Executions for behaviour:
"1:r1=1 ; 1:r3=0"

PPC MP
"PodWW Rfe PodRR Fre"
Cycle=Rfe PodRR Fre PodWW
Prefetch=0:x=F,0:y=W,1:y=F,1:x=T
Com=Rf Fr
Orig=PodWW Rfe PodRR Fre
{
0:r2=x; 0:r4=y;
1:r2=y; 1:r4=x;
}
P0 | P1 ;
li r1,1 | lwz r1,0(r2) ;
stw r1,0(r2) | lwz r3,0(r4) ;
li r3,1 | ;
stw r3,0(r4) | ;
exists
(1:r1=1 /\ 1:r3=0)