main.lst

8051单片机C语言设计完全手册

C51 COMPILER V6.23a  MAIN                                                                  11/20/2002 18:41:59 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          struct time
  11          {
  12                  int year;/*年*/
  13                  int month;/*月*/
  14                  int day;/*日*/
  15          } ;
  16          union dig
  17          {
  18                  struct time data1;/*嵌套的结构体类型*/
  19                  char byte[6];
  20          } ;
  21          /*------------------------------------------------
  22          The main C function.  Program execution starts
  23          here after stack initialization.
  24          ------------------------------------------------*/
  25          void main (void) {
  26   1      
  27   1              union dig unit;
  28   1              int i;
  29   1      /*------------------------------------------------
  30   1      Setup the serial port for 1200 baud at 16MHz.
  31   1      ------------------------------------------------*/
  32   1      #ifndef MONITOR51
  33   1          SCON  = 0x50;                       /* SCON: mode 1, 8-bit UART, enable rcvr      */
  34   1          TMOD |= 0x20;               /* TMOD: timer 1, mode 2, 8-bit reload        */
  35   1          TH1   = 221;                /* TH1:  reload value for 1200 baud @ 16MHz   */
  36   1          TR1   = 1;                  /* TR1:  timer 1 run                          */
  37   1          TI    = 1;                  /* TI:   set TI to send first char of UART    */
  38   1      #endif
  39   1      /*------------------------------------------------
  40   1      Note that an embedded program never exits (because
  41   1      there is no operating system to return to).  It
  42   1      must loop and execute forever.
  43   1      ------------------------------------------------*/
  44   1              printf("enter year:\n");
  45   1              scanf("%d",&unit.data1.year);/*输入年*/
  46   1              printf("enter month:\n");
  47   1              scanf("%d",&unit.data1.month);/*输入月*/
  48   1              printf("enter day:\n");
  49   1              scanf("%d",&unit.data1.day);/*输入日*/
  50   1              printf("year=%dmnh%day=%d\n",unit.data1.year,unit.data1.month,unit.data1.day);/*打印输出*/
  51   1              for(i=0;i<6;i++)
  52   1                      printf("%d,",unit.byte[i]);/*按字节以十进制输出*/
  53   1              printf("\n");
  54   1      
  55   1          while (1) {};
C51 COMPILER V6.23a  MAIN                                                                  11/20/2002 18:41:59 PAGE 2   

  56   1      }
  57          
  58          
  59          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    239    ----
   CONSTANT SIZE    =     67    ----
   XDATA SIZE       =   ----       8
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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