Practica suma dos números 20-02-2019

Código:

name "Suma de dos numeros"
include "emu8086.inc"
org 100h

.data
suma db 2 dup (?)

.code
Sumas proc
print " "
print "Introduce el primer numero ==) "
call scan_num
mov suma[0],cl
print " "
print "Introduce el segundo numero ==) "
call scan_num
mov suma[1],cl
print " "
xor ax,ax
add al,suma[0]
add al,suma[1]
print " "
print "La suma es: "
call print_num
Sumas endp

exit:
printn " "
printn " "
print "Presiona enter para salir..."
mov ah,0
int 16h
ret
define_print_string
define_print_num
define_print_num_uns
define_scan_num
end