Executions for behaviour:
"0:r1=1 ; 1:r1=1 ; ok=1"
PPC LB+addr+isyncra "DpAddrdW RfePR ISyncdRWRA RfeAP" Cycle=RfeAP DpAddrdW RfePR ISyncdRWRA Prefetch= Com=Rf Rf Orig=DpAddrdW RfePR ISyncdRWRA RfeAP { ok=1; 0:r2=x; 0:r5=y; 1:r2=y; 1:r4=x; 1:r6=ok; } P0 | P1 ; lwz r1,0(r2) | lwarx r1,r0,r2 ; xor r3,r1,r1 | isync ; li r4,1 | li r3,1 ; stwx r4,r3,r5 | lwarx %sta,r0,r4 ; | stwcx. r3,r0,r4 ; | bne Fail1 ; | b Exit1 ; | Fail1: ; | li r5,0 ; | stw r5,0(r6) ; | Exit1: ; Observed 0:r1=1; 1:r1=1; ok=1;