我编了个程，要输出200*150的结果，可是运行却出现divide overflow.
请问哪里错了。data segment
a dw 200
b dw 150
string db '200*150='
db '$'
data ends
code segment
assume cs:code,ds:data
start:
mov ax,data
mov ds,ax
mov dx,offset string
mov ah,09h
int 21h
mov bx,a
mov cx,b
mov ax,0
lop1:add ax,bx
loop lop1
s:mov bx,0 ；不断将ax除于0，判断余数属否为零
mov cl,10
div cl
mov bl,ah
add bx,30h
mov dx,bx
mov ah,02h
int 21h
cmp al,0
jnz s
mov ah,4ch
int 21h

code ends
end start

我现在将程序改成这样，可还是不行。不知为什么？
data segment
a dw 200
b dw 150
string db '200*150='
db '$'
data ends
stack1 segment
dw 100 dup(?)
stack1 ends
code segment
assume cs:code,ds:data,ss:stack1
start:
mov ax,stack1
mov ss,ax
mov ax,data
mov ds,ax
mov ax,0
mov dx,offset string
mov ah,09h
int 21h
mov bx,a
mov cx,b
mov ax,0
lop1:add ax,bx
loop lop1
s:mov bl,10
div bl
mov bl,ah
mov bh,0
push bx ；将余数入栈
mov ah,0
cmp al,0 ；判断商是否为0
jnz s
mov cx,5
l1:pop bx ；将各余数依次出栈
mov dl,bh
add dl,30h
mov ah,02h
int 21h
loop l1
hlt

code ends
end start

[此贴子已经被作者于2007-1-6 21:25:05编辑过]