jianpan.lst

简单的LCD多级菜单显示

C51 COMPILER V7.50   JIANPAN                                                               08/29/2007 17:09:37 PAGE 1   


C51 COMPILER V7.50, COMPILATION OF MODULE JIANPAN
OBJECT MODULE PLACED IN jianpan.OBJ
COMPILER INVOKED BY: D:\keil\C51\BIN\C51.EXE jianpan.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include<reg52.h>
   2          #include<jianpan.h>
   3           void  delay()
   4            {
   5   1              char i;
   6   1              for(i=500;i>0;i--);
   7   1         }
   8           uchar keyscan()
   9          {
  10   1          uchar scode,recode;
  11   1              static uchar m;
  12   1          P0=0xf0;
  13   1              if ((P0&0xf0)!=0xf0)
  14   1               { 
  15   2                  delay();
  16   2                  if ((P0&0xf0)!=0xf0)                 
  17   2                   { 
  18   3                          scode=0xfe;
  19   3                          while((scode&0x10)!=0)  
  20   3                          { 
  21   4                             P0=scode;
  22   4                             if((P0&0xf0)!=0xf0)
  23   4                               { 
  24   5                                      recode=(P0&0xf0)|0x0f;
  25   5                                              m=(~scode)+(~recode);
  26   5                                      return (m);
  27   5                                   }
  28   4                            else 
  29   4                                        scode=(scode<<1)|0x01;
  30   4                          }
  31   3                   }
  32   2      
  33   2                }
  34   1         return(0);
  35   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     78    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      1    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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