eepid

#include<stdio.h>

void main(){

  unsigned int a,hi,low,st,en,i,r,n,f;

  while(1)
  {
  printf("Input a PID(decimal) => ");
  scanf_s("%u",&a);

  hi = a >> 16;
  low = a & 0xFFFF;

  printf("PID: %u (0x%08X)\n",a,a);
  printf("high = %u (0x%04X)\n",hi,hi);
  printf("low = %u (0x%04X)\n",low,low);

  printf("Starting frame =>");
  scanf_s("%u",&st);
  printf("Ending frame =>");
  scanf_s("%u",&en);

  printf("Test 1\n");
  n=0; f=0;
  for(i=st;i<en;i++)
  {
    r = (i * 0x41C64E6D + 0x6073) &0xFFFFFFFF;

    if( (r >> 16) == hi)
    {
      printf("Frame: %u, PID: %u (0x%x)\n",i,r,r);
      f=i;
    }
  }

  printf("Test 2\n");

  r=0;

  for(i=0;i<st;i++)
  {
    r = (r * 0x41C64E6D + 0x6073) &0xFFFFFFFF;
  }

  for(i=st;i<en;i++)
  {
    r = (r * 0x41C64E6D + 0x6073) &0xFFFFFFFF;

    if( ((r >> 16) + 1) == low)
    {
      printf("Frame: %u, PID: %u (0x%x)\n",i,r,r);
      n=i;
    }

  }
    printf("Time(in frames): %u\n\n",n-f);
  }
}