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[/] [open8_urisc/] [trunk/] [gnu/] [binutils/] [gas/] [bignum.h] - Rev 198

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/* 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;
 

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