interret.lst

全数字高清电视数字调谐器

C51 COMPILER V7.01  INTERRET                                                               08/17/2003 17:24:36 PAGE 1   


C51 COMPILER V7.01, COMPILATION OF MODULE INTERRET
OBJECT MODULE PLACED IN .\interret.OBJ
COMPILER INVOKED BY: C:\KEIL\C51\BIN\C51.EXE .\interret.c LARGE MODDP2 DEBUG OBJECTEXTEND

stmt level    source

   1          #include <w77e58.h>
   2          #include <stdio.h>
   3          #include<intrins.h>
   4          
   5          unsigned char pns;//中断次数
   6          unsigned int pnztime;//PAL/NTSC 时间
   7          bit pnds;//PAL/NTSC 判别完
   8          bit p_n;//P/N标志
   9          bit chan;//确定有电视信号
  10          
  11          bit pal_ntsc();
  12          void dely(unsigned int i);
  13          
  14          void extern_int1() interrupt 2 
  15          {
  16   1       pns++;
  17   1       if(pns==1)
  18   1       {
  19   2        TH0=100;
  20   2        TL0=100;
  21   2         TR0=1;
  22   2         ET0=1;  
  23   2         dely(800);
  24   2       }
  25   1      else if(pns==2){
  26   2         TR0=0;
  27   2         ET0=0; 
  28   2         pnds=1;
  29   2         chan=1;
  30   2         EX1=0;
  31   2       }
  32   1       else
  33   1       {
  34   2       pns=0;
  35   2       pnds=0;
  36   2       }
  37   1      }
  38          
  39          void time0() interrupt 1 using 1
  40          {
  41   1        pnztime++;
  42   1        if(pnztime>0x500)
  43   1         pnds=1;
  44   1      }
  45          
  46          bit pal_ntsc()
  47          {unsigned int i;
  48   1      i=0;
  49   1       pns=0;
  50   1       pnds=0;
  51   1       chan=0;
  52   1       pnztime=0;
  53   1       PX1=1;
  54   1       EX1=1;
  55   1       while(!pnds)
C51 COMPILER V7.01  INTERRET                                                               08/17/2003 17:24:36 PAGE 2   

  56   1           {
  57   2             i++;
  58   2              if(i>60000)
  59   2               pnds=1;
  60   2            }
  61   1       EX1=0;
  62   1       PX1=0;
  63   1       TR0=0;
  64   1       ET0=0; 
  65   1       if(pnztime<0x145)
  66   1             {
  67   2              p_n=1;
  68   2               printf("PAL/NTSC=%x,制式－NTSC\n",pnztime);
  69   2              }
  70   1       else {p_n=0;
  71   2              printf("PAL/NTSC=%x,制式－PAL\n",pnztime);
  72   2              }
  73   1              if(chan)
  74   1                 return(1);
  75   1              else return(0);   
  76   1      }
  77          
  78          void dely(unsigned int i)
  79          {
  80   1      for (;i!=0;i--)
  81   1          _nop_();
  82   1      
  83   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    342    ----
   CONSTANT SIZE    =     47    ----
   XDATA SIZE       =      3       2
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =      3    ----
END OF MODULE INFORMATION.


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