Executions for behaviour:
"0:R0=0 ; 1:R0=1 ; 1:R1=0 ; 2:R1=0 ; ok=1 ; x=1 ; y=2"
ARM WRW+WR+poaa+dmb+A "RfeAA PodRWAA WseANa DMBdWR FreNaA" Cycle=RfeAA PodRWAA WseANa DMBdWR FreNaA Prefetch=1:x=F,1:y=W,2:y=F,2:x=T Com=Rf Ws Fr Orig=RfeAA PodRWAA WseANa DMBdWR FreNaA { ok=1; %x0=x; %ok0=ok; %x1=x; %y1=y; %ok1=ok; %y2=y; %x2=x; } P0 | P1 | P2 ; MOV %T3,#1 | LDREX R0,[%x1] | MOV R0,#2 ; LDREX R0,[%x0] | STREX %T2,R0,[%x1] | STR R0,[%y2] ; STREX %T2,%T3,[%x0] | CMP %T2,#0 | DMB ; CMP %T2,#0 | BNE Fail1 | LDR R1,[%x2] ; BNE Fail0 | MOV %T3,#1 | ; B Exit0 | LDREX R1,[%y1] | ; Fail0: | STREX %T2,%T3,[%y1] | ; MOV R1,#0 | CMP %T2,#0 | ; STR R1,[%ok0] | BNE Fail1 | ; Exit0: | B Exit1 | ; | Fail1: | ; | MOV R2,#0 | ; | STR R2,[%ok1] | ; | Exit1: | ; Observed 0:R0=0; 1:R0=1; 1:R1=0; 2:R1=0; ok=1; x=1; y=2;