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| author | K. Richard Pixley <rich@cygnus> | 1991-04-04 18:19:53 +0000 |
|---|---|---|
| committer | K. Richard Pixley <rich@cygnus> | 1991-04-04 18:19:53 +0000 |
| commit | fecd2382e77b89f12c9d630ed4e42e9a54ba6953 (patch) | |
| tree | 6cddf76f492c3485605175c97c13d9a24c65306f /gas/bignum.h | |
| parent | b6fc45ca4c306a4f6f6bdbaf90a69d3dab62777a (diff) | |
| download | gdb-fecd2382e77b89f12c9d630ed4e42e9a54ba6953.zip gdb-fecd2382e77b89f12c9d630ed4e42e9a54ba6953.tar.gz gdb-fecd2382e77b89f12c9d630ed4e42e9a54ba6953.tar.bz2 | |
Initial revision
Diffstat (limited to 'gas/bignum.h')
| -rw-r--r-- | gas/bignum.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/gas/bignum.h b/gas/bignum.h new file mode 100644 index 0000000..9b1b8e8 --- /dev/null +++ b/gas/bignum.h @@ -0,0 +1,47 @@ +/* bignum.h-arbitrary precision integers + Copyright (C) 1987 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 1, 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, 675 Mass Ave, Cambridge, MA 02139, 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; + +/* JF truncated this to get around a problem with GCC */ +#define LOG_TO_BASE_2_OF_10 (3.3219280948873623478703194294893901758651 ) + /* WARNING: I haven't checked that the trailing digits are correct! */ + +/* end: bignum.h */ |