/***************************************************************************
                          interleaver.cpp  -  description
                             -------------------
    begin                : Sam Mär 1 2003
    copyright            : (C) 2003 by Volker Schroer
    email                : dl1ksv@gmx.de
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   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 of the License, or     *
 *   (at your option) any later version.                                   *
 ***************************************************************************/

#include "interleaver.h"

Interleaver::Interleaver()
{
pipe0 = 0;
pipe1 = 0;
pipe2 = 0;
pipe3 = 0;

}
Interleaver::~Interleaver()
{
}
int Interleaver::interleave(int bits)
{
pipe0 = (pipe0 << 1) | ((bits >> 0) & 1);
pipe1 = (pipe1 << 1) | ((bits >> 1) & 1);
pipe2 = (pipe2 << 1) | ((bits >> 2) & 1);
pipe3 = (pipe3 << 1) | ((bits >> 3) & 1);

/**
bits  = (pipe0 >> 3) & 1;
bits |= (pipe1 >> 1) & 2;
bits |= (pipe2 << 1) & 4;
bits |= (pipe3 << 3) & 8;
**/
bits  = pipe0 & 1;
bits |= pipe1 & 2;
bits |= pipe2 & 4;
bits |= pipe3 & 8;

return bits;
}