Executions for behaviour:
"1:R0=1 ; 1:R2=2 ; 1:R3=2 ; x=2 ; y=2"

ARM S+dmb+fri-rfi-pos-addr-pos-addr
"DMBdWW Rfe Fri Rfi PosRR DpAddrdR PosRR DpAddrdW Wse"
Cycle=Rfi PosRR DpAddrdR PosRR DpAddrdW Wse DMBdWW Rfe Fri
Prefetch=0:x=F,0:y=W,1:y=F,1:x=W
Com=Rf Ws
Orig=DMBdWW Rfe Fri Rfi PosRR DpAddrdR PosRR DpAddrdW Wse
{
%x0=x; %y0=y;
%y1=y; %z1=z; %x1=x;
}
P0 | P1 ;
MOV R0,#2 | LDR R0,[%y1] ;
STR R0,[%x0] | MOV R1,#2 ;
DMB | STR R1,[%y1] ;
MOV R1,#1 | LDR R2,[%y1] ;
STR R1,[%y0] | LDR R3,[%y1] ;
| EOR R4,R3,R3 ;
| LDR R5,[R4,%z1] ;
| LDR R6,[%z1] ;
| EOR R7,R6,R6 ;
| MOV R8,#1 ;
| STR R8,[R7,%x1] ;
Observed
1:R0=1; 1:R2=2; 1:R3=2; x=2; y=2;