cs19-3.lst

《手把手教你学单片机的C程序设计》及实验程序

C51 COMPILER V7.06   CS19_3                                                                02/18/2007 18:38:12 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE CS19_3
OBJECT MODULE PLACED IN CS19-3.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE CS19-3.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          #include<REG51.H>
   2          #define uchar unsigned char
   3          #define uint unsigned int
   4          uchar code DIS_SEG7[16]={0x3f,0x06,0x5b,0x4f,0x66,
   5                          0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};
   6          uchar code DIS_BIT[8]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};
   7          uchar code SKEY[16]={10,11,12,13,3,6,9,14,2,5,8,0,1,4,7,15};
   8          uchar code act[4]={0xfe,0xfd,0xfb,0xf7};
   9          //========================
  10          void delay10ms(void)
  11          {
  12   1      uint data i,j;
  13   1      for(i=0;i<10;i++){
  14   2      for(j=0;j<121;j++)
  15   2      {;}}
  16   1      }
  17          //=======================
  18          void delay(uint k)
  19          {
  20   1      uint data i,j;
  21   1      for(i=0;i<k;i++){
  22   2      for(j=0;j<121;j++)
  23   2      {;}}
  24   1      }
  25          //===========================
  26          char scan_key(void)
  27          {
  28   1      uchar i,j,in,ini,inj;
  29   1      bit find=0;
  30   1              for(i=0;i<4;i++)
  31   1              {
  32   2              P1=act[i];
  33   2              delay10ms();
  34   2              in=P1;
  35   2              in=in>>4;
  36   2              in=in|0xf0;
  37   2                      for(j=0;j<4;j++)
  38   2                      {
  39   3                        if(act[j]==in)
  40   3                        {find=1;
  41   4                        inj=j;ini=i;
  42   4                        }
  43   3                      }
  44   2              }
  45   1              if(find==0)return -1;
  46   1              return (ini*4+inj);
  47   1      }
  48          //============================
  49          void main(void)
  50          {       char c;
  51   1              uchar key_value;
  52   1              P0=0xff;P2=0xfe;
  53   1              while(1)
  54   1              {
  55   2                      delay(5000);
C51 COMPILER V7.06   CS19_3                                                                02/18/2007 18:38:12 PAGE 2   

  56   2                      c=scan_key();
  57   2                      if(c!=-1)key_value=SKEY[c];
  58   2                      if(key_value==1){P0=0xff;P2=0xff;}
  59   2                      
  60   2              }
  61   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    175    ----
   CONSTANT SIZE    =     44    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----       1
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----       1
END OF MODULE INFORMATION.


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