main.lst

8051系列单片机的输入输出口的c语言的简单的操作例程

C51 COMPILER V6.02  MAIN                                                                   11/11/2000 16:34:10 PAGE 1   


C51 COMPILER V6.02, COMPILATION OF MODULE MAIN
OBJECT MODULE PLACED IN .\main.OBJ
COMPILER INVOKED BY: C:\Keil2\C51\BIN\C51.EXE .\main.c DEBUG OBJECTEXTEND

stmt level    source

   1          sfr P1 = 0x90;          /* SFR definition for Port 1 */
   2          sfr P3 = 0xB0;          /* SFR definition for Port 3 */
   3          
   4          /*------------------------------------------------
   5          MAIN C Function
   6          ------------------------------------------------*/
   7          void main (void)
   8          {
   9   1      unsigned char pval;     /* temp variable for port values */
  10   1      
  11   1      P1 = 0xFF;              /* Setup P1 for Input */
  12   1      
  13   1      /*--------------------------------------
  14   1      Use the Toolbox buttons in the debugger
  15   1      to change the value of P1.  Open the
  16   1      Port 1 and Port 3 dialogs from the
  17   1      Peripherals Menu to view their status.
  18   1      --------------------------------------*/
  19   1      while (1)
  20   1        {
  21   2        pval = P1;            /* Read P1 into pval */
  22   2        P3 = pval;            /* Write pval to P3 */
  23   2        }
  24   1      }
  25          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =      9    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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