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////////////////////////////////////////////////////////////////////////////////////////
//
// Nestopia - NES/Famicom emulator written in C++
//
// Copyright (C) 2003-2008 Martin Freij
//
// This file is part of Nestopia.
//
// Nestopia 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.
//
// Nestopia 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 Nestopia; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
////////////////////////////////////////////////////////////////////////////////////////
#ifndef NST_IPS_H
#define NST_IPS_H
#ifdef NST_PRAGMA_ONCE
#pragma once
#endif
#include <vector>
namespace Nes
{
namespace Core
{
class Ips
{
public:
~Ips();
enum
{
MAX_LENGTH = 0xFFFFFF
};
static bool IsIps(std::istream&);
Result Load(std::istream&);
Result Test(std::istream&) const;
Result Test(const byte*,dword) const;
Result Save(std::ostream&) const;
Result Create(const byte*,const byte*,dword);
bool Patch(const byte*,byte*,dword,dword=0) const;
void Destroy();
private:
enum
{
MIN_EQUAL = 5,
MIN_BEG_RUN = 9,
MIN_MID_RUN = 13,
MIN_END_RUN = 9,
NO_FILL = 0xFFFF,
MAX_BLOCK = 0xFFFF
};
struct Block
{
byte* data;
dword offset;
word length;
word fill;
};
typedef std::vector<Block> Blocks;
Blocks blocks;
public:
bool Empty() const
{
return blocks.empty();
}
};
}
}
#endif
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