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 /* JF: I added the last entry to this table, and I'm not
22 sure if its right or not. Could go either way. I wish
23 I really understood this stuff. */
26 const int table_size_of_flonum_powers_of_ten = 11;
28 static const LITTLENUM_TYPE zero[] =
31 /***********************************************************************\
33 * Warning: the low order bits may be WRONG here. *
34 * I took this from a suspect bc(1) script. *
35 * "minus_X"[] is supposed to be 10^(2^-X) expressed in base 2^16. *
36 * The radix point is just AFTER the highest element of the [] *
38 * Because bc rounds DOWN for printing (I think), the lowest *
39 * significance littlenums should probably have 1 added to them. *
41 \***********************************************************************/
43 /* JF: If this equals 6553/(2^16)+39321/(2^32)+... it approaches .1 */
44 static const LITTLENUM_TYPE minus_1[] =
46 39321, 39321, 39321, 39321, 39321, 39321, 39321, 39321, 39321, 39321,
47 39321, 39321, 39321, 39321, 39321, 39321, 39321, 39321, 39321, 6553};
48 static const LITTLENUM_TYPE plus_1[] =
51 /* JF: If this equals 655/(2^16) + 23592/(2^32) + ... it approaches .01 */
52 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[] =
59 /* This approaches .0001 */
60 static const LITTLENUM_TYPE minus_3[] =
62 52533, 20027, 37329, 65116, 64067, 60397, 14784, 18979, 33659, 19503,
63 2726, 9542, 629, 2202, 40475, 10590, 4299, 47815, 36280, 6};
64 static const LITTLENUM_TYPE plus_3[] =
67 /* JF: this approaches 1e-8 */
68 static const LITTLENUM_TYPE minus_4[] =
70 22516, 49501, 54293, 19424, 60699, 6716, 24348, 22618, 23904, 21327,
71 3919, 44703, 19149, 28803, 48959, 6259, 50273, 62237, 42};
72 /* This equals 1525 * 2^16 + 57600 */
73 static const LITTLENUM_TYPE plus_4[] =
76 /* This approaches 1e-16 */
77 static const LITTLENUM_TYPE minus_5[] =
79 22199, 45957, 17005, 26266, 10526, 16260, 55017, 35680, 40443, 19789,
80 17356, 30195, 55905, 28426, 63010, 44197, 1844};
81 static const LITTLENUM_TYPE plus_5[] =
84 static const LITTLENUM_TYPE minus_6[] =
86 30926, 26518, 13110, 43018, 54982, 48258, 24658, 15209, 63366, 11929,
87 20069, 43857, 60487, 51};
88 static const LITTLENUM_TYPE plus_6[] =
89 {61313, 34220, 16731, 11629, 1262};
91 static const LITTLENUM_TYPE minus_7[] =
93 29819, 14733, 21490, 40602, 31315, 65186, 2695};
94 static const LITTLENUM_TYPE plus_7[] =
96 7937, 49002, 60772, 28216, 38893, 55975, 63988, 59711, 20227, 24};
98 static const LITTLENUM_TYPE minus_8[] =
100 45849, 19069, 18068, 36324, 37948, 48745, 10873, 64360, 15961, 20566,
101 24178, 15922, 59427, 110};
102 static const LITTLENUM_TYPE plus_8[] =
104 15873, 11925, 39177, 991, 14589, 19735, 25347, 65086, 53853, 938,
105 37209, 47086, 33626, 23253, 32586, 42547, 9731, 59679, 590};
107 static const LITTLENUM_TYPE minus_9[] =
109 63601, 55221, 43562, 33661, 29067, 28203, 65417, 64352, 22462, 41110,
110 12570, 28635, 23199, 50572, 28471, 27074, 46375, 64028, 13106, 63700,
111 32698, 17493, 32420, 34382, 22750, 20681, 12300};
112 static const LITTLENUM_TYPE plus_9[] =
114 63564, 61556, 29377, 54467, 18621, 28141, 36415, 61241, 47119, 30026,
115 19740, 46002, 13541, 61413, 30480, 38664, 32205, 50593, 51112, 48904,
116 48263, 43814, 286, 30826, 52813, 62575, 61390, 24540, 21495, 5};
118 static const LITTLENUM_TYPE minus_10[] =
120 50313, 34681, 1464, 25889, 19575, 41125, 17635, 4598, 49708, 13427,
121 17287, 56115, 53783, 38255, 32415, 17778, 31596, 7557, 20951, 18477,
122 40353, 1178, 44405, 11837, 11571, 50963, 15649, 11698, 40675, 2308,};
123 static const LITTLENUM_TYPE plus_10[] =
125 18520, 53764, 54535, 61910, 61962, 59843, 46270, 58053, 12473, 63785,
126 2449, 43230, 50044, 47595, 10403, 35766, 32607, 1124, 24966, 35044,
127 25524, 23631, 18826, 14518, 58448, 14562, 49618, 5588, 25396, 28};
129 static const LITTLENUM_TYPE minus_11[] =
131 6223, 59909, 62437, 59960, 14652, 45336, 48800, 7647, 51962, 37982,
132 60436, 58176, 26767, 8440, 9831, 48556, 20994, 14148, 6757, 17221,
133 60624, 46129, 53210, 44085, 54016, 24259, 11232, 21229, 21313, 81,};
134 static const LITTLENUM_TYPE plus_11[] =
136 36159, 2055, 33615, 61362, 23581, 62454, 9748, 15275, 39284, 58636,
137 16269, 42793, 47240, 45774, 50861, 48400, 9413, 40281, 4030, 9572,
138 7984, 33038, 59522, 19450, 40593, 24486, 54320, 6661, 55766, 805,};
140 /* Shut up complaints about differing pointer types. They only differ
141 in the const attribute, but there isn't any easy way to do this
143 #define X (LITTLENUM_TYPE *)
145 const FLONUM_TYPE flonum_negative_powers_of_ten[] =
147 {X zero, X zero, X zero, 0, '+'},
148 {X minus_1, X minus_1 + 19, X minus_1 + 19, -20, '+'},
149 {X minus_2, X minus_2 + 19, X minus_2 + 19, -20, '+'},
150 {X minus_3, X minus_3 + 19, X minus_3 + 19, -20, '+'},
151 {X minus_4, X minus_4 + 18, X minus_4 + 18, -20, '+'},
152 {X minus_5, X minus_5 + 16, X minus_5 + 16, -20, '+'},
153 {X minus_6, X minus_6 + 13, X minus_6 + 13, -20, '+'},
154 {X minus_7, X minus_7 + 6, X minus_7 + 6, -20, '+'},
155 {X minus_8, X minus_8 + 13, X minus_8 + 13, -40, '+'},
156 {X minus_9, X minus_9 + 26, X minus_9 + 26, -80, '+'},
157 {X minus_10, X minus_10 + 29, X minus_10 + 29, -136, '+'},
158 {X minus_11, X minus_11 + 29, X minus_11 + 29, -242, '+'},
161 const FLONUM_TYPE flonum_positive_powers_of_ten[] =
163 {X zero, X zero, X zero, 0, '+'},
164 {X plus_1, X plus_1 + 0, X plus_1 + 0, 0, '+'},
165 {X plus_2, X plus_2 + 0, X plus_2 + 0, 0, '+'},
166 {X plus_3, X plus_3 + 0, X plus_3 + 0, 0, '+'},
167 {X plus_4, X plus_4 + 1, X plus_4 + 1, 0, '+'},
168 {X plus_5, X plus_5 + 2, X plus_5 + 2, 1, '+'},
169 {X plus_6, X plus_6 + 4, X plus_6 + 4, 2, '+'},
170 {X plus_7, X plus_7 + 9, X plus_7 + 9, 4, '+'},
171 {X plus_8, X plus_8 + 18, X plus_8 + 18, 8, '+'},
172 {X plus_9, X plus_9 + 29, X plus_9 + 29, 24, '+'},
173 {X plus_10, X plus_10 + 29, X plus_10 + 29, 77, '+'},
174 {X plus_11, X plus_11 + 29, X plus_11 + 29, 183, '+'},
183 /* end of flonum_const.c */