diff options
Diffstat (limited to 'lib/libmpa/include/mpalib_config.h')
| -rw-r--r-- | lib/libmpa/include/mpalib_config.h | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/lib/libmpa/include/mpalib_config.h b/lib/libmpa/include/mpalib_config.h new file mode 100644 index 0000000..08ab5e0 --- /dev/null +++ b/lib/libmpa/include/mpalib_config.h @@ -0,0 +1,125 @@ +/* + * Copyright (c) 2014, STMicroelectronics International N.V. + * All rights reserved. + * + * 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. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT HOLDER 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. + */ +#ifndef GUARD_MPA_CONFIG_H +#define GUARD_MPA_CONFIG_H + +#include <limits.h> +#include <stdint.h> +#include <stdbool.h> + +/************************************************************************\ + * Common definitions + * You should go through these carefully and adjust to your environment + \************************************************************************/ + +/* + * Definitions of different sized integers and unsigned + * + * mpa_word_t: should be an unsigned int of size equal to the most + * efficient add/sub/mul/div word size of the machine. + * + * mpa_int_t should be a signed int of the same size as the mpa_word_t + * + * mpa_halfw_t: half size of mpa_word_t + * + * mpa_asize_t: an unsigned int of suitable size to hold the number of + * allocated bytes for the representation. We cannot use size_t + * since that is 64 bit long on 64 bit machines, and that is + * ridiciously large. + * + * mpa_usize_t: a signed int suitable to hold the number of used mpa_word_t to + * represent the integer. + * + * mpa_byte_t: the native unsigned byte type. + */ +typedef uint32_t mpa_word_t; +typedef int32_t mpa_int_t; +typedef uint16_t mpa_halfw_t; +typedef uint32_t mpa_asize_t; +typedef int32_t mpa_usize_t; +typedef uint8_t mpa_byte_t; + +/* Number of bits in mpa_word_t */ +#define MPA_WORD_SIZE 32 + +/* Largest representable number in a mpa_int_t */ +#define MPA_INT_MAX INT32_MAX + +/* Smallest representable number in a mpa_int_t */ +#define MPA_INT_MIN INT32_MIN + +/* The Log2(MPA_WORD_SIZE) */ +#define MPA_LOG_OF_WORD_SIZE 5 + +/* The Log2 of number of bytes in a mpa_word_t */ +#define MPA_LOG_OF_BYTES_PER_WORD 2 + +/* The largest power of 10 representable in a mpa_word_t */ +#define LARGEST_DECIMAL_BASE_IN_WORD 1000000000 + +/* the number of decimal digits minus 1 in LARGEST_DECIMAL_BASE_IN_WORD */ +#define LARGEST_DECIMAL_BASE_DIGITS 9 + +/* The largest string size to represent a big number as a string */ +#define MPA_STR_MAX_SIZE (4096 + 2) + +/* define MPA_BIG_ENDIAN or MPA_LITTLE_ENDIAN */ +#define MPA_LITTLE_ENDIAN +/*#define MPA_BIG_ENDIAN */ + +/* + * comment out the line below if your system does not support "unsigned + * long long" + */ +#define MPA_SUPPORT_DWORD_T + +/* + * define if you want to use ARM assembler code for certain cruicial + * functions + */ +/* #define USE_ARM_ASM */ + +/* + * Include functionality for converting to and from strings; mpa_set_string + * and mpa_get_string. + */ +#define MPA_INCLUDE_STRING_CONVERSION + +/* + * Quick fix to be able to better define these mem functions later + */ +#define MACRO_DEF_MPA_MEMFUNCS + +#ifdef MACRO_DEF_MPA_MEMFUNCS +#include <stdlib.h> +#include <string.h> +#define mpa_memset memset +#define mpa_memcpy memcpy +#define mpa_memmove memmove +#endif + +#endif /* include guard */ |