162 lines
7.3 KiB
C
162 lines
7.3 KiB
C
/* flonum_const.c - Useful Flonum constants
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Copyright (C) 1987, 1990, 1991, 1992 Free Software Foundation, Inc.
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This file is part of GAS, the GNU Assembler.
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GAS is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GAS is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GAS; see the file COPYING. If not, write to
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the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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#ifndef lint
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static char rcsid[] = "$Id: flo-const.c,v 1.1 1993/11/03 00:51:32 paul Exp $";
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#endif
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#include "flonum.h"
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/* JF: I added the last entry to this table, and I'm not
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sure if its right or not. Could go either way. I wish
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I really understood this stuff. */
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const int table_size_of_flonum_powers_of_ten = 11;
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static const LITTLENUM_TYPE zero[] = { 1 };
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/***********************************************************************\
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* *
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* Warning: the low order bits may be WRONG here. *
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* I took this from a suspect bc(1) script. *
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* "minus_X"[] is supposed to be 10^(2^-X) expressed in base 2^16. *
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* The radix point is just AFTER the highest element of the [] *
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* *
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* Because bc rounds DOWN for printing (I think), the lowest *
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* significance littlenums should probably have 1 added to them. *
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* *
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\***********************************************************************/
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/* JF: If this equals 6553/(2^16)+39321/(2^32)+... it approaches .1 */
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static const LITTLENUM_TYPE minus_1[] = {
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39321, 39321, 39321, 39321, 39321, 39321, 39321, 39321, 39321, 39321,
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39321, 39321, 39321, 39321, 39321, 39321, 39321, 39321, 39321, 6553 };
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static const LITTLENUM_TYPE plus_1[] = { 10 };
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/* JF: If this equals 655/(2^16) + 23592/(2^32) + ... it approaches .01 */
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static const LITTLENUM_TYPE minus_2[] = {
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10485, 36700, 62914, 23592, 49807, 10485, 36700, 62914, 23592, 49807,
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10485, 36700, 62914, 23592, 49807, 10485, 36700, 62914, 23592, 655 };
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static const LITTLENUM_TYPE plus_2[] = { 100 };
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/* This approaches .0001 */
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static const LITTLENUM_TYPE minus_3[] = {
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52533, 20027, 37329, 65116, 64067, 60397, 14784, 18979, 33659, 19503,
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2726, 9542, 629, 2202, 40475, 10590, 4299, 47815, 36280, 6 };
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static const LITTLENUM_TYPE plus_3[] = { 10000 };
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/* JF: this approaches 1e-8 */
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static const LITTLENUM_TYPE minus_4[] = {
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22516, 49501, 54293, 19424, 60699, 6716, 24348, 22618, 23904, 21327,
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3919, 44703, 19149, 28803, 48959, 6259, 50273, 62237, 42 };
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/* This equals 1525 * 2^16 + 57600 */
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static const LITTLENUM_TYPE plus_4[] = { 57600, 1525 };
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/* This approaches 1e-16 */
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static const LITTLENUM_TYPE minus_5[] = {
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22199, 45957, 17005, 26266, 10526, 16260, 55017, 35680, 40443, 19789,
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17356, 30195, 55905, 28426, 63010, 44197, 1844 };
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static const LITTLENUM_TYPE plus_5[] = { 28609, 34546, 35 };
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static const LITTLENUM_TYPE minus_6[] = {
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30926, 26518, 13110, 43018, 54982, 48258, 24658, 15209, 63366, 11929,
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20069, 43857, 60487, 51 };
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static const LITTLENUM_TYPE plus_6[] = { 61313, 34220, 16731, 11629, 1262 };
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static const LITTLENUM_TYPE minus_7[] = {
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29819, 14733, 21490, 40602, 31315, 65186, 2695 };
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static const LITTLENUM_TYPE plus_7[] = {
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7937, 49002, 60772, 28216, 38893, 55975, 63988, 59711, 20227, 24 };
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static const LITTLENUM_TYPE minus_8[] = {
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45849, 19069, 18068, 36324, 37948, 48745, 10873, 64360, 15961, 20566,
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24178, 15922, 59427, 110 };
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static const LITTLENUM_TYPE plus_8[] = {
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15873, 11925, 39177, 991, 14589, 19735, 25347, 65086, 53853, 938,
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37209, 47086, 33626, 23253, 32586, 42547, 9731, 59679, 590 };
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static const LITTLENUM_TYPE minus_9[] = {
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63601, 55221, 43562, 33661, 29067, 28203, 65417, 64352, 22462, 41110,
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12570, 28635, 23199, 50572, 28471, 27074, 46375, 64028, 13106, 63700,
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32698, 17493, 32420, 34382, 22750, 20681, 12300 };
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static const LITTLENUM_TYPE plus_9[] = {
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63564, 61556, 29377, 54467, 18621, 28141, 36415, 61241, 47119, 30026,
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19740, 46002, 13541, 61413, 30480, 38664, 32205, 50593, 51112, 48904,
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48263, 43814, 286, 30826, 52813, 62575, 61390, 24540, 21495, 5 };
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static const LITTLENUM_TYPE minus_10[] = {
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50313, 34681, 1464, 25889, 19575, 41125, 17635, 4598, 49708, 13427,
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17287, 56115, 53783, 38255, 32415, 17778, 31596, 7557, 20951, 18477,
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40353, 1178, 44405, 11837, 11571, 50963, 15649, 11698, 40675, 2308, };
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static const LITTLENUM_TYPE plus_10[] = {
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18520, 53764, 54535, 61910, 61962, 59843, 46270, 58053, 12473, 63785,
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2449, 43230, 50044, 47595, 10403, 35766, 32607, 1124, 24966, 35044,
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25524, 23631, 18826, 14518, 58448, 14562, 49618, 5588, 25396, 28 };
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static const LITTLENUM_TYPE minus_11[] = {
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6223, 59909, 62437, 59960, 14652, 45336, 48800, 7647, 51962, 37982,
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60436, 58176, 26767, 8440, 9831, 48556, 20994, 14148, 6757, 17221,
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60624, 46129, 53210, 44085, 54016, 24259, 11232, 21229, 21313, 81, };
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static const LITTLENUM_TYPE plus_11[] = {
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36159, 2055, 33615, 61362, 23581, 62454, 9748, 15275, 39284, 58636,
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16269, 42793, 47240, 45774, 50861, 48400, 9413, 40281, 4030, 9572,
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7984, 33038, 59522, 19450, 40593, 24486, 54320, 6661, 55766, 805, };
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/* Shut up complaints about differing pointer types. They only differ
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in the const attribute, but there isn't any easy way to do this
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*/
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#define X (LITTLENUM_TYPE *)
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const FLONUM_TYPE flonum_negative_powers_of_ten[] = {
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{X zero, X zero, X zero, 0, '+'},
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{X minus_1, X minus_1 +19, X minus_1 + 19, -20, '+'},
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{X minus_2, X minus_2 +19, X minus_2 + 19, -20, '+'},
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{X minus_3, X minus_3 +19, X minus_3 + 19, -20, '+'},
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{X minus_4, X minus_4 +18, X minus_4 + 18, -20, '+'},
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{X minus_5, X minus_5 +16, X minus_5 + 16, -20, '+'},
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{X minus_6, X minus_6 +13, X minus_6 + 13, -20, '+'},
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{X minus_7, X minus_7 + 6, X minus_7 + 6, -20, '+'},
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{X minus_8, X minus_8 +13, X minus_8 + 13, -40, '+'},
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{X minus_9, X minus_9 +26, X minus_9 + 26, -80, '+'},
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{X minus_10, X minus_10+29, X minus_10 + 29,-136, '+'},
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{X minus_11, X minus_11+29, X minus_11 + 29,-242, '+'},
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};
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const FLONUM_TYPE flonum_positive_powers_of_ten[] = {
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{X zero, X zero, X zero, 0, '+'},
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{X plus_1, X plus_1 + 0, X plus_1 + 0, 0, '+'},
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{X plus_2, X plus_2 + 0, X plus_2 + 0, 0, '+'},
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{X plus_3, X plus_3 + 0, X plus_3 + 0, 0, '+'},
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{X plus_4, X plus_4 + 1, X plus_4 + 1, 0, '+'},
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{X plus_5, X plus_5 + 2, X plus_5 + 2, 1, '+'},
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{X plus_6, X plus_6 + 4, X plus_6 + 4, 2, '+'},
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{X plus_7, X plus_7 + 9, X plus_7 + 9, 4, '+'},
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{X plus_8, X plus_8 + 18, X plus_8 + 18, 8, '+'},
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{X plus_9, X plus_9 + 29, X plus_9 + 29, 24, '+'},
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{X plus_10, X plus_10 + 29, X plus_10 + 29, 77, '+'},
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{X plus_11, X plus_11 + 29, X plus_11 + 29, 183, '+'},
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};
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#ifdef HO_VMS
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dummy1()
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{
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}
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#endif
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/* end of flonum_const.c */
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