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50 lines
1.4 KiB
C
50 lines
1.4 KiB
C
/* Math functions for i387.
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Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by John C. Bowman <bowman@ipp-garching.mpg.de>, 1995.
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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., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include <math.h>
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double fmod (double __x, double __y);
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double fmod (double __x, double __y)
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{
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register double __val;
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#ifdef __GNUC__
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__asm __volatile__
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("1: fprem\n\t"
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"fstsw %%ax\n\t"
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"sahf\n\t"
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"jp 1b"
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: "=t" (__val) : "0" (__x), "u" (__y) : "ax", "cc");
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#else
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__asm
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{
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fld __y
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fld __x
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L1: fprem1
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fstsw ax
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sahf
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jp L1
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fstp __val
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}
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#endif /*__GNUC__*/
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return __val;
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}
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