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5838780e 1/* Complex sine hyperbole function. m68k fpu version
04277e02 2 Copyright (C) 1997-2019 Free Software Foundation, Inc.
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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
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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.
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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
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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)
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26#define m81(func) __m81_u(s(func))
27
c50eee19
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28CFLOAT
29s(__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
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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
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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 }
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59
60 return retval;
61}
faec6323 62declare_mgen_alias (__csinh, csinh)