key.lst

0834实现数据的采集

C51 COMPILER V7.00  KEY                                                                    05/22/2007 16:53:20 PAGE 1   


C51 COMPILER V7.00, COMPILATION OF MODULE KEY
OBJECT MODULE PLACED IN Key.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE Key.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          #include  <reg52.h>
   2          #include<intrins.h>
   3          #define  uchar  unsigned  char
   4          #define  uint   unsigned  int
   5          #define  ulint  unsigned  long int
   6          sbit  ACC_0 =ACC^0;
   7          sbit  KeyButton =P1^6;
   8          sbit  Button1   =P2^0;
   9          #define  Keyio  P0
  10          uchar  code  Kconst=0x75;//1为重复输出，0不重复
  11          uchar  Kinput;
  12          uchar  Ktemp;
  13          uchar  Kstore;
  14          uchar  Kready;
  15          uchar  Koutput;
  16          
  17          /*code uchar value[16]=
  18          {
  19          0x01,0x02,0x03,0x0a,
  20          0x04,0x05,0x06,0x0b,
  21          0x07,0x08,0x09,0x0c,
  22          0x0e,0x00,0x0f,0x0d
  23          };    */
  24          
  25          uchar  Key(void)
  26          {
  27   1        uchar  i,temp;
  28   1        temp=0xfe;
  29   1        Kinput=0;
  30   1           for(i=0;i<8;i++)
  31   1           {
  32   2                 KeyButton=1;
  33   2                     Keyio=temp;
  34   2                 KeyButton=1;
  35   2                 KeyButton=1;
  36   2                 KeyButton=1;
  37   2                 KeyButton=1;
  38   2                 KeyButton=1; 
  39   2                 if(KeyButton==0)
  40   2                 Kinput|=(~Keyio);
  41   2                 temp=_crol_(temp,1);//不带进位的左移
  42   2             }
  43   1                 Button1=1;
  44   1                 if(Button1==0)
  45   1                 Kinput=0x3;
  46   1          Keyio=0xff;
  47   1          Kready=Ktemp&Kinput|Kready&(Ktemp^Kinput);
  48   1          Ktemp=Kinput;
  49   1      
  50   1      /*以下表示式用于输出重复键和非重复键*/
  51   1         if(Kready!=0x3)
  52   1         Koutput=Kready&(~Kstore|Kconst);
  53   1         else
  54   1         Koutput=Kready&(~Kstore);
  55   1      
C51 COMPILER V7.00  KEY                                                                    05/22/2007 16:53:20 PAGE 2   

  56   1         Kstore=Kready;
  57   1         return Koutput;
  58   1      }
  59          
  60          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     99    ----
   CONSTANT SIZE    =      1    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      5    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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