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  1. /* flonum_const.c - Useful Flonum constants
  2.    Copyright (C) 1987-2015 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 3, 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 the Free
  18.    Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
  19.    02110-1301, USA.  */
  20.  
  21. #include "ansidecl.h"
  22. #include "flonum.h"
  23. /* JF:  I added the last entry to this table, and I'm not
  24.    sure if its right or not.  Could go either way.  I wish
  25.    I really understood this stuff.  */
  26.  
  27. const int table_size_of_flonum_powers_of_ten = 13;
  28.  
  29. static const LITTLENUM_TYPE zero[] = {
  30.   1
  31. };
  32.  
  33. /***********************************************************************\
  34.  *                                                                      *
  35.  *      Warning: the low order bits may be WRONG here.                  *
  36.  *      I took this from a suspect bc(1) script.                        *
  37.  *      "minus_X"[] is supposed to be 10^(2^-X) expressed in base 2^16. *
  38.  *      The radix point is just AFTER the highest element of the []     *
  39.  *                                                                      *
  40.  *      Because bc rounds DOWN for printing (I think), the lowest       *
  41.  *      significance littlenums should probably have 1 added to them.   *
  42.  *                                                                      *
  43.  \***********************************************************************/
  44.  
  45. /* JF:  If this equals 6553/(2^16)+39321/(2^32)+...  it approaches .1 */
  46. static const LITTLENUM_TYPE minus_1[] = {
  47.   39322, 39321, 39321, 39321, 39321, 39321, 39321, 39321, 39321, 39321,
  48.   39321, 39321, 39321, 39321, 39321, 39321, 39321, 39321, 39321, 6553
  49. };
  50.  
  51. static const LITTLENUM_TYPE plus_1[] = {
  52.   10
  53. };
  54.  
  55. /* JF:  If this equals 655/(2^16) + 23592/(2^32) + ... it approaches .01 */
  56. static const LITTLENUM_TYPE minus_2[] = {
  57.   10486, 36700, 62914, 23592, 49807, 10485, 36700, 62914, 23592, 49807,
  58.   10485, 36700, 62914, 23592, 49807, 10485, 36700, 62914, 23592, 655
  59. };
  60.  
  61. static const LITTLENUM_TYPE plus_2[] = {
  62.   100
  63. };
  64.  
  65. /* This approaches .0001 */
  66. static const LITTLENUM_TYPE minus_3[] = {
  67.   52534, 20027, 37329, 65116, 64067, 60397, 14784, 18979, 33659, 19503,
  68.   2726, 9542, 629, 2202, 40475, 10590, 4299, 47815, 36280, 6
  69. };
  70.  
  71. static const LITTLENUM_TYPE plus_3[] = {
  72.   10000
  73. };
  74.  
  75. /* JF: this approaches 1e-8 */
  76. static const LITTLENUM_TYPE minus_4[] = {
  77.   22517, 49501, 54293, 19424, 60699, 6716, 24348, 22618, 23904, 21327,
  78.   3919, 44703, 19149, 28803, 48959, 6259, 50273, 62237, 42
  79. };
  80.  
  81. /* This equals 1525 * 2^16 + 57600 */
  82. static const LITTLENUM_TYPE plus_4[] = {
  83.   57600, 1525
  84. };
  85.  
  86. /* This approaches 1e-16 */
  87. static const LITTLENUM_TYPE minus_5[] = {
  88.   22199, 45957, 17005, 26266, 10526, 16260, 55017, 35680, 40443, 19789,
  89.   17356, 30195, 55905, 28426, 63010, 44197, 1844
  90. };
  91.  
  92. static const LITTLENUM_TYPE plus_5[] = {
  93.   28609, 34546, 35
  94. };
  95.  
  96. static const LITTLENUM_TYPE minus_6[] = {
  97.   30926, 26518, 13110, 43018, 54982, 48258, 24658, 15209, 63366, 11929,
  98.   20069, 43857, 60487, 51
  99. };
  100.  
  101. static const LITTLENUM_TYPE plus_6[] = {
  102.   61313, 34220, 16731, 11629, 1262
  103. };
  104.  
  105. static const LITTLENUM_TYPE minus_7[] = {
  106.   29819, 14733, 21490, 40602, 31315, 65186, 2695
  107. };
  108.  
  109. static const LITTLENUM_TYPE plus_7[] = {
  110.   7937, 49002, 60772, 28216, 38893, 55975, 63988, 59711, 20227, 24
  111. };
  112.  
  113. static const LITTLENUM_TYPE minus_8[] = {
  114.   27579, 64807, 12543, 794, 13907, 61297, 12013, 64360, 15961, 20566,
  115.   24178, 15922, 59427, 110
  116. };
  117.  
  118. static const LITTLENUM_TYPE plus_8[] = {
  119.   15873, 11925, 39177, 991, 14589, 3861, 58415, 9076, 62956, 54223,
  120.   56328, 50180, 45274, 48333, 32537, 42547, 9731, 59679, 590
  121. };
  122.  
  123. static const LITTLENUM_TYPE minus_9[] = {
  124.   11042, 8464, 58971, 63429, 6022, 63485, 5500, 53464, 47545, 50068,
  125.   56988, 22819, 49708, 54493, 9920, 47667, 40409, 35764, 10383, 54466,
  126.   32702, 17493, 32420, 34382, 22750, 20681, 12300
  127. };
  128.  
  129. static const LITTLENUM_TYPE plus_9[] = {
  130.   20678, 27614, 28272, 53066, 55311, 54677, 29038, 9906, 26288, 44486,
  131.   13860, 7445, 54106, 15426, 21518, 25599, 29632, 52309, 61207, 26105,
  132.   10482, 21948, 51191, 32988, 60892, 62574, 61390, 24540, 21495, 5
  133. };
  134.  
  135. static const LITTLENUM_TYPE minus_10[] = {
  136.   6214, 48771, 23471, 30163, 31763, 38013, 57001, 11770, 18263, 36366,
  137.   20742, 45086, 56969, 53231, 37856, 55814, 38057, 15692, 46761, 8713,
  138.   6102, 20083, 8269, 11839, 11571, 50963, 15649, 11698, 40675, 2308
  139. };
  140.  
  141. static const LITTLENUM_TYPE plus_10[] = {
  142.   63839, 36576, 45712, 44516, 37803, 29482, 4966, 30556, 37961, 23310,
  143.   27070, 44972, 29507, 48257, 45209, 7494, 17831, 38728, 41577, 29443,
  144.   36016, 7955, 35339, 35479, 36011, 14553, 49618, 5588, 25396, 28
  145. };
  146.  
  147. static const LITTLENUM_TYPE minus_11[] = {
  148.   16663, 56882, 61983, 7804, 36555, 32060, 34502, 1000, 14356, 21681,
  149.   6605, 34767, 51411, 59048, 53614, 39850, 30079, 6496, 6846, 26841,
  150.   40778, 19578, 59899, 44085, 54016, 24259, 11232, 21229, 21313, 81
  151. };
  152.  
  153. static const LITTLENUM_TYPE plus_11[] = {
  154.   92, 9054, 62707, 17993, 7821, 56838, 13992, 21321, 29637, 48426,
  155.   42982, 38668, 49574, 28820, 18200, 18927, 53979, 16219, 37484, 2516,
  156.   44642, 14665, 11587, 41926, 13556, 23956, 54320, 6661, 55766, 805
  157. };
  158.  
  159. static const LITTLENUM_TYPE minus_12[] = {
  160.   33202, 45969, 58804, 56734, 16482, 26007, 44984, 49334, 31007, 32944,
  161.   44517, 63329, 47131, 15291, 59465, 2264, 23218, 11829, 59771, 38798,
  162.   31051, 28748, 23129, 40541, 41562, 35108, 50620, 59014, 51817, 6613
  163. };
  164.  
  165. static const LITTLENUM_TYPE plus_12[] = {
  166.   10098, 37922, 58070, 7432, 10470, 63465, 23718, 62190, 47420, 7009,
  167.   38443, 4587, 45596, 38472, 52129, 52779, 29012, 13559, 48688, 31678,
  168.   41753, 58662, 10668, 36067, 29906, 56906, 21461, 46556, 59571, 9
  169. };
  170.  
  171. static const LITTLENUM_TYPE minus_13[] = {
  172.   45309, 27592, 37144, 34637, 34328, 41671, 34620, 24135, 53401, 22112,
  173.   21576, 45147, 39310, 44051, 48572, 3676, 46544, 59768, 33350, 2323,
  174.   49524, 61568, 3903, 36487, 36356, 30903, 14975, 9035, 29715, 667
  175. };
  176.  
  177. static const LITTLENUM_TYPE plus_13[] = {
  178.   18788, 16960, 6318, 45685, 55400, 46230, 35794, 25588, 7253, 55541,
  179.   49716, 59760, 63592, 8191, 63765, 58530, 44667, 13294, 10001, 55586,
  180.   47887, 18738, 9509, 40896, 42506, 52580, 4171, 325, 12329, 98
  181. };
  182.  
  183. /* Shut up complaints about differing pointer types.  They only differ
  184.    in the const attribute, but there isn't any easy way to do this
  185.    */
  186. #define X (LITTLENUM_TYPE *)
  187.  
  188. const FLONUM_TYPE flonum_negative_powers_of_ten[] = {
  189.   {X zero, X zero, X zero, 0, '+'},
  190.   {X minus_1, X minus_1 + 19, X minus_1 + 19, -20, '+'},
  191.   {X minus_2, X minus_2 + 19, X minus_2 + 19, -20, '+'},
  192.   {X minus_3, X minus_3 + 19, X minus_3 + 19, -20, '+'},
  193.   {X minus_4, X minus_4 + 18, X minus_4 + 18, -20, '+'},
  194.   {X minus_5, X minus_5 + 16, X minus_5 + 16, -20, '+'},
  195.   {X minus_6, X minus_6 + 13, X minus_6 + 13, -20, '+'},
  196.   {X minus_7, X minus_7 + 6, X minus_7 + 6, -20, '+'},
  197.   {X minus_8, X minus_8 + 13, X minus_8 + 13, -40, '+'},
  198.   {X minus_9, X minus_9 + 26, X minus_9 + 26, -80, '+'},
  199.   {X minus_10, X minus_10 + 29, X minus_10 + 29, -136, '+'},
  200.   {X minus_11, X minus_11 + 29, X minus_11 + 29, -242, '+'},
  201.   {X minus_12, X minus_12 + 29, X minus_12 + 29, -455, '+'},
  202.   {X minus_13, X minus_13 + 29, X minus_13 + 29, -880, '+'},
  203. };
  204.  
  205. const FLONUM_TYPE flonum_positive_powers_of_ten[] = {
  206.   {X zero, X zero, X zero, 0, '+'},
  207.   {X plus_1, X plus_1 + 0, X plus_1 + 0, 0, '+'},
  208.   {X plus_2, X plus_2 + 0, X plus_2 + 0, 0, '+'},
  209.   {X plus_3, X plus_3 + 0, X plus_3 + 0, 0, '+'},
  210.   {X plus_4, X plus_4 + 1, X plus_4 + 1, 0, '+'},
  211.   {X plus_5, X plus_5 + 2, X plus_5 + 2, 1, '+'},
  212.   {X plus_6, X plus_6 + 4, X plus_6 + 4, 2, '+'},
  213.   {X plus_7, X plus_7 + 9, X plus_7 + 9, 4, '+'},
  214.   {X plus_8, X plus_8 + 18, X plus_8 + 18, 8, '+'},
  215.   {X plus_9, X plus_9 + 29, X plus_9 + 29, 24, '+'},
  216.   {X plus_10, X plus_10 + 29, X plus_10 + 29, 77, '+'},
  217.   {X plus_11, X plus_11 + 29, X plus_11 + 29, 183, '+'},
  218.   {X plus_12, X plus_12 + 29, X plus_12 + 29, 396, '+'},
  219.   {X plus_13, X plus_13 + 29, X plus_13 + 29, 821, '+'},
  220. };
  221.  
  222. #ifdef VMS
  223. void
  224. dummy1 ()
  225. {
  226. }
  227. #endif
  228.