PPC WRW+2W+syncpa+popa "Rfe SyncdRWPA WseAP PodWWPA WseAP" Cycle=Rfe SyncdRWPA WseAP PodWWPA WseAP Prefetch=0:x=F,1:y=W,2:y=F,2:x=W Com=Rf Ws Ws Orig=Rfe SyncdRWPA WseAP PodWWPA WseAP { ok=1; 0:r2=x; 1:r2=x; 1:r4=y; 1:r6=ok; 2:r2=y; 2:r4=x; 2:r6=ok; } P0 | P1 | P2 ; li r1,2 | lwz r1,0(r2) | li r1,2 ; stw r1,0(r2) | sync | stw r1,0(r2) ; | li r3,1 | li r3,1 ; | lwarx %sta,r0,r4 | lwarx %sta,r0,r4 ; | stwcx. r3,r0,r4 | stwcx. r3,r0,r4 ; | bne Fail1 | bne Fail2 ; | b Exit1 | b Exit2 ; | Fail1: | Fail2: ; | li r5,0 | li r5,0 ; | stw r5,0(r6) | stw r5,0(r6) ; | Exit1: | Exit2: ; exists (ok=1 /\ x=2 /\ y=2 /\ 1:r1=2)