ex1.lst

零基础单片机C语言设计全套教程

C51 COMPILER V8.08   EX1                                                                   09/04/2008 16:21:54 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 <setjmp.h>                                                             //头文件
   2          #include <stdio.h>
   3          
   4          jmp_buf env;                                                                    //环境变量
   5          bit error_flag;                                                                 //错误标志
   6          
   7          void trig(void)                                                                 //自定义函数
   8          {
   9   1        if (error_flag != 0) 
  10   1      {
  11   2          longjmp (env, 1);                                                   //向setjmp返回1
  12   2        }
  13   1      }
  14          
  15          void recover (void)                                                             //恢复函数
  16          {
  17   1      }
  18          
  19          void main (void)                                                                //主函数
  20          {
  21   1        if (setjmp (env) == 0)                                                        //首次调用setjmp将返回0
  22   1      { 
  23   2          printf ("Called SETJMP! \n");
  24   2          error_flag = 1;                                             //错误标志
  25   2          trig ();                                                                            //调用trig函数
  26   2        }
  27   1        else 
  28   1      {
  29   2          printf ("Called LONGJMP! \n");
  30   2          recover ();                                                                 //调用恢复函数
  31   2        }
  32   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     56    ----
   CONSTANT SIZE    =     35    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      7    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =      1    ----
END OF MODULE INFORMATION.


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