1 /* flonum_const.c - Useful Flonum constants 2 Copyright 1987, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 2000, 2002, 3 2007 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 3, 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, 51 Franklin Street - Fifth Floor, Boston, MA 20 02110-1301, 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 const int table_size_of_flonum_powers_of_ten = 13; 29 30 static 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 */ 47 static 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 52 static const LITTLENUM_TYPE plus_1[] = { 53 10 54 }; 55 56 /* JF: If this equals 655/(2^16) + 23592/(2^32) + ... it approaches .01 */ 57 static 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 62 static const LITTLENUM_TYPE plus_2[] = { 63 100 64 }; 65 66 /* This approaches .0001 */ 67 static 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 72 static const LITTLENUM_TYPE plus_3[] = { 73 10000 74 }; 75 76 /* JF: this approaches 1e-8 */ 77 static 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 */ 83 static const LITTLENUM_TYPE plus_4[] = { 84 57600, 1525 85 }; 86 87 /* This approaches 1e-16 */ 88 static 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 93 static const LITTLENUM_TYPE plus_5[] = { 94 28609, 34546, 35 95 }; 96 97 static const LITTLENUM_TYPE minus_6[] = { 98 30926, 26518, 13110, 43018, 54982, 48258, 24658, 15209, 63366, 11929, 99 20069, 43857, 60487, 51 100 }; 101 102 static const LITTLENUM_TYPE plus_6[] = { 103 61313, 34220, 16731, 11629, 1262 104 }; 105 106 static const LITTLENUM_TYPE minus_7[] = { 107 29819, 14733, 21490, 40602, 31315, 65186, 2695 108 }; 109 110 static const LITTLENUM_TYPE plus_7[] = { 111 7937, 49002, 60772, 28216, 38893, 55975, 63988, 59711, 20227, 24 112 }; 113 114 static const LITTLENUM_TYPE minus_8[] = { 115 27579, 64807, 12543, 794, 13907, 61297, 12013, 64360, 15961, 20566, 116 24178, 15922, 59427, 110 117 }; 118 119 static 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 }; 123 124 static 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 }; 129 130 static 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 }; 135 136 static 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 }; 141 142 static 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 }; 147 148 static 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 }; 153 154 static 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 }; 159 160 static 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 }; 165 166 static 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 }; 171 172 static 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 }; 177 178 static 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 *) 188 189 const 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 }; 205 206 const 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 224 void 225 dummy1 () 226 { 227 } 228 #endif 229