ARM ISA2+dsb.st+dmb.st+dsb
"DSB.STdWW Rfe DMB.STdRW Rfe DSBdRR Fre"
Cycle=Rfe DMB.STdRW Rfe DSBdRR Fre DSB.STdWW
Prefetch=0:x=F,0:y=W,1:y=F,1:z=W,2:z=F,2:x=T
Com=Rf Rf Fr
Orig=DSB.STdWW Rfe DMB.STdRW Rfe DSBdRR Fre
{
%x0=x; %y0=y;
%y1=y; %z1=z;
%z2=z; %x2=x;
}
P0 | P1 | P2 ;
MOV R0,#1 | LDR R0,[%y1] | LDR R0,[%z2] ;
STR R0,[%x0] | DMB ST | DSB ;
DSB ST | MOV R1,#1 | LDR R1,[%x2] ;
MOV R1,#1 | STR R1,[%z1] | ;
STR R1,[%y0] | | ;
Observed
1:R0=1; 2:R0=1; 2:R1=0;