7-3.lst

单片机C51的学习程序,内包含大部分的功能学习,适合初学者用.

C51 COMPILER V7.50   7_3                                                                   06/16/2006 14:27:15 PAGE 1   


C51 COMPILER V7.50, COMPILATION OF MODULE 7_3
OBJECT MODULE PLACED IN 7-3.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE 7-3.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include <stdio.h>
   2          #include <reg51.h>
   3                const double PI=3.14159;
   4               double area(double);                 
   5          void main( )
   6          
   7                {
   8   1            double r,s; 
   9   1      
  10   1                 SCON = 0x50; 
  11   1      TMOD |= 0x20; 
  12   1      TH1 = TL1=0xfd; 
  13   1      TR1 = 1;
  14   1      TI = 1; 
  15   1                
  16   1                                    
  17   1            printf( "请输入半径：" );
  18   1            scanf("%lf",&r);
  19   1            s=area(r);                   
  20   1           printf("圆的面积是：%lf\n ",s); 
  21   1            }
  22          
  23               double area(double r)                      //本函数计算圆的面积
  24                   {
  25   1           return (PI*r*r);
  26   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    102    ----
   CONSTANT SIZE    =     34    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      4       8
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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