PPC W+RW+RR+WR+poaas+A "RfeAA PodRWAA RfeAA PodRRAA FreAA PodWRAA FreAA" Prefetch=0:x=T,2:z=T,3:x=T Com=Rf Rf Fr Fr Orig=RfeAA PodRWAA RfeAA PodRRAA FreAA PodWRAA FreAA { ok=1; 0:r2=x; 0:r4=ok; 1:r2=x; 1:r4=y; 1:r6=ok; 2:r2=y; 2:r4=z; 2:r6=ok; 3:r2=z; 3:r4=x; 3:r6=ok; } P0 | P1 | P2 | P3 ; li r1,1 | lwarx r1,r0,r2 | lwarx r1,r0,r2 | li r1,1 ; lwarx %sta,r0,r2 | stwcx. r1,r0,r2 | stwcx. r1,r0,r2 | lwarx %sta,r0,r2 ; stwcx. r1,r0,r2 | bne Fail1 | bne Fail2 | stwcx. r1,r0,r2 ; bne Fail0 | li r3,1 | lwarx r3,r0,r4 | bne Fail3 ; b Exit0 | lwarx %sta,r0,r4 | stwcx. r3,r0,r4 | lwarx r3,r0,r4 ; Fail0: | stwcx. r3,r0,r4 | bne Fail2 | stwcx. r3,r0,r4 ; li r3,0 | bne Fail1 | b Exit2 | bne Fail3 ; stw r3,0(r4) | b Exit1 | Fail2: | b Exit3 ; Exit0: | Fail1: | li r5,0 | Fail3: ; | li r5,0 | stw r5,0(r6) | li r5,0 ; | stw r5,0(r6) | Exit2: | stw r5,0(r6) ; | Exit1: | | Exit3: ; ~exists (ok=1 /\ 1:r1=1 /\ 2:r1=1 /\ 2:r3=0 /\ 3:r3=0)