PPC WRW+WR+lwsync+syncpr+A "RfeAP LwSyncdRW Wse SyncdWRPR FreRA" Cycle=RfeAP LwSyncdRW Wse SyncdWRPR FreRA Prefetch=0:x=T,1:y=W,2:y=F,2:x=T Com=Rf Ws Fr Orig=RfeAP LwSyncdRW Wse SyncdWRPR FreRA { ok=1; 0:r2=x; 0:r4=ok; 1:r2=x; 1:r4=y; 2:r2=y; 2:r4=x; } P0 | P1 | P2 ; li r1,1 | lwz r1,0(r2) | li r1,2 ; lwarx %sta,r0,r2 | lwsync | stw r1,0(r2) ; stwcx. r1,r0,r2 | li r3,1 | sync ; bne Fail0 | stw r3,0(r4) | lwarx r3,r0,r4 ; b Exit0 | | ; Fail0: | | ; li r3,0 | | ; stw r3,0(r4) | | ; Exit0: | | ; exists (ok=1 /\ y=2 /\ 1:r1=1 /\ 2:r3=0)