ARM WRR+2W+dmbrna+poana "RfeNaR DMBdRRRNa FreNaA PodWWANa Wse" Cycle=RfeNaR DMBdRRRNa FreNaA PodWWANa Wse Prefetch=1:x=F,1:y=T,2:y=F,2:x=W Com=Rf Fr Ws Orig=RfeNaR DMBdRRRNa FreNaA PodWWANa Wse { ok=1; %x0=x; %x1=x; %y1=y; %y2=y; %x2=x; %ok2=ok; } P0 | P1 | P2 ; MOV R0,#2 | LDREX R0,[%x1] | MOV %T3,#1 ; STR R0,[%x0] | DMB | LDREX R0,[%y2] ; | LDR R1,[%y1] | STREX %T2,%T3,[%y2] ; | | CMP %T2,#0 ; | | BNE Fail2 ; | | MOV R1,#1 ; | | STR R1,[%x2] ; | | B Exit2 ; | | Fail2: ; | | MOV R2,#0 ; | | STR R2,[%ok2] ; | | Exit2: ; Observed 1:R0=1; 1:R1=0; 2:R0=0; ok=1; x=1; y=1; and 1:R0=1; 1:R1=0; 2:R0=0; ok=1; x=2; y=1; and 1:R0=2; 1:R1=0; 2:R0=0; ok=1; x=2; y=1;