diff options
Diffstat (limited to 'sysdeps/m68k/fpu/k_cos.c')
-rw-r--r-- | sysdeps/m68k/fpu/k_cos.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/sysdeps/m68k/fpu/k_cos.c b/sysdeps/m68k/fpu/k_cos.c new file mode 100644 index 0000000000..dd6c215c23 --- /dev/null +++ b/sysdeps/m68k/fpu/k_cos.c @@ -0,0 +1,42 @@ +/* Copyright (C) 1996, 1997 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <math.h> +#include "math_private.h" + +#ifndef FUNC +#define FUNC cos +#endif +#ifndef float_type +#define float_type double +#endif + +#define __CONCATX(a,b) __CONCAT(a,b) + +float_type +__CONCATX(__kernel_,FUNC) (x, y) + float_type x; + float_type y; +{ + float_type sin_x, cos_x, sin_y, cos_y; + __asm__ __volatile__ ("fsincosx %2,%0:%1" : "=f" (cos_x), "=f" (sin_x) + : "f" (x)); + __asm__ __volatile__ ("fsincosx %2,%0:%1" : "=f" (cos_y), "=f" (sin_y) + : "f" (y)); + return cos_x * cos_y - sin_x * sin_y; +} |