1 
2 /*******************************************************************************
3 MIT License
4 -----------
5 
6 Copyright (c) 2002-2019 Advanced Micro Devices, Inc.
7 
8 Permission is hereby granted, free of charge, to any person obtaining a copy
9 of this Software and associated documentaon files (the "Software"), to deal
10 in the Software without restriction, including without limitation the rights
11 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
12 copies of the Software, and to permit persons to whom the Software is
13 furnished to do so, subject to the following conditions:
14 
15 The above copyright notice and this permission notice shall be included in
16 all copies or substantial portions of the Software.
17 
18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
21 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
23 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24 THE SOFTWARE.
25 *******************************************************************************/
26 
27 #include <fpieee.h>
28 #include <excpt.h>
29 #include <float.h>
30 #include <math.h>
31 #include <errno.h>
32 
33 #include "libm_new.h"
34 
35 double _sincos_special(double x, char *name, unsigned int operation)
36 {
37     UT64 xu;
38 	unsigned int is_snan;
39 
40 	xu.f64 = x;
41 
42     if((xu.u64 & INF_POS_64) == INF_POS_64)
43     {
44         // x is Inf or NaN
45         if((xu.u64 & MANTISSA_MASK_64) == 0x0)
46         {
47             // x is Inf
48 			xu.u64 = IND_64;
49 			_handle_error(name, operation, xu.u64, _DOMAIN, AMD_F_INVALID, EDOM, x, 0, 1);
50 		}
51 		else
52 		{
53 			// x is NaN
54             is_snan = (((xu.u64 & QNAN_MASK_64) == QNAN_MASK_64) ? 0 : 1);
55 			if(is_snan)
56 			{
57 				xu.u64 |= QNAN_MASK_64;
58 			}
59 			_handle_error(name, operation, xu.u64, _DOMAIN, 0, EDOM, x, 0, 1);
60 		}
61 	}
62 
63 	return xu.f64;
64 }
65 
66 float _sincosf_special(float x, char *name, unsigned int operation)
67 {
68     UT64 xu;
69 	unsigned int is_snan;
70 
71 	xu.u64    = 0;
72 	xu.f32[0] = x;
73 
74     if((xu.u32[0] & INF_POS_32) == INF_POS_32)
75     {
76         // x is Inf or NaN
77         if((xu.u32[0] & MANTISSA_MASK_32) == 0x0)
78         {
79             // x is Inf
80 			xu.u32[0] = IND_32;
81 			_handle_errorf(name, operation, xu.u64, _DOMAIN, AMD_F_INVALID, EDOM, x, 0, 1);
82 		}
83 		else
84 		{
85 			// x is NaN
86             is_snan = (((xu.u32[0] & QNAN_MASK_32) == QNAN_MASK_32) ? 0 : 1);
87 			if(is_snan)
88 			{
89 				xu.u32[0] |= QNAN_SET_32;
90 				_handle_errorf(name, operation, xu.u64, _DOMAIN, AMD_F_INVALID, EDOM, x, 0, 1);
91 			}
92 			else
93 			{
94 				_handle_errorf(name, operation, xu.u64, _DOMAIN, 0, EDOM, x, 0, 1);
95 			}
96 		}
97 	}
98 
99 	return xu.f32[0];
100 }
101 
102 float _sinf_special(float x)
103 {
104 	return _sincosf_special(x, "sinf", _FpCodeSin);
105 }
106 
107 double _sin_special(double x)
108 {
109 	return _sincos_special(x, "sin", _FpCodeSin);
110 }
111 
112 float _cosf_special(float x)
113 {
114 	return _sincosf_special(x, "cosf", _FpCodeCos);
115 }
116 
117 double _cos_special(double x)
118 {
119 	return _sincos_special(x, "cos", _FpCodeCos);
120 }
121 
122 double _tan_special(double x)
123 {
124         return  _sincos_special(x, "tan",_FpCodeTan);
125 }
126 
127 float _tanf_special(float x)
128 {
129         return  _sincosf_special(x, "tanf",_FpCodeTan);
130 }
131