PPC LB+data+isync "DpDatadW Rfe ISyncdRW Rfe" Cycle=Rfe ISyncdRW Rfe DpDatadW Prefetch= Com=Rf Rf Orig=DpDatadW Rfe ISyncdRW Rfe { 0:r2=x; 0:r4=y; 1:r2=y; 1:r4=x; } P0 | P1 ; lwz r1,0(r2) | lwz r1,0(r2) ; xor r3,r1,r1 | isync ; addi r3,r3,1 | li r3,1 ; stw r3,0(r4) | stw r3,0(r4) ; exists (0:r1=1 /\ 1:r1=1)