PPC bcssrw019 "DpdR SyncsRW Wse SyncsWR DpdR SyncsRW Rfe" Cycle=DpdR SyncsRW Wse SyncsWR DpdR SyncsRW Rfe Relax=BCSyncsRW Safe=Wse SyncsWR SyncsRW DpdR { 0:r2=x; 0:r6=y; 1:r2=y; 1:r5=x; } P0 | P1 ; li r1,2 | lwz r1,0(r2) ; stw r1,0(r2) | xor r3,r1,r1 ; sync | lwzx r4,r3,r5 ; lwz r3,0(r2) | sync ; xor r4,r3,r3 | li r6,1 ; lwzx r5,r4,r6 | stw r6,0(r5) ; sync | ; li r7,1 | ; stw r7,0(r6) | ; exists (x=2 /\ 0:r3=2 /\ 0:r5=0 /\ 1:r1=1 /\ 1:r4=0)