changeorigin() [2/2]

Int changeorigin	(	Int	myp,
		Int	sp,
		Int	p,
		Int	bs,
		Int	i,
		Int *	decal,
		Int *	newsp
	)

Definition at line 250 of file pgemraux.c.

{
  Int   tempheight, firstblock, firsttemp;
  /* we begin by changing the parameters so that ia < templatewidth,... */
  tempheight = bs * p;
  firsttemp = i / tempheight;
  firstblock = (i / bs) % p;
  *newsp = (sp + firstblock) % p;
  if (myp >= 0)
    *decal = firsttemp * bs + (SHIFT(myp, sp, p) < firstblock ? bs : 0);
  else
    *decal = 0;
  return i % bs;
}