1/* bignum.h-arbitrary precision integers
2   Copyright (C) 1987-2017 Free Software Foundation, Inc.
3
4   This file is part of GAS, the GNU Assembler.
5
6   GAS is free software; you can redistribute it and/or modify
7   it under the terms of the GNU General Public License as published by
8   the Free Software Foundation; either version 3, or (at your option)
9   any later version.
10
11   GAS is distributed in the hope that it will be useful, but WITHOUT
12   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
13   or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
14   License for more details.
15
16   You should have received a copy of the GNU General Public License
17   along with GAS; see the file COPYING.  If not, write to
18   the Free Software Foundation, 51 Franklin Street - Fifth Floor,
19   Boston, MA 02110-1301, USA.  */
20
21/***********************************************************************\
22 *									*
23 *	Arbitrary-precision integer arithmetic.				*
24 *	For speed, we work in groups of bits, even though this		*
25 *	complicates algorithms.						*
26 *	Each group of bits is called a 'littlenum'.			*
27 *	A bunch of littlenums representing a (possibly large)		*
28 *	integer is called a 'bignum'.					*
29 *	Bignums are >= 0.						*
30 *									*
31 \***********************************************************************/
32
33#define	LITTLENUM_NUMBER_OF_BITS	(16)
34#define	LITTLENUM_RADIX			(1 << LITTLENUM_NUMBER_OF_BITS)
35#define	LITTLENUM_MASK			(0xFFFF)
36#define LITTLENUM_SHIFT			(1)
37#define CHARS_PER_LITTLENUM		(1 << LITTLENUM_SHIFT)
38#ifndef BITS_PER_CHAR
39#define BITS_PER_CHAR			(8)
40#endif
41
42typedef unsigned short LITTLENUM_TYPE;
43