** Reply to message from "Raj, Ashok" <[EMAIL PROTECTED]> on Mon, 18 Jun 2001
15:56:50 -0700
> 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 - [EMAIL PROTECTED]
Interactive Silicon - http://www.interactivesi.com
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