1*a9fa9459Szrj /* bignum.h-arbitrary precision integers 2*a9fa9459Szrj Copyright (C) 1987-2016 Free Software Foundation, Inc. 3*a9fa9459Szrj 4*a9fa9459Szrj This file is part of GAS, the GNU Assembler. 5*a9fa9459Szrj 6*a9fa9459Szrj GAS is free software; you can redistribute it and/or modify 7*a9fa9459Szrj it under the terms of the GNU General Public License as published by 8*a9fa9459Szrj the Free Software Foundation; either version 3, or (at your option) 9*a9fa9459Szrj any later version. 10*a9fa9459Szrj 11*a9fa9459Szrj GAS is distributed in the hope that it will be useful, but WITHOUT 12*a9fa9459Szrj ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 13*a9fa9459Szrj or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public 14*a9fa9459Szrj License for more details. 15*a9fa9459Szrj 16*a9fa9459Szrj You should have received a copy of the GNU General Public License 17*a9fa9459Szrj along with GAS; see the file COPYING. If not, write to 18*a9fa9459Szrj the Free Software Foundation, 51 Franklin Street - Fifth Floor, 19*a9fa9459Szrj Boston, MA 02110-1301, USA. */ 20*a9fa9459Szrj 21*a9fa9459Szrj /***********************************************************************\ 22*a9fa9459Szrj * * 23*a9fa9459Szrj * Arbitrary-precision integer arithmetic. * 24*a9fa9459Szrj * For speed, we work in groups of bits, even though this * 25*a9fa9459Szrj * complicates algorithms. * 26*a9fa9459Szrj * Each group of bits is called a 'littlenum'. * 27*a9fa9459Szrj * A bunch of littlenums representing a (possibly large) * 28*a9fa9459Szrj * integer is called a 'bignum'. * 29*a9fa9459Szrj * Bignums are >= 0. * 30*a9fa9459Szrj * * 31*a9fa9459Szrj \***********************************************************************/ 32*a9fa9459Szrj 33*a9fa9459Szrj #define LITTLENUM_NUMBER_OF_BITS (16) 34*a9fa9459Szrj #define LITTLENUM_RADIX (1 << LITTLENUM_NUMBER_OF_BITS) 35*a9fa9459Szrj #define LITTLENUM_MASK (0xFFFF) 36*a9fa9459Szrj #define LITTLENUM_SHIFT (1) 37*a9fa9459Szrj #define CHARS_PER_LITTLENUM (1 << LITTLENUM_SHIFT) 38*a9fa9459Szrj #ifndef BITS_PER_CHAR 39*a9fa9459Szrj #define BITS_PER_CHAR (8) 40*a9fa9459Szrj #endif 41*a9fa9459Szrj 42*a9fa9459Szrj typedef unsigned short LITTLENUM_TYPE; 43