how can i display the output?
Code:
.model small
.stack
.data
	msg db "ENTER FIRST NUMBER: $"
	msg2 db "ENTER SECOND NUMBER: $"
	
	num1 db 0
	num2 db 0
	num3 db 0
.code
start:
	mov ax, @data
	mov ds, ax
	
	proc main
	call read
	call newline
	mov ax, 4c00h
	int 21h
	endp
	
	proc READ
	lea dx, msg
	mov ah, 09h
	int 21h
	
	mov ah, 01h
	int 21h
	sub al, 30h
	mov num1, al
	
	call newline
	
	lea dx, msg2
	mov ah, 09h
	int 21h
	
	mov ah, 01h
	int 21h
	sub al, 30h
	mov num2, al
	
	mov al, num1
	add al, num2
	mov ah, 02h
	mov dl, al
	int 21h
	ret
	endp
	
	proc newline
	mov ah, 02h
	mov dl, 0ah
	int 21h
	ret
	endp

end