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信誉值：0
注册日期：2010-12-03 12:08 |
代码很乱，
assume cs:code
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
code segment
start: mov ax,data
mov ds,ax
mov ax,table
mov es,ax
mov si,0
mov di,0
mov bx,0
mov cx,21
s:
mov ax,ds:[si]
mov es:[bx+di],ax
add si,2
add di,2
mov ax,ds:[si]
mov es:[bx+di],ax
mov al,' '
mov es:[bx+4],ax
add bx,10h
mov di,0
add si,2
loop s
mov bx,0
mov cx,21
s0:
mov ax,ds:[si]
mov es:[bx+di+5],ax
add si,2
add di,2
mov ax,ds:[si]
mov es:[bx+di+5],ax
mov al,' '
mov es:[bx+9],al
add bx,10h
mov di,0
add si,2
loop s0
mov bx,0
mov cx,21
s1:
mov ax,ds:[si]
mov es:[bx+di+0ah],ax
mov al,' '
mov es:[bx+0ch],al
add bx,10h
add si,2
loop s1
mov bx,0
mov cx,21
s2:
mov ax,es:[bx+5]
mov dx,es:[bx+7]
div word ptr es:[bx+0ah]
mov es:[bx+0dh],ax
mov al,' '
mov es:[bx+0fh],al
add bx,10h
loop s2
mov ax,0b800h
mov ds,ax
mov si,0
mov di,0
mov cx,21
mov bx,0
ok: push cx
mov ax,0a0h
mul cx
mov di,ax
nf: mov cx,0
mov cl,es:[si]
sub cl,20h
jcxz s6
mov ch,2
mov cl,es:[si]
mov ds:[bx+di],cx
add si,1
add bx,2
jmp nf
s6: sub bx,6
s3: add bx,40
mov cx,0
s4: mov cl,es:[si]
sub cl,20h
inc si
jcxz div_r
jmp s4
inc si
div_r: call divv
mov cx,si
sub cx,13
and cx,0fh
jcxz next
jmp s3
next: mov bx,0
pop cx
add si,3
loop ok
mov ax,4c00h
int 21h
divv: push cx
push bx
push dx
mov dx,0
mov cx,0
mov cl,es:[si+2]
sub cl,20h
jcxz div_1 ;cx=0为字节运算，cx非0为字运算
mov dx,es:[si+2]
div_1: mov ax,es:[si]
div_2: mov cx,10
mov es:[si],ax
mov ax,dx
mov dx,0
div cx
push ax
mov ax,es:[si]
div cx
mov cx,dx
pop dx
add cl,30h
mov ch,2
push cx
inc bp
mov cx,ax
jcxz div_3
jmp div_2
div_3: mov cx,bp
mov bp,0
div_4: pop ds:[bx+di]
add bx,2
loop div_4
pop dx
pop bx
pop cx
ret
code ends
end start | | |
