ARM ISA2+dsb+isb+ctrlisb "DSBdWW Rfe ISBdRW Rfe DpCtrlIsbdR Fre" Cycle=Rfe ISBdRW Rfe DpCtrlIsbdR Fre DSBdWW Prefetch=0:x=F,0:y=W,1:y=F,1:z=W,2:z=F,2:x=T Com=Rf Rf Fr Orig=DSBdWW Rfe ISBdRW Rfe DpCtrlIsbdR Fre { %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] | ISB | CMP R0,R0 ; DSB | MOV R1,#1 | BNE LC00 ; MOV R1,#1 | STR R1,[%z1] | LC00: ; STR R1,[%y0] | | ISB ; | | LDR R1,[%x2] ; Observed 1:R0=1; 2:R0=1; 2:R1=0;