PPC WRR+2W+syncap+lwsync "RfePA SyncdRRAP Fre LwSyncdWW Wse" Cycle=RfePA SyncdRRAP Fre LwSyncdWW Wse Prefetch=0:x=F,1:y=T,2:x=W Com=Rf Fr Ws Orig=RfePA SyncdRRAP Fre LwSyncdWW Wse { ok=1; 0:r2=x; 1:r2=x; 1:r4=y; 1:r6=ok; 2:r2=y; 2:r4=x; } P0 | P1 | P2 ; li r1,2 | lwarx r1,r0,r2 | li r1,1 ; stw r1,0(r2) | stwcx. r1,r0,r2 | stw r1,0(r2) ; | bne Fail1 | lwsync ; | sync | li r3,1 ; | lwz r3,0(r4) | stw r3,0(r4) ; | b Exit1 | ; | Fail1: | ; | li r5,0 | ; | stw r5,0(r6) | ; | Exit1: | ; exists (ok=1 /\ x=2 /\ 1:r1=2 /\ 1:r3=0)