PPC safe561 "Rfe SyncdRW Rfe SyncsRW Rfe SyncdRW Rfe SyncsRW" Cycle=Rfe SyncdRW Rfe SyncsRW Rfe SyncdRW Rfe SyncsRW Relax= Safe=ACSyncsRW ACSyncdRW { 0:r2=y; 0:r4=x; 1:r2=x; 2:r2=x; 2:r4=y; 3:r2=y; } P0 | P1 | P2 | P3 ; lwz r1,0(r2) | lwz r1,0(r2) | lwz r1,0(r2) | lwz r1,0(r2) ; sync | sync | sync | sync ; li r3,1 | li r3,2 | li r3,1 | li r3,2 ; stw r3,0(r4) | stw r3,0(r2) | stw r3,0(r4) | stw r3,0(r2) ; exists (x=2 /\ y=2 /\ 0:r1=2 /\ 1:r1=1 /\ 2:r1=2 /\ 3:r1=1)