PPC rfe006 "DpdR Fre Rfe DpdR Fre Rfe" Cycle=DpdR Fre Rfe DpdR Fre Rfe Relax=Rfe Safe=Fre DpdR { 0:r2=x; 0:r5=y; 1:r2=y; 2:r2=y; 2:r5=x; 3:r2=x; } P0 | P1 | P2 | P3 ; lwz r1,0(r2) | li r1,1 | lwz r1,0(r2) | li r1,1 ; xor r3,r1,r1 | stw r1,0(r2) | xor r3,r1,r1 | stw r1,0(r2) ; lwzx r4,r3,r5 | | lwzx r4,r3,r5 | ; exists (0:r1=1 /\ 0:r4=0 /\ 2:r1=1 /\ 2:r4=0)