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1 | /* config.h | |
2 | * Greg Cook, 27/Jun/2016 | |
3 | */ | |
4 | ||
5 | /* CRC RevEng: arbitrary-precision CRC calculator and algorithm finder | |
6 | * Copyright (C) 2010, 2011, 2012, 2013, 2014, 2015, 2016 Gregory Cook | |
7 | * | |
8 | * This file is part of CRC RevEng. | |
9 | * | |
10 | * CRC RevEng is free software: you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation, either version 3 of the License, or | |
13 | * (at your option) any later version. | |
14 | * | |
15 | * CRC RevEng is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with CRC RevEng. If not, see <https://www.gnu.org/licenses/>. | |
22 | */ | |
23 | ||
24 | #ifndef CONFIG_H | |
25 | #define CONFIG_H 1 | |
26 | ||
27 | /***************************************** | |
28 | * * | |
29 | * Start of user configuration options * | |
30 | * * | |
31 | *****************************************/ | |
32 | ||
33 | /* A type to contain polynomial coefficient bitmaps. | |
34 | * Can be changed to 'unsigned long long' for some extended compilers. | |
35 | * Adjust BMP_C(), BMP_BIT and BMP_SUB below if this is changed. | |
36 | */ | |
37 | ||
38 | #define BMP_T unsigned long | |
39 | ||
40 | /* Creates an appropriate numeric constant for bmp_t. | |
41 | * If the underlying type is 'unsigned long long', change UL to ULL. | |
42 | */ | |
43 | ||
44 | #define BMP_C(n) (n##UL) | |
45 | ||
46 | /* Define BMPMACRO to turn the definitions of the size of a bmp_t into | |
47 | * compile-time constants. This improves efficiency but makes the code | |
48 | * platform-specific. | |
49 | */ | |
50 | ||
51 | /* #define BMPMACRO 1 */ | |
52 | ||
53 | /* Some enterprise users may wish to disable the -F switch to minimise CPU | |
54 | * usage. To do this, define the macro NOFORCE. | |
55 | */ | |
56 | ||
57 | /* #define NOFORCE 1 */ | |
58 | ||
59 | /* Define PRESETS to compile CRC RevEng with the preset models from the | |
60 | * CRC Catalogue. This implies BMPMACRO and so makes the code platform- | |
61 | * specific. | |
62 | */ | |
63 | ||
64 | #ifdef _WIN32 | |
65 | #define PRESETS 1 // | |
66 | #endif | |
67 | ||
68 | ||
69 | /* Macros defining the size of a bmp_t. | |
70 | * Their values only matter if PRESETS and/or BMPMACRO are defined, in | |
71 | * which case edit the macros below to suit your architecture. | |
72 | * Otherwise, BMP_BIT and BMP_SUB will be redefined as aliases of bmpbit | |
73 | * and bmpsub, global objects initialised at run time. | |
74 | */ | |
75 | ||
76 | /* Size in bits of a bmp_t. Not necessarily a power of two. */ | |
77 | ||
78 | #define BMP_BIT 32 | |
79 | ||
80 | /* The highest power of two that is strictly less than BMP_BIT. | |
81 | * Initialises the index of a binary search for set bits in a bmp_t. | |
82 | */ | |
83 | ||
84 | #define BMP_SUB 16 | |
85 | ||
86 | /***************************************** | |
87 | * * | |
88 | * End of user configuration options * | |
89 | * * | |
90 | *****************************************/ | |
91 | ||
92 | #endif /* CONFIG_H */ |