c8279s.lst

8279键盘单片机c语言编码

C51 COMPILER V8.02   C8279S                                                                07/29/2008 15:33:51 PAGE 1   


C51 COMPILER V8.02, COMPILATION OF MODULE C8279S
OBJECT MODULE PLACED IN c8279s.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE c8279s.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include<reg52.h>
   2          #include<absacc.h>
   3          
   4          #define COM  XBYTE[0xdfff]               //命令口
   5          #define DAT  XBYTE[0xdffe]               //数据口
   6          
   7          #define uchar unsigned char 
   8          
   9          uchar code table[]={ 0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,
  10                                                  0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71
  11                                                  };
  12          
  13          uchar idata diss[6]={0,1,2,3,4,5};
  14          
  15          sbit clflag=ACC^7;
  16          uchar keyin();
  17          uchar deky();
  18          void disp(uchar idata*d);
  19          
  20          void disp(uchar idata*d)
  21          {
  22   1               uchar i;
  23   1               for(i=0;i<6;i++)
  24   1               {
  25   2                      COM=i+0x80;
  26   2                      DAT=table[*d];
  27   2                      d++;
  28   2               }
  29   1      }
  30          
  31          
  32          uchar keyin(void)                            //取键值函数
  33          {
  34   1              uchar i;
  35   1              while(deky()==0);                   //无键按下等待
  36   1              COM=0x40;                                        //读FIFORAM 命令
  37   1              i=DAT;i=i&0x3f;                          //取键盘数据低6位
  38   1              return (i);
  39   1      }
  40          
  41          uchar deky(void)                                 //判FIFO有键按下命令
  42          {
  43   1       uchar k;
  44   1       k=COM;
  45   1       return(k&0x0f);                                 //非0 有键按下
  46   1      }
  47          
  48          void main(void)
  49          {
  50   1              uchar i;
  51   1              COM=0xd1;                                                //总清除命令
  52   1              do{ACC=COM;}while(clflag==1);    //等待清除结束
  53   1              COM=0x00;                                                //键盘、显示方式
  54   1              COM=0x2a;                                                //时钟分频
  55   1              while(1)
C51 COMPILER V8.02   C8279S                                                                07/29/2008 15:33:51 PAGE 2   

  56   1              {
  57   2                      for(i=0;i<6;i++)
  58   2                      {
  59   3                              disp(diss);                          //显示缓冲区内容
  60   3                              diss[i]=keyin();                 //键盘输入到显示缓冲
  61   3                      }
  62   2              }
  63   1              
  64   1      }
  65                                                  


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    102    ----
   CONSTANT SIZE    =     16    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----       1
   IDATA SIZE       =      6    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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