PPC WRW+2W+addraa+sync+A "RfeAA DpAddrdWAA WseAP SyncdWW WsePA" Cycle=RfeAA DpAddrdWAA WseAP SyncdWW WsePA Prefetch=0:x=F,1:y=W,2:y=F,2:x=W Com=Rf Ws Ws Orig=RfeAA DpAddrdWAA WseAP SyncdWW WsePA { ok=1; 0:r2=x; 0:r4=ok; 1:r2=x; 1:r5=y; 1:r7=ok; 2:r2=y; 2:r4=x; } P0 | P1 | P2 ; li r1,2 | lwarx r1,r0,r2 | li r1,2 ; lwarx %sta,r0,r2 | stwcx. r1,r0,r2 | stw r1,0(r2) ; stwcx. r1,r0,r2 | bne Fail1 | sync ; bne Fail0 | xor r3,r1,r1 | li r3,1 ; b Exit0 | li r4,1 | stw r3,0(r4) ; Fail0: | lwarx %sta,r3,r5 | ; li r3,0 | stwcx. r4,r3,r5 | ; stw r3,0(r4) | bne Fail1 | ; Exit0: | b Exit1 | ; | Fail1: | ; | li r6,0 | ; | stw r6,0(r7) | ; | Exit1: | ; exists (ok=1 /\ x=2 /\ y=2 /\ 1:r1=2)