summaryrefslogtreecommitdiff
path: root/gnu/usr.bin/gas/flo-const.c
blob: ac5c4b02d4f5e6a4fa06f38597f9415ac7c97bf0 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
/* flonum_const.c - Useful Flonum constants
   Copyright (C) 1987, 1990, 1991, 1992 Free Software Foundation, Inc.
   
   This file is part of GAS, the GNU Assembler.
   
   GAS is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2, or (at your option)
   any later version.
   
   GAS is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
   
   You should have received a copy of the GNU General Public License
   along with GAS; see the file COPYING.  If not, write to
   the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */

#ifndef lint
static char rcsid[] = "$Id: flo-const.c,v 1.1 1995/10/18 08:38:57 deraadt Exp $";
#endif

#include "flonum.h"
/* JF:  I added the last entry to this table, and I'm not
   sure if its right or not.  Could go either way.  I wish
   I really understood this stuff. */


const int table_size_of_flonum_powers_of_ten = 11;

static const LITTLENUM_TYPE zero[] = {     1 };

/***********************************************************************\
 *									*
 *	Warning: the low order bits may be WRONG here.			*
 *	I took this from a suspect bc(1) script.			*
 *	"minus_X"[] is supposed to be 10^(2^-X) expressed in base 2^16.	*
 *	The radix point is just AFTER the highest element of the []	*
 *									*
 *	Because bc rounds DOWN for printing (I think), the lowest	*
 *	significance littlenums should probably have 1 added to them.	*
 *									*
 \***********************************************************************/

/* JF:  If this equals 6553/(2^16)+39321/(2^32)+...  it approaches .1 */
static const LITTLENUM_TYPE minus_1[] = {
	39321, 39321, 39321, 39321, 39321, 39321, 39321, 39321, 39321, 39321,
	39321, 39321, 39321, 39321, 39321, 39321, 39321, 39321, 39321,  6553 };
static const LITTLENUM_TYPE plus_1[] = {    10                             };

/* JF:  If this equals 655/(2^16) + 23592/(2^32) + ... it approaches .01 */
static const LITTLENUM_TYPE minus_2[] = {
	10485, 36700, 62914, 23592, 49807, 10485, 36700, 62914, 23592, 49807,
	10485, 36700, 62914, 23592, 49807, 10485, 36700, 62914, 23592,   655 };
static const LITTLENUM_TYPE plus_2[] = {   100                             };

/* This approaches .0001 */
static const LITTLENUM_TYPE minus_3[] = {
	52533, 20027, 37329, 65116, 64067, 60397, 14784, 18979, 33659, 19503,
	2726,  9542,   629,  2202, 40475, 10590,  4299, 47815, 36280,     6 };
static const LITTLENUM_TYPE plus_3[] = { 10000                             };

/* JF: this approaches 1e-8 */
static const LITTLENUM_TYPE minus_4[] = {
	22516, 49501, 54293, 19424, 60699,  6716, 24348, 22618, 23904, 21327,
	3919, 44703, 19149, 28803, 48959,  6259, 50273, 62237,    42        };
/* This equals 1525 * 2^16 + 57600 */
static const LITTLENUM_TYPE plus_4[] = { 57600,  1525                      };

/* This approaches 1e-16 */
static const LITTLENUM_TYPE minus_5[] = {
	22199, 45957, 17005, 26266, 10526, 16260, 55017, 35680, 40443, 19789,
	17356, 30195, 55905, 28426, 63010, 44197,  1844                      };
static const LITTLENUM_TYPE plus_5[] = { 28609, 34546,    35               };

static const LITTLENUM_TYPE minus_6[] = {
	30926, 26518, 13110, 43018, 54982, 48258, 24658, 15209, 63366, 11929,
	20069, 43857, 60487,    51                                           };
static const LITTLENUM_TYPE plus_6[] = { 61313, 34220, 16731, 11629,  1262 };

static const LITTLENUM_TYPE minus_7[] = {
	29819, 14733, 21490, 40602, 31315, 65186,  2695                      };
static const LITTLENUM_TYPE plus_7[] = {
	7937, 49002, 60772, 28216, 38893, 55975, 63988, 59711, 20227,    24 };

static const LITTLENUM_TYPE minus_8[] = {
	45849, 19069, 18068, 36324, 37948, 48745, 10873, 64360, 15961, 20566,
	24178, 15922, 59427,   110                                           };
static const LITTLENUM_TYPE plus_8[] = {
	15873, 11925, 39177,   991, 14589, 19735, 25347, 65086, 53853,  938,
	37209, 47086, 33626, 23253, 32586, 42547,  9731, 59679,  590         };

static const LITTLENUM_TYPE minus_9[] = {
	63601, 55221, 43562, 33661, 29067, 28203, 65417, 64352, 22462, 41110,
	12570, 28635, 23199, 50572, 28471, 27074, 46375, 64028, 13106, 63700,
	32698, 17493, 32420, 34382, 22750, 20681, 12300                      };
static const LITTLENUM_TYPE plus_9[] = {
	63564, 61556, 29377, 54467, 18621, 28141, 36415, 61241, 47119, 30026,
	19740, 46002, 13541, 61413, 30480, 38664, 32205, 50593, 51112, 48904,
	48263, 43814,   286, 30826, 52813, 62575, 61390, 24540, 21495,     5 };

static const LITTLENUM_TYPE minus_10[] = {
	50313, 34681,  1464, 25889, 19575, 41125, 17635,  4598, 49708, 13427,
	17287, 56115, 53783, 38255, 32415, 17778, 31596,  7557, 20951, 18477,
	40353,  1178, 44405, 11837, 11571, 50963, 15649, 11698, 40675,  2308,  };
static const LITTLENUM_TYPE plus_10[] = {
	18520, 53764, 54535, 61910, 61962, 59843, 46270, 58053, 12473, 63785,
	2449, 43230, 50044, 47595, 10403, 35766, 32607,  1124, 24966, 35044,
	25524, 23631, 18826, 14518, 58448, 14562, 49618,  5588, 25396,    28 };

static const LITTLENUM_TYPE minus_11[] = {
	6223, 59909, 62437, 59960, 14652, 45336, 48800,  7647, 51962, 37982,
	60436, 58176, 26767,  8440,  9831, 48556, 20994, 14148,  6757, 17221,
	60624, 46129, 53210, 44085, 54016, 24259, 11232, 21229, 21313,    81,  };
static const LITTLENUM_TYPE plus_11[] = {
	36159,  2055, 33615, 61362, 23581, 62454,  9748, 15275, 39284, 58636,
	16269, 42793, 47240, 45774, 50861, 48400,  9413, 40281,  4030,  9572,
	7984, 33038, 59522, 19450, 40593, 24486, 54320,  6661, 55766,   805,  };

/* Shut up complaints about differing pointer types.  They only differ
   in the const attribute, but there isn't any easy way to do this
   */
#define X (LITTLENUM_TYPE *)

const FLONUM_TYPE flonum_negative_powers_of_ten[] = {
	{X zero,	X zero,		X zero,		  0, '+'},
	{X minus_1,	X minus_1 +19,	X minus_1  + 19, -20, '+'},
	{X minus_2,	X minus_2 +19,	X minus_2  + 19, -20, '+'},
	{X minus_3,	X minus_3 +19,	X minus_3  + 19, -20, '+'},
	{X minus_4,	X minus_4 +18,	X minus_4  + 18, -20, '+'},
	{X minus_5,	X minus_5 +16,	X minus_5  + 16, -20, '+'},
	{X minus_6,	X minus_6 +13,	X minus_6  + 13, -20, '+'},
	{X minus_7,	X minus_7 + 6,	X minus_7  +  6, -20, '+'},
	{X minus_8,	X minus_8 +13,	X minus_8  + 13, -40, '+'},
	{X minus_9,	X minus_9 +26,	X minus_9  + 26, -80, '+'},
	{X minus_10,	X minus_10+29,	X minus_10 + 29,-136, '+'},
	{X minus_11,	X minus_11+29,	X minus_11 + 29,-242, '+'},
};

const FLONUM_TYPE flonum_positive_powers_of_ten[] = {
	{X zero,	X zero,		X zero,		  0, '+'},
	{X plus_1,	X plus_1  +  0,	X plus_1  +  0,	  0, '+'},
	{X plus_2,	X plus_2  +  0,	X plus_2  +  0,	  0, '+'},
	{X plus_3,	X plus_3  +  0,	X plus_3  +  0,	  0, '+'},
	{X plus_4,	X plus_4  +  1,	X plus_4  +  1,	  0, '+'},
	{X plus_5,	X plus_5  +  2,	X plus_5  +  2,	  1, '+'},
	{X plus_6,	X plus_6  +  4,	X plus_6  +  4,	  2, '+'},
	{X plus_7,	X plus_7  +  9,	X plus_7  +  9,	  4, '+'},
	{X plus_8,	X plus_8  + 18,	X plus_8  + 18,	  8, '+'},
	{X plus_9,	X plus_9  + 29,	X plus_9  + 29,	 24, '+'},
	{X plus_10,	X plus_10 + 29,	X plus_10 + 29,	 77, '+'},
	{X plus_11,	X plus_11 + 29,	X plus_11 + 29,	183, '+'},
};

#ifdef HO_VMS
dummy1()
{
}
#endif
/* end of flonum_const.c */