学步园

从键盘输入两个十以内的数求和，并把和用十进制在显示器上将显示

data segment
x db ?
y db ?
data ends

code segment
main proc far
assume cs:code,ds:data
start:

push ds
sub ax,ax
push ax
mov ax,data
mov ds,ax

mov ah,01
int 21h
sub al,30h
mov x,al

mov ah,01
int 21h
sub al,30h
mov y,al

add al,x
mov dl,al
add dl,30h

mov ah,02
int 21h

ret
main endp
code ends
end start