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