Test RDW

Executions for behaviour: "1:R1=2 ; 1:R2=0 ; 1:R3=0 ; 1:R4=1"

ARM RDW ()
"RDW"
{
P1:R6=x; P1:R7=y; P1:R8=z;
P0:R7=y; P0:R8=z;
P2:R6=x;
}
P0           |P1             |P2           ;
mov R1,1     |ldr R1,R7      |mov R1,1     ;
str R1,R8    |and R9,R1,#0   |str R1,R6    ;
dmb          |ldr R3,[R9,R6] |             ;
mov R2,2     |ldr R4,R6      |             ;
str R2,R7    |and R10,R4,#0  |             ;
             |ldr R2,[R10,R8]|             ;

exists 1:R1=2 /\ 1:R2=0 /\ 1:R3=0 /\ 1:R4=1