C51 COMPILER V7.50   MCUIO                                                                 12/12/2006 23:04:57 PAGE 1   


C51 COMPILER V7.50, 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 <reg51.h>                      //頭文件
   2          #include <stdio.h>
   3          
   4          void main()                                     //主函數(shù)
   5          {
   6   1              int i=0;                                //定義并初始化整型變量
   7   1              P1=0x0;                                 //并行端口初始化
   8   1              P3=0x0;                                 //擴(kuò)展端口選擇初始化
   9   1              while(1)                                //主循環(huán)
  10   1              {
  11   2                      if (i==0xFF)            //如果i==255，則i=0
  12   2                              i=0;
  13   2                      P1=i++;                         //擴(kuò)展端口PA輸出
  14   2                      P3=0x0;
  15   2                      P1=i++;                         //擴(kuò)展端口PB輸出
  16   2                      P3=0x01;
  17   2                      P1=i++;                         //擴(kuò)展端口PC輸出
  18   2                      P3=0x02;
  19   2                      P1=i++;                         //擴(kuò)展端口PD輸出
  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)