PPC MP+lwsync+fri-rfi-ctrlisync "LwSyncdWW Rfe Fri Rfi DpCtrlIsyncdR Fre" Prefetch=1:x=T Com=Rf Fr Orig=LwSyncdWW Rfe Fri Rfi DpCtrlIsyncdR Fre { 0:r2=x; 0:r4=y; 1:r2=y; 1:r6=x; } P0 | P1 ; li r1,1 | lwz r1,0(r2) ; stw r1,0(r2) | li r3,2 ; lwsync | stw r3,0(r2) ; li r3,1 | lwz r4,0(r2) ; stw r3,0(r4) | cmpw r4,r4 ; | beq LC00 ; | LC00: ; | isync ; | lwz r5,0(r6) ; exists (y=2 /\ 1:r1=1 /\ 1:r4=2 /\ 1:r5=0)