Re: Atomic operations

[Richard B. Johnson]

On Mon, 3 Jun 2002, Thunder from the hill wrote:

> Hi,
> 
> On Mon, 3 Jun 2002, Richard B. Johnson wrote:
> > atomic_t test_and_set(int i, atomic_t *v)
> > {
> >     int ret;
> > 
> >     __asm__ __volatile__(LOCK "movl (%1), %ecx\n"
> >                          LOCK "orl   %0,  (%1)\n" 
> > 	: "ecx" (ret) 
> > 	: "r" (i), "m" (v)
> > 	: "ecx", "memory" );
> > 
> >     return (ret & i);
> > }
> 
> I'm not an expert, but shouldn't "exc" be quoted here? I'm just 
                                    ecx 
                           Yes, we both make typos!
> wondering...

Cheers,
Dick Johnson

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