key3.lst

来自「单片及c语言轻松入门的随书光盘」· LST 代码 · 共 35 行

C51 COMPILER V7.06   KEY3                                                                  03/01/2006 14:57:21 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE KEY3
OBJECT MODULE PLACED IN KEY3.OBJ
COMPILER INVOKED BY: d:\Keil\C51\BIN\C51.EXE KEY3.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          /*按下K1点亮LED，按下K2熄灭LED，且K2优先，只要K2被按下LED就不能被点亮。*/
   2          #include "reg51.h"
   3          void main()
   4          {       for(;;)
   5   1              {       P3|=0x3c;
   6   2                      if((P3|0xf7)!=0xff)  /*如果K2被按下*/
   7   2                              P1=0xff;
   8   2                      else if((P3|0xfb)!=0xff) /*否则判断K1是否被按下*/
   9   2                              P1=0;
  10   2              }
  11   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     27    ----
   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)