PPC bclwdww010
"DpsR Fre LwSyncdWW Wse LwSyncdWW Rfe"
Cycle=DpsR Fre LwSyncdWW Wse LwSyncdWW Rfe
Relax=BCLwSyncdWW
Safe=Fre Wse LwSyncdWW DpsR
{
0:r2=y; 0:r4=x;
1:r2=x; 1:r4=y;
2:r2=y;
}
P0 | P1 | P2 ;
li r1,2 | li r1,2 | lwz r1,0(r2) ;
stw r1,0(r2) | stw r1,0(r2) | xor r3,r1,r1 ;
lwsync | lwsync | lwzx r4,r3,r2 ;
li r3,1 | li r3,1 | ;
stw r3,0(r4) | stw r3,0(r4) | ;
exists
(x=2 /\ y=2 /\ 2:r1=1 /\ 2:r4=1)