ARM WRC+dataaa+addrnaa "RfeNaA DpDatadWAA RfeANa DpAddrdRNaA FreANa" Cycle=RfeNaA DpDatadWAA RfeANa DpAddrdRNaA FreANa Prefetch=1:x=F,1:y=W,2:y=F,2:x=T Com=Rf Rf Fr Orig=RfeNaA DpDatadWAA RfeANa DpAddrdRNaA FreANa { ok=1; %x0=x; %x1=x; %y1=y; %ok1=ok; %y2=y; %x2=x; %ok2=ok; } P0 | P1 | P2 ; MOV R0,#1 | LDREX R0,[%x1] | LDR R0,[%y2] ; STR R0,[%x0] | STREX %T2,R0,[%x1] | EOR R1,R0,R0 ; | CMP %T2,#0 | ADD %T1,R1,%x2 ; | BNE Fail1 | LDREX R2,[%T1] ; | EOR R1,R0,R0 | STREX %T2,R2,[%T1] ; | ADD R1,R1,#1 | CMP %T2,#0 ; | LDREX R2,[%y1] | BNE Fail2 ; | STREX %T2,R1,[%y1] | B Exit2 ; | CMP %T2,#0 | Fail2: ; | BNE Fail1 | MOV R3,#0 ; | B Exit1 | STR R3,[%ok2] ; | Fail1: | Exit2: ; | MOV R3,#0 | ; | STR R3,[%ok1] | ; | Exit1: | ; Observed 1:R0=1; 1:R2=0; 2:R0=1; 2:R2=0; ok=0; x=1; y=1; and 1:R0=1; 1:R2=0; 2:R0=1; 2:R2=0; ok=1; x=1; y=1;