[EMAIL PROTECTED] wrote:
>>> __asm__ __volatile__("lwz%U1%X1 %0,%1; twi 0,%0,0; isync" : "=r" (ret)
> :
>>> "m" (*addr));
>> They allow the compiler to use update and/or index mode for the memory
>> operand.
>
> Well that makes sense, U for update and X for index, but I'm not sure
> they're applicable to this particular instruction and I'm not sure that
> the memory operand makes sense for PowerPC.
Why not?
> However, before I post
> anything that makes me look like I've got hoof-n-mouth disease I'm going
> to do some more digging. Is the GCC manual the only "official"
> documentation on this (I've found a couple of web sites but none of them
> gun.org)
I believe so... other than the sources, of course. :-)
-Scott
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