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/* libgcc routines for RL78

   Copyright (C) 2005, 2009, 2011

   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/>.  */

UINT_TYPE C3(__mul,NAME_MODE,3)   (UINT_TYPE, UINT_TYPE);

UINT_TYPE

C3(__mul,NAME_MODE,3) (UINT_TYPE a, UINT_TYPE b)

{

  UINT_TYPE rv = 0;

  char bit;

  for (bit=0; b && bit<sizeof(UINT_TYPE)*8; bit++)

    {

      if (b & 1)

        rv += a;

      a <<= 1;

      b >>= 1;

    }

  return rv;

}