数码管静态显示.lst

单片机实验箱完整的串行静态显示源代码 供初学者用

C51 COMPILER V7.06   数码_躝蔡__允_                                                        05/31/2007 15:10:33 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE 数码_躝蔡__允_
OBJECT MODULE PLACED IN 数码管静态显示.OBJ
COMPILER INVOKED BY: D:\keil c51\C51\BIN\C51.EXE 数码管静态显示.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          #include <reg51.h>
   2          
   3          sbit clk=P3^0;
   4          sbit dat=P3^1;
   5          unsigned char a;
   6          unsigned char x,y;
   7          int i,m;
   8          
   9          void main(void)
  10          {
  11   1      void display(void);
  12   1      clk=0;
  13   1      a=0x7d;
  14   1      display( );
  15   1      a=0x6d;
  16   1      display( );
  17   1      a=0x66;
  18   1      display( );
  19   1      a=0x4f;
  20   1      display( );
  21   1      a=0x5b;
  22   1      display( );
  23   1      a=0x06;
  24   1      display( );
  25   1      for(;;);
  26   1      }
  27          
  28          void display(void)
  29          {for(i=0;i<=7;i++)
  30   1        {clk=0;
  31   2         //for(m=1000;m>0;m--);
  32   2         
  33   2         y=(a<<i)&0x80;
  34   2         if(y==0){dat=0;}
  35   2         else {dat=1;}
  36   2         clk=1;
  37   2         //for(m=1000;m>0;m--);
  38   2         }
  39   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     89    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      7    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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