Run SB+dmb+po in model, using armmem
ARM SB+dmb+po "DMBdWR Fre PodWR Fre" Cycle=Fre PodWR Fre DMBdWR { %x0=x; %y0=y; %y1=y; %x1=x; } P0 | P1 ; MOV R0, #1 | MOV R0, #1 ; STR R0, [%x0] | STR R0, [%y1] ; DMB | LDR R1, [%x1] ; LDR R1, [%y0] | ; exists (0:R1=0 /\ 1:R1=0)