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Annotation of GNUtools/cctools/as/bignum.h, revision 1.1

1.1     ! root        1: /* bignum.h-arbitrary precision integers
        !             2:    Copyright (C) 1987 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 1, or (at your option)
        !             9: any later version.
        !            10: 
        !            11: GAS is distributed in the hope that it will be useful,
        !            12: but WITHOUT ANY WARRANTY; without even the implied warranty of
        !            13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        !            14: GNU General Public 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, 675 Mass Ave, Cambridge, MA 02139, USA.  */
        !            19: 
        !            20: /***********************************************************************\
        !            21: *                                                                      *
        !            22: *      Arbitrary-precision integer arithmetic.                         *
        !            23: *      For speed, we work in groups of bits, even though this          *
        !            24: *      complicates algorithms.                                         *
        !            25: *      Each group of bits is called a 'littlenum'.                     *
        !            26: *      A bunch of littlenums representing a (possibly large)           *
        !            27: *      integer is called a 'bignum'.                                   *
        !            28: *      Bignums are >= 0.                                               *
        !            29: *                                                                      *
        !            30: \***********************************************************************/
        !            31: 
        !            32: #define        LITTLENUM_NUMBER_OF_BITS        (16)
        !            33: #define        LITTLENUM_RADIX                 (1 << LITTLENUM_NUMBER_OF_BITS)
        !            34: #define        LITTLENUM_MASK                  (0xFFFF)
        !            35: #define LITTLENUM_SHIFT                        (1)
        !            36: #define CHARS_PER_LITTLENUM            (1 << LITTLENUM_SHIFT)
        !            37: #ifndef BITS_PER_CHAR
        !            38: #define BITS_PER_CHAR                  (8)
        !            39: #endif
        !            40: 
        !            41: typedef unsigned short int     LITTLENUM_TYPE;
        !            42: 
        !            43: 
        !            44: /* JF truncated this to get around a problem with GCC */
        !            45: #define        LOG_TO_BASE_2_OF_10     (3.3219280948873623478703194294893901758651)
        !            46: /* WARNING: I haven't checked that the trailing digits are correct! */

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