diff options
Diffstat (limited to 'gr-digital/include/digital/glfsr.h')
-rw-r--r-- | gr-digital/include/digital/glfsr.h | 65 |
1 files changed, 0 insertions, 65 deletions
diff --git a/gr-digital/include/digital/glfsr.h b/gr-digital/include/digital/glfsr.h deleted file mode 100644 index 4c7701d7ee..0000000000 --- a/gr-digital/include/digital/glfsr.h +++ /dev/null @@ -1,65 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2007,2012 Free Software Foundation, Inc. - * - * This file is part of GNU Radio - * - * GNU Radio 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 3, or (at your option) - * any later version. - * - * GNU Radio 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 GNU Radio; see the file COPYING. If not, write to - * the Free Software Foundation, Inc., 51 Franklin Street, - * Boston, MA 02110-1301, USA. - */ - -#ifndef INCLUDED_DIGITAL_GLFSR_H -#define INCLUDED_DIGITAL_GLFSR_H - -#include <digital/api.h> - -namespace gr { - namespace digital { - - /*! - * \brief Galois Linear Feedback Shift Register using specified polynomial mask - * \ingroup waveform_generators_blk - * - * \details - * Generates a maximal length pseudo-random sequence of length 2^degree-1 - */ - class DIGITAL_API glfsr - { - private: - int d_shift_register; - int d_mask; - - public: - glfsr(int mask, int seed) { d_shift_register = seed; d_mask = mask; } - ~glfsr(); - - static int glfsr_mask(int degree); - - unsigned char next_bit() - { - unsigned char bit = d_shift_register & 1; - d_shift_register >>= 1; - if(bit) - d_shift_register ^= d_mask; - return bit; - } - - int mask() const { return d_mask; } - }; - - } /* namespace digital */ -} /* namespace gr */ - -#endif /* INCLUDED_DIGITAL_GLFSR_H */ |