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data segment
db 1h,20h,30h,40h,50h,60h,70h,70h,0,0
data ends
stack segment
db 0,0,0,0,0,0,0,0
stack ends
code segment
assume cs:code ,ds:data ,ss:stack
start:
mov ax,data
mov ds,ax
mov ax,stack
mov ss,ax
mov sp,06
mov bx,[0]
mov cx,7
mov ah,0
mov bx,7
mov al,[bx]
mov bx,9
mov [bx],al
mov bx,0
mov al,[bx]
mov bx,8
mov [bx],al
mov dl,[bx]
call dispdec
mov ah,02
mov dl,0
int 21h
mov dh,0
mov dh,0
mov bx,9
mov dl,[bx]
call dispdec
mov ax,4c00h
int 21h
dispdec proc uses ax bx cx dx ;显示十进制子程序
mov ax,dx
xor dx,dx
mov bx,10
mov cx,0
a:
cmp ax,10
jb ok
div bx
add dl,30h
push dx
xor dx,dx
inc cx
jmp a
ok:
add al,30h
push ax
inc cx
b:
pop dx
mov ah,2
int 21h
loop b
ret
dispdec endp
code ends
end start