Run LB+ctrlisync+ctrl in model, using ppcmem
PPC LB+ctrlisync+ctrl "DpCtrlIsyncdW Rfe DpCtrldW Rfe" Cycle=Rfe DpCtrldW Rfe DpCtrlIsyncdW { 0:r2=x; 0:r4=y; 1:r2=y; 1:r4=x; } P0 | P1 ; lwz r1,0(r2) | lwz r1,0(r2) ; cmpw r1,r1 | cmpw r1,r1 ; beq LC00 | beq LC01 ; LC00: | LC01: ; isync | li r3,1 ; li r3,1 | stw r3,0(r4) ; stw r3,0(r4) | ; exists (0:r1=1 /\ 1:r1=1)