ARM DETOUR0889
"DMBdWW Wse PosWR Fri PodWR Fre"
Cycle=Fri PodWR Fre DMBdWW Wse PosWR
Prefetch=0:x=F,0:y=W,1:y=F,1:x=T
Com=Ws Fr
Orig=DMBdWW Wse PosWR Fri PodWR Fre
{
%x0=x; %y0=y;
%y1=y; %x1=x;
}
P0 | P1 ;
MOV R0,#1 | MOV R0,#2 ;
STR R0,[%x0] | STR R0,[%y1] ;
DMB | LDR R1,[%y1] ;
MOV R1,#1 | MOV R2,#3 ;
STR R1,[%y0] | STR R2,[%y1] ;
DMB | LDR R3,[%x1] ;
LDR R2,[%y0] | ;
Observed
0:R2=3; 1:R1=1; 1:R3=0;
and 0:R2=3; 1:R1=1; 1:R3=1;