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43 lines
1.3 KiB
C
43 lines
1.3 KiB
C
/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <math.h>
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#include "math_private.h"
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#ifndef FUNC
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#define FUNC cos
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#endif
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#ifndef float_type
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#define float_type double
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#endif
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#define __CONCATX(a,b) __CONCAT(a,b)
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float_type
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__CONCATX(__kernel_,FUNC) (x, y)
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float_type x;
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float_type y;
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{
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float_type sin_x, cos_x, sin_y, cos_y;
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__asm__ __volatile__ ("fsincosx %2,%0:%1" : "=f" (cos_x), "=f" (sin_x)
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: "f" (x));
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__asm__ __volatile__ ("fsincosx %2,%0:%1" : "=f" (cos_y), "=f" (sin_y)
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: "f" (y));
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return cos_x * cos_y - sin_x * sin_y;
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}
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