> also if there is any reference to the gnu asm symtax, please send me a
> pointer..
There's lots
> i can understand what the LOCK "incl %0 means.. but not sure what the rest
> is for.
LOCK just means the x86 "lock" prefix.
incl is the 32-bit version of "inc" (incremement)
You want to return the variable? Try this:
static __inline__ unsigned long atomic_inc(atomic_t *v)
{
__asm__ __volatile__(
LOCK "incl %0"
:"=m" (v->counter)
:"m" (v->counter));
return v->counter;
}
-- Timur Tabi - ttabi@interactivesi.com Interactive Silicon - http://www.interactivesi.com- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/