Executions for behaviour:
"0:R0=1 ; 0:R1=0 ; 1:R0=1 ; ok=1 ; x=2 ; y=1"
ARM S+poaa+ctrlana "PodWWAA RfeAA DpCtrldWANa WseNaA" Cycle=RfeAA DpCtrldWANa WseNaA PodWWAA Prefetch=0:x=F,0:y=W,1:y=F,1:x=W Com=Rf Ws Orig=PodWWAA RfeAA DpCtrldWANa WseNaA { ok=1; %x0=x; %y0=y; %ok0=ok; %y1=y; %x1=x; %ok1=ok; } P0 | P1 ; MOV %T3,#2 | LDREX R0,[%y1] ; LDREX R0,[%x0] | STREX %T2,R0,[%y1] ; STREX %T2,%T3,[%x0] | CMP %T2,#0 ; CMP %T2,#0 | BNE Fail1 ; BNE Fail0 | CMP R0,R0 ; MOV %T3,#1 | BNE LC00 ; LDREX R1,[%y0] | LC00: ; STREX %T2,%T3,[%y0] | MOV R1,#1 ; CMP %T2,#0 | STR R1,[%x1] ; BNE Fail0 | B Exit1 ; B Exit0 | Fail1: ; Fail0: | MOV R2,#0 ; MOV R2,#0 | STR R2,[%ok1] ; STR R2,[%ok0] | Exit1: ; Exit0: | ; Observed 0:R0=1; 0:R1=0; 1:R0=1; ok=1; x=2; y=1;