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/* libgcc routines for R8C/M16C/M32C

   Copyright (C) 2005, 2009

   Free Software Foundation, Inc.

   Contributed by Red Hat.

   This file is part of GCC.

   GCC 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.

   GCC 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/>.  */

typedef          int  sint32_type   __attribute__ ((mode (SI)));

typedef unsigned int  uint32_type   __attribute__ ((mode (SI)));

typedef int           word_type     __attribute__ ((mode (__word__)));

uint32_type udivmodsi4 (uint32_type, uint32_type, word_type);

sint32_type __divsi3   (sint32_type, sint32_type);

sint32_type __modsi3   (sint32_type, sint32_type);

uint32_type

udivmodsi4 (uint32_type num, uint32_type den, word_type modwanted)

{

  uint32_type bit = 1;

  uint32_type 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;

}

sint32_type

__divsi3 (sint32_type a, sint32_type b)

{

  word_type neg = 0;

  sint32_type res;

  if (a < 0)

    {

      a = -a;

      neg = !neg;

    }

  if (b < 0)

    {

      b = -b;

      neg = !neg;

    }

  res = udivmodsi4 (a, b, 0);

  if (neg)

    res = -res;

  return res;

}

sint32_type

__modsi3 (sint32_type a, sint32_type b)

{

  word_type neg = 0;

  sint32_type res;

  if (a < 0)

    {

      a = -a;

      neg = 1;

    }

  if (b < 0)

    b = -b;

  res = udivmodsi4 (a, b, 1);

  if (neg)

    res = -res;

  return res;

}

/* See the comment by the definition of LIBGCC2_UNITS_PER_WORD in

   m32c.h for why we are creating extra versions of some of the

   functions defined in libgcc2.c.  */

#define LIBGCC2_UNITS_PER_WORD 2

#define L_clzsi2

#define L_ctzsi2

#define L_ffssi2

#define L_paritysi2

#define L_popcountsi2

#include "libgcc2.c"

uint32_type

__udivsi3 (uint32_type a, uint32_type b)

{

  return udivmodsi4 (a, b, 0);

}

uint32_type

__umoddi3 (uint32_type a, uint32_type b)

{

  return udivmodsi4 (a, b, 1);

}