void
grub_memset (void *p, int c, grub_size_t len)
{
  grub_uint8_t pattern8 = c;
  if (len >= 3 * sizeof (unsigned long))
    {
      unsigned long patternl = 0;
      int i;
      for (i = 0; i < sizeof (unsigned long); i++)
	patternl |= ((unsigned long) pattern8) << (8 * i);
      while (len > 0 && (((grub_addr_t) p) & (sizeof (unsigned long) - 1)))
	{
	  *(grub_uint8_t *) p = pattern8;
	  p = (grub_uint8_t *) p + 1;
	}
      while (len >= sizeof (unsigned long))
	{
	  *(unsigned long *) p = patternl;
	  p = (unsigned long *) p + 1;
	}
    }
  while (len > 0)
    {
      *(grub_uint8_t *) p = pattern8;
      p = (grub_uint8_t *) p + 1;
    }
}