键功能_1.cpp.lst

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C51 COMPILER V7.50   键功能_1_CPP                                                          12/10/2006 18:56:36 PAGE 1   


C51 COMPILER V7.50, COMPILATION OF MODULE 键功能_1_CPP
OBJECT MODULE PLACED IN 键功能_1.cpp.OBJ
COMPILER INVOKED BY: D:\Program Files\uv2\C51\BIN\C51.EXE 键功能_1.cpp.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          //key_164_led_2
   2          
   3          #include <stdio.h>
   4          #include <reg51.h>
   5          #include <intrins.h>
   6          unsigned char code ledk[17]={0x3f,0x06,0x5b,0x4f,0x66,0x6D,0x7d,0x07,0x7f,
   7          0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71,0x00};
   8          unsigned char mask=0xef,key;
   9          sbit P37=P3^7;sbit clk=P0^7;sbit sda=P0^6;              //74LS164
  10          void shift(unsigned char dx)
  11          {static unsigned char d;
  12   1         unsigned char j=0;
  13   1          d=dx;
  14   1              while(j<8)
  15   1              {if((d&0x80)!=0) sda=1;
  16   2             else  sda=0;
  17   2                 clk=0;clk=1;
  18   2                 d<<=1;j++;}  }
  19          unsigned char get_char(void)
  20          {unsigned char  key_code;
  21   1        static unsigned char column=0;
  22   1        if (P37!=0)key_code=0xff;
  23   1           else key_code=column;
  24   1        mask=_crol_(mask,1);
  25   1      if (mask==0xfe) mask=0xef;
  26   1        column++;  if(column>3)column=0; 
  27   1       return(key_code);}
  28          void key_func(key)
  29           {switch (key)
  30   1         {case 0:  shift(ledk[1]);break;
  31   2          case 1:  shift(ledk[2]);break;
  32   2          case 2:  shift(ledk[3]);break;
  33   2          case 3:  shift(ledk[4]);break;
  34   2          default: break;}  }
  35          void main(void)
  36          {shift(ledk[5]);P2=0x08; 
  37   1      while(1)
  38   1           {key=get_char( );key_func(key);P2=mask&0x08;}                 
  39   1       }
  40          
  41          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    145    ----
   CONSTANT SIZE    =     17    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      4    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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