checker.lst

单片机89C51

C51 COMPILER V7.06   CHECKER                                                               07/12/2007 15:01:12 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE CHECKER
OBJECT MODULE PLACED IN checker.OBJ
COMPILER INVOKED BY: D:\Keil 51\setup\C51\BIN\C51.EXE checker.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          #include<reg51.h>
   2          #define uchar unsigned char
   3          #define uint unsigned int
   4          
   5          #define TRUE  1
   6          #define FAULSE   0
   7          #define scan P2
   8          
   9          sbit L1=P2^0;
  10          sbit L2=P2^1;
  11          sbit L3=P2^2;
  12          sbit L4=P2^3;
  13          sbit C1=P2^4;
  14          sbit C2=P2^5;
  15          sbit C3=P2^6;
  16          sbit C4=P2^7;
  17          uchar key=0;
  18          /****************check if any key pressed*********************/
  19          
  20          bit CheckState(void)
  21          {
  22   1              bit key=0;
  23   1              uchar state=0;
  24   1              scan=0x0F;                   //scan key
  25   1              state=scan;                                     //get kay state
  26   1              if(state!=0x0F)key=TRUE;    //check if any key pressed
  27   1              else key=FAULSE;
  28   1              return(key);
  29   1              }
  30          
  31          /****************** ckeck whitch key pressed*****************/
  32          
  33          uchar GetKeys(void)
  34          {
  35   1              scan=0xFF;
  36   1              if(L1==0)                  //line 1 have key pressed
  37   1                {
  38   2                       if(C1==0)key=0x11;
  39   2                       else if(C2==0)key=0x21;
  40   2                       else if(C3==0)key=0x41;
  41   2                       else key=0x81;
  42   2                       }
  43   1           
  44   1              else if(L2==0)
  45   1                {
  46   2                        if(C1==0)key=0x12;
  47   2                       else if(C2==0)key=0x22;
  48   2                       else if(C3==0)key=0x42;
  49   2                       else key=0x82;
  50   2                       }
  51   1      
  52   1              else if(L3==0)
  53   1                {
  54   2                        if(C1==0)key=0x14;
  55   2                       else if(C2==0)key=0x24;
C51 COMPILER V7.06   CHECKER                                                               07/12/2007 15:01:12 PAGE 2   

  56   2                       else if(C3==0)key=0x44;
  57   2                       else key=0x84;
  58   2                       }
  59   1      
  60   1              else 
  61   1                {
  62   2                       if(C1==0)key=0x18;
  63   2                       else if(C2==0)key=0x28;
  64   2                       else if(C3==0)key=0x48;
  65   2                       else key=0x88;
  66   2                       }
  67   1      
  68   1              return(key);
  69   1              }
  70                   
  71          void DisplayKey(uchar key)           
  72          {
  73   1              P1=key;
  74   1              }
  75          
  76          void main()
  77          {
  78   1              while(1)
  79   1              {
  80   2                      if(CheckState())key=GetKeys();
  81   2                      DisplayKey(key);
  82   2              
  83   2               }
  84   1              }
  85          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    170    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      1    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----       1
END OF MODULE INFORMATION.


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