ex1.lst

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C51 COMPILER V8.08   EX1                                                                   09/04/2008 15:32:44 PAGE 1   


C51 COMPILER V8.08, COMPILATION OF MODULE EX1
OBJECT MODULE PLACED IN ex1.OBJ
COMPILER INVOKED BY: C:\Program Files\keil\C51\BIN\C51.EXE ex1.C BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include <stdio.h>                                                              //头文件
   2          
   3          void main()                                                                     //主函数
   4          {
   5   1      struct btest                                                                    //声明位域
   6   1      {
   7   1      unsigned a:1;
   8   1      unsigned b:3;
   9   1      unsigned c:4;
  10   1      }mybtest,*pbit;                                                                 //声明位域变量和位域指针
  11   1      mybtest.a=1;                                                                    //位域变量赋值
  12   1      mybtest.b=7;                                                                    //位域变量赋值
  13   1      mybtest.c=15;                                                                   //位域变量赋值
  14   1      printf("%d,%d,%d\n",mybtest.a,mybtest.b,mybtest.c);     //输出结果
  15   1      pbit=&mybtest;                                                                          //位域指针赋值
  16   1      pbit->a=0;                                                                              //执行运算
  17   1      pbit->c|=1;
  18   1      pbit->b&=3;
  19   1      printf("%d,%d,%d\n",pbit->a,pbit->b,pbit->c);                   //输出结果
  20   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    265    ----
   CONSTANT SIZE    =     10    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----       5
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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