0,0 → 1,42 |
/* bignum.h-arbitrary precision integers |
Copyright 1987, 1992, 2003, 2005, 2007 Free Software Foundation, Inc. |
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This file is part of GAS, the GNU Assembler. |
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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. |
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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. */ |
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/***********************************************************************\ |
* * |
* 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. * |
* * |
\***********************************************************************/ |
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#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 |
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typedef unsigned short LITTLENUM_TYPE; |