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, 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
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