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/**************************************************************************/
/*!
@file IEEE11073float.h
*/
/**************************************************************************/
/**
* \file bytelib.c
* \brief Byte manipulation module implementation.
* Copyright (C) 2010 Signove Tecnologia Corporation.
* All rights reserved.
* Contact: Signove Tecnologia Corporation (contact@signove.com)
*
* $LICENSE_TEXT:BEGIN$
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation and appearing
* in the file LICENSE included in the packaging of this file; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
* $LICENSE_TEXT:END$
*
* \author Walter Guerra, Mateus Lima
* \date Jun 14, 2010
*/
#ifndef _IEEE11073FLOAT_H_
#define _IEEE11073FLOAT_H_
#include <stdint.h>
typedef enum {
MDER_POSITIVE_INFINITY = 0x007FFFFE,
MDER_NaN = 0x007FFFFF,
MDER_NRes = 0x00800000,
MDER_RESERVED_VALUE = 0x00800001,
MDER_NEGATIVE_INFINITY = 0x00800002
} ReservedFloatValues;
static const int32_t FIRST_RESERVED_VALUE = MDER_POSITIVE_INFINITY;
// (2 ** 23 - 3)
#define MDER_FLOAT_MANTISSA_MAX 0x007FFFFD
// 2 ** 7 - 1
#define MDER_FLOAT_EXPONENT_MAX 127
#define MDER_FLOAT_EXPONENT_MIN -128
// (2 ** 23 - 3) * 10 ** 127
#define MDER_FLOAT_MAX 8.388604999999999e+133
// -(2 ** 23 - 3) * 10 ** 127
#define MDER_FLOAT_MIN (-MDER_FLOAT_MAX)
// 10 ** -128
#define MDER_FLOAT_EPSILON 1e-128
// 10 ** upper(23 * log(2) / log(10))
// precision for a number 1.0000xxx
#define MDER_FLOAT_PRECISION 10000000
typedef enum {
MDER_S_POSITIVE_INFINITY = 0x07FE,
MDER_S_NaN = 0x07FF,
MDER_S_NRes = 0x0800,
MDER_S_RESERVED_VALUE = 0x0801,
MDER_S_NEGATIVE_INFINITY = 0x0802
} ReservedSFloatValues;
static const uint32_t FIRST_S_RESERVED_VALUE = MDER_S_POSITIVE_INFINITY;
// (2 ** 11 - 3)
#define MDER_SFLOAT_MANTISSA_MAX 0x07FD
// 2 ** 3 - 1
#define MDER_SFLOAT_EXPONENT_MAX 7
#define MDER_SFLOAT_EXPONENT_MIN -8
// (2 ** 11 - 3) * 10 ** 7
#define MDER_SFLOAT_MAX 20450000000.0
// -(2 ** 11 - 3) * 10 ** 7
#define MDER_SFLOAT_MIN (-MDER_SFLOAT_MAX)
// 10 ** -8
#define MDER_SFLOAT_EPSILON 1e-8
// 10 ** upper(11 * log(2) / log(10))
#define MDER_SFLOAT_PRECISION 10000
uint32_t float2IEEE11073(double data, uint8_t output[4]);
#endif /* _IEEE11073FLOAT_H_ */
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