keytest.lst

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C51 COMPILER V8.02   KEYTEST                                                               08/19/2008 10:56:17 PAGE 1   


C51 COMPILER V8.02, COMPILATION OF MODULE KEYTEST
OBJECT MODULE PLACED IN keytest.OBJ
COMPILER INVOKED BY: C:\Keil\uv3\C51\BIN\C51.EXE keytest.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include"reg51.h"
   2          #define uchar unsigned char
   3          uchar keystu=0xff;
   4          sbit P10=P1^0;
   5          bit t10ms=0;
   6          uchar seg[]={0xfe,0xfd,0xfb,0xf7};
   7          //uchar i=0;
   8          
   9          delay()
  10          {
  11   1      uchar i,j;
  12   1      for(i=0;i<200;i++)
  13   1      for(j=0;j<200;j++);
  14   1      ;
  15   1      }init()
  16          {
  17   1      TMOD=0x1f;
  18   1      TR1=1;
  19   1      TL1=0x54;
  20   1      TH1=0xd9;
  21   1      ET1=1;
  22   1      EA=1;
  23   1      }
  24          
  25          uchar keyin()
  26          {
  27   1      if(P10==0)
  28   1      keystu=keystu<<1;
  29   1      return(keystu);
  30   1      } 
  31          
  32          /***************中断入口***************/
  33          void timer1() interrupt 3
  34          {
  35   1      //unchar t;
  36   1      TL1=0xd3;
  37   1      TH1=0x54;
  38   1      //TF1=0;
  39   1      t10ms=1;
  40   1      }
  41          
  42          void main()
  43          {
  44   1      uchar k,i=0;
  45   1      init();
  46   1      while(1)
  47   1      {
  48   2      if(t10ms)
  49   2      {
  50   3      t10ms=0;
  51   3      k=keyin();
  52   3      if(k<=0xfa||k==0xfc)
  53   3      {
  54   4      keystu=0xff;
  55   4      P2=seg[i];
C51 COMPILER V8.02   KEYTEST                                                               08/19/2008 10:56:17 PAGE 2   

  56   4      i++;
  57   4      delay();
  58   4      if(i==4)
  59   4      i=0;
  60   4      }
  61   3      }}}


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     95    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      5    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =      1    ----
END OF MODULE INFORMATION.


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