main.lst

4*4键盘

C51 COMPILER V7.01  MAIN                                                                   11/15/2006 01:15:40 PAGE 1   


C51 COMPILER V7.01, COMPILATION OF MODULE MAIN
OBJECT MODULE PLACED IN main.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE main.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          #include<reg51.h>
   2          const int LEDCode[16]={0x40,0x79,0x24,0x30,0x19,0x12,0x02,0x78,0x00,0x10,0x08,0x03,0x46,0x21,0x06,0x0e};
   3          void main()
   4          {
   5   1              unsigned int Code;
   6   1              P3 = 0xf0;
   7   1              P1 = 0xf0;
   8   1      while(1)
   9   1      {
  10   2        if(P1!=0xf0)
  11   2          {
  12   3              P1=0xfe;
  13   3              if(P1!=0xfe)
  14   3                        {
  15   4                      Code = P1;
  16   4                              goto display;
  17   4                        }
  18   3                      P1=0xfd;
  19   3              if(P1!=0xfd)
  20   3                        {
  21   4                      Code = P1;
  22   4                              goto display;
  23   4                        }
  24   3                      P1=0xfb;
  25   3              if(P1!=0xfb)
  26   3                        {
  27   4                      Code = P1;
  28   4                              goto display;
  29   4                        }
  30   3                      P1=0xf7;
  31   3              if(P1!=0xf7)
  32   3                        {
  33   4                      Code = P1;
  34   4                        }
  35   3          }
  36   2      display:
  37   2              switch (Code)
  38   2              {
  39   3                      case(0xee):P2 = LEDCode[0];break;
  40   3                      case(0xed):P2 = LEDCode[1];break;       
  41   3                      case(0xeb):P2 = LEDCode[2];break;
  42   3                      case(0xe7):P2 = LEDCode[3];break;
  43   3                      case(0xde):P2 = LEDCode[4];break;       
  44   3                      case(0xdd):P2 = LEDCode[5];break;
  45   3                      case(0xdb):P2 = LEDCode[6];break;
  46   3                      case(0xd7):P2 = LEDCode[7];break;
  47   3                      case(0xbe):P2 = LEDCode[8];break;
  48   3                      case(0xbd):P2 = LEDCode[9];break;
  49   3                      case(0xbb):P2 = LEDCode[10];break;
  50   3                      case(0xb7):P2 = LEDCode[11];break;
  51   3                      case(0x7e):P2 = LEDCode[12];break;
  52   3                      case(0x7d):P2 = LEDCode[13];break;
  53   3                      case(0x7b):P2 = LEDCode[14];break;
  54   3                      case(0x77):P2 = LEDCode[15];break;
  55   3              }
C51 COMPILER V7.01  MAIN                                                                   11/15/2006 01:15:40 PAGE 2   

  56   2      }
  57   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    216    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =     32       2
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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