实验2.lst

51单片机入门级资料。流水灯

C51 COMPILER V7.50   实验2                                                                 07/20/2008 14:00:24 PAGE 1   


C51 COMPILER V7.50, COMPILATION OF MODULE 实验2
OBJECT MODULE PLACED IN 实验2.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE 实验2.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include<reg52.h>
   2          #define uchar unsigned char
   3          #define uint unsigned int
   4          sbit dula=P2^6;
   5          sbit wela=P2^7;
   6          uchar code table[]={
   7          0x3f,0x06,0x5b,0x4f,
   8          0x66,0x6d,0x7d,0x07,
   9          0x7f,0x6f,0x77,0x7c,
  10          0x39,0x5e,0x79,0x71};
  11          uchar temp,num;
  12          delay(uchar);
  13          display(uchar);
  14          void main()
  15          {
  16   1              while(1)
  17   1              {
  18   2                      P3=0xfe;
  19   2                      temp=P3;
  20   2                      temp=temp&0xf0;
  21   2                      if(temp!=0xf0)
  22   2                       {
  23   3                              delay(50);
  24   3                              if(temp!=0xf0)
  25   3                               {
  26   4                                      switch(temp)
  27   4                                      {
  28   5                                              case 0xe0: num=0;
  29   5                                                      break;
  30   5                                              case 0xd0: num=1;
  31   5                                                      break;
  32   5                                              case 0xb0: num=2;
  33   5                                                      break;
  34   5                                              case 0x70: num=3;
  35   5                                                      break;
  36   5                                      
  37   5                                      }
  38   4                               }
  39   3                       }
  40   2      
  41   2                      P3=0xfd;
  42   2                      temp=P3;
  43   2                      temp=temp&0xf0;
  44   2                      if(temp!=0xf0)
  45   2                       {
  46   3                              delay(50);
  47   3                              if(temp!=0xf0)
  48   3                               {
  49   4                                      switch(temp)
  50   4                                      {
  51   5                                              case 0xe0: num=4;
  52   5                                                      break;
  53   5                                              case 0xd0: num=5;
  54   5                                                      break;
  55   5                                              case 0xb0: num=6;
C51 COMPILER V7.50   实验2                                                                 07/20/2008 14:00:24 PAGE 2   

  56   5                                                      break;
  57   5                                              case 0x70: num=7;
  58   5                                                      break;
  59   5                                      
  60   5                                      }
  61   4                               }
  62   3                       }
  63   2      
  64   2                      P3=0xfb;
  65   2                      temp=P3;
  66   2                      temp=temp&0xf0;
  67   2                      if(temp!=0xf0)
  68   2                       {
  69   3                              delay(50);
  70   3                              if(temp!=0xf0)
  71   3                               {
  72   4                                      switch(temp)
  73   4                                      {
  74   5                                              case 0xe0: num=8;
  75   5                                                      break;
  76   5                                              case 0xd0: num=9;
  77   5                                                      break;
  78   5                                              case 0xb0: num=10;
  79   5                                                      break;
  80   5                                              case 0x70: num=11;
  81   5                                                      break;
  82   5                                      
  83   5                                      }
  84   4                               }
  85   3                       }
  86   2      
  87   2                      P3=0xf7;
  88   2                      temp=P3;
  89   2                      temp=temp&0xf0;
  90   2                      if(temp!=0xf0)
  91   2                       {
  92   3                              delay(50);
  93   3                              if(temp!=0xf0)
  94   3                               {
  95   4                                      switch(temp)
  96   4                                      {
  97   5                                              case 0xe0: num=12;
  98   5                                                      break;
  99   5                                              case 0xd0: num=13;
 100   5                                                      break;
 101   5                                              case 0xb0: num=14;
 102   5                                                      break;
 103   5                                              case 0x70: num=15;
 104   5                                                      break;
 105   5                                      
 106   5                                      }
 107   4                               }
 108   3                       }
 109   2           display(num);
 110   2              }
 111   1      }
 112          
 113          delay(uchar x)
 114          {
 115   1              uchar a,b;
 116   1              for(a=x;a>0;a--)
 117   1               for(b=200;b>0;b--);
C51 COMPILER V7.50   实验2                                                                 07/20/2008 14:00:24 PAGE 3   

 118   1      }
 119          display(uchar num1)
 120          {
 121   1              P0=table[num1];
 122   1              dula=1;
 123   1              dula=0; 
 124   1              P0=0xc0;
 125   1              wela=1;
 126   1              wela=0;
 127   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    289    ----
   CONSTANT SIZE    =     16    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      2    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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