PPC acsdrr033 "Fre SyncdWR Fre SyncsWW Rfe SyncdRR" Cycle=Fre SyncdWR Fre SyncsWW Rfe SyncdRR Relax=ACSyncdRR Safe=Fre SyncsWW SyncdWR { 0:r2=y; 0:r4=x; 1:r2=x; 2:r2=x; 2:r4=y; } P0 | P1 | P2 ; li r1,1 | li r1,1 | lwz r1,0(r2) ; stw r1,0(r2) | stw r1,0(r2) | sync ; sync | sync | lwz r3,0(r4) ; lwz r3,0(r4) | li r3,2 | ; | stw r3,0(r2) | ; exists (x=2 /\ 0:r3=0 /\ 2:r1=2 /\ 2:r3=0)