PPC aclwdrr014
"Fre LwSyncsWW Rfe LwSyncdRR Fre Rfe LwSyncdRR"
Cycle=Fre LwSyncsWW Rfe LwSyncdRR Fre Rfe LwSyncdRR
Relax=ACLwSyncdRR
Safe=Fre LwSyncsWW
{
0:r2=y;
1:r2=y; 1:r4=x;
2:r2=x;
3:r2=x; 3:r4=y;
}
P0 | P1 | P2 | P3 ;
li r1,1 | lwz r1,0(r2) | li r1,1 | lwz r1,0(r2) ;
stw r1,0(r2) | lwsync | stw r1,0(r2) | lwsync ;
lwsync | lwz r3,0(r4) | | lwz r3,0(r4) ;
li r3,2 | | | ;
stw r3,0(r2) | | | ;
exists
(y=2 /\ 1:r1=2 /\ 1:r3=0 /\ 3:r1=1 /\ 3:r3=0)