assume cs:codesg
data segment
db '1975','1976','1977','1978','1979','1980','1981','1982','1983'
db '1984','1985','1986','1987','1988','1989','1990','1991','1992'
db '1993','1994','1995'
dd 16,22,382,1356,2390,8000,16000,24486,50065,97479,140417,197514
dd 345980,590827,803530,1183000,1843000,2759000,3753000,4649000,5937000
dw 3,7,9,13,28,38,130,220,476,778,1001,1442,2258,2793,4037,5635,8226
dw 11542,14430,15257,17800
data ends
table segment
db 21 dup ('year summ ne ?? ')
table ends
codesg segment
start: mov ax,data
mov ds,ax
mov ax,table
mov es,ax
mov bx,0
mov si,0
mov di,168
mov cx,21
s:mov ax,[bx+2]
mov es:[si+2],ax
mov ax,[bx]
mov es:[si],ax
mov byte ptr es:[si+4],20h
mov ax,[bx+84]
mov es:[si+5],ax
mov ax,[bx+86]
mov es:[si+7],ax
mov byte ptr es:[si+9],20h
mov ax,[di]
mov es:[si+10],ax
mov byte ptr es:[si+12],20h
mov ax,[bx+84]
mov dx,[bx+86]
mov cx,[di]
div cx
mov es:[si+13],ax
mov byte ptr es:[si+0fh],20h
add bx,4
add di,2
add si,16
loop s
mov ax,4c00h
int 21h
codesg ends
end start
这段代码会出现除法溢出，把标红的部分（mov cx,[di]；div cx）改为 div word ptr [di]就不会有溢出，这是什么问题？
已经对dx进行了赋值，应该不存在未初始化的问题啊
请大神们帮帮忙
------解决思路----------------------
你这里使用了 cx 又没有进行保存恢复的保护，下面的 loop 的依据不就被毁了么？