PPC WRW+WR+lwsyncra+syncpa "RfePR LwSyncdRWRA WseAP SyncdWRPA FreAP" Cycle=RfePR LwSyncdRWRA WseAP SyncdWRPA FreAP Prefetch=0:x=T,1:y=W,2:y=F,2:x=T Com=Rf Ws Fr Orig=RfePR LwSyncdRWRA WseAP SyncdWRPA FreAP { 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 r1,1 | lwarx r1,r0,r2 | li r1,2 ; stw r1,0(r2) | lwsync | stw r1,0(r2) ; | li r3,1 | sync ; | lwarx %sta,r0,r4 | lwarx r3,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 /\ y=2 /\ 1:r1=1 /\ 2:r3=0)