ARM IRRWIW+dmb.st+dsb.st
"Rfe DMB.STdRR Fre Rfe DSB.STdRW Wse"
Cycle=Rfe DMB.STdRR Fre Rfe DSB.STdRW Wse
Prefetch=0:x=F,1:x=F,1:y=T,2:y=T,3:y=F,3:x=W
Com=Rf Fr Rf Ws
Orig=Rfe DMB.STdRR Fre Rfe DSB.STdRW Wse
{
%x0=x;
%x1=x; %y1=y;
%y2=y;
%y3=y; %x3=x;
}
P0 | P1 | P2 | P3 ;
MOV R0,#2 | LDR R0,[%x1] | MOV R0,#1 | LDR R0,[%y3] ;
STR R0,[%x0] | DMB ST | STR R0,[%y2] | DSB ST ;
| LDR R1,[%y1] | | MOV R1,#1 ;
| | | STR R1,[%x3] ;
Observed
1:R0=1; 1:R1=0; 3:R0=1; x=1;
and 1:R0=1; 1:R1=0; 3:R0=1; x=2;
and 1:R0=2; 1:R1=0; 3:R0=1; x=2;