Subversion Repositories openrisc_2011-10-31

/* bignum.h-arbitrary precision integers

   Copyright 1987, 1992, 2003, 2005, 2007 Free Software Foundation, Inc.

   This file is part of GAS, the GNU Assembler.

   GAS 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.

   GAS 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.

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

   along with GAS; see the file COPYING.  If not, write to

   the Free Software Foundation, 51 Franklin Street - Fifth Floor,

   Boston, MA 02110-1301, USA.  */

/***********************************************************************\

 *                                                                      *

 *      Arbitrary-precision integer arithmetic.                         *

 *      For speed, we work in groups of bits, even though this          *

 *      complicates algorithms.                                         *

 *      Each group of bits is called a 'littlenum'.                     *

 *      A bunch of littlenums representing a (possibly large)           *

 *      integer is called a 'bignum'.                                   *

 *      Bignums are >= 0.                                               *

 *                                                                      *

 \***********************************************************************/

#define LITTLENUM_NUMBER_OF_BITS        (16)

#define LITTLENUM_RADIX                 (1 << LITTLENUM_NUMBER_OF_BITS)

#define LITTLENUM_MASK                  (0xFFFF)

#define LITTLENUM_SHIFT                 (1)

#define CHARS_PER_LITTLENUM             (1 << LITTLENUM_SHIFT)

#ifndef BITS_PER_CHAR

#define BITS_PER_CHAR                   (8)

#endif

typedef unsigned short LITTLENUM_TYPE;