关于实验7 我写的汇编代码 出现Divide overflow

pro-serv

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 16,22,382,1356,2390,8000,24486,50065,97479,140417,197514
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
stack segment
dw 0,0,0,0,0,0,0,0
stack ends
codesg segment
start:
mov ax,stack
mov ss,ax
mov sp,16
mov ax,table
mov ds,ax
mov bx,0
mov ax,data
mov es,ax
mov bp,0
mov si,168
mov cx,21
s: push cx
mov di,0
mov cx,4
s1: mov al,es:[bp+di]
mov [bx+di],al
inc di
loop s1

mov byte ptr [bx+4],' '
mov ax,es:[bp+84]
mov dx,es:[bp+86]
mov [bx+5],ax
mov [bx+7],dx

mov byte ptr [bx+9],' '
mov ax,es:[bp+si]
mov [bx+10],ax

mov byte ptr [bx+12],' '
mov ax,[bx+5]
mov dx,[bx+7]
div word ptr [bx+10]
mov [bx+13],ax
mov byte ptr [bx+15],' '

add bx,16
add bp,4
add si,2
pop cx
loop s
mov ax,4c00h
int 21h
codesg ends
end start

一次次手动T单步执行循环过后也没事, 但用G命令跳出 MOV AX,4C00H时,就出现Divide overflow .
特来求助,不知道错在哪里了?

pro-serv

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
stack segment
dw 0,0,0,0,0,0,0,0
stack ends
codesg segment
start:
mov ax,stack
mov ss,ax
mov sp,16
mov ax,table
mov ds,ax
mov bx,0
mov ax,data
mov es,ax
mov bp,0
mov si,168
mov cx,21
s: push cx
mov di,0
mov cx,4
s1: mov al,es:[bp+di]
mov [bx+di],al
inc di
loop s1

mov byte ptr [bx+4],' '
mov ax,es:[bp+84]
mov dx,es:[bp+86]
mov [bx+5],ax
mov [bx+7],dx

mov byte ptr [bx+9],' '
mov ax,es:[si]
mov [bx+10],ax

mov byte ptr [bx+12],' '
mov ax,[bx+5]
mov dx,[bx+7]
div word ptr [bx+10]
mov [bx+13],ax
mov byte ptr [bx+15],' '

add bx,16
add bp,4
add si,2
pop cx
loop s
mov ax,4c00h
int 21h
codesg ends
end start

DB 总收入时入个了 ‘16000 ’
经过多次DEBUG之后，发现第45行错了，mov ax,es:[bp+si]应该改为 mov ax,es:[si]
我已经定义了SI初始值为168，再加BP就错了

NGtailang

pro-serv 发表于 2013-1-25 00:27

                               
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DB 总收入时入个了 ‘16000 ’
经过多次DEBUG之后，发现第45行错了，mov ax,es:应该改为 mov ax,es:[si]
...

是什么溢出了。具体的我也不知道。我也碰到过这情况。等高手