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/* $OpenBSD: ieee.h,v 1.4 2011/11/08 17:06:51 deraadt Exp $ */
/* $NetBSD: ieee.h,v 1.2 2001/02/21 17:43:50 bjh21 Exp $ */
/*
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This software was developed by the Computer Systems Engineering group
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
* contributed to Berkeley.
*
* All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Lawrence Berkeley Laboratory.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)ieee.h 8.1 (Berkeley) 6/11/93
*/
#ifndef _MACHINE_IEEE_H_
#define _MACHINE_IEEE_H_
#include <sys/types.h>
__BEGIN_DECLS
#define SNG_EXPBITS 8
#define SNG_FRACBITS 23
#define SNG_EXP_INFNAN 255
#define SNG_EXP_BIAS 127
struct ieee_single {
unsigned sng_frac:23;
unsigned sng_exp:8;
unsigned sng_sign:1;
};
#define DBL_EXPBITS 11
#define DBL_FRACHBITS 20
#define DBL_FRACLBITS 32
#define DBL_FRACBITS 52
#define DBL_EXP_INFNAN 2047
#define DBL_EXP_BIAS 1023
struct ieee_double {
unsigned dbl_fracl;
unsigned dbl_frach:20;
unsigned dbl_exp:11;
unsigned dbl_sign:1;
};
#if __LP64__
/* 64-bit Android uses ld128 long doubles. */
#define EXT_EXPBITS 15
#define EXT_FRACHBITS 16
#define EXT_FRACHMBITS 32
#define EXT_FRACLMBITS 32
#define EXT_FRACLBITS 32
#define EXT_FRACBITS 112
#define EXT_EXP_INFNAN 32767
#define EXT_EXP_BIAS 16383
#define EXT_IMPLICIT_NBIT
#define EXT_TO_ARRAY32(p, a) do { \
(a)[0] = (uint32_t)(p)->ext_fracl; \
(a)[1] = (uint32_t)(p)->ext_fraclm; \
(a)[2] = (uint32_t)(p)->ext_frachm; \
(a)[3] = (uint32_t)(p)->ext_frach; \
} while(0)
struct ieee_ext {
unsigned ext_fracl;
unsigned ext_fraclm;
unsigned ext_frachm;
unsigned ext_frach:16;
unsigned ext_exp:15;
unsigned ext_sign:1;
};
#endif
__END_DECLS
#endif /* _MACHINE_IEEE_H_ */
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