PPC W+RWC+rfipr-datarp+lwsync+sync "RfiPR DpDatadWRP Rfe LwSyncdRR Fre SyncdWR Fre" Prefetch=1:z=T,2:x=T Com=Rf Fr Fr Orig=RfiPR DpDatadWRP Rfe LwSyncdRR Fre SyncdWR Fre { 0:r2=x; 0:r5=y; 1:r2=y; 1:r4=z; 2:r2=z; 2:r4=x; } P0 | P1 | P2 ; li r1,1 | lwz r1,0(r2) | li r1,1 ; stw r1,0(r2) | lwsync | stw r1,0(r2) ; lwarx r3,r0,r2 | lwz r3,0(r4) | sync ; xor r4,r3,r3 | | lwz r3,0(r4) ; addi r4,r4,1 | | ; stw r4,0(r5) | | ; exists (0:r3=1 /\ 1:r1=1 /\ 1:r3=0 /\ 2:r3=0)