PPC ISA2+sync+addr+wsi+ctrlisync "SyncdWW Rfe DpAddrdW Wsi Rfe DpCtrlIsyncdR Fre" Prefetch=2:x=T Com=Rf Rf Fr Orig=SyncdWW Rfe DpAddrdW Wsi Rfe DpCtrlIsyncdR Fre { 0:r2=x; 0:r4=y; 1:r2=y; 1:r5=z; 2:r2=z; 2:r4=x; } P0 | P1 | P2 ; li r1,1 | lwz r1,0(r2) | lwz r1,0(r2) ; stw r1,0(r2) | xor r3,r1,r1 | cmpw r1,r1 ; sync | li r4,1 | beq LC00 ; li r3,1 | stwx r4,r3,r5 | LC00: ; stw r3,0(r4) | li r6,2 | isync ; | stw r6,0(r5) | lwz r3,0(r4) ; exists (z=2 /\ 1:r1=1 /\ 2:r1=2 /\ 2:r3=0)