main.lst

AT89C51单片机跑马灯,相应中断

C51 COMPILER V7.50   MAIN                                                                  05/20/2009 10:05:20 PAGE 1   


C51 COMPILER V7.50, COMPILATION OF MODULE MAIN
OBJECT MODULE PLACED IN main.OBJ
COMPILER INVOKED BY: C:\Program Files\Keil\C51\BIN\C51.EXE main.c DEBUG OBJECTEXTEND

line level    source

   1          #include <reg51.h>
   2          void int_0();
   3          void delay(int n)
   4          {
   5   1           int i,j;
   6   1               for (i=1;i<=n;i++)
   7   1                   for (j=1;j<=n;j++)
   8   1                           ;
   9   1      
  10   1      }
  11          int main(void)
  12          {
  13   1              char output;
  14   1              int i;
  15   1              EA=1;               // CPU所有中断开(IE最高位MSB)
  16   1              EX0=1;              // INT0中断开
  17   1              IT0=0;              // INT0低电平触发(为1则为下降沿触发)
  18   1              while(1)
  19   1              {
  20   2                      output = 0x01;
  21   2                      P0 = 0xff;
  22   2                      for (i = 0; i<8; i++)
  23   2                      {
  24   3                              P1 = output;
  25   3                              output = output << 1;
  26   3                              delay(100);
  27   3                      }
  28   2                      output = 0x7f;
  29   2                      P1 = 0;
  30   2                      for (i = 0; i<8; i++)
  31   2                      {
  32   3                              P0 = output;
  33   3                              output = (output >> 1) | 0x80;
  34   3                              delay(100);
  35   3                      }
  36   2              }
  37   1          return 0;
  38   1      }
  39          void int_0() interrupt 0 using 0
  40          {
  41   1           char output1,output2,i;
  42   1               output1 = 0x01;
  43   1           output2 = 0xfe;
  44   1           for (i = 0; i<8; i++)
  45   1               {
  46   2                      P1 = output1;
  47   2                      output1 = output1 << 1;
  48   2                      delay(100);
  49   2                      P1 = 0;
  50   2                      P0 = output2;
  51   2                      output2 = output2 << 1 | 0x01;
  52   2                      delay(100);
  53   2                      P0 = 0xff;
  54   2              }
  55   1      }
C51 COMPILER V7.50   MAIN                                                                  05/20/2009 10:05:20 PAGE 2   



MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    177    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----       2
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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