PPC RWC+sync+rfi-addr "Rfe SyncdRR Fre Rfi DpAddrdR Fre" Prefetch=0:x=T,1:y=T,2:x=T Com=Rf Fr Fr Orig=Rfe SyncdRR Fre Rfi DpAddrdR Fre { 0:r2=x; 1:r2=x; 1:r4=y; 2:r2=y; 2:r6=x; } P0 | P1 | P2 ; li r1,1 | lwz r1,0(r2) | li r1,1 ; stw r1,0(r2) | sync | stw r1,0(r2) ; | lwz r3,0(r4) | lwz r3,0(r2) ; | | xor r4,r3,r3 ; | | lwzx r5,r4,r6 ; exists (1:r1=1 /\ 1:r3=0 /\ 2:r3=1 /\ 2:r5=0)