Run IRWIW+lwsync+po in model, using ppcmem
PPC IRWIW+lwsync+po "Rfe LwSyncdRW Wse Rfe PodRW Wse" Cycle=Rfe PodRW Wse Rfe LwSyncdRW Wse { 0:r2=x; 1:r2=x; 1:r4=y; 2:r2=y; 3:r2=y; 3:r4=x; } P0 | P1 | P2 | P3 ; li r1,2 | lwz r1,0(r2) | li r1,2 | lwz r1,0(r2) ; stw r1,0(r2) | lwsync | stw r1,0(r2) | li r3,1 ; | li r3,1 | | stw r3,0(r4) ; | stw r3,0(r4) | | ; exists (x=2 /\ y=2 /\ 1:r1=2 /\ 3:r1=2)