1 | /* |
2 | * IBM Accurate Mathematical Library |
3 | * Written by International Business Machines Corp. |
4 | * Copyright (C) 2001-2021 Free Software Foundation, Inc. |
5 | * |
6 | * This program is free software; you can redistribute it and/or modify |
7 | * it under the terms of the GNU Lesser General Public License as published by |
8 | * the Free Software Foundation; either version 2.1 of the License, or |
9 | * (at your option) any later version. |
10 | * |
11 | * This program 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 Lesser General Public License for more details. |
15 | * |
16 | * You should have received a copy of the GNU Lesser General Public License |
17 | * along with this program; if not, see <https://www.gnu.org/licenses/>. |
18 | */ |
19 | |
20 | /******************************************************************/ |
21 | /* */ |
22 | /* MODULE_NAME:mpatan.h */ |
23 | /* */ |
24 | /* common data and variables prototype and definition */ |
25 | /******************************************************************/ |
26 | |
27 | #ifndef MPATAN_H |
28 | #define MPATAN_H |
29 | |
30 | extern const number __atan_xm[8] attribute_hidden; |
31 | extern const number __atan_twonm1[33] attribute_hidden; |
32 | extern const number __atan_twom[8] attribute_hidden; |
33 | extern const int __atan_np[33] attribute_hidden; |
34 | |
35 | |
36 | #ifndef AVOID_MPATAN_H |
37 | #ifdef BIG_ENDI |
38 | const number |
39 | __atan_xm[8] = { /* x[m] */ |
40 | /**/ {{0x00000000, 0x00000000} }, /* 0.0 */ |
41 | /**/ {{0x3f8930be, 0x00000000} }, /* 0.0123 */ |
42 | /**/ {{0x3f991687, 0x00000000} }, /* 0.0245 */ |
43 | /**/ {{0x3fa923a2, 0x00000000} }, /* 0.0491 */ |
44 | /**/ {{0x3fb930be, 0x00000000} }, /* 0.0984 */ |
45 | /**/ {{0x3fc95810, 0x00000000} }, /* 0.198 */ |
46 | /**/ {{0x3fda7ef9, 0x00000000} }, /* 0.414 */ |
47 | /**/ {{0x3ff00000, 0x00000000} }, /* 1.0 */ |
48 | }; |
49 | const number |
50 | __atan_twonm1[33] = { /* 2n-1 */ |
51 | /**/ {{0x00000000, 0x00000000} }, /* 0 */ |
52 | /**/ {{0x00000000, 0x00000000} }, /* 0 */ |
53 | /**/ {{0x00000000, 0x00000000} }, /* 0 */ |
54 | /**/ {{0x00000000, 0x00000000} }, /* 0 */ |
55 | /**/ {{0x40260000, 0x00000000} }, /* 11 */ |
56 | /**/ {{0x402e0000, 0x00000000} }, /* 15 */ |
57 | /**/ {{0x40330000, 0x00000000} }, /* 19 */ |
58 | /**/ {{0x40350000, 0x00000000} }, /* 21 */ |
59 | /**/ {{0x40390000, 0x00000000} }, /* 25 */ |
60 | /**/ {{0x403d0000, 0x00000000} }, /* 29 */ |
61 | /**/ {{0x40408000, 0x00000000} }, /* 33 */ |
62 | /**/ {{0x40428000, 0x00000000} }, /* 37 */ |
63 | /**/ {{0x40448000, 0x00000000} }, /* 41 */ |
64 | /**/ {{0x40468000, 0x00000000} }, /* 45 */ |
65 | /**/ {{0x40488000, 0x00000000} }, /* 49 */ |
66 | /**/ {{0x404a8000, 0x00000000} }, /* 53 */ |
67 | /**/ {{0x404b8000, 0x00000000} }, /* 55 */ |
68 | /**/ {{0x404d8000, 0x00000000} }, /* 59 */ |
69 | /**/ {{0x404f8000, 0x00000000} }, /* 63 */ |
70 | /**/ {{0x4050c000, 0x00000000} }, /* 67 */ |
71 | /**/ {{0x4051c000, 0x00000000} }, /* 71 */ |
72 | /**/ {{0x4052c000, 0x00000000} }, /* 75 */ |
73 | /**/ {{0x4053c000, 0x00000000} }, /* 79 */ |
74 | /**/ {{0x4054c000, 0x00000000} }, /* 83 */ |
75 | /**/ {{0x40554000, 0x00000000} }, /* 85 */ |
76 | /**/ {{0x40564000, 0x00000000} }, /* 89 */ |
77 | /**/ {{0x40574000, 0x00000000} }, /* 93 */ |
78 | /**/ {{0x40584000, 0x00000000} }, /* 97 */ |
79 | /**/ {{0x40594000, 0x00000000} }, /* 101 */ |
80 | /**/ {{0x405a4000, 0x00000000} }, /* 105 */ |
81 | /**/ {{0x405b4000, 0x00000000} }, /* 109 */ |
82 | /**/ {{0x405c4000, 0x00000000} }, /* 113 */ |
83 | /**/ {{0x405d4000, 0x00000000} }, /* 117 */ |
84 | }; |
85 | |
86 | #else |
87 | #ifdef LITTLE_ENDI |
88 | |
89 | const number |
90 | __atan_xm[8] = { /* x[m] */ |
91 | /**/ {{0x00000000, 0x00000000} }, /* 0.0 */ |
92 | /**/ {{0x00000000, 0x3f8930be} }, /* 0.0123 */ |
93 | /**/ {{0x00000000, 0x3f991687} }, /* 0.0245 */ |
94 | /**/ {{0x00000000, 0x3fa923a2} }, /* 0.0491 */ |
95 | /**/ {{0x00000000, 0x3fb930be} }, /* 0.0984 */ |
96 | /**/ {{0x00000000, 0x3fc95810} }, /* 0.198 */ |
97 | /**/ {{0x00000000, 0x3fda7ef9} }, /* 0.414 */ |
98 | /**/ {{0x00000000, 0x3ff00000} }, /* 1.0 */ |
99 | }; |
100 | const number |
101 | __atan_twonm1[33] = { /* 2n-1 */ |
102 | /**/ {{0x00000000, 0x00000000} }, /* 0 */ |
103 | /**/ {{0x00000000, 0x00000000} }, /* 0 */ |
104 | /**/ {{0x00000000, 0x00000000} }, /* 0 */ |
105 | /**/ {{0x00000000, 0x00000000} }, /* 0 */ |
106 | /**/ {{0x00000000, 0x40260000} }, /* 11 */ |
107 | /**/ {{0x00000000, 0x402e0000} }, /* 15 */ |
108 | /**/ {{0x00000000, 0x40330000} }, /* 19 */ |
109 | /**/ {{0x00000000, 0x40350000} }, /* 21 */ |
110 | /**/ {{0x00000000, 0x40390000} }, /* 25 */ |
111 | /**/ {{0x00000000, 0x403d0000} }, /* 29 */ |
112 | /**/ {{0x00000000, 0x40408000} }, /* 33 */ |
113 | /**/ {{0x00000000, 0x40428000} }, /* 37 */ |
114 | /**/ {{0x00000000, 0x40448000} }, /* 41 */ |
115 | /**/ {{0x00000000, 0x40468000} }, /* 45 */ |
116 | /**/ {{0x00000000, 0x40488000} }, /* 49 */ |
117 | /**/ {{0x00000000, 0x404a8000} }, /* 53 */ |
118 | /**/ {{0x00000000, 0x404b8000} }, /* 55 */ |
119 | /**/ {{0x00000000, 0x404d8000} }, /* 59 */ |
120 | /**/ {{0x00000000, 0x404f8000} }, /* 63 */ |
121 | /**/ {{0x00000000, 0x4050c000} }, /* 67 */ |
122 | /**/ {{0x00000000, 0x4051c000} }, /* 71 */ |
123 | /**/ {{0x00000000, 0x4052c000} }, /* 75 */ |
124 | /**/ {{0x00000000, 0x4053c000} }, /* 79 */ |
125 | /**/ {{0x00000000, 0x4054c000} }, /* 83 */ |
126 | /**/ {{0x00000000, 0x40554000} }, /* 85 */ |
127 | /**/ {{0x00000000, 0x40564000} }, /* 89 */ |
128 | /**/ {{0x00000000, 0x40574000} }, /* 93 */ |
129 | /**/ {{0x00000000, 0x40584000} }, /* 97 */ |
130 | /**/ {{0x00000000, 0x40594000} }, /* 101 */ |
131 | /**/ {{0x00000000, 0x405a4000} }, /* 105 */ |
132 | /**/ {{0x00000000, 0x405b4000} }, /* 109 */ |
133 | /**/ {{0x00000000, 0x405c4000} }, /* 113 */ |
134 | /**/ {{0x00000000, 0x405d4000} }, /* 117 */ |
135 | }; |
136 | |
137 | #endif |
138 | #endif |
139 | |
140 | const int |
141 | __atan_np[33] = { 0, 0, 0, 0, 6, 8,10,11,13,15,17,19,21,23,25,27,28, |
142 | 30,32,34,36,38,40,42,43,45,47,49,51,53,55,57,59}; |
143 | |
144 | #endif |
145 | #endif |
146 | |