Test WRW+WR+ctrl+dsb

ARM WRW+WR+ctrl+dsb
"Rfe DpCtrldW Wse DSBdWR Fre"
Cycle=Rfe DpCtrldW Wse DSBdWR Fre
Prefetch=0:x=T,1:x=F,1:y=W,2:y=F,2:x=T
Com=Rf Ws Fr
Orig=Rfe DpCtrldW Wse DSBdWR Fre
{
%x0=x;
%x1=x; %y1=y;
%y2=y; %x2=x;
}
 P0           | P1           | P2           ;
 MOV R0,#1    | LDR R0,[%x1] | MOV R0,#2    ;
 STR R0,[%x0] | CMP R0,R0    | STR R0,[%y2] ;
              | BNE LC00     | DSB          ;
              | LC00:        | LDR R1,[%x2] ;
              | MOV R1,#1    |              ;
              | STR R1,[%y1] |              ;
Observed
    1:R0=1; 2:R1=0; y=2;