110480SAndreas.Sandberg@ARM.com/*
210480SAndreas.Sandberg@ARM.com * Copyright (c) 2014, Andreas Sandberg
310480SAndreas.Sandberg@ARM.com * All rights reserved.
410480SAndreas.Sandberg@ARM.com *
510480SAndreas.Sandberg@ARM.com * Redistribution and use in source and binary forms, with or without
610480SAndreas.Sandberg@ARM.com * modification, are permitted provided that the following conditions
710480SAndreas.Sandberg@ARM.com * are met:
810480SAndreas.Sandberg@ARM.com *
910480SAndreas.Sandberg@ARM.com * 1. Redistributions of source code must retain the above copyright
1010480SAndreas.Sandberg@ARM.com *    notice, this list of conditions and the following disclaimer.
1110480SAndreas.Sandberg@ARM.com * 2. Redistributions in binary form must reproduce the above
1210480SAndreas.Sandberg@ARM.com *    copyright notice, this list of conditions and the following
1310480SAndreas.Sandberg@ARM.com *    disclaimer in the documentation and/or other materials provided
1410480SAndreas.Sandberg@ARM.com *    with the distribution.
1510480SAndreas.Sandberg@ARM.com *
1610480SAndreas.Sandberg@ARM.com * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
1710480SAndreas.Sandberg@ARM.com * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
1810480SAndreas.Sandberg@ARM.com * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
1910480SAndreas.Sandberg@ARM.com * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
2010480SAndreas.Sandberg@ARM.com * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
2110480SAndreas.Sandberg@ARM.com * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
2210480SAndreas.Sandberg@ARM.com * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
2310480SAndreas.Sandberg@ARM.com * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2410480SAndreas.Sandberg@ARM.com * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
2510480SAndreas.Sandberg@ARM.com * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
2610480SAndreas.Sandberg@ARM.com * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
2710480SAndreas.Sandberg@ARM.com * OF THE POSSIBILITY OF SUCH DAMAGE.
2810480SAndreas.Sandberg@ARM.com */
2910480SAndreas.Sandberg@ARM.com
3010480SAndreas.Sandberg@ARM.com#ifndef _FPTYPES_H
3110480SAndreas.Sandberg@ARM.com#define _FPTYPES_H 1
3210480SAndreas.Sandberg@ARM.com
3310480SAndreas.Sandberg@ARM.com#include <stdint.h>
3410480SAndreas.Sandberg@ARM.com
3510480SAndreas.Sandberg@ARM.com#ifdef  __cplusplus
3610480SAndreas.Sandberg@ARM.comextern "C" {
3710480SAndreas.Sandberg@ARM.com#endif
3810480SAndreas.Sandberg@ARM.com
3910480SAndreas.Sandberg@ARM.com/**
4010480SAndreas.Sandberg@ARM.com * @addtogroup fp64
4110480SAndreas.Sandberg@ARM.com * @{
4210480SAndreas.Sandberg@ARM.com */
4310480SAndreas.Sandberg@ARM.com
4410480SAndreas.Sandberg@ARM.com/** Internal representation of a 64-bit float */
4510480SAndreas.Sandberg@ARM.comtypedef union {
4610480SAndreas.Sandberg@ARM.com    /**
4710480SAndreas.Sandberg@ARM.com     * Raw value exposed as an unsigned integer. Mainly used for bit
4810480SAndreas.Sandberg@ARM.com     * manipulation.
4910480SAndreas.Sandberg@ARM.com     */
5010480SAndreas.Sandberg@ARM.com    uint64_t bits;
5110480SAndreas.Sandberg@ARM.com    /** Representation using the built-in double type */
5210480SAndreas.Sandberg@ARM.com    double value;
5310480SAndreas.Sandberg@ARM.com} fp64_t;
5410480SAndreas.Sandberg@ARM.com
5510480SAndreas.Sandberg@ARM.com/** @} */
5610480SAndreas.Sandberg@ARM.com
5710480SAndreas.Sandberg@ARM.com
5810480SAndreas.Sandberg@ARM.com/**
5910480SAndreas.Sandberg@ARM.com * @addtogroup fp80
6010480SAndreas.Sandberg@ARM.com * @{
6110480SAndreas.Sandberg@ARM.com */
6210480SAndreas.Sandberg@ARM.com
6310480SAndreas.Sandberg@ARM.com/** Internal representation of an 80-bit float. */
6410480SAndreas.Sandberg@ARM.comtypedef union  {
6510480SAndreas.Sandberg@ARM.com    struct {
6610480SAndreas.Sandberg@ARM.com        /** Raw representation of the integer part bit and the
6710480SAndreas.Sandberg@ARM.com         * fraction. Note that unlike 64-bit floating point
6810480SAndreas.Sandberg@ARM.com         * representations the integer bit is explicit. */
6910480SAndreas.Sandberg@ARM.com        uint64_t fi;
7010480SAndreas.Sandberg@ARM.com        /** Raw representation of sign bit and exponent */
7110480SAndreas.Sandberg@ARM.com        uint16_t se;
7211708Sandreas.sandberg@arm.com        /** Add explicit padding to ensure this data structure
7311708Sandreas.sandberg@arm.com         * is properly aligned.
7411708Sandreas.sandberg@arm.com         */
7511708Sandreas.sandberg@arm.com        uint16_t pad[3];
7610480SAndreas.Sandberg@ARM.com    } repr;
7710480SAndreas.Sandberg@ARM.com    /**
7810480SAndreas.Sandberg@ARM.com     * Represented as a char array, mainly intended for debug dumping
7910480SAndreas.Sandberg@ARM.com     * and serialization.
8010480SAndreas.Sandberg@ARM.com     */
8111708Sandreas.sandberg@arm.com    char bits[16];
8210480SAndreas.Sandberg@ARM.com} fp80_t;
8310480SAndreas.Sandberg@ARM.com
8410480SAndreas.Sandberg@ARM.com/** @} */
8510480SAndreas.Sandberg@ARM.com
8610480SAndreas.Sandberg@ARM.com#ifdef  __cplusplus
8710480SAndreas.Sandberg@ARM.com} /* extern "C" */
8810480SAndreas.Sandberg@ARM.com#endif
8910480SAndreas.Sandberg@ARM.com
9010480SAndreas.Sandberg@ARM.com#endif
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