响铃(页 1) - 汇编论坛

蓝薇发表于 2007-12-5 12:52

响铃

输入1到9 响铃相应的次数
data segment
array db 1,2,3,4,5,6,7,8,9
data ends
code segment
main proc far
assume cs:code,ds:data
start:
  push ds
  sub bx,bx
  push bx
  mov ah,01
  int 21h
  sub al,30h
  cmp al,0
  je exit
  mov si,0
l:
cmp al,array[si]
jne m
jmp n
m:
  inc si
  jmp l
n:
  mov dl,07h
  mov ah,02
  int 21h
  dec si
  jnz n
exit:
   ret
   main endp
   code ends
   end start
（不知为什么总是响一次，各位帮帮忙，先谢谢喽）

zhulei1978 发表于 2007-12-5 14:57

每两次响铃之间的时间间隔很短，所以分辨不出响了几次，加个延时
data segment
array db 1,2,3,4,5,6,7,8,9
data ends
code segment
main proc far
assume cs:code,ds:data
start:
  push ds
  sub ax,ax
  push ax
  mov ax,data
  mov ds,ax
  mov ah,01
  int 21h
  sub al,30h
  cmp al,0
  je exit
  mov si,offset array
l:
cmp al,[si]
jne m
inc si
jmp n
m:
  inc si
  jmp l
n:
  mov dl,07h
  mov ah,02
  int 21h

mov cx,5000h
loop1:push cx
mov cx,0ffffh
loop2: loop loop2
pop cx
loop loop1
  dec si
  jnz n
exit:
   ret
   main endp
   code ends
   end start

[[italic] 本帖最后由 zhulei1978 于 2007-12-5 16:29 编辑 [/italic]]

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