mcuio.lst

51单片机开发与应用技术详解(珍藏版)PPT及源码

C51 COMPILER V8.08   MCUIO                                                                 04/10/2008 16:32:37 PAGE 1   


C51 COMPILER V8.08, COMPILATION OF MODULE MCUIO
OBJECT MODULE PLACED IN MCUIO.OBJ
COMPILER INVOKED BY: C:\Program Files\keil\C51\BIN\C51.EXE MCUIO.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include <reg52.h>                                      //头文件
   2          #include <stdio.h>
   3          
   4          void main()                                             //主函数
   5          {
   6   1              int dataout=0;                                  //定义并初始化整型变量
   7   1              P1=0x0;                                         //并行端口初始化
   8   1              P3=0x0;                                         //扩展端口选择初始化
   9   1              while(1)                                                //主循环
  10   1              {
  11   2                      if (dataout ==0xFF)                     //如果dataout ==255，则dataout =0
  12   2                              dataout =0;
  13   2                      P1= dataout ++;                 //扩展端口PA输出
  14   2                      P3=0x0;
  15   2                      P1= dataout ++;                 //扩展端口PB输出
  16   2                      P3=0x01;
  17   2                      P1= dataout ++;                 //扩展端口PC输出
  18   2                      P3=0x02;
  19   2                      P1= dataout ++;                 //扩展端口PD输出
  20   2                      P3=0x03;
  21   2              }
  22   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     60    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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