Executions for behaviour:
"1:r1=2 ; ok=1 ; x=2 ; y=2"
PPC WRW+2W+addraa+syncap "RfePA DpAddrdWAA WseAA SyncdWWAP Wse" Cycle=RfePA DpAddrdWAA WseAA SyncdWWAP Wse Prefetch=0:x=F,1:y=W,2:y=F,2:x=W Com=Rf Ws Ws Orig=RfePA DpAddrdWAA WseAA SyncdWWAP Wse { ok=1; 0:r2=x; 1:r2=x; 1:r5=y; 1:r7=ok; 2:r2=y; 2:r4=x; 2:r6=ok; } P0 | P1 | P2 ; li r1,2 | lwarx r1,r0,r2 | li r1,2 ; stw r1,0(r2) | stwcx. r1,r0,r2 | lwarx %sta,r0,r2 ; | bne Fail1 | stwcx. r1,r0,r2 ; | xor r3,r1,r1 | bne Fail2 ; | li r4,1 | sync ; | lwarx %sta,r3,r5 | li r3,1 ; | stwcx. r4,r3,r5 | stw r3,0(r4) ; | bne Fail1 | b Exit2 ; | b Exit1 | Fail2: ; | Fail1: | li r5,0 ; | li r6,0 | stw r5,0(r6) ; | stw r6,0(r7) | Exit2: ; | Exit1: | ; Observed 1:r1=2; ok=1; x=2; y=2;