cs19-1.lst

《手把手教你学单片机的C程序设计》及实验程序

C51 COMPILER V7.06   CS19_1                                                                02/18/2007 18:35:11 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE CS19_1
OBJECT MODULE PLACED IN CS19-1.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE CS19-1.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          #include <REG51.H>              
   2          #define uint unsigned int       
   3          #define uchar unsigned char     
   4          uchar flag;
   5          /****************************/
   6          void delay(uint k)                              
   7          {                                                       
   8   1      uint data i,j;                                          
   9   1      for(i=0;i<k;i++)                                        
  10   1      {for(j=0;j<121;j++)                                     
  11   2      {;}}                                                    
  12   1      }                                                       
  13          /**********************************/
  14          uchar scan_key(void)
  15          {
  16   1      uchar temp;
  17   1      temp=P3;
  18   1      return temp;
  19   1      }
  20          /***********************************/
  21          void main(void)         
  22          {                                                       
  23   1               while(1)                                               
  24   1               {
  25   2                 P3=0xff;
  26   2                 if(P3!=0xff)
  27   2                 {    delay(20);              
  28   3                      P3=0xff;
  29   3                      if(P3!=0xff)flag=scan_key();
  30   3                 }
  31   2                 else flag=0;
  32   2                 switch(flag)
  33   2                 {
  34   3                 case 0xfb:P1=0xfb;break;
  35   3                 case 0xf7:P1=0xf0;;break;
  36   3                 case 0xef:P1=0xc0;break;
  37   3                 case 0xdf:P1=0x00;;break;
  38   3                 default:P1=0xff;break;
  39   3                 }
  40   2               }                      
  41   1      }               


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    111    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      1    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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