dosseg
.model small
.data
arr1 db '1', '2', '3'

.stack 100h
.code

main proc

mov ax, @data
mov ds, ax
mov si, offset arr1

mov ah, 2
mov cx, 3

L1:
mov dx, [si]
int 21h
mov dx, 10
int 21h
mov dx, 13
int 21h

inc si

Loop L1

mov ah, 4ch
int 21h

main endp
end main