C51 COMPILER V6.23a  KEY4X4                                                                05/06/2009 09:22:39 PAGE 1   


C51 COMPILER V6.23a, COMPILATION OF MODULE KEY4X4
OBJECT MODULE PLACED IN KEY4X4.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\c51.exe KEY4X4.C DB OE

stmt level    source

   1          #include <AT89X52.H>
   2          #include "8LED.h"
   3          
   4          #define key_io  P1
   5          unsigned char key();
   6          unsigned int key_time,MS;
   7          unsigned char mode;
   8          void main(void)
   9          {
  10   1              unsigned char key_temp,i;
  11   1              EA=1;
  12   1      
  13   1      
  14   1              ET0=1;
  15   1              TMOD=0x01;
  16   1              TH0=0XFC;
  17   1              TL0=0X18;
  18   1              TR0=1;
  19   1      
  20   1              while(1)
  21   1              {
  22   2                      key_temp=key();
  23   2                      if(key_temp<10)
  24   2                      {
  25   3                              if(mode==3)
  26   3                              {
  27   4                                      for(i=0;i<7;i++)
  28   4                                              str[i]=str[i+1];
  29   4                                      str[7]=key_temp;
  30   4                              }
  31   3                                      
  32   3                      }
  33   2              }
  34   1      
  35   1      }
  36          
  37          void time0()interrupt 1
  38          {
  39   1              TH0=0XFC;
  40   1              TL0=0X18;
  41   1              
  42   1      //      if(MS>=250){MS=0,LED_Display();}
  43   1      
  44   1              if(mode==1)
  45   1              {
  46   2                      MS++;
  47   2                      if(MS==250&&led_h%8!=0)MS=0,LED_Display();
  48   2                      else if(MS==500&&led_h%8==0)MS=0,LED_Display();
  49   2              }
  50   1              else
  51   1                      LED8_Display();
  52   1      }
  53          void clrled(void)
  54          {
  55   1              str[0]=str[1]=str[2]=str[3]=str[4]=str[5]=str[6]=str[7]=17;
C51 COMPILER V6.23a  KEY4X4                                                                05/06/2009 09:22:39 PAGE 2   

  56   1      }
  57          
  58          unsigned char key(void)
  59          {
  60   1              unsigned char temp;
  61   1              key_io=0xf0;
  62   1              if(key_io!=0xf0)
  63   1              {
  64   2                      key_time++;
  65   2                      if(key_time==100||(key_time>10000&&key_time%300==0))
  66   2                      {
  67   3                              temp=key_io;
  68   3                              key_io=temp|0x0f;
  69   3                              temp=key_io;
  70   3                              switch(temp)
  71   3                              {
  72   4                                      case 0xe7:return 1;
  73   4                                      case 0xeb:return 2;
  74   4                                      case 0xed:return 3;
  75   4                                      case 0xee:mode=1;led_h=0;return 0xf1;//f1
  76   4                                      
  77   4                                      case 0xd7:return 4;
  78   4                                      case 0xdb:return 5;
  79   4                                      case 0xdd:return 6;
  80   4                                      case 0xde:mode=2;return 0xf2;//f2
  81   4                                      
  82   4                                      case 0xb7:return 7;
  83   4                                      case 0xbb:return 8;
  84   4                                      case 0xbd:return 9;
  85   4                                      case 0xbe:mode=3;clrled();return 0xf3;//f3
  86   4              
  87   4                                      case 0x77:return '*';//start
  88   4                                      case 0x7b:return 0;
  89   4                                      case 0x7d:return '#';//#
  90   4                                      case 0x7e:mode=4;clrled();str[0]=0;str[1]=1;str[2]=4;return 0xf4;//f4
  91   4                                      default:return 0xff;
  92   4                              }
  93   3                      }
  94   2                      else
  95   2                      {
  96   3                              return 0xff;
  97   3                      }
  98   2              }
  99   1              else
 100   1                      key_time=0;
 101   1              return 0xff;
 102   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    495    ----
   CONSTANT SIZE    =     18    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =     14    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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