address.h

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//    sampalib.org ESL library and tools
//    Copyright (C) 2007  Thierry Grellier
//
//    This program is free software; you can redistribute it and/or modify
//    it under the terms of the GNU General Public License version 2 as
//    published by the Free Software Foundation.
//
//    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; if not, write to the Free Software Foundation, Inc.,
//    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
//    contact: www.sampalib.org

#ifndef SAMPA_CORE_ADDRESS_H
#define SAMPA_CORE_ADDRESS_H

#include "sampa/core/persistence.h"

namespace Sampa {

  typedef unsigned long  Address;

  Address range_to_address(int);

  struct AddressGeneratorInterface {
    virtual Address generate(int align) = 0;
  };

  class SAMPA_PERSISTENT_CLASS(AddressGenerator) {
  public:
    enum Mode { 
      INCREMENTAL, 
      RANDOM       
    };

    AddressGenerator(int burst_size, int word_size);

    Address generate(int align = 1) { return m_generator->generate(align); }

    Address operator()(int align = 1) { return m_generator->generate(align); }

  private:
    AddressGeneratorInterface* m_generator;
    SAMPA_PERSISTENT(AddressGenerator);
  };

}

#endif

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