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data segment
english db 'abcdabcda'
sun db 'cd',':$'
count db 30h
data ends
code segment
assume cs:code,ds:data
start: mov ax,data
mov ds,ax
mov es,ax
lea si,english
lea di,sun
mov cx,9
B:push cx
mov cx,2
D:mov al,ds:[si]
push si
cmp al,es:[di]
jne A
inc si
inc di
loop D
inc count
lea di,sun
A:pop si
pop cx
inc si
loop B
lea dx,sun
mov ah,09h
int 21h
mov dl,count
mov ah,02h
int 21h
mov ax,4c00h
int 21h
code ends
end start