1 /* Complex cosine hyperbole function. m68k fpu version
2 Copyright (C) 1997-2022 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library. If not, see
17 <https://www.gnu.org/licenses/>. */
23 #define s(name) M_SUF (name)
24 #define m81(func) __m81_u(s(func))
30 unsigned long ix_cond
= __m81_test (__imag__ x
);
32 if ((ix_cond
& (__M81_COND_INF
|__M81_COND_NAN
)) == 0)
34 /* Imaginary part is finite. */
37 __asm ("fsincos%.x %2,%1:%0" : "=f" (sin_ix
), "=f" (cos_ix
)
39 __real__ retval
= cos_ix
* m81(__ieee754_cosh
) (__real__ x
);
40 if (ix_cond
& __M81_COND_ZERO
)
41 __imag__ retval
= (signbit (__real__ x
)
42 ? -__imag__ x
: __imag__ x
);
44 __imag__ retval
= sin_ix
* m81(__ieee754_sinh
) (__real__ x
);
48 unsigned long rx_cond
= __m81_test (__real__ x
);
50 if (rx_cond
& __M81_COND_ZERO
)
52 __real__ retval
= __imag__ x
- __imag__ x
;
53 __imag__ retval
= __real__ x
;
57 if (rx_cond
& __M81_COND_INF
)
58 __real__ retval
= s(fabs
) (__real__ x
);
60 __real__ retval
= s(__nan
) ("");
61 __imag__ retval
= __imag__ x
- __imag__ x
;
67 declare_mgen_alias (__ccosh
, ccosh
)