PPC safe226 "SyncdWR Fre SyncdWR Fre Rfe SyncdRW Wse" Cycle=SyncdWR Fre SyncdWR Fre Rfe SyncdRW Wse Relax= Safe=Fre Wse SyncdWR ACSyncdRW { 0:r2=x; 0:r4=y; 1:r2=y; 2:r2=y; 2:r4=z; 3:r2=z; 3:r4=x; } P0 | P1 | P2 | P3 ; li r1,1 | li r1,1 | lwz r1,0(r2) | li r1,2 ; stw r1,0(r2) | stw r1,0(r2) | sync | stw r1,0(r2) ; sync | | li r3,1 | sync ; lwz r3,0(r4) | | stw r3,0(r4) | lwz r3,0(r4) ; exists (z=2 /\ 0:r3=0 /\ 2:r1=1 /\ 3:r3=0)