1 /* flonum_const.c - Useful Flonum constants
2 Copyright (C) 1987, 1990, 1991, 1992 Free Software Foundation, Inc.
4 This file is part of GAS, the GNU Assembler.
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 2, or (at your option)
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.
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
18 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
21 * $FreeBSD: src/gnu/usr.bin/as/flo-const.c,v 1.5 1999/08/27 23:34:14 peter Exp $
22 * $DragonFly: src/gnu/usr.bin/as/Attic/flo-const.c,v 1.2 2003/06/17 04:25:44 dillon Exp $
25 /* JF: I added the last entry to this table, and I'm not
26 sure if its right or not. Could go either way. I wish
27 I really understood this stuff. */
30 const int table_size_of_flonum_powers_of_ten = 11;
32 static const LITTLENUM_TYPE zero[] = { 1 };
34 /***********************************************************************\
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 [] *
41 * Because bc rounds DOWN for printing (I think), the lowest *
42 * significance littlenums should probably have 1 added to them. *
44 \***********************************************************************/
46 /* JF: If this equals 6553/(2^16)+39321/(2^32)+... it approaches .1 */
47 static const LITTLENUM_TYPE minus_1[] = {
48 39321, 39321, 39321, 39321, 39321, 39321, 39321, 39321, 39321, 39321,
49 39321, 39321, 39321, 39321, 39321, 39321, 39321, 39321, 39321, 6553 };
50 static const LITTLENUM_TYPE plus_1[] = { 10 };
52 /* JF: If this equals 655/(2^16) + 23592/(2^32) + ... it approaches .01 */
53 static const LITTLENUM_TYPE minus_2[] = {
54 10485, 36700, 62914, 23592, 49807, 10485, 36700, 62914, 23592, 49807,
55 10485, 36700, 62914, 23592, 49807, 10485, 36700, 62914, 23592, 655 };
56 static const LITTLENUM_TYPE plus_2[] = { 100 };
58 /* This approaches .0001 */
59 static const LITTLENUM_TYPE minus_3[] = {
60 52533, 20027, 37329, 65116, 64067, 60397, 14784, 18979, 33659, 19503,
61 2726, 9542, 629, 2202, 40475, 10590, 4299, 47815, 36280, 6 };
62 static const LITTLENUM_TYPE plus_3[] = { 10000 };
64 /* JF: this approaches 1e-8 */
65 static const LITTLENUM_TYPE minus_4[] = {
66 22516, 49501, 54293, 19424, 60699, 6716, 24348, 22618, 23904, 21327,
67 3919, 44703, 19149, 28803, 48959, 6259, 50273, 62237, 42 };
68 /* This equals 1525 * 2^16 + 57600 */
69 static const LITTLENUM_TYPE plus_4[] = { 57600, 1525 };
71 /* This approaches 1e-16 */
72 static const LITTLENUM_TYPE minus_5[] = {
73 22199, 45957, 17005, 26266, 10526, 16260, 55017, 35680, 40443, 19789,
74 17356, 30195, 55905, 28426, 63010, 44197, 1844 };
75 static const LITTLENUM_TYPE plus_5[] = { 28609, 34546, 35 };
77 static const LITTLENUM_TYPE minus_6[] = {
78 30926, 26518, 13110, 43018, 54982, 48258, 24658, 15209, 63366, 11929,
79 20069, 43857, 60487, 51 };
80 static const LITTLENUM_TYPE plus_6[] = { 61313, 34220, 16731, 11629, 1262 };
82 static const LITTLENUM_TYPE minus_7[] = {
83 29819, 14733, 21490, 40602, 31315, 65186, 2695 };
84 static const LITTLENUM_TYPE plus_7[] = {
85 7937, 49002, 60772, 28216, 38893, 55975, 63988, 59711, 20227, 24 };
87 static const LITTLENUM_TYPE minus_8[] = {
88 45849, 19069, 18068, 36324, 37948, 48745, 10873, 64360, 15961, 20566,
89 24178, 15922, 59427, 110 };
90 static const LITTLENUM_TYPE plus_8[] = {
91 15873, 11925, 39177, 991, 14589, 19735, 25347, 65086, 53853, 938,
92 37209, 47086, 33626, 23253, 32586, 42547, 9731, 59679, 590 };
94 static const LITTLENUM_TYPE minus_9[] = {
95 63601, 55221, 43562, 33661, 29067, 28203, 65417, 64352, 22462, 41110,
96 12570, 28635, 23199, 50572, 28471, 27074, 46375, 64028, 13106, 63700,
97 32698, 17493, 32420, 34382, 22750, 20681, 12300 };
98 static const LITTLENUM_TYPE plus_9[] = {
99 63564, 61556, 29377, 54467, 18621, 28141, 36415, 61241, 47119, 30026,
100 19740, 46002, 13541, 61413, 30480, 38664, 32205, 50593, 51112, 48904,
101 48263, 43814, 286, 30826, 52813, 62575, 61390, 24540, 21495, 5 };
103 static const LITTLENUM_TYPE minus_10[] = {
104 50313, 34681, 1464, 25889, 19575, 41125, 17635, 4598, 49708, 13427,
105 17287, 56115, 53783, 38255, 32415, 17778, 31596, 7557, 20951, 18477,
106 40353, 1178, 44405, 11837, 11571, 50963, 15649, 11698, 40675, 2308, };
107 static const LITTLENUM_TYPE plus_10[] = {
108 18520, 53764, 54535, 61910, 61962, 59843, 46270, 58053, 12473, 63785,
109 2449, 43230, 50044, 47595, 10403, 35766, 32607, 1124, 24966, 35044,
110 25524, 23631, 18826, 14518, 58448, 14562, 49618, 5588, 25396, 28 };
112 static const LITTLENUM_TYPE minus_11[] = {
113 6223, 59909, 62437, 59960, 14652, 45336, 48800, 7647, 51962, 37982,
114 60436, 58176, 26767, 8440, 9831, 48556, 20994, 14148, 6757, 17221,
115 60624, 46129, 53210, 44085, 54016, 24259, 11232, 21229, 21313, 81, };
116 static const LITTLENUM_TYPE plus_11[] = {
117 36159, 2055, 33615, 61362, 23581, 62454, 9748, 15275, 39284, 58636,
118 16269, 42793, 47240, 45774, 50861, 48400, 9413, 40281, 4030, 9572,
119 7984, 33038, 59522, 19450, 40593, 24486, 54320, 6661, 55766, 805, };
121 /* Shut up complaints about differing pointer types. They only differ
122 in the const attribute, but there isn't any easy way to do this
124 #define X (LITTLENUM_TYPE *)
126 const FLONUM_TYPE flonum_negative_powers_of_ten[] = {
127 {X zero, X zero, X zero, 0, '+'},
128 {X minus_1, X minus_1 +19, X minus_1 + 19, -20, '+'},
129 {X minus_2, X minus_2 +19, X minus_2 + 19, -20, '+'},
130 {X minus_3, X minus_3 +19, X minus_3 + 19, -20, '+'},
131 {X minus_4, X minus_4 +18, X minus_4 + 18, -20, '+'},
132 {X minus_5, X minus_5 +16, X minus_5 + 16, -20, '+'},
133 {X minus_6, X minus_6 +13, X minus_6 + 13, -20, '+'},
134 {X minus_7, X minus_7 + 6, X minus_7 + 6, -20, '+'},
135 {X minus_8, X minus_8 +13, X minus_8 + 13, -40, '+'},
136 {X minus_9, X minus_9 +26, X minus_9 + 26, -80, '+'},
137 {X minus_10, X minus_10+29, X minus_10 + 29,-136, '+'},
138 {X minus_11, X minus_11+29, X minus_11 + 29,-242, '+'},
141 const FLONUM_TYPE flonum_positive_powers_of_ten[] = {
142 {X zero, X zero, X zero, 0, '+'},
143 {X plus_1, X plus_1 + 0, X plus_1 + 0, 0, '+'},
144 {X plus_2, X plus_2 + 0, X plus_2 + 0, 0, '+'},
145 {X plus_3, X plus_3 + 0, X plus_3 + 0, 0, '+'},
146 {X plus_4, X plus_4 + 1, X plus_4 + 1, 0, '+'},
147 {X plus_5, X plus_5 + 2, X plus_5 + 2, 1, '+'},
148 {X plus_6, X plus_6 + 4, X plus_6 + 4, 2, '+'},
149 {X plus_7, X plus_7 + 9, X plus_7 + 9, 4, '+'},
150 {X plus_8, X plus_8 + 18, X plus_8 + 18, 8, '+'},
151 {X plus_9, X plus_9 + 29, X plus_9 + 29, 24, '+'},
152 {X plus_10, X plus_10 + 29, X plus_10 + 29, 77, '+'},
153 {X plus_11, X plus_11 + 29, X plus_11 + 29, 183, '+'},
161 /* end of flonum_const.c */