PPC Z6.2+sync+po+lwsync "SyncdWW Rfe PodRW Rfe LwSyncdRW Wse" Cycle=Rfe PodRW Rfe LwSyncdRW Wse SyncdWW { 0:r2=x; 0:r4=y; 1:r2=y; 1:r4=z; 2:r2=z; 2:r4=x; } P0 | P1 | P2 ; li r1,2 | lwz r1,0(r2) | lwz r1,0(r2) ; stw r1,0(r2) | li r3,1 | lwsync ; sync | stw r3,0(r4) | li r3,1 ; li r3,1 | | stw r3,0(r4) ; stw r3,0(r4) | | ; exists (x=2 /\ 1:r1=1 /\ 2:r1=1)