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104 lines
3.1 KiB
C
104 lines
3.1 KiB
C
/* config.h
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* Greg Cook, 23/Feb/2019
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*/
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/* CRC RevEng: arbitrary-precision CRC calculator and algorithm finder
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* Copyright (C) 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018,
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* 2019 Gregory Cook
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*
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* This file is part of CRC RevEng.
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*
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* CRC RevEng is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* CRC RevEng is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with CRC RevEng. If not, see <https://www.gnu.org/licenses/>.
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*/
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#ifndef CONFIG_H
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#define CONFIG_H 1
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/*****************************************
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* *
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* Start of user configuration options *
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* *
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*****************************************/
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/* A type to contain polynomial coefficient bitmaps.
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* Can be changed to 'unsigned long long' for some extended compilers.
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* Adjust BMP_C(), BMP_BIT and BMP_SUB below if this is changed.
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*/
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#define BMP_T unsigned long
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/* Creates an appropriate numeric constant for bmp_t.
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* If the underlying type is 'unsigned long long', change UL to ULL.
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*/
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#define BMP_C(n) (n##UL)
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/* Define BMPMACRO to turn the definitions of the size of a bmp_t into
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* compile-time constants. This improves efficiency but makes the code
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* platform-specific.
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*/
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/* #define BMPMACRO 1 */
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/* Some enterprise users may wish to disable the -F switch to minimise CPU
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* usage. To do this, define the macro ALWPCK.
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*/
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/* #define ALWPCK 1 */
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/* #define PRESETS 1
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* Define PRESETS to compile CRC RevEng with the preset models from the
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* CRC Catalogue. This implies BMPMACRO and so makes the code platform-
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* specific.
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*/
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/* #define BMP_BIT 32
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* Macros defining the size of a bmp_t.
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* Their values only matter if PRESETS and/or BMPMACRO are defined, in
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* which case edit the macros below to suit your architecture.
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* Otherwise, BMP_BIT and BMP_SUB will be redefined as aliases of bmpbit
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* and bmpsub, global objects initialised at run time.
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*/
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/* #define BMP_SUB 16
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* The highest power of two that is strictly less than BMP_BIT.
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* Initialises the index of a binary search for set bits in a bmp_t.
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*/
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#include <stdint.h>
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#include <limits.h>
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#if ULONG_MAX == UINT64_MAX
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// most 64-bit platforms
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#define PRESETS 1
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#define BMP_BIT 64
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#define BMP_SUB 32
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#elif ULONG_MAX == UINT32_MAX
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// 32-bit platforms and Mingw64
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#define PRESETS 1
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#define BMP_BIT 32
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#define BMP_SUB 16
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#else
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#error Cannot determine automatically REVENG PRESETS Macros for your platform, you need to set them manually
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#endif
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/*****************************************
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* *
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* End of user configuration options *
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* *
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*****************************************/
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#endif /* CONFIG_H */
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