numled.lst

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C51 COMPILER V7.01  NUMLED                                                                 09/26/2002 12:09:55 PAGE 1   


C51 COMPILER V7.01, COMPILATION OF MODULE NUMLED
OBJECT MODULE PLACED IN numled.OBJ
COMPILER INVOKED BY: C:\KEIL\C51\BIN\C51.EXE numled.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          #include <AT89X52.H>
   2          /*    10us延时程序       */
   3          void delay_10us(void)
   4             {
   5   1              unsigned char i;
   6   1              for (i=0;i<1;i++)
   7   1                  ;
   8   1          }
   9          /*     ms级延时程序      */
  10          void delay_ms(unsigned int number)
  11             {
  12   1           unsigned char i;
  13   1           do
  14   1                 {
  15   2                  for(i=0;i<100;i++)
  16   2                           delay_10us();
  17   2                      }
  18   1               while(--number!=0);     
  19   1          }
  20          #define num_bit P1
  21          unsigned char xdata num_seg _at_ 0xf700;
  22          unsigned char code seg_tabel[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0x88,0x83,0xc6,0xa1,0x86
             -,0x8e};
  23          unsigned char idata led_buffer[6] _at_ 0x90;
  24          void display(void)
  25          {
  26   1       unsigned char i;
  27   1       for(i=0;i<6;i++)
  28   1        {
  29   2         num_seg=led_buffer[i];
  30   2         num_bit=~(0x04<<i);
  31   2         delay_ms(1);
  32   2         num_bit=0xff;
  33   2         num_seg=0xff;
  34   2        }
  35   1      }
  36          void main(void)
  37          {
  38   1       unsigned char i,j=6;
  39   1       for (i=0;i<6;i++)
  40   1         led_buffer[5-i]=seg_tabel[i];
  41   1       while(1)
  42   1        {
  43   2         for(i=0;i<200;i++)
  44   2             display();
  45   2         for (i=5;i>0;i--)
  46   2                 led_buffer[i]=led_buffer[i-1];
  47   2         led_buffer[0]=seg_tabel[j];
  48   2         if (j<15)
  49   2             j++;
  50   2         else
  51   2             j=0;
  52   2        }
  53   1      }

C51 COMPILER V7.01  NUMLED                                                                 09/26/2002 12:09:55 PAGE 2   


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    145    ----
   CONSTANT SIZE    =     16    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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