/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 */

#ifndef GLK_ALAN2_INTERPRETER
#define GLK_ALAN2_INTERPRETER

#include "glk/alan2/acode.h"
#include "glk/alan2/alan2.h"

namespace Glk {
namespace Alan2 {

class Execute;
class SaveLoad;

class Interpreter {
public:
	Interpreter(Execute *execute, SaveLoad *saveLoad, Alan2Stack *stack) : _execute(execute), _saveLoad(saveLoad), _stack(stack) {}
	void interpret(Aaddr adr);

private:
	void if_(Aword v);
	void else_();
	void depstart();
	void swap();
	void depexec(Aword v);
	void depcase();
	void curVar(Aword i);
	void stMop(Aword i, Aaddr oldpc);
	void adaptOldOpcodes(Aword i);

	Execute *_execute;
	SaveLoad *_saveLoad;
	Alan2Stack *_stack;
};

} // End of namespace Alan2
} // End of namespace Glk

#endif