PPC WRC+ctrlra+addrra "RfePR DpCtrldWRA RfeAR DpAddrdRRA FreAP" Cycle=RfeAR DpAddrdRRA FreAP RfePR DpCtrldWRA Prefetch=0:x=T,2:x=T Com=Rf Rf Fr Orig=RfePR DpCtrldWRA RfeAR DpAddrdRRA FreAP { ok=1; 0:r2=x; 1:r2=x; 1:r4=y; 1:r6=ok; 2:r2=y; 2:r5=x; 2:r7=ok; } P0 | P1 | P2 ; li r1,1 | lwarx r1,r0,r2 | lwarx r1,r0,r2 ; stw r1,0(r2) | cmpw r1,r1 | xor r3,r1,r1 ; | beq LC00 | lwarx r4,r3,r5 ; | LC00: | stwcx. r4,r3,r5 ; | li r3,1 | bne Fail2 ; | lwarx %sta,r0,r4 | b Exit2 ; | stwcx. r3,r0,r4 | Fail2: ; | bne Fail1 | li r6,0 ; | b Exit1 | stw r6,0(r7) ; | Fail1: | Exit2: ; | li r5,0 | ; | stw r5,0(r6) | ; | Exit1: | ; exists (ok=1 /\ 1:r1=1 /\ 2:r1=1 /\ 2:r4=0)