diff options
author | Joseph Myers <joseph@codesourcery.com> | 2012-07-01 13:06:41 +0000 |
---|---|---|
committer | Joseph Myers <joseph@codesourcery.com> | 2012-07-01 13:06:41 +0000 |
commit | e64ac02c24b43659048622714afdc92fedf561fa (patch) | |
tree | 37162878b72d302de351788bec4c9360c9d55f1d /ports/sysdeps/m68k/m680x0/fpu/s_ccosh.c | |
parent | a20c2b3c87aebc7d4b090c622d36480263b80042 (diff) | |
download | glibc-e64ac02c24b43659048622714afdc92fedf561fa.tar.gz glibc-e64ac02c24b43659048622714afdc92fedf561fa.tar.xz glibc-e64ac02c24b43659048622714afdc92fedf561fa.zip |
Move all files into ports/ subdirectory in preparation for merge with glibc glibc-2.16-ports-before-merge
Diffstat (limited to 'ports/sysdeps/m68k/m680x0/fpu/s_ccosh.c')
-rw-r--r-- | ports/sysdeps/m68k/m680x0/fpu/s_ccosh.c | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/ports/sysdeps/m68k/m680x0/fpu/s_ccosh.c b/ports/sysdeps/m68k/m680x0/fpu/s_ccosh.c new file mode 100644 index 0000000000..b8360853fd --- /dev/null +++ b/ports/sysdeps/m68k/m680x0/fpu/s_ccosh.c @@ -0,0 +1,77 @@ +/* Complex cosine hyperbole function. m68k fpu version + Copyright (C) 1997, 1999, 2010, 2012 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library. If not, see + <http://www.gnu.org/licenses/>. */ + +#include <complex.h> +#include <math.h> +#include "mathimpl.h" + +#ifndef SUFF +#define SUFF +#endif +#ifndef float_type +#define float_type double +#endif + +#define CONCATX(a,b) __CONCAT(a,b) +#define s(name) CONCATX(name,SUFF) +#define m81(func) __m81_u(s(func)) + +__complex__ float_type +s(__ccosh) (__complex__ float_type x) +{ + __complex__ float_type retval; + unsigned long ix_cond = __m81_test (__imag__ x); + + if ((ix_cond & (__M81_COND_INF|__M81_COND_NAN)) == 0) + { + /* Imaginary part is finite. */ + float_type sin_ix, cos_ix; + + __asm ("fsincos%.x %2,%1:%0" : "=f" (sin_ix), "=f" (cos_ix) + : "f" (__imag__ x)); + __real__ retval = cos_ix * m81(__ieee754_cosh) (__real__ x); + if (ix_cond & __M81_COND_ZERO) + __imag__ retval = (signbit (__real__ x) + ? -__imag__ x : __imag__ x); + else + __imag__ retval = sin_ix * m81(__ieee754_sinh) (__real__ x); + } + else + { + unsigned long rx_cond = __m81_test (__real__ x); + + if (rx_cond & __M81_COND_ZERO) + { + __real__ retval = __imag__ x - __imag__ x; + __imag__ retval = __real__ x; + } + else + { + if (rx_cond & __M81_COND_INF) + __real__ retval = s(fabs) (__real__ x); + else + __real__ retval = s(__nan) (""); + __imag__ retval = __imag__ x - __imag__ x; + } + } + + return retval; +} +#define weak_aliasx(a,b) weak_alias(a,b) +weak_aliasx (s(__ccosh), s(ccosh)) |