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/* _udivmodsi4 for Lattice Mico32.

   Contributed by Jon Beniston <jon@beniston.com>

   Copyright (C) 2009 Free Software Foundation, Inc.

   This file is free software; you can redistribute it and/or modify it

   under the terms of the GNU General Public License as published by the

   Free Software Foundation; either version 3, or (at your option) any

   later version.

   This file is distributed in the hope that it will be useful, but

   WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

   General Public License for more details.

   Under Section 7 of GPL version 3, you are granted additional

   permissions described in the GCC Runtime Library Exception, version

   3.1, as published by the Free Software Foundation.

   You should have received a copy of the GNU General Public License and

   a copy of the GCC Runtime Library Exception along with this program;

   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see

   <http://www.gnu.org/licenses/>. */

#include "libgcc_lm32.h"

/* Unsigned integer division/modulus.  */

USItype

__udivmodsi4 (USItype num, USItype den, int modwanted)

{

  USItype bit = 1;

  USItype res = 0;

  while (den < num && bit && !(den & (1L << 31)))

    {

      den <<= 1;

      bit <<= 1;

    }

  while (bit)

    {

      if (num >= den)

        {

          num -= den;

          res |= bit;

        }

      bit >>= 1;

      den >>= 1;

    }

  if (modwanted)

    return num;

  return res;

}