main.lst

《Proteus在MCS-51&ARM7系统中的应用百例》逆向之 Chapter 4 《Proteus在MCS-51&ARM7系统中的应用百例》MCS-51例子的C语言版本。

C51 COMPILER V8.08   MAIN                                                                  05/18/2007 11:58:54 PAGE 1   


C51 COMPILER V8.08, COMPILATION OF MODULE MAIN
NO OBJECT MODULE REQUESTED
COMPILER INVOKED BY: D:\Program Files\Keil 8.08\C51\BIN\C51.EXE main.c BROWSE DEBUG OBJECTEXTEND SRC(.\main.SRC)

line level    source

   1          #include <reg51.h>
   2          #include <intrins.h>
   3           
   4          typedef unsigned char BYTE;
   5          
   6          BYTE DBUF _at_ 0x30;
   7          BYTE TEMP _at_ 0x40;
   8          
   9          sbit P30=P3^0;
  10          sbit P31=P3^1;
  11          
  12          BYTE code SEGTAB[]={ 0x3F,0x06,0x5B,0x4F,0x66,0x6D,       
  13                                                   0x7D,0x07,0x7F,0x6F,0x77,0x7C,
  14                                                   0x58,0x5E,0x79,0x71,0x00,0x40};
  15          
  16          BYTE code K1TAB[]={  0x81,0x41,0x21,0x11,       
  17                                   0x82,0x42,0x22,0x12,
  18                                                   0x84,0x44,0x24,0x14,
  19                                                   0x88,0x48,0x28,0x18};
  20                  
  21          
  22          void display(BYTE in)
  23          {
  24   1              BYTE num;
  25   1              DBUF=in;
  26   1              TEMP=SEGTAB[DBUF];
  27   1              
  28   1              num=8;
  29   1              ACC=TEMP;
  30   1      
  31   1              do
  32   1              {
  33   2                      #pragma asm
  34   2                              RLC A   
  35   2                      #pragma endasm
  36   2      
  37   2                      P30=CY;
  38   2                      P31=0;
  39   2                      P31=1;
  40   2              }while(--num);          
  41   1      }
  42          
  43          
  44          
  45          void delay()
  46          {
  47   1              BYTE i=0x01;
  48   1              
  49   1              do
  50   1              {       
  51   2                      BYTE j=0x88;
  52   2                      do
  53   2                      {
  54   3                              _nop_();
  55   3                      }while(--j);
C51 COMPILER V8.08   MAIN                                                                  05/18/2007 11:58:54 PAGE 2   

  56   2              }while(--i);
  57   1      } 
  58          
  59          
  60          
  61          BYTE key1()
  62          {
  63   1              BYTE temp;
  64   1              BYTE num;
  65   1              BYTE key;
  66   1      
  67   1              while(1)
  68   1              {
  69   2                      P1=0xF0;
  70   2                      if(P1==0xF0)
  71   2                              continue;
  72   2      
  73   2                      delay();                
  74   2                      P1=0xF0;
  75   2                      temp=P1;
  76   2                      if(temp==0xF0)
  77   2                              continue;
  78   2                      
  79   2                      P1=0x0F;
  80   2                      temp=P1&temp;
  81   2      
  82   2                      num=0x10;
  83   2                      key=0;
  84   2      
  85   2                      do
  86   2                      {
  87   3                              if(temp==K1TAB[key])
  88   3                              {
  89   4                                      P1=0x0F;
  90   4                                      while(P1!=0x0F);
  91   4                                      return key;
  92   4                              }
  93   3                              key++;
  94   3                      }while(--num);
  95   2              }                          
  96   1      }
  97          
  98          
  99          main()
 100          {
 101   1              while(1)
 102   1              {
 103   2                      display(key1());
 104   2              }
 105   1              
 106   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    100    ----
   CONSTANT SIZE    =     34    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----       1
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.

C51 COMPILER V8.08   MAIN                                                                  05/18/2007 11:58:54 PAGE 3   


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