main.lst

《8051系列单片机C程序设计完全手册》的光盘中的所有源代码

C51 COMPILER V6.23a  MAIN                                                                  11/05/2002 21:44:41 PAGE 1   


C51 COMPILER V6.23a, COMPILATION OF MODULE MAIN
OBJECT MODULE PLACED IN main.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE main.c LARGE DEBUG OBJECTEXTEND

stmt level    source

   1          #include <REG52.H>                /* special function register declarations   */
   2                                            /* for the intended 8051 derivative         */
   3          
   4          #include <stdio.h>                /* prototype declarations for I/O functions */
   5          
   6          #ifdef MONITOR51                         /* Debugging with Monitor-51 needs   */
              char code reserve [3] _at_ 0x23;         /* space for serial interrupt if     */
              #endif                                   /* Stop Exection with Serial Intr.   */
   9                                                   /* is enabled                        */
  10          /*------------------------------------------------
  11          The main C function.  Program execution starts
  12          here after stack initialization.
  13          ------------------------------------------------*/
  14          void main (void) {
  15   1      
  16   1              int *p,m;
  17   1      /*------------------------------------------------
  18   1      Setup the serial port for 1200 baud at 16MHz.
  19   1      ------------------------------------------------*/
  20   1      #ifndef MONITOR51
  21   1          SCON  = 0x50;                       /* SCON: mode 1, 8-bit UART, enable rcvr      */
  22   1          TMOD |= 0x20;               /* TMOD: timer 1, mode 2, 8-bit reload        */
  23   1          TH1   = 221;                /* TH1:  reload value for 1200 baud @ 16MHz   */
  24   1          TR1   = 1;                  /* TR1:  timer 1 run                          */
  25   1          TI    = 1;                  /* TI:   set TI to send first char of UART    */
  26   1      #endif
  27   1      /*------------------------------------------------
  28   1      Note that an embedded program never exits (because
  29   1      there is no operating system to return to).  It
  30   1      must loop and execute forever.
  31   1      ------------------------------------------------*/
  32   1              printf("input a number:\n");
  33   1              scanf("%d",&m ) ;
  34   1              p=&m; /*指针p 指向变量m */
  35   1              printf("%d",*p);
  36   1              /*p 是对指针所指的变量的引用形式,与此m 意义相同*/
  37   1      
  38   1          while (1) {};
  39   1      }
  40          
  41          
  42          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     94    ----
   CONSTANT SIZE    =     20    ----
   XDATA SIZE       =   ----       5
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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