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5838780e | 1 | /* Complex sine hyperbole function. m68k fpu version |
04277e02 | 2 | Copyright (C) 1997-2019 Free Software Foundation, Inc. |
5838780e UD |
3 | This file is part of the GNU C Library. |
4 | Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>. | |
5 | ||
6 | The GNU C Library is free software; you can redistribute it and/or | |
3214b89b AJ |
7 | modify it under the terms of the GNU Lesser General Public |
8 | License as published by the Free Software Foundation; either | |
9 | version 2.1 of the License, or (at your option) any later version. | |
5838780e UD |
10 | |
11 | The GNU C Library 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 GNU | |
3214b89b | 14 | Lesser General Public License for more details. |
5838780e | 15 | |
3214b89b | 16 | You should have received a copy of the GNU Lesser General Public |
ab84e3ff | 17 | License along with the GNU C Library. If not, see |
5a82c748 | 18 | <https://www.gnu.org/licenses/>. */ |
5838780e | 19 | |
5838780e UD |
20 | #include <complex.h> |
21 | #include <math.h> | |
5da9d124 | 22 | #include "mathimpl.h" |
5838780e | 23 | |
5838780e | 24 | #define CONCATX(a,b) __CONCAT(a,b) |
c50eee19 | 25 | #define s(name) M_SUF (name) |
5838780e UD |
26 | #define m81(func) __m81_u(s(func)) |
27 | ||
c50eee19 PM |
28 | CFLOAT |
29 | s(__csinh) (CFLOAT x) | |
5838780e | 30 | { |
c50eee19 | 31 | CFLOAT retval; |
e7af313d | 32 | unsigned long ix_cond; |
5838780e | 33 | |
e7af313d | 34 | ix_cond = __m81_test (__imag__ x); |
5838780e | 35 | |
e7af313d | 36 | if ((ix_cond & (__M81_COND_INF|__M81_COND_NAN)) == 0) |
5838780e | 37 | { |
e7af313d | 38 | /* Imaginary part is finite. */ |
c50eee19 | 39 | FLOAT sin_ix, cos_ix; |
5838780e | 40 | |
e7af313d UD |
41 | __asm ("fsincos%.x %2,%1:%0" : "=f" (sin_ix), "=f" (cos_ix) |
42 | : "f" (__imag__ x)); | |
43 | __real__ retval = cos_ix * m81(__ieee754_sinh) (__real__ x); | |
44 | if (ix_cond & __M81_COND_ZERO) | |
45 | __imag__ retval = __imag__ x; | |
5838780e | 46 | else |
e7af313d | 47 | __imag__ retval = sin_ix * m81(__ieee754_cosh) (__real__ x); |
5838780e | 48 | } |
e7af313d | 49 | else |
5838780e | 50 | { |
e7af313d | 51 | unsigned long rx_cond = __m81_test (__real__ x); |
5838780e | 52 | |
e7af313d UD |
53 | __imag__ retval = __imag__ x - __imag__ x; |
54 | if (rx_cond & (__M81_COND_ZERO|__M81_COND_INF|__M81_COND_NAN)) | |
55 | __real__ retval = __real__ x; | |
5838780e | 56 | else |
e7af313d | 57 | __real__ retval = __imag__ retval; |
5838780e | 58 | } |
5838780e UD |
59 | |
60 | return retval; | |
61 | } | |
faec6323 | 62 | declare_mgen_alias (__csinh, csinh) |