ARM ISA2+dmb+ctrlisb+isb "DMBdWW Rfe DpCtrlIsbdW Rfe ISBdRR Fre" Cycle=Rfe ISBdRR Fre DMBdWW Rfe DpCtrlIsbdW { %x0=x; %y0=y; %y1=y; %z1=z; %z2=z; %x2=x; } P0 | P1 | P2 ; MOV R0, #1 | LDR R0, [%y1] | LDR R0, [%z2] ; STR R0, [%x0] | CMP R0, R0 | ISB ; DMB | BNE LC00 | LDR R1, [%x2] ; MOV R1, #1 | LC00: | ; STR R1, [%y0] | ISB | ; | MOV R1, #1 | ; | STR R1, [%z1] | ; Observed 1:R0=1; 2:R0=1; 2:R1=0;