3-8.lst

一些简单的c51程序

C51 COMPILER V7.09   3_8                                                                   08/25/2005 09:46:36 PAGE 1   


C51 COMPILER V7.09, COMPILATION OF MODULE 3_8
OBJECT MODULE PLACED IN 3-8.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE 3-8.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include <REG52.H>              
   2          #include <stdio.h>                
   3          #include <math.h>
   4          void main (void) {
   5   1      
   6   1              double pi,t;
   7   1              long int n,s;
   8   1      t=1.0;
   9   1              n=1;
  10   1              s=1;
  11   1              pi=0.0;
  12   1      
  13   1              SCON = 0x50; 
  14   1      TMOD |= 0x20; 
  15   1      TH1 = 0xf3; 
  16   1      TR1 = 1;
  17   1      TI = 1; 
  18   1              while(fabs(t)>=1e-6)
  19   1              {
  20   2                      pi=pi+t;
  21   2                      n=n+2;
  22   2                      s=-s;
  23   2                      t=(float)(s)/(float)(n);
  24   2              }
  25   1              pi=pi*4.0; 
  26   1              printf("pi=%lf\n",pi);
  27   1          while (1) {};
  28   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    242    ----
   CONSTANT SIZE    =      8    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----      16
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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