PPC WRW+WR+popa+popr "Rfe PodRWPA WseAP PodWRPR FreRP" Cycle=Rfe PodRWPA WseAP PodWRPR FreRP Prefetch=0:x=T,1:y=W,2:y=F,2:x=T Com=Rf Ws Fr Orig=Rfe PodRWPA WseAP PodWRPR FreRP { ok=1; 0:r2=x; 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) | li r1,2 ; stw r1,0(r2) | li r3,1 | stw r1,0(r2) ; | lwarx %sta,r0,r4 | lwarx r3,r0,r4 ; | stwcx. r3,r0,r4 | ; | bne Fail1 | ; | b Exit1 | ; | Fail1: | ; | li r5,0 | ; | stw r5,0(r6) | ; | Exit1: | ; exists (ok=1 /\ y=2 /\ 1:r1=1 /\ 2:r3=0)