PPC bcssrw009 "LwSyncdRR Fre SyncsWR DpdR SyncsRW Rfe SyncsRW Rfe" Cycle=LwSyncdRR Fre SyncsWR DpdR SyncsRW Rfe SyncsRW Rfe Relax=BCSyncsRW Safe=Fre SyncsWR LwSyncdRR DpdR { 0:r2=x; 0:r6=y; 1:r2=y; 2:r2=y; 2:r4=x; } P0 | P1 | P2 ; li r1,1 | lwz r1,0(r2) | lwz r1,0(r2) ; stw r1,0(r2) | sync | lwsync ; sync | li r3,2 | lwz r3,0(r4) ; lwz r3,0(r2) | stw r3,0(r2) | ; xor r4,r3,r3 | | ; lwzx r5,r4,r6 | | ; sync | | ; li r7,1 | | ; stw r7,0(r6) | | ; exists (y=2 /\ 0:r3=1 /\ 0:r5=0 /\ 1:r1=1 /\ 2:r1=2 /\ 2:r3=0)