ex02.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  EX02                                                                  11/05/2002 19:48:36 PAGE 1   


C51 COMPILER V6.23a, COMPILATION OF MODULE EX02
OBJECT MODULE PLACED IN ex02.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE ex02.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          /* 对fahr = 0, 20, ..., 300
  18          打印华氏温度与摄氏温度对照表*/
  19          void main (void) {
  20   1      
  21   1      int fahr, celsius;
  22   1      int lower, upper, step;
  23   1      
  24   1      /*------------------------------------------------
  25   1      Setup the serial port for 1200 baud at 16MHz.
  26   1      ------------------------------------------------*/
  27   1      #ifndef MONITOR51
  28   1          SCON  = 0x50;                       /* SCON: mode 1, 8-bit UART, enable rcvr      */
  29   1          TMOD |= 0x20;               /* TMOD: timer 1, mode 2, 8-bit reload        */
  30   1          TH1   = 221;                /* TH1:  reload value for 1200 baud @ 16MHz   */
  31   1          TR1   = 1;                  /* TR1:  timer 1 run                          */
  32   1          TI    = 1;                  /* TI:   set TI to send first char of UART    */
  33   1      #endif
  34   1      
  35   1      /*------------------------------------------------
  36   1      Note that an embedded program never exits (because
  37   1      there is no operating system to return to).  It
  38   1      must loop and execute forever.
  39   1      ------------------------------------------------*/
  40   1              lower = 0; /* 温度表的下限*/
  41   1              upper = 300 ; /* 温度表的上限*/
  42   1              step = 20; /* 步长*/
  43   1              fahr = lower;
  44   1              while (fahr <= upper) {
  45   2                      celsius = 5 * (fahr-32) / 9;
  46   2                      printf("%d\t%d\n", fahr, celsius);
  47   2                      fahr = fahr + step;
  48   2              }
  49   1              while(1);
  50   1      }
  51          
  52          


MODULE INFORMATION:   STATIC OVERLAYABLE
C51 COMPILER V6.23a  EX02                                                                  11/05/2002 19:48:36 PAGE 2   

   CODE SIZE        =    109    ----
   CONSTANT SIZE    =      7    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----       8
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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