ARM Z6.1+dsb.st+dmb+isb "DSB.STdWW Wse DMBdWW Rfe ISBdRW Wse" Cycle=Rfe ISBdRW Wse DSB.STdWW Wse DMBdWW Prefetch=0:x=F,0:y=W,1:y=F,1:z=W,2:z=F,2:x=W Com=Ws Rf Ws Orig=DSB.STdWW Wse DMBdWW Rfe ISBdRW Wse { %x0=x; %y0=y; %y1=y; %z1=z; %z2=z; %x2=x; } P0 | P1 | P2 ; MOV R0,#2 | MOV R0,#2 | LDR R0,[%z2] ; STR R0,[%x0] | STR R0,[%y1] | ISB ; DSB ST | DMB | MOV R1,#1 ; MOV R1,#1 | MOV R1,#1 | STR R1,[%x2] ; STR R1,[%y0] | STR R1,[%z1] | ; Observed 2:R0=1; x=2; y=2;