
PPC WRR+2W+addrar+poaa
"RfePA DpAddrdRAR FreRA PodWWAA WseAP"
Cycle=RfePA DpAddrdRAR FreRA PodWWAA WseAP
Prefetch=0:x=F,1:y=T,2:x=W
Com=Rf Fr Ws
Orig=RfePA DpAddrdRAR FreRA PodWWAA WseAP
{ 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 r1,1 ;
stw r1,0(r2) | stwcx. r1,r0,r2 | lwarx %sta,r0,r2 ;
| bne Fail1 | stwcx. r1,r0,r2 ;
| xor r3,r1,r1 | bne Fail2 ;
| lwarx r4,r3,r5 | li r3,1 ;
| b Exit1 | lwarx %sta,r0,r4 ;
| Fail1: | stwcx. r3,r0,r4 ;
| li r6,0 | bne Fail2 ;
| stw r6,0(r7) | b Exit2 ;
| Exit1: | Fail2: ;
| | li r5,0 ;
| | stw r5,0(r6) ;
| | Exit2: ;
exists
(ok=1 /\ x=2 /\ 1:r1=2 /\ 1:r4=0)