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252b5132 | 1 | /* flonum_const.c - Useful Flonum constants |
f0e652b4 | 2 | Copyright (C) 1987, 90, 91, 92, 93, 94, 95, 96, 2000 |
252b5132 RH |
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, 59 Temple Place - Suite 330, Boston, MA | |
20 | 02111-1307, 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 | |
f0e652b4 | 26 | I really understood this stuff. */ |
252b5132 | 27 | |
252b5132 RH |
28 | const int table_size_of_flonum_powers_of_ten = 13; |
29 | ||
30 | static const LITTLENUM_TYPE zero[] = | |
31 | {1}; | |
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 | { | |
48 | 39322, 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[] = | |
51 | {10}; | |
52 | ||
53 | /* JF: If this equals 655/(2^16) + 23592/(2^32) + ... it approaches .01 */ | |
54 | static const LITTLENUM_TYPE minus_2[] = | |
55 | { | |
56 | 10486, 36700, 62914, 23592, 49807, 10485, 36700, 62914, 23592, 49807, | |
57 | 10485, 36700, 62914, 23592, 49807, 10485, 36700, 62914, 23592, 655}; | |
58 | static const LITTLENUM_TYPE plus_2[] = | |
59 | {100}; | |
60 | ||
61 | /* This approaches .0001 */ | |
62 | static const LITTLENUM_TYPE minus_3[] = | |
63 | { | |
64 | 52534, 20027, 37329, 65116, 64067, 60397, 14784, 18979, 33659, 19503, | |
65 | 2726, 9542, 629, 2202, 40475, 10590, 4299, 47815, 36280, 6}; | |
66 | static const LITTLENUM_TYPE plus_3[] = | |
67 | {10000}; | |
68 | ||
69 | /* JF: this approaches 1e-8 */ | |
70 | static const LITTLENUM_TYPE minus_4[] = | |
71 | { | |
72 | 22517, 49501, 54293, 19424, 60699, 6716, 24348, 22618, 23904, 21327, | |
73 | 3919, 44703, 19149, 28803, 48959, 6259, 50273, 62237, 42}; | |
74 | /* This equals 1525 * 2^16 + 57600 */ | |
75 | static const LITTLENUM_TYPE plus_4[] = | |
76 | {57600, 1525}; | |
77 | ||
78 | /* This approaches 1e-16 */ | |
79 | static const LITTLENUM_TYPE minus_5[] = | |
80 | { | |
81 | 22199, 45957, 17005, 26266, 10526, 16260, 55017, 35680, 40443, 19789, | |
82 | 17356, 30195, 55905, 28426, 63010, 44197, 1844}; | |
83 | static const LITTLENUM_TYPE plus_5[] = | |
84 | {28609, 34546, 35}; | |
85 | ||
86 | static const LITTLENUM_TYPE minus_6[] = | |
87 | { | |
88 | 30926, 26518, 13110, 43018, 54982, 48258, 24658, 15209, 63366, 11929, | |
89 | 20069, 43857, 60487, 51}; | |
90 | static const LITTLENUM_TYPE plus_6[] = | |
91 | {61313, 34220, 16731, 11629, 1262}; | |
92 | ||
93 | static const LITTLENUM_TYPE minus_7[] = | |
94 | { | |
95 | 29819, 14733, 21490, 40602, 31315, 65186, 2695}; | |
96 | static const LITTLENUM_TYPE plus_7[] = | |
97 | { | |
98 | 7937, 49002, 60772, 28216, 38893, 55975, 63988, 59711, 20227, 24}; | |
99 | ||
100 | static const LITTLENUM_TYPE minus_8[] = | |
101 | { | |
102 | 27579, 64807, 12543, 794, 13907, 61297, 12013, 64360, 15961, 20566, | |
103 | 24178, 15922, 59427, 110}; | |
104 | static const LITTLENUM_TYPE plus_8[] = | |
105 | { | |
106 | 15873, 11925, 39177, 991, 14589, 3861, 58415, 9076, 62956, 54223, | |
107 | 56328, 50180, 45274, 48333, 32537, 42547, 9731, 59679, 590}; | |
108 | ||
109 | static const LITTLENUM_TYPE minus_9[] = | |
110 | { | |
111 | 11042, 8464, 58971, 63429, 6022, 63485, 5500, 53464, 47545, 50068, | |
112 | 56988, 22819, 49708, 54493, 9920, 47667, 40409, 35764, 10383, 54466, | |
113 | 32702, 17493, 32420, 34382, 22750, 20681, 12300}; | |
114 | static const LITTLENUM_TYPE plus_9[] = | |
115 | { | |
116 | 20678, 27614, 28272, 53066, 55311, 54677, 29038, 9906, 26288, 44486, | |
117 | 13860, 7445, 54106, 15426, 21518, 25599, 29632, 52309, 61207, 26105, | |
118 | 10482, 21948, 51191, 32988, 60892, 62574, 61390, 24540, 21495, 5}; | |
119 | ||
120 | static const LITTLENUM_TYPE minus_10[] = | |
121 | { | |
122 | 6214, 48771, 23471, 30163, 31763, 38013, 57001, 11770, 18263, 36366, | |
123 | 20742, 45086, 56969, 53231, 37856, 55814, 38057, 15692, 46761, 8713, | |
124 | 6102, 20083, 8269, 11839, 11571, 50963, 15649, 11698, 40675, 2308}; | |
125 | static const LITTLENUM_TYPE plus_10[] = | |
126 | { | |
127 | 63839, 36576, 45712, 44516, 37803, 29482, 4966, 30556, 37961, 23310, | |
128 | 27070, 44972, 29507, 48257, 45209, 7494, 17831, 38728, 41577, 29443, | |
129 | 36016, 7955, 35339, 35479, 36011, 14553, 49618, 5588, 25396, 28}; | |
130 | ||
131 | static const LITTLENUM_TYPE minus_11[] = | |
132 | { | |
133 | 16663, 56882, 61983, 7804, 36555, 32060, 34502, 1000, 14356, 21681, | |
134 | 6605, 34767, 51411, 59048, 53614, 39850, 30079, 6496, 6846, 26841, | |
135 | 40778, 19578, 59899, 44085, 54016, 24259, 11232, 21229, 21313, 81}; | |
136 | static const LITTLENUM_TYPE plus_11[] = | |
137 | { | |
138 | 92, 9054, 62707, 17993, 7821, 56838, 13992, 21321, 29637, 48426, | |
139 | 42982, 38668, 49574, 28820, 18200, 18927, 53979, 16219, 37484, 2516, | |
140 | 44642, 14665, 11587, 41926, 13556, 23956, 54320, 6661, 55766, 805}; | |
141 | ||
142 | static const LITTLENUM_TYPE minus_12[] = | |
143 | { | |
144 | 33202, 45969, 58804, 56734, 16482, 26007, 44984, 49334, 31007, 32944, | |
145 | 44517, 63329, 47131, 15291, 59465, 2264, 23218, 11829, 59771, 38798, | |
146 | 31051, 28748, 23129, 40541, 41562, 35108, 50620, 59014, 51817, 6613}; | |
147 | static const LITTLENUM_TYPE plus_12[] = | |
148 | { | |
149 | 10098, 37922, 58070, 7432, 10470, 63465, 23718, 62190, 47420, 7009, | |
150 | 38443, 4587, 45596, 38472, 52129, 52779, 29012, 13559, 48688, 31678, | |
151 | 41753, 58662, 10668, 36067, 29906, 56906, 21461, 46556, 59571, 9}; | |
152 | ||
153 | static const LITTLENUM_TYPE minus_13[] = | |
154 | { | |
155 | 45309, 27592, 37144, 34637, 34328, 41671, 34620, 24135, 53401, 22112, | |
156 | 21576, 45147, 39310, 44051, 48572, 3676, 46544, 59768, 33350, 2323, | |
157 | 49524, 61568, 3903, 36487, 36356, 30903, 14975, 9035, 29715, 667}; | |
158 | static const LITTLENUM_TYPE plus_13[] = | |
159 | { | |
160 | 18788, 16960, 6318, 45685, 55400, 46230, 35794, 25588, 7253, 55541, | |
161 | 49716, 59760, 63592, 8191, 63765, 58530, 44667, 13294, 10001, 55586, | |
162 | 47887, 18738, 9509, 40896, 42506, 52580, 4171, 325, 12329, 98}; | |
163 | ||
164 | /* Shut up complaints about differing pointer types. They only differ | |
165 | in the const attribute, but there isn't any easy way to do this | |
166 | */ | |
167 | #define X (LITTLENUM_TYPE *) | |
168 | ||
169 | const FLONUM_TYPE flonum_negative_powers_of_ten[] = | |
170 | { | |
171 | {X zero, X zero, X zero, 0, '+'}, | |
172 | {X minus_1, X minus_1 + 19, X minus_1 + 19, -20, '+'}, | |
173 | {X minus_2, X minus_2 + 19, X minus_2 + 19, -20, '+'}, | |
174 | {X minus_3, X minus_3 + 19, X minus_3 + 19, -20, '+'}, | |
175 | {X minus_4, X minus_4 + 18, X minus_4 + 18, -20, '+'}, | |
176 | {X minus_5, X minus_5 + 16, X minus_5 + 16, -20, '+'}, | |
177 | {X minus_6, X minus_6 + 13, X minus_6 + 13, -20, '+'}, | |
178 | {X minus_7, X minus_7 + 6, X minus_7 + 6, -20, '+'}, | |
179 | {X minus_8, X minus_8 + 13, X minus_8 + 13, -40, '+'}, | |
180 | {X minus_9, X minus_9 + 26, X minus_9 + 26, -80, '+'}, | |
181 | {X minus_10, X minus_10 + 29, X minus_10 + 29, -136, '+'}, | |
182 | {X minus_11, X minus_11 + 29, X minus_11 + 29, -242, '+'}, | |
183 | {X minus_12, X minus_12 + 29, X minus_12 + 29, -455, '+'}, | |
184 | {X minus_13, X minus_13 + 29, X minus_13 + 29, -880, '+'}, | |
185 | }; | |
186 | ||
187 | const FLONUM_TYPE flonum_positive_powers_of_ten[] = | |
188 | { | |
189 | {X zero, X zero, X zero, 0, '+'}, | |
190 | {X plus_1, X plus_1 + 0, X plus_1 + 0, 0, '+'}, | |
191 | {X plus_2, X plus_2 + 0, X plus_2 + 0, 0, '+'}, | |
192 | {X plus_3, X plus_3 + 0, X plus_3 + 0, 0, '+'}, | |
193 | {X plus_4, X plus_4 + 1, X plus_4 + 1, 0, '+'}, | |
194 | {X plus_5, X plus_5 + 2, X plus_5 + 2, 1, '+'}, | |
195 | {X plus_6, X plus_6 + 4, X plus_6 + 4, 2, '+'}, | |
196 | {X plus_7, X plus_7 + 9, X plus_7 + 9, 4, '+'}, | |
197 | {X plus_8, X plus_8 + 18, X plus_8 + 18, 8, '+'}, | |
198 | {X plus_9, X plus_9 + 29, X plus_9 + 29, 24, '+'}, | |
199 | {X plus_10, X plus_10 + 29, X plus_10 + 29, 77, '+'}, | |
200 | {X plus_11, X plus_11 + 29, X plus_11 + 29, 183, '+'}, | |
201 | {X plus_12, X plus_12 + 29, X plus_12 + 29, 396, '+'}, | |
202 | {X plus_13, X plus_13 + 29, X plus_13 + 29, 821, '+'}, | |
203 | }; | |
204 | ||
205 | #ifdef VMS | |
3dd5103b NC |
206 | void |
207 | dummy1 () | |
208 | { | |
209 | } | |
252b5132 | 210 | #endif |