bits1.lst

keil C51 Bits1 事例

C51 COMPILER V6.21  BITS1                                                                  12/10/2004 11:55:16 PAGE 1   


C51 COMPILER V6.21, COMPILATION OF MODULE BITS1
OBJECT MODULE PLACED IN bits1.OBJ
COMPILER INVOKED BY: d:\Keil\C51\BIN\C51.EXE bits1.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          /*------------------------------------------------------------------*-
   2          
   3             Bits1.C (v1.00)
   4          
   5            ------------------------------------------------------------------
   6          
   7             Reading and writing individual port pins.
   8          
   9             NOTE: Both pins on the same port
  10          
  11          
  12             COPYRIGHT
  13             ---------
  14          
  15             This code is associated with the book:
  16          
  17             EMBEDDED C by Michael J. Pont 
  18             [Pearson Education, 2002: ISBN: 0-201-79523-X].
  19          
  20             This code is copyright (c) 2001 by Michael J. Pont.
  21           
  22             See book for copyright details and other information.
  23          
  24          -*------------------------------------------------------------------*/
  25          
  26          #include <reg52.H>  
  27          
  28          sbit Switch_pin = P1^0;
  29          sbit LED_pin = P1^1;
  30          
  31          /* ............................................................... */
  32          
  33          void main (void)
  34             {
  35   1         bit x;
  36   1         
  37   1         // Set switch pin for reading
  38   1         Switch_pin = 1;
  39   1      
  40   1         while(1) 
  41   1           {
  42   2           x = Switch_pin;   // Read Port 1, Pin 0
  43   2           LED_pin = x;      // Write to Port 1, Pin 1
  44   2           }
  45   1         }
  46          
  47          /*------------------------------------------------------------------*-
  48            ---- END OF FILE -------------------------------------------------
  49          -*------------------------------------------------------------------*/


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     12    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
C51 COMPILER V6.21  BITS1                                                                  12/10/2004 11:55:16 PAGE 2   

   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----       1
END OF MODULE INFORMATION.


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