PPC IRIW+lwsyncra+lwsyncaa+PA "RfePR LwSyncdRRRA FreAA RfeAA LwSyncdRRAA FreAP" Cycle=RfeAA LwSyncdRRAA FreAP RfePR LwSyncdRRRA FreAA Prefetch=0:x=T,1:y=T,2:y=T,3:x=T Com=Rf Fr Rf Fr Orig=RfePR LwSyncdRRRA FreAA RfeAA LwSyncdRRAA FreAP { ok=1; 0:r2=x; 1:r2=x; 1:r4=y; 1:r6=ok; 2:r2=y; 2:r4=ok; 3:r2=y; 3:r4=x; 3:r6=ok; } P0 | P1 | P2 | P3 ; li r1,1 | lwarx r1,r0,r2 | li r1,1 | lwarx r1,r0,r2 ; stw r1,0(r2) | lwsync | lwarx %sta,r0,r2 | stwcx. r1,r0,r2 ; | lwarx r3,r0,r4 | stwcx. r1,r0,r2 | bne Fail3 ; | stwcx. r3,r0,r4 | bne Fail2 | lwsync ; | bne Fail1 | b Exit2 | lwarx r3,r0,r4 ; | b Exit1 | Fail2: | stwcx. r3,r0,r4 ; | Fail1: | li r3,0 | bne Fail3 ; | li r5,0 | stw r3,0(r4) | b Exit3 ; | stw r5,0(r6) | Exit2: | Fail3: ; | Exit1: | | li r5,0 ; | | | stw r5,0(r6) ; | | | Exit3: ; exists (ok=1 /\ 1:r1=1 /\ 1:r3=0 /\ 3:r1=1 /\ 3:r3=0)