flonum-konst.c revision 1.2
1/* flonum_const.c - Useful Flonum constants 2 Copyright (C) 1987, 90, 91, 92, 93, 94, 95, 1996 3 Free Software Foundation, Inc. 4 5 This file is part of GAS, the GNU Assembler. 6 7 GAS is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 2, or (at your option) 10 any later version. 11 12 GAS is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with GAS; see the file COPYING. If not, write to the Free 19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 20 02111-1307, USA. */ 21 22#include <ansidecl.h> 23#include "flonum.h" 24/* JF: I added the last entry to this table, and I'm not 25 sure if its right or not. Could go either way. I wish 26 I really understood this stuff. */ 27 28 29const int table_size_of_flonum_powers_of_ten = 13; 30 31static const LITTLENUM_TYPE zero[] = 32{1}; 33 34/***********************************************************************\ 35 * * 36 * Warning: the low order bits may be WRONG here. * 37 * I took this from a suspect bc(1) script. * 38 * "minus_X"[] is supposed to be 10^(2^-X) expressed in base 2^16. * 39 * The radix point is just AFTER the highest element of the [] * 40 * * 41 * Because bc rounds DOWN for printing (I think), the lowest * 42 * significance littlenums should probably have 1 added to them. * 43 * * 44 \***********************************************************************/ 45 46/* JF: If this equals 6553/(2^16)+39321/(2^32)+... it approaches .1 */ 47static const LITTLENUM_TYPE minus_1[] = 48{ 49 39322, 39321, 39321, 39321, 39321, 39321, 39321, 39321, 39321, 39321, 50 39321, 39321, 39321, 39321, 39321, 39321, 39321, 39321, 39321, 6553}; 51static const LITTLENUM_TYPE plus_1[] = 52{10}; 53 54/* JF: If this equals 655/(2^16) + 23592/(2^32) + ... it approaches .01 */ 55static const LITTLENUM_TYPE minus_2[] = 56{ 57 10486, 36700, 62914, 23592, 49807, 10485, 36700, 62914, 23592, 49807, 58 10485, 36700, 62914, 23592, 49807, 10485, 36700, 62914, 23592, 655}; 59static const LITTLENUM_TYPE plus_2[] = 60{100}; 61 62/* This approaches .0001 */ 63static const LITTLENUM_TYPE minus_3[] = 64{ 65 52534, 20027, 37329, 65116, 64067, 60397, 14784, 18979, 33659, 19503, 66 2726, 9542, 629, 2202, 40475, 10590, 4299, 47815, 36280, 6}; 67static const LITTLENUM_TYPE plus_3[] = 68{10000}; 69 70/* JF: this approaches 1e-8 */ 71static const LITTLENUM_TYPE minus_4[] = 72{ 73 22517, 49501, 54293, 19424, 60699, 6716, 24348, 22618, 23904, 21327, 74 3919, 44703, 19149, 28803, 48959, 6259, 50273, 62237, 42}; 75/* This equals 1525 * 2^16 + 57600 */ 76static const LITTLENUM_TYPE plus_4[] = 77{57600, 1525}; 78 79/* This approaches 1e-16 */ 80static const LITTLENUM_TYPE minus_5[] = 81{ 82 22199, 45957, 17005, 26266, 10526, 16260, 55017, 35680, 40443, 19789, 83 17356, 30195, 55905, 28426, 63010, 44197, 1844}; 84static const LITTLENUM_TYPE plus_5[] = 85{28609, 34546, 35}; 86 87static const LITTLENUM_TYPE minus_6[] = 88{ 89 30926, 26518, 13110, 43018, 54982, 48258, 24658, 15209, 63366, 11929, 90 20069, 43857, 60487, 51}; 91static const LITTLENUM_TYPE plus_6[] = 92{61313, 34220, 16731, 11629, 1262}; 93 94static const LITTLENUM_TYPE minus_7[] = 95{ 96 29819, 14733, 21490, 40602, 31315, 65186, 2695}; 97static const LITTLENUM_TYPE plus_7[] = 98{ 99 7937, 49002, 60772, 28216, 38893, 55975, 63988, 59711, 20227, 24}; 100 101static const LITTLENUM_TYPE minus_8[] = 102{ 103 27579, 64807, 12543, 794, 13907, 61297, 12013, 64360, 15961, 20566, 104 24178, 15922, 59427, 110}; 105static const LITTLENUM_TYPE plus_8[] = 106{ 107 15873, 11925, 39177, 991, 14589, 3861, 58415, 9076, 62956, 54223, 108 56328, 50180, 45274, 48333, 32537, 42547, 9731, 59679, 590}; 109 110static const LITTLENUM_TYPE minus_9[] = 111{ 112 11042, 8464, 58971, 63429, 6022, 63485, 5500, 53464, 47545, 50068, 113 56988, 22819, 49708, 54493, 9920, 47667, 40409, 35764, 10383, 54466, 114 32702, 17493, 32420, 34382, 22750, 20681, 12300}; 115static const LITTLENUM_TYPE plus_9[] = 116{ 117 20678, 27614, 28272, 53066, 55311, 54677, 29038, 9906, 26288, 44486, 118 13860, 7445, 54106, 15426, 21518, 25599, 29632, 52309, 61207, 26105, 119 10482, 21948, 51191, 32988, 60892, 62574, 61390, 24540, 21495, 5}; 120 121static const LITTLENUM_TYPE minus_10[] = 122{ 123 6214, 48771, 23471, 30163, 31763, 38013, 57001, 11770, 18263, 36366, 124 20742, 45086, 56969, 53231, 37856, 55814, 38057, 15692, 46761, 8713, 125 6102, 20083, 8269, 11839, 11571, 50963, 15649, 11698, 40675, 2308}; 126static const LITTLENUM_TYPE plus_10[] = 127{ 128 63839, 36576, 45712, 44516, 37803, 29482, 4966, 30556, 37961, 23310, 129 27070, 44972, 29507, 48257, 45209, 7494, 17831, 38728, 41577, 29443, 130 36016, 7955, 35339, 35479, 36011, 14553, 49618, 5588, 25396, 28}; 131 132static const LITTLENUM_TYPE minus_11[] = 133{ 134 16663, 56882, 61983, 7804, 36555, 32060, 34502, 1000, 14356, 21681, 135 6605, 34767, 51411, 59048, 53614, 39850, 30079, 6496, 6846, 26841, 136 40778, 19578, 59899, 44085, 54016, 24259, 11232, 21229, 21313, 81}; 137static const LITTLENUM_TYPE plus_11[] = 138{ 139 92, 9054, 62707, 17993, 7821, 56838, 13992, 21321, 29637, 48426, 140 42982, 38668, 49574, 28820, 18200, 18927, 53979, 16219, 37484, 2516, 141 44642, 14665, 11587, 41926, 13556, 23956, 54320, 6661, 55766, 805}; 142 143static const LITTLENUM_TYPE minus_12[] = 144{ 145 33202, 45969, 58804, 56734, 16482, 26007, 44984, 49334, 31007, 32944, 146 44517, 63329, 47131, 15291, 59465, 2264, 23218, 11829, 59771, 38798, 147 31051, 28748, 23129, 40541, 41562, 35108, 50620, 59014, 51817, 6613}; 148static const LITTLENUM_TYPE plus_12[] = 149{ 150 10098, 37922, 58070, 7432, 10470, 63465, 23718, 62190, 47420, 7009, 151 38443, 4587, 45596, 38472, 52129, 52779, 29012, 13559, 48688, 31678, 152 41753, 58662, 10668, 36067, 29906, 56906, 21461, 46556, 59571, 9}; 153 154static const LITTLENUM_TYPE minus_13[] = 155{ 156 45309, 27592, 37144, 34637, 34328, 41671, 34620, 24135, 53401, 22112, 157 21576, 45147, 39310, 44051, 48572, 3676, 46544, 59768, 33350, 2323, 158 49524, 61568, 3903, 36487, 36356, 30903, 14975, 9035, 29715, 667}; 159static const LITTLENUM_TYPE plus_13[] = 160{ 161 18788, 16960, 6318, 45685, 55400, 46230, 35794, 25588, 7253, 55541, 162 49716, 59760, 63592, 8191, 63765, 58530, 44667, 13294, 10001, 55586, 163 47887, 18738, 9509, 40896, 42506, 52580, 4171, 325, 12329, 98}; 164 165/* Shut up complaints about differing pointer types. They only differ 166 in the const attribute, but there isn't any easy way to do this 167 */ 168#define X (LITTLENUM_TYPE *) 169 170const FLONUM_TYPE flonum_negative_powers_of_ten[] = 171{ 172 {X zero, X zero, X zero, 0, '+'}, 173 {X minus_1, X minus_1 + 19, X minus_1 + 19, -20, '+'}, 174 {X minus_2, X minus_2 + 19, X minus_2 + 19, -20, '+'}, 175 {X minus_3, X minus_3 + 19, X minus_3 + 19, -20, '+'}, 176 {X minus_4, X minus_4 + 18, X minus_4 + 18, -20, '+'}, 177 {X minus_5, X minus_5 + 16, X minus_5 + 16, -20, '+'}, 178 {X minus_6, X minus_6 + 13, X minus_6 + 13, -20, '+'}, 179 {X minus_7, X minus_7 + 6, X minus_7 + 6, -20, '+'}, 180 {X minus_8, X minus_8 + 13, X minus_8 + 13, -40, '+'}, 181 {X minus_9, X minus_9 + 26, X minus_9 + 26, -80, '+'}, 182 {X minus_10, X minus_10 + 29, X minus_10 + 29, -136, '+'}, 183 {X minus_11, X minus_11 + 29, X minus_11 + 29, -242, '+'}, 184 {X minus_12, X minus_12 + 29, X minus_12 + 29, -455, '+'}, 185 {X minus_13, X minus_13 + 29, X minus_13 + 29, -880, '+'}, 186}; 187 188const FLONUM_TYPE flonum_positive_powers_of_ten[] = 189{ 190 {X zero, X zero, X zero, 0, '+'}, 191 {X plus_1, X plus_1 + 0, X plus_1 + 0, 0, '+'}, 192 {X plus_2, X plus_2 + 0, X plus_2 + 0, 0, '+'}, 193 {X plus_3, X plus_3 + 0, X plus_3 + 0, 0, '+'}, 194 {X plus_4, X plus_4 + 1, X plus_4 + 1, 0, '+'}, 195 {X plus_5, X plus_5 + 2, X plus_5 + 2, 1, '+'}, 196 {X plus_6, X plus_6 + 4, X plus_6 + 4, 2, '+'}, 197 {X plus_7, X plus_7 + 9, X plus_7 + 9, 4, '+'}, 198 {X plus_8, X plus_8 + 18, X plus_8 + 18, 8, '+'}, 199 {X plus_9, X plus_9 + 29, X plus_9 + 29, 24, '+'}, 200 {X plus_10, X plus_10 + 29, X plus_10 + 29, 77, '+'}, 201 {X plus_11, X plus_11 + 29, X plus_11 + 29, 183, '+'}, 202 {X plus_12, X plus_12 + 29, X plus_12 + 29, 396, '+'}, 203 {X plus_13, X plus_13 + 29, X plus_13 + 29, 821, '+'}, 204}; 205 206#ifdef VMS 207void dummy1 () { } 208#endif 209/* end of flonum_const.c */ 210