lesson5_3.lst

按键处理程序

C51 COMPILER V6.12  LESSON5_3                                                              01/27/2007 10:52:07 PAGE 1   


C51 COMPILER V6.12, COMPILATION OF MODULE LESSON5_3
OBJECT MODULE PLACED IN .\lesson5_3.OBJ
COMPILER INVOKED BY: D:\Program Files\Keil\C51\BIN\C51.EXE .\lesson5_3.c DEBUG OBJECTEXTEND

stmt level    source

   1          #include<reg52.h>
   2          #define uchar unsigned char
   3          #define uint unsigned int
   4          sbit dula=P2^6;
   5          sbit wela=P2^7;
   6          uchar code table[]={
   7          0x3f,0x06,0x5b,0x4f,
   8          0x66,0x6d,0x7d,0x07,
   9          0x7f,0x6f,0x77,0x7c,
  10          0x39,0x5e,0x79,0x71};
  11          uchar temp,num;
  12          delay(uchar);
  13          display(uchar);
  14          void main()
  15          {
  16   1      	while(1)
  17   1      	{
  18   2      		P3=0xfe;
  19   2      		temp=P3;
  20   2      		temp=temp&0xf0;
  21   2      		if(temp!=0xf0)
  22   2      		 {
  23   3      			delay(50);
  24   3      			if(temp!=0xf0)
  25   3      			 {
  26   4      				switch(temp)
  27   4      				{
  28   5      					case 0xe0: num=0;
  29   5      						break;
  30   5      					case 0xd0: num=1;
  31   5      						break;
  32   5      					case 0xb0: num=2;
  33   5      						break;
  34   5      					case 0x70: num=3;
  35   5      						break;
  36   5      				
  37   5      				}
  38   4      			 }
  39   3      		 }
  40   2      
  41   2      		P3=0xfd;
  42   2      		temp=P3;
  43   2      		temp=temp&0xf0;
  44   2      		if(temp!=0xf0)
  45   2      		 {
  46   3      			delay(50);
  47   3      			if(temp!=0xf0)
  48   3      			 {
  49   4      				switch(temp)
  50   4      				{
  51   5      					case 0xe0: num=4;
  52   5      						break;
  53   5      					case 0xd0: num=5;
  54   5      						break;
  55   5      					case 0xb0: num=6;
C51 COMPILER V6.12  LESSON5_3                                                              01/27/2007 10:52:07 PAGE 2   

  56   5      						break;
  57   5      					case 0x70: num=7;
  58   5      						break;
  59   5      				
  60   5      				}
  61   4      			 }
  62   3      		 }
  63   2      
  64   2      		P3=0xfb;
  65   2      		temp=P3;
  66   2      		temp=temp&0xf0;
  67   2      		if(temp!=0xf0)
  68   2      		 {
  69   3      			delay(50);
  70   3      			if(temp!=0xf0)
  71   3      			 {
  72   4      				switch(temp)
  73   4      				{
  74   5      					case 0xe0: num=8;
  75   5      						break;
  76   5      					case 0xd0: num=9;
  77   5      						break;
  78   5      					case 0xb0: num=10;
  79   5      						break;
  80   5      					case 0x70: num=11;
  81   5      						break;
  82   5      				
  83   5      				}
  84   4      			 }
  85   3      		 }
  86   2      
  87   2      		P3=0xf7;
  88   2      		temp=P3;
  89   2      		temp=temp&0xf0;
  90   2      		if(temp!=0xf0)
  91   2      		 {
  92   3      			delay(50);
  93   3      			if(temp!=0xf0)
  94   3      			 {
  95   4      				switch(temp)
  96   4      				{
  97   5      					case 0xe0: num=12;
  98   5      						break;
  99   5      					case 0xd0: num=13;
 100   5      						break;
 101   5      					case 0xb0: num=14;
 102   5      						break;
 103   5      					case 0x70: num=15;
 104   5      						break;
 105   5      				
 106   5      				}
 107   4      			 }
 108   3      		 }
 109   2           display(num);
 110   2      	}
 111   1      }
 112          
 113          delay(uchar x)
 114          {
 115   1      	uchar a,b;
 116   1      	for(a=x;a>0;a--)
 117   1      	 for(b=200;b>0;b--);
C51 COMPILER V6.12  LESSON5_3                                                              01/27/2007 10:52:07 PAGE 3   

 118   1      }
 119          display(uchar num1)
 120          {
 121   1      	P0=table[num1];
 122   1      	dula=1;
 123   1      	dula=0;	
 124   1      	P0=0xc0;
 125   1      	wela=1;
 126   1      	wela=0;
 127   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    289    ----
   CONSTANT SIZE    =     16    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      2    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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