PPC WRC+popa+ctrl+A
"RfeAP PodRWPA RfeAP DpCtrldR FrePA"
Cycle=RfeAP PodRWPA RfeAP DpCtrldR FrePA
Prefetch=0:x=T,2:x=T
Com=Rf Rf Fr
Orig=RfeAP PodRWPA RfeAP DpCtrldR FrePA
{ ok=1;
0:r2=x; 0:r4=ok;
1:r2=x; 1:r4=y; 1:r6=ok;
2:r2=y; 2:r4=x;
}
P0 | P1 | P2 ;
li r1,1 | lwz r1,0(r2) | lwz r1,0(r2) ;
lwarx %sta,r0,r2 | li r3,1 | cmpw r1,r1 ;
stwcx. r1,r0,r2 | lwarx %sta,r0,r4 | beq LC00 ;
bne Fail0 | stwcx. r3,r0,r4 | LC00: ;
b Exit0 | bne Fail1 | lwz r3,0(r4) ;
Fail0: | b Exit1 | ;
li r3,0 | Fail1: | ;
stw r3,0(r4) | li r5,0 | ;
Exit0: | stw r5,0(r6) | ;
| Exit1: | ;
exists
(ok=1 /\ 1:r1=1 /\ 2:r1=1 /\ 2:r3=0)