key.lst

4*4键盘程序c源码以及在cpld环境下的运行

C51 COMPILER V6.23a  KEY                                                                   05/09/2008 07:29:03 PAGE 1   


C51 COMPILER V6.23a, COMPILATION OF MODULE KEY
OBJECT MODULE PLACED IN key.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE key.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          #include<reg51.h>
   2          #define uchar unsigned char
   3          #define uint unsigned int
   4          
   5          void mDelay(uint j)
   6            {
   7   1          uint i=0;
   8   1              for(;j>0;j--)
   9   1                for(i=0;i<125;i++)
  10   1                  {;}
  11   1        }
  12          
  13            uchar key()
  14            {
  15   1          uchar keyvalue,temp;
  16   1              keyvalue=P0;
  17   1              if(keyvalue==0xff)
  18   1                return(0);
  19   1              mDelay(10);
  20   1              keyvalue=P0;
  21   1              if(keyvalue==0xff)
  22   1                return(0);
  23   1              for(;;)
  24   1              { 
  25   2                temp=P0;
  26   2                if(temp==0xff)
  27   2                  break;  
  28   2              }
  29   1              return(keyvalue);
  30   1        }
  31          
  32            void out()
  33            {
  34   1          switch(key())
  35   1              {
  36   2                case 0x00:{P1=0xff;P2=0xff;}
  37   2      
  38   2                case 0xee:{P1=0xfe;P2=0xff;}
  39   2                case 0xed:{P1=0xfd;P2=0xff;}
  40   2                case 0xeb:{P1=0xfb;P2=0xff;}
  41   2                case 0xe7:{P1=0xf7;P2=0xff;}
  42   2      
  43   2                case 0xde:{P1=0xef;P2=0xff;}
  44   2                case 0xdd:{P1=0xdf;P2=0xff;}
  45   2                case 0xdb:{P1=0xbf;P2=0xff;}
  46   2                case 0xd7:{P1=0x7f;P2=0xff;}
  47   2      
  48   2                case 0xbe:{P1=0xff;P2=0xfe;}
  49   2                case 0xbd:{P1=0xff;P2=0xfd;}
  50   2                case 0xbb:{P1=0xff;P2=0xfb;}
  51   2                case 0xb7:{P1=0xff;P2=0xf7;}
  52   2      
  53   2                case 0x7e:{P1=0xff;P2=0xef;}
  54   2                case 0x7d:{P1=0xff;P2=0xdf;}
  55   2                case 0x7b:{P1=0xff;P2=0xbf;}
C51 COMPILER V6.23a  KEY                                                                   05/09/2008 07:29:03 PAGE 2   

  56   2                case 0x77:{P1=0xff;P2=0x7f;}
  57   2              }
  58   1        }
  59          
  60            void main()
  61            {
  62   1          for(;;)
  63   1              {
  64   2                out();
  65   2                mDelay(2000);
  66   2              }
  67   1        }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    237    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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