PPC S+lwsyncpa+popa "LwSyncdWWPA RfeAP PodRWPA WseAP" Cycle=RfeAP PodRWPA WseAP LwSyncdWWPA Prefetch=0:x=F,1:x=W Com=Rf Ws Orig=LwSyncdWWPA RfeAP PodRWPA WseAP { ok=1; 0:r2=x; 0:r4=y; 0:r6=ok; 1:r2=y; 1:r4=x; 1:r6=ok; } P0 | P1 ; li r1,2 | lwz r1,0(r2) ; stw r1,0(r2) | li r3,1 ; lwsync | lwarx %sta,r0,r4 ; li r3,1 | stwcx. r3,r0,r4 ; lwarx %sta,r0,r4 | bne Fail1 ; stwcx. r3,r0,r4 | b Exit1 ; bne Fail0 | Fail1: ; b Exit0 | li r5,0 ; Fail0: | stw r5,0(r6) ; li r5,0 | Exit1: ; stw r5,0(r6) | ; Exit0: | ; exists (ok=1 /\ x=2 /\ 1:r1=1)