王爽汇编语言,实验七overflow了,怎么回事??
assume cs:codedata segment
db'1975','1975','1976','1977','1978','1979'
db '1980','1981','1982','1983','1984','1985','1986','1987','1988','1989'
db '1990','1991','1992','1993','1994','1995'
;21 years
dd16,22,382,1356,2390,8000,16000,24486,50065,97479,140417,197514,345980
dd 590827,803530,1183000,2759000,3753000,4649000,5937000
dw3,7,9,13,28,38,130,220,476,778,1001,1442,2258,2793,4037,5635,8226
dw 11542,14430,15257,17800
data ends
table segment
db 21 dup ('year summ ne ?? ')
table ends
code segment
start:
mov ax,data
mov ds,ax
mov ax,table
mov es,ax
mov si,0
mov di,0
mov cx,21
s: push cx
mov bx,0
mov cx,4
s0: mov ax,ds:
mov es:,ax
inc bx
loop s0
;copy the year
mov es:,' '
;the first space
inc bx
mov ax,ds:
mov es:,ax
add bx,2
mov ax,ds:
mov es:,ax
;copy the income
add bx,2
mov es:,' '
;the second space
inc bx
mov ax,ds:
mov es:,ax
;copy the number of workers
add bx,2
mov es:,' '
;the third space
inc bx
mov ax,ds:
mov dx,ds:
div word ptr ds://就是这里!!就是这行会overflow!!!
mov es:,ax
;the per capita income
add bx,2
mov es:,' '
;the last space
add si,4
add di,2
pop cx
loop s
mov ax,4c00h
int 21h
code ends
end start
求大神!!!
DIV时AX=3931HDX=3539H 。。。寻址不对哦!!
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