
PPC posrr009
"Fre SyncdWW Rfe DpdR Fre SyncdWW Rfe PosRR"
Cycle=Fre SyncdWW Rfe DpdR Fre SyncdWW Rfe PosRR
Relax=PosRR
Safe=Fre DpdR BCSyncdWW
{
0:r2=z; 0:r4=x;
1:r2=x; 1:r5=y;
2:r2=y; 2:r4=z;
3:r2=z;
}
P0 | P1 | P2 | P3 ;
li r1,2 | lwz r1,0(r2) | li r1,1 | lwz r1,0(r2) ;
stw r1,0(r2) | xor r3,r1,r1 | stw r1,0(r2) | lwz r3,0(r2) ;
sync | lwzx r4,r3,r5 | sync | ;
li r3,1 | | li r3,1 | ;
stw r3,0(r4) | | stw r3,0(r4) | ;
exists
(z=2 /\ 1:r1=1 /\ 1:r4=0 /\ 3:r1=1 /\ 3:r3=1)