1/* flonum_const.c - Useful Flonum constants 2 Copyright 1987, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 2000, 2002 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 28const int table_size_of_flonum_powers_of_ten = 13; 29 30static const LITTLENUM_TYPE zero[] = { 31 1 32}; 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 39322, 39321, 39321, 39321, 39321, 39321, 39321, 39321, 39321, 39321, 49 39321, 39321, 39321, 39321, 39321, 39321, 39321, 39321, 39321, 6553 50}; 51 52static const LITTLENUM_TYPE plus_1[] = { 53 10 54}; 55 56/* JF: If this equals 655/(2^16) + 23592/(2^32) + ... it approaches .01 */ 57static const LITTLENUM_TYPE minus_2[] = { 58 10486, 36700, 62914, 23592, 49807, 10485, 36700, 62914, 23592, 49807, 59 10485, 36700, 62914, 23592, 49807, 10485, 36700, 62914, 23592, 655 60}; 61 62static const LITTLENUM_TYPE plus_2[] = { 63 100 64}; 65 66/* This approaches .0001 */ 67static const LITTLENUM_TYPE minus_3[] = { 68 52534, 20027, 37329, 65116, 64067, 60397, 14784, 18979, 33659, 19503, 69 2726, 9542, 629, 2202, 40475, 10590, 4299, 47815, 36280, 6 70}; 71 72static const LITTLENUM_TYPE plus_3[] = { 73 10000 74}; 75 76/* JF: this approaches 1e-8 */ 77static const LITTLENUM_TYPE minus_4[] = { 78 22517, 49501, 54293, 19424, 60699, 6716, 24348, 22618, 23904, 21327, 79 3919, 44703, 19149, 28803, 48959, 6259, 50273, 62237, 42 80}; 81 82/* This equals 1525 * 2^16 + 57600 */ 83static const LITTLENUM_TYPE plus_4[] = { 84 57600, 1525 85}; 86 87/* This approaches 1e-16 */ 88static const LITTLENUM_TYPE minus_5[] = { 89 22199, 45957, 17005, 26266, 10526, 16260, 55017, 35680, 40443, 19789, 90 17356, 30195, 55905, 28426, 63010, 44197, 1844 91}; 92 93static const LITTLENUM_TYPE plus_5[] = { 94 28609, 34546, 35 95}; 96 97static const LITTLENUM_TYPE minus_6[] = { 98 30926, 26518, 13110, 43018, 54982, 48258, 24658, 15209, 63366, 11929, 99 20069, 43857, 60487, 51 100}; 101 102static const LITTLENUM_TYPE plus_6[] = { 103 61313, 34220, 16731, 11629, 1262 104}; 105 106static const LITTLENUM_TYPE minus_7[] = { 107 29819, 14733, 21490, 40602, 31315, 65186, 2695 108}; 109 110static const LITTLENUM_TYPE plus_7[] = { 111 7937, 49002, 60772, 28216, 38893, 55975, 63988, 59711, 20227, 24 112}; 113 114static const LITTLENUM_TYPE minus_8[] = { 115 27579, 64807, 12543, 794, 13907, 61297, 12013, 64360, 15961, 20566, 116 24178, 15922, 59427, 110 117}; 118 119static const LITTLENUM_TYPE plus_8[] = { 120 15873, 11925, 39177, 991, 14589, 3861, 58415, 9076, 62956, 54223, 121 56328, 50180, 45274, 48333, 32537, 42547, 9731, 59679, 590 122}; 123 124static const LITTLENUM_TYPE minus_9[] = { 125 11042, 8464, 58971, 63429, 6022, 63485, 5500, 53464, 47545, 50068, 126 56988, 22819, 49708, 54493, 9920, 47667, 40409, 35764, 10383, 54466, 127 32702, 17493, 32420, 34382, 22750, 20681, 12300 128}; 129 130static const LITTLENUM_TYPE plus_9[] = { 131 20678, 27614, 28272, 53066, 55311, 54677, 29038, 9906, 26288, 44486, 132 13860, 7445, 54106, 15426, 21518, 25599, 29632, 52309, 61207, 26105, 133 10482, 21948, 51191, 32988, 60892, 62574, 61390, 24540, 21495, 5 134}; 135 136static const LITTLENUM_TYPE minus_10[] = { 137 6214, 48771, 23471, 30163, 31763, 38013, 57001, 11770, 18263, 36366, 138 20742, 45086, 56969, 53231, 37856, 55814, 38057, 15692, 46761, 8713, 139 6102, 20083, 8269, 11839, 11571, 50963, 15649, 11698, 40675, 2308 140}; 141 142static const LITTLENUM_TYPE plus_10[] = { 143 63839, 36576, 45712, 44516, 37803, 29482, 4966, 30556, 37961, 23310, 144 27070, 44972, 29507, 48257, 45209, 7494, 17831, 38728, 41577, 29443, 145 36016, 7955, 35339, 35479, 36011, 14553, 49618, 5588, 25396, 28 146}; 147 148static const LITTLENUM_TYPE minus_11[] = { 149 16663, 56882, 61983, 7804, 36555, 32060, 34502, 1000, 14356, 21681, 150 6605, 34767, 51411, 59048, 53614, 39850, 30079, 6496, 6846, 26841, 151 40778, 19578, 59899, 44085, 54016, 24259, 11232, 21229, 21313, 81 152}; 153 154static const LITTLENUM_TYPE plus_11[] = { 155 92, 9054, 62707, 17993, 7821, 56838, 13992, 21321, 29637, 48426, 156 42982, 38668, 49574, 28820, 18200, 18927, 53979, 16219, 37484, 2516, 157 44642, 14665, 11587, 41926, 13556, 23956, 54320, 6661, 55766, 805 158}; 159 160static const LITTLENUM_TYPE minus_12[] = { 161 33202, 45969, 58804, 56734, 16482, 26007, 44984, 49334, 31007, 32944, 162 44517, 63329, 47131, 15291, 59465, 2264, 23218, 11829, 59771, 38798, 163 31051, 28748, 23129, 40541, 41562, 35108, 50620, 59014, 51817, 6613 164}; 165 166static const LITTLENUM_TYPE plus_12[] = { 167 10098, 37922, 58070, 7432, 10470, 63465, 23718, 62190, 47420, 7009, 168 38443, 4587, 45596, 38472, 52129, 52779, 29012, 13559, 48688, 31678, 169 41753, 58662, 10668, 36067, 29906, 56906, 21461, 46556, 59571, 9 170}; 171 172static const LITTLENUM_TYPE minus_13[] = { 173 45309, 27592, 37144, 34637, 34328, 41671, 34620, 24135, 53401, 22112, 174 21576, 45147, 39310, 44051, 48572, 3676, 46544, 59768, 33350, 2323, 175 49524, 61568, 3903, 36487, 36356, 30903, 14975, 9035, 29715, 667 176}; 177 178static const LITTLENUM_TYPE plus_13[] = { 179 18788, 16960, 6318, 45685, 55400, 46230, 35794, 25588, 7253, 55541, 180 49716, 59760, 63592, 8191, 63765, 58530, 44667, 13294, 10001, 55586, 181 47887, 18738, 9509, 40896, 42506, 52580, 4171, 325, 12329, 98 182}; 183 184/* Shut up complaints about differing pointer types. They only differ 185 in the const attribute, but there isn't any easy way to do this 186 */ 187#define X (LITTLENUM_TYPE *) 188 189const FLONUM_TYPE flonum_negative_powers_of_ten[] = { 190 {X zero, X zero, X zero, 0, '+'}, 191 {X minus_1, X minus_1 + 19, X minus_1 + 19, -20, '+'}, 192 {X minus_2, X minus_2 + 19, X minus_2 + 19, -20, '+'}, 193 {X minus_3, X minus_3 + 19, X minus_3 + 19, -20, '+'}, 194 {X minus_4, X minus_4 + 18, X minus_4 + 18, -20, '+'}, 195 {X minus_5, X minus_5 + 16, X minus_5 + 16, -20, '+'}, 196 {X minus_6, X minus_6 + 13, X minus_6 + 13, -20, '+'}, 197 {X minus_7, X minus_7 + 6, X minus_7 + 6, -20, '+'}, 198 {X minus_8, X minus_8 + 13, X minus_8 + 13, -40, '+'}, 199 {X minus_9, X minus_9 + 26, X minus_9 + 26, -80, '+'}, 200 {X minus_10, X minus_10 + 29, X minus_10 + 29, -136, '+'}, 201 {X minus_11, X minus_11 + 29, X minus_11 + 29, -242, '+'}, 202 {X minus_12, X minus_12 + 29, X minus_12 + 29, -455, '+'}, 203 {X minus_13, X minus_13 + 29, X minus_13 + 29, -880, '+'}, 204}; 205 206const FLONUM_TYPE flonum_positive_powers_of_ten[] = { 207 {X zero, X zero, X zero, 0, '+'}, 208 {X plus_1, X plus_1 + 0, X plus_1 + 0, 0, '+'}, 209 {X plus_2, X plus_2 + 0, X plus_2 + 0, 0, '+'}, 210 {X plus_3, X plus_3 + 0, X plus_3 + 0, 0, '+'}, 211 {X plus_4, X plus_4 + 1, X plus_4 + 1, 0, '+'}, 212 {X plus_5, X plus_5 + 2, X plus_5 + 2, 1, '+'}, 213 {X plus_6, X plus_6 + 4, X plus_6 + 4, 2, '+'}, 214 {X plus_7, X plus_7 + 9, X plus_7 + 9, 4, '+'}, 215 {X plus_8, X plus_8 + 18, X plus_8 + 18, 8, '+'}, 216 {X plus_9, X plus_9 + 29, X plus_9 + 29, 24, '+'}, 217 {X plus_10, X plus_10 + 29, X plus_10 + 29, 77, '+'}, 218 {X plus_11, X plus_11 + 29, X plus_11 + 29, 183, '+'}, 219 {X plus_12, X plus_12 + 29, X plus_12 + 29, 396, '+'}, 220 {X plus_13, X plus_13 + 29, X plus_13 + 29, 821, '+'}, 221}; 222 223#ifdef VMS 224void 225dummy1 () 226{ 227} 228#endif 229