Hi! On Wed, May 30, 2018 at 04:11:50PM +0800, Simon Guo wrote: > On Mon, May 28, 2018 at 05:35:12AM -0500, Segher Boessenkool wrote: > > On Fri, May 25, 2018 at 12:07:33PM +0800, wei.guo.si...@gmail.com wrote: > > If this doesn't use cr0 anymore, you can do rlwinm r6,r6,0,7 instead of > > andi r6,r6,7 . > > > CR0 is used at .Lno_short handling.
Tricky. > > > + subfc. r5,r6,r5 > > > > Why subfc? You don't use the carry. > OK. I will use subfc instead. I meant subf -- no carry. If you want CR0 set there is subf. just fine. > > > + bgt cr0,8f > > > + li r3,-1 > > > +8: > > > + blr > > > > blelr > > li r3,-1 > > blr > Sure. That looks more impact. Should have been bgtlr of course -- well check please :-) Segher
