PPC LB+addr+fri+ctrl "DpAddrdR Fri Rfe DpCtrldW Rfe" Prefetch= Com=Rf Rf Orig=DpAddrdR Fri Rfe DpCtrldW Rfe { 0:r2=x; 0:r5=y; 1:r2=y; 1:r4=x; } P0 | P1 ; lwz r1,0(r2) | lwz r1,0(r2) ; xor r3,r1,r1 | cmpw r1,r1 ; lwzx r4,r3,r5 | beq LC00 ; li r6,1 | LC00: ; stw r6,0(r5) | li r3,1 ; | stw r3,0(r4) ; exists (0:r1=1 /\ 0:r4=0 /\ 1:r1=1)