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stack segment stack para 'stack' stack
db 128 dup( ? )
stack ends
code segment
assume cs:code, ds:code, es:code
start:
mov ax, 0b800h
mov ds, ax
mov es, ax
mov si, 0
mov cx, 100
again:
mov byte ptr [si], '='
inc si
mov byte ptr [si], 15
inc si
loop again
mov ah, 4ch
int 21h
code ends
end start