PPC LB+ctrlra+isync "DpCtrldWRA RfeAP ISyncdRW RfePR" Cycle=RfeAP ISyncdRW RfePR DpCtrldWRA Prefetch= Com=Rf Rf Orig=DpCtrldWRA RfeAP ISyncdRW RfePR { ok=1; 0:r2=x; 0:r4=y; 0:r6=ok; 1:r2=y; 1:r4=x; } P0 | P1 ; lwarx r1,r0,r2 | lwz r1,0(r2) ; cmpw r1,r1 | isync ; beq LC00 | li r3,1 ; LC00: | stw r3,0(r4) ; li r3,1 | ; lwarx %sta,r0,r4 | ; stwcx. r3,r0,r4 | ; bne Fail0 | ; b Exit0 | ; Fail0: | ; li r5,0 | ; stw r5,0(r6) | ; Exit0: | ; exists (ok=1 /\ 0:r1=1 /\ 1:r1=1)