1 /* $NetBSD: sbc_crc.c,v 1.3 2017/01/30 15:56:44 christos Exp $ */
2
3 /*-
4 * Copyright (c) 2015 Nathanial Sloss <nathanialsloss@yahoo.com.au>
5 * All rights reserved.
6 *
7 * This software is dedicated to the memory of -
8 * Baron James Anlezark (Barry) - 1 Jan 1949 - 13 May 2012.
9 *
10 * Barry was a man who loved his music.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 * POSSIBILITY OF SUCH DAMAGE.
32 */
33
34 #include <stdio.h>
35
36 int
main(void)37 main(void)
38 {
39 unsigned int j, i, k, numbits, data;
40
41 printf("/* sbc_crc.h - Automatically generated by sbc_crc.c. */\n\n");
42
43 /* The CRC-8 polynomial this uses is 0x11D */
44
45 numbits = 8;
46 for (k = 0; k < 2; k++) {
47 printf("static const uint8_t sbc_crc%u[256] = {\n\t", numbits);
48 for (i = 0; i < 256; i++) {
49 data = i;
50
51 for (j = 0; j < numbits; j++) {
52 if (data & 0x80) {
53 data <<= 1;
54 data ^= 0x1d;
55 } else
56 data <<= 1;
57 }
58
59 if (i % 8 == 0 && i != 0)
60 printf("\n\t");
61
62 printf("0x%02x, ", data & 0xff);
63 }
64 printf("\n};\n\n");
65
66 numbits /= 2;
67 }
68 return 0;
69 }
70