smggd.lst

基于C51的数码管滚动显示程序设计

C51 COMPILER V8.15   SMGGD                                                                 07/08/2008 10:54:49 PAGE 1   


C51 COMPILER V8.15, COMPILATION OF MODULE SMGGD
OBJECT MODULE PLACED IN smggd.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE smggd.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          
   2          #include <reg52.h> //51芯片管脚定义头文件 
   3          #include <intrins.h>//内部包含延时函数 _nop_(); 
   4          
   5          #define uchar unsigned char 
   6          #define uint unsigned int 
   7          
   8          uchar display[ ]={0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
   9          
  10           0xBF,0xBF,0x89,0x86,0xC7,0xC7,0xC0,0xBF,0xBF, 
  11          
  12          // --H E L L O -
  13          
  14          
  15          0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff}; 
  16          
  17          uchar shift,j=0; 
  18          
  19          /********************************************************
  20          
  21           ms延时函数 
  22          
  23          ********************************************************/ 
  24          
  25          void delayms(uint ms) 
  26          
  27          {
  28   1      
  29   1       uchar t; 
  30   1      
  31   1      while(ms--)
  32   1      
  33   1      
  34   1       { 
  35   2      for(t = 0; t < 120; t++); 
  36   2      } 
  37   1      } 
  38          
  39          /******************************************************* 
  40          显示函数 
  41          *******************************************************/ 
  42          
  43          void disp(void) 
  44          
  45          { 
  46   1      uchar i; 
  47   1      shift=0x7f; 
  48   1      
  49   1      for(i=8; i>0; i--)
  50   1      
  51   1       { 
  52   2      P0=display[i+j]; 
  53   2      P3=shift; 
  54   2      shift=(shift>>1)|0x80; 
  55   2      delayms(1);
C51 COMPILER V8.15   SMGGD                                                                 07/08/2008 10:54:49 PAGE 2   

  56   2      
  57   2      
  58   2       } 
  59   1      P3=0xff ; 
  60   1      } 
  61          
  62          /******************************************************* 
  63          主函数 
  64          *******************************************************/ 
  65          
  66          void main() 
  67          { 
  68   1      uchar k;
  69   1      
  70   1       P0=0xFF; 
  71   1      P3=0xFF; 
  72   1      
  73   1      
  74   1      while(1)
  75   1      
  76   1      
  77   1       { 
  78   2      for(j=0;j<17;j++) 
  79   2      { 
  80   3      
  81   3      
  82   3      for(k=0;k<125;k++) 
  83   3      disp(); 
  84   3      } 
  85   2      } 
  86   1      } 
  87          
  88          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     89    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =     27    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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