/*
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* Copyright (c) 2014, STMicroelectronics International N.V.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef GUARD_MPA_CONFIG_H
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#define GUARD_MPA_CONFIG_H
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#include <limits.h>
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#include <stdint.h>
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#include <stdbool.h>
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/************************************************************************\
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* Common definitions
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* You should go through these carefully and adjust to your environment
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\************************************************************************/
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/*
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* Definitions of different sized integers and unsigned
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*
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* mpa_word_t: should be an unsigned int of size equal to the most
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* efficient add/sub/mul/div word size of the machine.
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*
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* mpa_int_t should be a signed int of the same size as the mpa_word_t
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*
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* mpa_halfw_t: half size of mpa_word_t
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*
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* mpa_asize_t: an unsigned int of suitable size to hold the number of
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* allocated bytes for the representation. We cannot use size_t
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* since that is 64 bit long on 64 bit machines, and that is
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* ridiciously large.
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*
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* mpa_usize_t: a signed int suitable to hold the number of used mpa_word_t to
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* represent the integer.
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*
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* mpa_byte_t: the native unsigned byte type.
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*/
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typedef uint32_t mpa_word_t;
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typedef int32_t mpa_int_t;
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typedef uint16_t mpa_halfw_t;
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typedef uint32_t mpa_asize_t;
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typedef int32_t mpa_usize_t;
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typedef uint8_t mpa_byte_t;
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/* Number of bits in mpa_word_t */
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#define MPA_WORD_SIZE 32
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/* Largest representable number in a mpa_int_t */
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#define MPA_INT_MAX INT32_MAX
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/* Smallest representable number in a mpa_int_t */
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#define MPA_INT_MIN INT32_MIN
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/* The Log2(MPA_WORD_SIZE) */
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#define MPA_LOG_OF_WORD_SIZE 5
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/* The Log2 of number of bytes in a mpa_word_t */
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#define MPA_LOG_OF_BYTES_PER_WORD 2
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/* The largest power of 10 representable in a mpa_word_t */
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#define LARGEST_DECIMAL_BASE_IN_WORD 1000000000
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/* the number of decimal digits minus 1 in LARGEST_DECIMAL_BASE_IN_WORD */
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#define LARGEST_DECIMAL_BASE_DIGITS 9
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/* The largest string size to represent a big number as a string */
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#define MPA_STR_MAX_SIZE (4096 + 2)
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/* define MPA_BIG_ENDIAN or MPA_LITTLE_ENDIAN */
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#define MPA_LITTLE_ENDIAN
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/*#define MPA_BIG_ENDIAN */
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/*
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* comment out the line below if your system does not support "unsigned
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* long long"
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*/
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#define MPA_SUPPORT_DWORD_T
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/*
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* define if you want to use ARM assembler code for certain cruicial
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* functions
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*/
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/* #define USE_ARM_ASM */
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/*
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* Include functionality for converting to and from strings; mpa_set_string
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* and mpa_get_string.
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*/
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#define MPA_INCLUDE_STRING_CONVERSION
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/*
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* Quick fix to be able to better define these mem functions later
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*/
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#define MACRO_DEF_MPA_MEMFUNCS
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#ifdef MACRO_DEF_MPA_MEMFUNCS
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#include <stdlib.h>
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#include <string.h>
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#define mpa_memset memset
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#define mpa_memcpy memcpy
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#define mpa_memmove memmove
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#endif
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#endif /* include guard */
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