1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/ossrv/genericopenlibs/openenvcore/libc/include/fpmath.h	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,66 @@
     1.4 +/*-
     1.5 + * Copyright (c) 2003 Mike Barcroft <mike@FreeBSD.org>
     1.6 + * Copyright (c) 2002 David Schultz <das@FreeBSD.ORG>
     1.7 + * All rights reserved.
     1.8 + *
     1.9 + * Redistribution and use in source and binary forms, with or without
    1.10 + * modification, are permitted provided that the following conditions
    1.11 + * are met:
    1.12 + * 1. Redistributions of source code must retain the above copyright
    1.13 + *    notice, this list of conditions and the following disclaimer.
    1.14 + * 2. Redistributions in binary form must reproduce the above copyright
    1.15 + *    notice, this list of conditions and the following disclaimer in the
    1.16 + *    documentation and/or other materials provided with the distribution.
    1.17 + *
    1.18 + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
    1.19 + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    1.20 + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
    1.21 + * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
    1.22 + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
    1.23 + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
    1.24 + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
    1.25 + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
    1.26 + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
    1.27 + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
    1.28 + * SUCH DAMAGE.
    1.29 + *
    1.30 + * $FreeBSD: src/lib/libc/include/fpmath.h,v 1.3 2005/02/06 03:23:31 das Exp $
    1.31 + */
    1.32 +
    1.33 +#include <sys/endian.h>
    1.34 +#include "_fpmath.h"
    1.35 +
    1.36 +union IEEEf2bits {
    1.37 +	float	f;
    1.38 +	struct {
    1.39 +#if _BYTE_ORDER == _LITTLE_ENDIAN
    1.40 +		unsigned int	man	:23;
    1.41 +		unsigned int	exp	:8;
    1.42 +		unsigned int	sign	:1;
    1.43 +#else /* _BIG_ENDIAN */
    1.44 +		unsigned int	sign	:1;
    1.45 +		unsigned int	exp	:8;
    1.46 +		unsigned int	man	:23;
    1.47 +#endif
    1.48 +	} bits;
    1.49 +};
    1.50 +
    1.51 +#define	DBL_MANH_SIZE	20
    1.52 +#define	DBL_MANL_SIZE	32
    1.53 +
    1.54 +union IEEEd2bits {
    1.55 +	double	d;
    1.56 +	struct {
    1.57 +#if _BYTE_ORDER == _LITTLE_ENDIAN
    1.58 +		unsigned int	manl	:32;
    1.59 +		unsigned int	manh	:20;
    1.60 +		unsigned int	exp	:11;
    1.61 +		unsigned int	sign	:1;
    1.62 +#else /* _BIG_ENDIAN */
    1.63 +		unsigned int	sign	:1;
    1.64 +		unsigned int	exp	:11;
    1.65 +		unsigned int	manh	:20;
    1.66 +		unsigned int	manl	:32;
    1.67 +#endif
    1.68 +	} bits;
    1.69 +};