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      1 /*-
      2  * Copyright (c) 2002, 2003 David Schultz <das (at) FreeBSD.ORG>
      3  * All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  * 1. Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  * 2. Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in the
     12  *    documentation and/or other materials provided with the distribution.
     13  *
     14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     24  * SUCH DAMAGE.
     25  *
     26  * $FreeBSD$
     27  */
     28 
     29 union IEEEl2bits {
     30 	long double	e;
     31 	struct {
     32 #ifndef __MIPSEB__
     33 		unsigned int	manl	:32;
     34 		unsigned int	manh	:20;
     35 		unsigned int	exp	:11;
     36 		unsigned int	sign	:1;
     37 #else
     38 		unsigned int		sign	:1;
     39 		unsigned int		exp	:11;
     40 		unsigned int		manh	:20;
     41 		unsigned int		manl	:32;
     42 #endif
     43 	} bits;
     44 };
     45 
     46 #define	LDBL_NBIT	0
     47 #define	mask_nbit_l(u)	((void)0)
     48 #define	LDBL_IMPLICIT_NBIT
     49 
     50 #define	LDBL_MANH_SIZE	20
     51 #define	LDBL_MANL_SIZE	32
     52 
     53 #define	LDBL_TO_ARRAY32(u, a) do {			\
     54 	(a)[0] = (uint32_t)(u).bits.manl;		\
     55 	(a)[1] = (uint32_t)(u).bits.manh;		\
     56 } while(0)
     57