PPC safe360 "SyncsWR Fre SyncdWR Fre SyncdWR Fre" Cycle=SyncsWR Fre SyncdWR Fre SyncdWR Fre Relax= Safe=Fre SyncsWR SyncdWR { 0:r2=y; 0:r4=x; 1:r2=x; 1:r4=y; 2:r2=y; } P0 | P1 | P2 ; li r1,2 | li r1,1 | li r1,1 ; stw r1,0(r2) | stw r1,0(r2) | stw r1,0(r2) ; sync | sync | sync ; lwz r3,0(r4) | lwz r3,0(r4) | lwz r3,0(r2) ; exists (y=2 /\ 0:r3=0 /\ 1:r3=0 /\ 2:r3=1)