PPC acsdrw031 "Wse SyncdWR Fre Rfe SyncdRW" Cycle=Wse SyncdWR Fre Rfe SyncdRW Relax=ACSyncdRW Safe=Fre Wse SyncdWR { 0:r2=y; 0:r4=x; 1:r2=x; 2:r2=x; 2:r4=y; } P0 | P1 | P2 ; li r1,2 | li r1,1 | lwz r1,0(r2) ; stw r1,0(r2) | stw r1,0(r2) | sync ; sync | | li r3,1 ; lwz r3,0(r4) | | stw r3,0(r4) ; exists (y=2 /\ 0:r3=0 /\ 2:r1=1)