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                                                                  11/20/2002 01:17:34 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          #include <stdlib.h>
   6          #include <string.h>
   7          
   8          #ifdef MONITOR51                         /* Debugging with Monitor-51 needs   */
              char code reserve [3] _at_ 0x23;         /* space for serial interrupt if     */
              #endif                                   /* Stop Exection with Serial Intr.   */
  11                                                   /* is enabled                        */
  12          /*------------------------------------------------
  13          The main C function.  Program execution starts
  14          here after stack initialization.
  15          ------------------------------------------------*/
  16          void main (void) {
  17   1      
  18   1              char *ptr1[4],*temp;
  19   1              int i,j;
  20   1      /*------------------------------------------------
  21   1      Setup the serial port for 1200 baud at 16MHz.
  22   1      ------------------------------------------------*/
  23   1      #ifndef MONITOR51
  24   1          SCON  = 0x50;                       /* SCON: mode 1, 8-bit UART, enable rcvr      */
  25   1          TMOD |= 0x20;               /* TMOD: timer 1, mode 2, 8-bit reload        */
  26   1          TH1   = 221;                /* TH1:  reload value for 1200 baud @ 16MHz   */
  27   1          TR1   = 1;                  /* TR1:  timer 1 run                          */
  28   1          TI    = 1;                  /* TI:   set TI to send first char of UART    */
  29   1      #endif
  30   1      /*------------------------------------------------
  31   1      Note that an embedded program never exits (because
  32   1      there is no operating system to return to).  It
  33   1      must loop and execute forever.
  34   1      ------------------------------------------------*/
  35   1              init_mempool (0x1000,0x500);   
  36   1              for (i=0;i<4;i++)
  37   1              {
  38   2                      ptr1[i] = malloc(20) ;/*为指针数组各指针分配20字节的存储空间*/
  39   2                      gets(ptr1[i],20) ;
  40   2              }
  41   1              printf("\n") ;
  42   1              printf("original string:\n");
  43   1              for(i=0;i<4;i++)
  44   1                      printf("%s\n",ptr1[i]) ;
  45   1              printf("ordinal string:\n");
  46   1              for( i = 0 ; i < 3 ; i++)
  47   1                      for( j = 0 ; j < 4 - i - 1 ; j++)
  48   1                              if(strcmp(ptr1[j],ptr1[j+1])>0)
  49   1                              {
  50   2                                      temp=ptr1[j];/*利用指向字符串的指针，进行指针地址的交换*/
  51   2                                      ptr1[j]=ptr1[j+1] ;
  52   2                                      ptr1[j+1]=temp;
  53   2                              }
  54   1              for( i=0;i<4;i++)/*字符串输出*/
  55   1                      printf("%s\n" , ptr1[i]);
C51 COMPILER V6.23a  MAIN                                                                  11/20/2002 01:17:34 PAGE 2   

  56   1          while (1) {};
  57   1      }
  58          
  59          
  60          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    663    ----
   CONSTANT SIZE    =     41    ----
   XDATA SIZE       =   ----      19
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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