asci code ADDition and with single 2 value

; You may customize this and other start-up templates;
; The location of this template is c:\emu8086\inc\0_com_template.txt

org 100h

; add your code here

 .data
 msg db  0ah,0dh,"boom boom  enter 3 input $"

 c1 db ?
 c2 db ?

 sum db ? ,'$'

 .code


 mov ax,@data
 mov DS,ax

 mov ah,2
 mov dl,'?'
 int 21h

 mov ah,1
 int 21h
 mov c1,al

 int 21h
 mov c2,al


 add al,c1
 sub al,30h
 mov sum,al

  mov ah,9
 lea dx,sum

 int 21h

 mov ah,4ch
 int 21h





ret