Executions for behaviour:
"0:R0=1 ; 0:R2=0 ; 1:R0=1 ; 1:R1=0 ; ok=1 ; x=1 ; y=1"
ARM LB+addrnaa+pora
"DpAddrdWNaA RfeAR PodRWRA RfeANa"
Cycle=RfeANa DpAddrdWNaA RfeAR PodRWRA
Prefetch=0:x=F,0:y=W,1:y=F,1:x=W
Com=Rf Rf
Orig=DpAddrdWNaA RfeAR PodRWRA RfeANa
{ ok=1;
%x0=x; %y0=y; %ok0=ok;
%y1=y; %x1=x; %ok1=ok;
}
P0 | P1 ;
LDR R0,[%x0] | LDREX R0,[%y1] ;
EOR R1,R0,R0 | MOV %T3,#1 ;
ADD %T1,R1,%y0 | LDREX R1,[%x1] ;
MOV %T3,#1 | STREX %T2,%T3,[%x1] ;
LDREX R2,[%T1] | CMP %T2,#0 ;
STREX %T2,%T3,[%T1] | BNE Fail1 ;
CMP %T2,#0 | B Exit1 ;
BNE Fail0 | Fail1: ;
B Exit0 | MOV R2,#0 ;
Fail0: | STR R2,[%ok1] ;
MOV R3,#0 | Exit1: ;
STR R3,[%ok0] | ;
Exit0: | ;
Observed
0:R0=1; 0:R2=0; 1:R0=1; 1:R1=0; ok=1; x=1; y=1;