ttestbit.lst

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C51 COMPILER V7.06   TTESTBIT                                                              06/19/2006 16:47:21 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE TTESTBIT
OBJECT MODULE PLACED IN ttestbit.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE ttestbit.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          #include <reg52.h>
   2          #include <intrins.h>
   3          #include <stdio.h> /* 为使用printf函数而加入 */
   4          void tst_testbit (void){
   5   1              bit test_flag=1;        //将值由1改为0或由0改为1可以看到不同的效果
   6   1              if (_testbit_ (test_flag))
   7   1                      printf ("Bit was set\n");
   8   1              else
   9   1                      printf ("Bit was clear\n");
  10   1      }void main()
  11          {       SCON  = 0x50;    /*SCON:工作模式1，8-bit UART，允许接收*/
  12   1              TMOD |= 0x20;    /*TMOD：定时器T1，工作模式2, 8位自动重载方式*/
  13   1              TH1   = 0xf3;    /*当波特率为2400时，定时器初值*/
  14   1              TR1   = 1;       /*定时器T1开始运行*/
  15   1              TI    = 1;       /*允许发送数据*/
  16   1              for(;;)
  17   1                      tst_testbit();
  18   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     43    ----
   CONSTANT SIZE    =     28    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----       1
END OF MODULE INFORMATION.


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