PPC safe161 "Rfe SyncdRR Fre SyncdWR Fre LwSyncdWW Wse" Cycle=Rfe SyncdRR Fre SyncdWR Fre LwSyncdWW Wse Relax= Safe=Fre Wse SyncdWR LwSyncdWW ACSyncdRR { 0:r2=z; 0:r4=x; 1:r2=x; 1:r4=y; 2:r2=y; 2:r4=z; 3:r2=z; } P0 | P1 | P2 | P3 ; lwz r1,0(r2) | li r1,1 | li r1,1 | li r1,2 ; sync | stw r1,0(r2) | stw r1,0(r2) | stw r1,0(r2) ; lwz r3,0(r4) | sync | lwsync | ; | lwz r3,0(r4) | li r3,1 | ; | | stw r3,0(r4) | ; exists (z=2 /\ 0:r1=2 /\ 0:r3=0 /\ 1:r3=0)