Executions for behaviour:
"0:R0=1 ; 1:R0=2 ; ok=1 ; x=2 ; y=2"
ARM WRW+2W+addrrna+dmb+A "RfeAR DpAddrdWRNa Wse DMBdWW WseNaA" Cycle=RfeAR DpAddrdWRNa Wse DMBdWW WseNaA Prefetch=1:x=F,1:y=W,2:y=F,2:x=W Com=Rf Ws Ws Orig=RfeAR DpAddrdWRNa Wse DMBdWW WseNaA { ok=1; %x0=x; %ok0=ok; %x1=x; %y1=y; %y2=y; %x2=x; } P0 | P1 | P2 ; MOV %T3,#2 | LDREX R0,[%x1] | MOV R0,#2 ; LDREX R0,[%x0] | EOR R1,R0,R0 | STR R0,[%y2] ; STREX %T2,%T3,[%x0] | MOV R2,#1 | DMB ; CMP %T2,#0 | STR R2,[R1,%y1] | MOV R1,#1 ; BNE Fail0 | | STR R1,[%x2] ; B Exit0 | | ; Fail0: | | ; MOV R1,#0 | | ; STR R1,[%ok0] | | ; Exit0: | | ; Observed 0:R0=1; 1:R0=2; ok=1; x=2; y=2;