register.h

Linux下比较早的基于命令行的DVD播放器

//
// Copyright (c) 2002 by Istv醤 V醨adi
//
// This file is part of dxr3Player, a DVD player written specifically 
// for the DXR3 (aka Hollywood+) decoder card.

// 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.
//
// 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

#ifndef DXR3PLAYER_DVD_VM_REGISTER_H
#define DXR3PLAYER_DVD_VM_REGISTER_H
//------------------------------------------------------------------------------

#include <cstdio>

//------------------------------------------------------------------------------

namespace dvd { namespace vm {

//------------------------------------------------------------------------------

/**
 * A register.
 */
class Register
{
public:
    /**
     * The maximal value.
     */
    static const unsigned short maxValue = (unsigned short)-1;

private:
    /**
     * The value of the register.
     */
    unsigned short value;

public:
    /**
     * Construct the register.
     */
    Register();

    /**
     * Set the value of the register.
     */
    virtual void setValue(unsigned x);

    /**
     * Get the value of the register.
     */
    virtual unsigned getValue() const;

    /**
     * Save the register to the given file.
     *
     * @return if the saving has succeeded
     */
    bool save(FILE* f) const;

    /**
     * Load the register from the given file.
     *
     * @return if the loading has succeeded
     */
    bool load(FILE* f);
};

//------------------------------------------------------------------------------
// Inline definitions
//------------------------------------------------------------------------------

inline Register::Register() : value(0)
{
}

//------------------------------------------------------------------------------

inline void Register::setValue(unsigned x)
{
    value = (unsigned short)x;
}

//------------------------------------------------------------------------------

inline unsigned Register::getValue() const
{
    return value;
}

//------------------------------------------------------------------------------

} /* namespace dvd::vm */ } /* namespace dvd */

//------------------------------------------------------------------------------
#endif // DXR3PLAYER_DVD_VM_REGISTER_H

// Local variables:
// mode: c++
// End: