lesson5_1.lst

按键处理程序

C51 COMPILER V6.12  LESSON5_1                                                              01/27/2007 09:24:38 PAGE 1   


C51 COMPILER V6.12, COMPILATION OF MODULE LESSON5_1
OBJECT MODULE PLACED IN .\lesson5_1.OBJ
COMPILER INVOKED BY: D:\Program Files\Keil\C51\BIN\C51.EXE .\lesson5_1.c DEBUG OBJECTEXTEND

stmt level    source

   1          #include<reg52.h>
   2          sbit key=P3^4;
   3          sbit light1=P1^7;
   4          sbit dula=P2^6;
   5          sbit wela=P2^7;
   6          #define uchar unsigned char
   7          #define uint unsigned int
   8          uchar code table[]={
   9          0x3f,0x06,0x5b,0x4f,0x66,0x6d,
  10          0x7d,0x07,0x7f,0x6f,0x77};
  11          uchar num;
  12          display(uchar );
  13          delay(uchar);
  14          void main()
  15          {
  16   1      	P0=0xc0;
  17   1      	wela=1;
  18   1      	wela=0;
  19   1      	while(1)
  20   1      	{
  21   2      		if(key==0)
  22   2      		   {
  23   3      			 delay(50);	 
  24   3      			if(key==0)
  25   3      			 {
  26   4      			   if(num==9)
  27   4      			     num=0;
  28   4      		       else
  29   4      			     num++;
  30   4      			   while(!key);
  31   4      			 }
  32   3       		   }
  33   2      		display(num);
  34   2      	}
  35   1      }
  36          
  37          display(uchar num1)
  38          {
  39   1      	P0=table[num1];
  40   1      	dula=1;
  41   1      	dula=0;	
  42   1      }
  43          
  44          delay(uchar x)
  45          {
  46   1      	uchar a,b;
  47   1      	for(a=x;a>0;a--)
  48   1      	 for(b=200;b>0;b--);
  49   1      }
  50          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     66    ----
   CONSTANT SIZE    =     11    ----
C51 COMPILER V6.12  LESSON5_1                                                              01/27/2007 09:24:38 PAGE 2   

   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      1    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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