汇编程序：输出对应的英文单词

assume cs:code, ss:stack
stack segment
db 100H dup (?)
stack ends
code  segment
start:
jmp beg
digittab dw zero,one,two,three,four,five,six,seven,eight,nine
zero  db 'zero',10,13,'$'
one   db 'one',10,13,'$'
two   db 'two',10,13,'$'
three db 'three',10,13,'$'
four  db 'four',10,13,'$'
five  db 'five',10,13,'$'
six   db 'six',10,13,'$'
seven db 'seven',10,13,'$'
eight db 'eight',10,13,'$'
nine  db 'nine',10,13,'$'
beg:
push cs
pop ds

input:

;击键盘上的一个数字键
mov ah,0
int 16h

;如果是0就退出，否则显示对应的英文单词
sub al, 30h
cmp al, 0
je stop
mov bl, al
mov bh, 0
add bx,bx
mov dx, word ptr digittab[bx]
mov ah,9
int 21h

jmp input

stop:
mov ah,4ch
int 21h
code  ends
end start