PPC LB+ctrlap+popa "DpCtrldWAP Rfe PodRWPA RfeAA" Cycle=RfeAA DpCtrldWAP Rfe PodRWPA Prefetch= Com=Rf Rf Orig=DpCtrldWAP Rfe PodRWPA RfeAA { ok=1; 0:r2=x; 0:r4=y; 0:r6=ok; 1:r2=y; 1:r4=x; 1:r6=ok; } P0 | P1 ; lwarx r1,r0,r2 | lwz r1,0(r2) ; stwcx. r1,r0,r2 | li r3,1 ; bne Fail0 | lwarx %sta,r0,r4 ; cmpw r1,r1 | stwcx. r3,r0,r4 ; beq LC00 | bne Fail1 ; LC00: | b Exit1 ; li r3,1 | Fail1: ; stw r3,0(r4) | li r5,0 ; b Exit0 | stw r5,0(r6) ; Fail0: | Exit1: ; li r5,0 | ; stw r5,0(r6) | ; Exit0: | ; exists (ok=1 /\ 0:r1=1 /\ 1:r1=1)