ARM IRIW+dmb+addr "Rfe DMBdRR Fre Rfe DpAddrdR Fre" Cycle=Rfe DMBdRR Fre Rfe DpAddrdR Fre { %x0=x; %x1=x; %y1=y; %y2=y; %y3=y; %x3=x; } P0 | P1 | P2 | P3 ; MOV R0, #1 | LDR R0, [%x1] | MOV R0, #1 | LDR R0, [%y3] ; STR R0, [%x0] | DMB | STR R0, [%y2] | EOR R1,R0,R0 ; | LDR R1, [%y1] | | LDR R2, [R1,%x3] ; Observed 1:R0=1; 1:R1=0; 3:R0=1; 3:R2=0;