key.lst

52单片机开发板的实例程序

C51 COMPILER V9.00   KEY                                                                   08/20/2011 21:49:40 PAGE 1   


C51 COMPILER V9.00, COMPILATION OF MODULE KEY
OBJECT MODULE PLACED IN key.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE key.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include<reg52.h>
   2          #define uint unsigned int
   3          #define uchar unsigned char 
   4          sbit a=P1^0;
   5          sbit b=P1^1;
   6          sbit c=P1^2;
   7          sbit key1=P3^2;
   8          sbit key2=P3^3;
   9          sbit key3=P3^4;
  10          sbit key4=P3^5;
  11          const uchar table[]={
  12                    0x3f,0x06,0x5b,0x4f,0x66,
  13                    0x6d,0x7d,0x07,0x7f,0x6f};
  14          uchar num=0;
  15          void delay(uint k)
  16          {
  17   1        uint i;
  18   1        for(;k>0;k--)
  19   1        for(i=110;i>0;i--);
  20   1      }
  21          void display()
  22          {
  23   1        a=0;b=0;c=0;
  24   1        P2=table[num];
  25   1      }
  26          void main()
  27          {
  28   1         while(1)
  29   1      {
  30   2        if(key1==0)
  31   2        {
  32   3          delay(2);
  33   3          if(key1==0)
  34   3          {
  35   4          while(!key1);
  36   4          num=1; 
  37   4          }
  38   3        }
  39   2      if(key2==0)
  40   2        {
  41   3          delay(2);
  42   3         if(key2==0)
  43   3         {
  44   4          while(!key2);
  45   4          num=2;
  46   4         } 
  47   3        }
  48   2      if(key3==0)
  49   2        {
  50   3          delay(2);
  51   3          if(key3==0)
  52   3          {
  53   4          while(!key3);
  54   4          num=3; 
  55   4          }
C51 COMPILER V9.00   KEY                                                                   08/20/2011 21:49:40 PAGE 2   

  56   3        }
  57   2      if(key4==0)
  58   2        {
  59   3          delay(2);
  60   3          //if(key4==0)
  61   3          //{
  62   3          while(!key4);
  63   3          num=4; 
  64   3          //}
  65   3        }
  66   2       display();
  67   2      }
  68   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    111    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =     11    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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