main.lst

51单片机C语言常用模块与综合系统设计实例精讲

C51 COMPILER V7.06   MAIN                                                                  10/19/2006 19:33:15 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE MAIN
OBJECT MODULE PLACED IN main.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE main.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          #include <stdio.h>
   2          #include <absacc.h>
   3          #include <intrins.h>
   4          #include <./Atmel/at89x52.h>
   5          #include "source.h"
   6          void Enable_Int(unsigned char i);
   7          void Disable_Int(unsigned char i);
   8          main(void){
   9   1              unsigned int i;
  10   1              Enable_Int(0);
  11   1              Enable_Int(1);
  12   1              Enable_Int(2);
  13   1              Enable_Int(3);
  14   1              Enable_Int(4);
  15   1              Enable_Int(5);
  16   1              Enable_Int(6);
  17   1              Enable_Int(7);
  18   1              while(1){
  19   2                      i++;
  20   2                      if(i==0)Enable_Int(7);
  21   2                      if(i==0x7fff)Disable_Int(7);
  22   2              }
  23   1      }
  24          void Int_Clr(unsigned char i){//清除扩展中断i
  25   1              XBYTE[INT_CLR0+i]=1; //把清除i对应的地址写1
  26   1      }
  27          void Enable_Int(unsigned char i){//使能扩展中断i
  28   1              unsigned char temp;
  29   1              temp=XBYTE[INT_ENA]; //读出使能寄存器的状态
  30   1              temp |=1<<i;//要对应的要使能比特写1
  31   1              XBYTE[INT_ENA]=temp;//把temp值给使能寄存器的
  32   1      }
  33          void Disable_Int(unsigned char i){//禁止扩展中断i
  34   1              unsigned char temp;
  35   1              unsigned char mask;
  36   1              mask=1<<i;
  37   1              mask=~mask; //把要屏幕中断的比特设置0，其他比特为1
  38   1              temp=XBYTE[INT_ENA];//读出使能寄存器的状态
  39   1              temp &=mask;
  40   1              XBYTE[INT_ENA]=temp;//把使能寄存器相应的比特设置为0
  41   1      }
  42          void int0() interrupt 0 {
  43   1              unsigned char stat,i;
  44   1              stat=XBYTE[INT_MASKED];
  45   1              for(i=0;i<8;i++){
  46   2                      if(stat&(1<<i)){
  47   3                              Int_Clr(i);
  48   3                      }
  49   2              }
  50   1      }
  51          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    220    ----
C51 COMPILER V7.06   MAIN                                                                  10/19/2006 19:33:15 PAGE 2   

   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----       2
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


C51 COMPILATION COMPLETE.  0 WARNING(S),  0 ERROR(S)