
PPC LB0081
"DpDatadW Rfe PosRR PodRW PosWW Rfe"
Cycle=Rfe PosRR PodRW PosWW Rfe DpDatadW
Relax=[Rfe,DpDatadW,Rfe]
Safe=PosWW PosRR PodRW
Prefetch=0:x=F,0:y=W,1:y=F,1:x=W
Com=Rf Rf
Orig=DpDatadW Rfe PosRR PodRW PosWW Rfe
{
0:r2=x; 0:r4=y;
1:r2=y; 1:r5=x;
}
P0 | P1 ;
lwz r1,0(r2) | lwz r1,0(r2) ;
xor r3,r1,r1 | lwz r3,0(r2) ;
addi r3,r3,1 | li r4,1 ;
stw r3,0(r4) | stw r4,0(r5) ;
| li r6,2 ;
| stw r6,0(r5) ;
Observed
0:r1=1; 1:r1=1; x=2;
and 0:r1=2; 1:r1=1; x=2;