
ARM WRC+data+dsb.st
"Rfe DpDatadW Rfe DSB.STdRR Fre"
Cycle=Rfe DSB.STdRR Fre Rfe DpDatadW
Prefetch=0:x=T,1:x=F,1:y=W,2:y=F,2:x=T
Com=Rf Rf Fr
Orig=Rfe DpDatadW Rfe DSB.STdRR Fre
{
%x0=x;
%x1=x; %y1=y;
%y2=y; %x2=x;
}
P0 | P1 | P2 ;
MOV R0,#1 | LDR R0,[%x1] | LDR R0,[%y2] ;
STR R0,[%x0] | EOR R1,R0,R0 | DSB ST ;
| ADD R1,R1,#1 | LDR R1,[%x2] ;
| STR R1,[%y1] | ;
Observed
1:R0=1; 2:R0=1; 2:R1=0;