mirror of
https://github.com/portapack-mayhem/mayhem-firmware.git
synced 2024-12-13 11:44:31 +00:00
033c4e9a5b
* Updated style * Updated files * fixed new line * Updated spacing * File fix WIP * Updated to clang 13 * updated comment style * Removed old comment code
57 lines
1.5 KiB
C++
57 lines
1.5 KiB
C++
/*
|
|
* Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
|
|
* Copyright (C) 2017 Furrtek
|
|
*
|
|
* This file is part of PortaPack.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2, or (at your option)
|
|
* any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; see the file COPYING. If not, write to
|
|
* the Free Software Foundation, Inc., 51 Franklin Street,
|
|
* Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#include <string>
|
|
|
|
#ifndef __DE_BRUIJN_H__
|
|
#define __DE_BRUIJN_H__
|
|
|
|
// n from 3 to 16
|
|
const uint32_t de_bruijn_polys[14]{
|
|
0b0000000000000101,
|
|
0b0000000000001001,
|
|
0b0000000000011011,
|
|
0b0000000000110011,
|
|
0b0000000001010011,
|
|
0b0000000010001101,
|
|
0b0000000100100001,
|
|
0b0000001000100001,
|
|
0b0000010001100001,
|
|
0b0000110101000011,
|
|
0b0001001001100101,
|
|
0b0010101100000011,
|
|
0b0101000000001001,
|
|
0b1010000101000101};
|
|
|
|
struct de_bruijn {
|
|
public:
|
|
size_t init(const uint32_t n);
|
|
uint32_t compute(const uint32_t steps);
|
|
|
|
private:
|
|
uint32_t length{};
|
|
uint32_t poly{};
|
|
uint32_t shift_register{};
|
|
};
|
|
|
|
#endif /*__DE_BRUIJN_H__*/
|