PPC W03 "PodWR Wre PodWR Wre PodWR Wre" {0:r2=z; 0:r4=x; 1:r2=x; 1:r4=y; 2:r2=y; 2:r4=z;} P0 | P1 | P2 ; li r1,1 | li r1,1 | li r1,1 ; stw r1,0(r2) | stw r1,0(r2) | stw r1,0(r2) ; lwsync | lwsync | lwsync ; lwz r3,0(r4) | lwz r3,0(r4) | lwz r3,0(r4) ; exists (0:r3=0 /\ 1:r3=0 /\ 2:r3=0)