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1da177e4 LT |
1 | /****************************************************************************** |
2 | * | |
3 | * (C)Copyright 1998,1999 SysKonnect, | |
4 | * a business unit of Schneider & Koch & Co. Datensysteme GmbH. | |
5 | * | |
6 | * See the file "skfddi.c" for further information. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * The information in this file is provided "AS IS" without warranty. | |
14 | * | |
15 | ******************************************************************************/ | |
16 | ||
17 | #ifndef lint | |
18 | static const char xID_sccs[] = "@(#)can.c 1.5 97/04/07 (C) SK " ; | |
19 | #endif | |
20 | ||
21 | /* | |
22 | * canonical bit order | |
23 | */ | |
24 | const u_char canonical[256] = { | |
25 | 0x00,0x80,0x40,0xc0,0x20,0xa0,0x60,0xe0, | |
26 | 0x10,0x90,0x50,0xd0,0x30,0xb0,0x70,0xf0, | |
27 | 0x08,0x88,0x48,0xc8,0x28,0xa8,0x68,0xe8, | |
28 | 0x18,0x98,0x58,0xd8,0x38,0xb8,0x78,0xf8, | |
29 | 0x04,0x84,0x44,0xc4,0x24,0xa4,0x64,0xe4, | |
30 | 0x14,0x94,0x54,0xd4,0x34,0xb4,0x74,0xf4, | |
31 | 0x0c,0x8c,0x4c,0xcc,0x2c,0xac,0x6c,0xec, | |
32 | 0x1c,0x9c,0x5c,0xdc,0x3c,0xbc,0x7c,0xfc, | |
33 | 0x02,0x82,0x42,0xc2,0x22,0xa2,0x62,0xe2, | |
34 | 0x12,0x92,0x52,0xd2,0x32,0xb2,0x72,0xf2, | |
35 | 0x0a,0x8a,0x4a,0xca,0x2a,0xaa,0x6a,0xea, | |
36 | 0x1a,0x9a,0x5a,0xda,0x3a,0xba,0x7a,0xfa, | |
37 | 0x06,0x86,0x46,0xc6,0x26,0xa6,0x66,0xe6, | |
38 | 0x16,0x96,0x56,0xd6,0x36,0xb6,0x76,0xf6, | |
39 | 0x0e,0x8e,0x4e,0xce,0x2e,0xae,0x6e,0xee, | |
40 | 0x1e,0x9e,0x5e,0xde,0x3e,0xbe,0x7e,0xfe, | |
41 | 0x01,0x81,0x41,0xc1,0x21,0xa1,0x61,0xe1, | |
42 | 0x11,0x91,0x51,0xd1,0x31,0xb1,0x71,0xf1, | |
43 | 0x09,0x89,0x49,0xc9,0x29,0xa9,0x69,0xe9, | |
44 | 0x19,0x99,0x59,0xd9,0x39,0xb9,0x79,0xf9, | |
45 | 0x05,0x85,0x45,0xc5,0x25,0xa5,0x65,0xe5, | |
46 | 0x15,0x95,0x55,0xd5,0x35,0xb5,0x75,0xf5, | |
47 | 0x0d,0x8d,0x4d,0xcd,0x2d,0xad,0x6d,0xed, | |
48 | 0x1d,0x9d,0x5d,0xdd,0x3d,0xbd,0x7d,0xfd, | |
49 | 0x03,0x83,0x43,0xc3,0x23,0xa3,0x63,0xe3, | |
50 | 0x13,0x93,0x53,0xd3,0x33,0xb3,0x73,0xf3, | |
51 | 0x0b,0x8b,0x4b,0xcb,0x2b,0xab,0x6b,0xeb, | |
52 | 0x1b,0x9b,0x5b,0xdb,0x3b,0xbb,0x7b,0xfb, | |
53 | 0x07,0x87,0x47,0xc7,0x27,0xa7,0x67,0xe7, | |
54 | 0x17,0x97,0x57,0xd7,0x37,0xb7,0x77,0xf7, | |
55 | 0x0f,0x8f,0x4f,0xcf,0x2f,0xaf,0x6f,0xef, | |
56 | 0x1f,0x9f,0x5f,0xdf,0x3f,0xbf,0x7f,0xff | |
57 | } ; | |
58 | ||
59 | #ifdef MAKE_TABLE | |
60 | int byte_reverse(x) | |
61 | int x ; | |
62 | { | |
63 | int y = 0 ; | |
64 | ||
65 | if (x & 0x01) | |
66 | y |= 0x80 ; | |
67 | if (x & 0x02) | |
68 | y |= 0x40 ; | |
69 | if (x & 0x04) | |
70 | y |= 0x20 ; | |
71 | if (x & 0x08) | |
72 | y |= 0x10 ; | |
73 | if (x & 0x10) | |
74 | y |= 0x08 ; | |
75 | if (x & 0x20) | |
76 | y |= 0x04 ; | |
77 | if (x & 0x40) | |
78 | y |= 0x02 ; | |
79 | if (x & 0x80) | |
80 | y |= 0x01 ; | |
81 | return(y) ; | |
82 | } | |
83 | #endif |