ex06.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  EX06                                                                  11/05/2002 20:30:57 PAGE 1   


C51 COMPILER V6.23a, COMPILATION OF MODULE EX06
OBJECT MODULE PLACED IN ex06.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE ex06.c 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          
   7          #ifdef MONITOR51                         /* Debugging with Monitor-51 needs   */
              char code reserve [3] _at_ 0x23;         /* space for serial interrupt if     */
              #endif                                   /* Stop Exection with Serial Intr.   */
  10                                                   /* is enabled                        */
  11          
  12          
  13          /*------------------------------------------------
  14          The main C function.  Program execution starts
  15          here after stack initialization.
  16          ------------------------------------------------*/
  17          void main (void) {
  18   1      
  19   1              int a,b,c,d; /*指定a , b , c , d 为整型变量*/
  20   1              unsigned u; /*指定u 为无符号整型变量*/
  21   1      /*------------------------------------------------
  22   1      Setup the serial port for 1200 baud at 16MHz.
  23   1      ------------------------------------------------*/
  24   1      #ifndef MONITOR51
  25   1          SCON  = 0x50;                       /* SCON: mode 1, 8-bit UART, enable rcvr      */
  26   1          TMOD |= 0x20;               /* TMOD: timer 1, mode 2, 8-bit reload        */
  27   1          TH1   = 221;                /* TH1:  reload value for 1200 baud @ 16MHz   */
  28   1          TR1   = 1;                  /* TR1:  timer 1 run                          */
  29   1          TI    = 1;                  /* TI:   set TI to send first char of UART    */
  30   1      #endif
  31   1      
  32   1      /*------------------------------------------------
  33   1      Note that an embedded program never exits (because
  34   1      there is no operating system to return to).  It
  35   1      must loop and execute forever.
  36   1      ------------------------------------------------*/
  37   1              a=12; b=-24; u=10;
  38   1              c=a+u; d=b+u;
  39   1              printf("a+u=%d, b+u=%d\n",c,d);
  40   1          while (1) {};
  41   1      }
  42          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     50    ----
   CONSTANT SIZE    =     16    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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