PPC S+popa+ctrlisyncra "PodWWPA RfeAR DpCtrlIsyncdWRA WseAP" Cycle=RfeAR DpCtrlIsyncdWRA WseAP PodWWPA Prefetch=0:x=F,1:x=W Com=Rf Ws Orig=PodWWPA RfeAR DpCtrlIsyncdWRA WseAP { ok=1; 0:r2=x; 0:r4=y; 0:r6=ok; 1:r2=y; 1:r4=x; 1:r6=ok; } P0 | P1 ; li r1,2 | lwarx r1,r0,r2 ; stw r1,0(r2) | cmpw r1,r1 ; li r3,1 | beq LC00 ; lwarx %sta,r0,r4 | LC00: ; stwcx. r3,r0,r4 | isync ; bne Fail0 | li r3,1 ; b Exit0 | lwarx %sta,r0,r4 ; Fail0: | stwcx. r3,r0,r4 ; li r5,0 | bne Fail1 ; stw r5,0(r6) | b Exit1 ; Exit0: | Fail1: ; | li r5,0 ; | stw r5,0(r6) ; | Exit1: ; exists (ok=1 /\ x=2 /\ 1:r1=1)