[unix-history] / usr / src / usr.bin / gas / flonum-const.c

/* flonum_const.c - Useful Flonum constants
   Copyright (C) 1987 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 1, 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.  */

#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 VMS
dummy1()
{
}
#endif
/* end: flonum_const.c */
Commit	Line	Data
771ea19c WJ	1	/* flonum_const.c - Useful Flonum constants
	2	Copyright (C) 1987 Free Software Foundation, Inc.
	3
	4	This file is part of GAS, the GNU Assembler.
	5
	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 1, or (at your option)
	9	any later version.
	10
	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.
	15
	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. */
	19
	20	#include "flonum.h"
	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. */
	24
	25
	26	const int table_size_of_flonum_powers_of_ten = 11;
	27
	28	static const LITTLENUM_TYPE zero[] = { 1 };
	29
	30	/***********************************************************************\
	31	* *
	32	* Warning: the low order bits may be WRONG here. *
	33	* I took this from a suspect bc(1) script. *
	34	* "minus_X"[] is supposed to be 10^(2^-X) expressed in base 2^16. *
	35	* The radix point is just AFTER the highest element of the [] *
	36	* *
	37	* Because bc rounds DOWN for printing (I think), the lowest *
	38	* significance littlenums should probably have 1 added to them. *
	39	* *
	40	\***********************************************************************/
	41
	42	/* JF: If this equals 6553/(2^16)+39321/(2^32)+... it approaches .1 */
	43	static const LITTLENUM_TYPE minus_1 [] = {
	44	39321, 39321, 39321, 39321, 39321, 39321, 39321, 39321, 39321, 39321,
	45	39321, 39321, 39321, 39321, 39321, 39321, 39321, 39321, 39321, 6553 };
	46	static const LITTLENUM_TYPE plus_1 [] = { 10 };
	47
	48	/* JF: If this equals 655/(2^16) + 23592/(2^32) + ... it approaches .01 */
	49	static const LITTLENUM_TYPE minus_2 [] = {
	50	10485, 36700, 62914, 23592, 49807, 10485, 36700, 62914, 23592, 49807,
	51	10485, 36700, 62914, 23592, 49807, 10485, 36700, 62914, 23592, 655 };
	52	static const LITTLENUM_TYPE plus_2 [] = { 100 };
	53
	54	/* This approaches .0001 */
	55	static const LITTLENUM_TYPE minus_3 [] = {
	56	52533, 20027, 37329, 65116, 64067, 60397, 14784, 18979, 33659, 19503,
	57	2726, 9542, 629, 2202, 40475, 10590, 4299, 47815, 36280, 6 };
	58	static const LITTLENUM_TYPE plus_3 [] = { 10000 };
	59
	60	/* JF: this approaches 1e-8 */
	61	static const LITTLENUM_TYPE minus_4 [] = {
	62	22516, 49501, 54293, 19424, 60699, 6716, 24348, 22618, 23904, 21327,
	63	3919, 44703, 19149, 28803, 48959, 6259, 50273, 62237, 42 };
	64	/* This equals 1525 * 2^16 + 57600 */
65	static const LITTLENUM_TYPE plus_4 [] = { 57600, 1525 };
66
67	/* This approaches 1e-16 */
68	static const LITTLENUM_TYPE minus_5 [] = {
69	22199, 45957, 17005, 26266, 10526, 16260, 55017, 35680, 40443, 19789,
70	17356, 30195, 55905, 28426, 63010, 44197, 1844 };
71	static const LITTLENUM_TYPE plus_5 [] = { 28609, 34546, 35 };
72
73	static const LITTLENUM_TYPE minus_6 [] = {
74	30926, 26518, 13110, 43018, 54982, 48258, 24658, 15209, 63366, 11929,
75	20069, 43857, 60487, 51 };
76	static const LITTLENUM_TYPE plus_6 [] = { 61313, 34220, 16731, 11629, 1262 };
77
78	static const LITTLENUM_TYPE minus_7 [] = {
79	29819, 14733, 21490, 40602, 31315, 65186, 2695 };
80	static const LITTLENUM_TYPE plus_7 [] = {
81	7937, 49002, 60772, 28216, 38893, 55975, 63988, 59711, 20227, 24 };
82
83	static const LITTLENUM_TYPE minus_8 [] = {
84	45849, 19069, 18068, 36324, 37948, 48745, 10873, 64360, 15961, 20566,
85	24178, 15922, 59427, 110 };
86	static const LITTLENUM_TYPE plus_8 [] = {
87	15873, 11925, 39177, 991, 14589, 19735, 25347, 65086, 53853, 938,
88	37209, 47086, 33626, 23253, 32586, 42547, 9731, 59679, 590 };
89
90	static const LITTLENUM_TYPE minus_9 [] = {
91	63601, 55221, 43562, 33661, 29067, 28203, 65417, 64352, 22462, 41110,
92	12570, 28635, 23199, 50572, 28471, 27074, 46375, 64028, 13106, 63700,
93	32698, 17493, 32420, 34382, 22750, 20681, 12300 };
94	static const LITTLENUM_TYPE plus_9 [] = {
95	63564, 61556, 29377, 54467, 18621, 28141, 36415, 61241, 47119, 30026,
96	19740, 46002, 13541, 61413, 30480, 38664, 32205, 50593, 51112, 48904,
97	48263, 43814, 286, 30826, 52813, 62575, 61390, 24540, 21495, 5 };
98
99	static const LITTLENUM_TYPE minus_10 [] = {
100	50313, 34681, 1464, 25889, 19575, 41125, 17635, 4598, 49708, 13427,
101	17287, 56115, 53783, 38255, 32415, 17778, 31596, 7557, 20951, 18477,
102	40353, 1178, 44405, 11837, 11571, 50963, 15649, 11698, 40675, 2308, };
103	static const LITTLENUM_TYPE plus_10[] = {
104	18520, 53764, 54535, 61910, 61962, 59843, 46270, 58053, 12473, 63785,
105	2449, 43230, 50044, 47595, 10403, 35766, 32607, 1124, 24966, 35044,
106	25524, 23631, 18826, 14518, 58448, 14562, 49618, 5588, 25396, 28 };
107
108	static const LITTLENUM_TYPE minus_11 [] = {
109	6223, 59909, 62437, 59960, 14652, 45336, 48800, 7647, 51962, 37982,
110	60436, 58176, 26767, 8440, 9831, 48556, 20994, 14148, 6757, 17221,
111	60624, 46129, 53210, 44085, 54016, 24259, 11232, 21229, 21313, 81, };
112	static const LITTLENUM_TYPE plus_11 [] = {
113	36159, 2055, 33615, 61362, 23581, 62454, 9748, 15275, 39284, 58636,
114	16269, 42793, 47240, 45774, 50861, 48400, 9413, 40281, 4030, 9572,
115	7984, 33038, 59522, 19450, 40593, 24486, 54320, 6661, 55766, 805, };
116
117	/* Shut up complaints about differing pointer types. They only differ
118	in the const attribute, but there isn't any easy way to do this
119	*/
120	#define X (LITTLENUM_TYPE *)
121
122	const FLONUM_TYPE flonum_negative_powers_of_ten [] = {
123	{X zero, X zero, X zero, 0, '+'},
124	{X minus_1, X minus_1 +19, X minus_1 + 19, -20, '+'},
125	{X minus_2, X minus_2 +19, X minus_2 + 19, -20, '+'},
126	{X minus_3, X minus_3 +19, X minus_3 + 19, -20, '+'},
127	{X minus_4, X minus_4 +18, X minus_4 + 18, -20, '+'},
128	{X minus_5, X minus_5 +16, X minus_5 + 16, -20, '+'},
129	{X minus_6, X minus_6 +13, X minus_6 + 13, -20, '+'},
130	{X minus_7, X minus_7 + 6, X minus_7 + 6, -20, '+'},
131	{X minus_8, X minus_8 +13, X minus_8 + 13, -40, '+'},
132	{X minus_9, X minus_9 +26, X minus_9 + 26, -80, '+'},
133	{X minus_10, X minus_10+29, X minus_10 + 29,-136, '+'},
134	{X minus_11, X minus_11+29, X minus_11 + 29,-242, '+'},
135	};
136
137	const FLONUM_TYPE flonum_positive_powers_of_ten [] = {
138	{X zero, X zero, X zero, 0, '+'},
139	{X plus_1, X plus_1 + 0, X plus_1 + 0, 0, '+'},
140	{X plus_2, X plus_2 + 0, X plus_2 + 0, 0, '+'},
141	{X plus_3, X plus_3 + 0, X plus_3 + 0, 0, '+'},
142	{X plus_4, X plus_4 + 1, X plus_4 + 1, 0, '+'},
143	{X plus_5, X plus_5 + 2, X plus_5 + 2, 1, '+'},
144	{X plus_6, X plus_6 + 4, X plus_6 + 4, 2, '+'},
145	{X plus_7, X plus_7 + 9, X plus_7 + 9, 4, '+'},
146	{X plus_8, X plus_8 + 18, X plus_8 + 18, 8, '+'},
147	{X plus_9, X plus_9 + 29, X plus_9 + 29, 24, '+'},
148	{X plus_10, X plus_10 + 29, X plus_10 + 29, 77, '+'},
149	{X plus_11, X plus_11 + 29, X plus_11 + 29, 183, '+'},
150	};
151
152	#ifdef VMS
153	dummy1()
154	{
155	}
156	#endif
157	/* end: flonum_const.c */