PPC WRR+2W+poaa+popa+A
"RfeAA PodRRAA FreAP PodWWPA WseAA"
Cycle=RfeAA PodRRAA FreAP PodWWPA WseAA
Prefetch=0:x=F,1:y=T,2:x=W
Com=Rf Fr Ws
Orig=RfeAA PodRRAA FreAP PodWWPA WseAA
{ ok=1;
0:r2=x; 0:r4=ok;
1:r2=x; 1:r4=y; 1:r6=ok;
2:r2=y; 2:r4=x; 2:r6=ok;
}
P0 | P1 | P2 ;
li r1,2 | lwarx r1,r0,r2 | li r1,1 ;
lwarx %sta,r0,r2 | stwcx. r1,r0,r2 | stw r1,0(r2) ;
stwcx. r1,r0,r2 | bne Fail1 | li r3,1 ;
bne Fail0 | lwarx r3,r0,r4 | lwarx %sta,r0,r4 ;
b Exit0 | stwcx. r3,r0,r4 | stwcx. r3,r0,r4 ;
Fail0: | bne Fail1 | bne Fail2 ;
li r3,0 | b Exit1 | b Exit2 ;
stw r3,0(r4) | Fail1: | Fail2: ;
Exit0: | li r5,0 | li r5,0 ;
| stw r5,0(r6) | stw r5,0(r6) ;
| Exit1: | Exit2: ;
exists
(ok=1 /\ x=2 /\ 1:r1=2 /\ 1:r3=0)