emuc64.h

// emuc64.h - Commodore 64 Emulator
//
////////////////////////////////////////////////////////////////////////////////
//
// c-simple-emu-cbm (C Portable Version)
// C64/6502 Emulator for Microsoft Windows Console
//
// MIT License
//
// Copyright (c) 2024 by David R. Van Wagner
// davevw.com
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
//
////////////////////////////////////////////////////////////////////////////////

#pragma once

#include "emucbm.h"

class EmuC64 : public EmuCBM
{
public:
	EmuC64(int ram_size);
	virtual ~EmuC64();

protected:
	bool ExecutePatch();

private:
	byte GetMemory(ushort addr);
	void SetMemory(ushort addr, byte value);
	void CheckBypassSETNAM();
	void CheckBypassSETLFS();

private:
	int go_state = 0;

private:
	EmuC64(const EmuC64& other); // disabled
	bool operator==(const EmuC64& other) const; // disabled
};

class C64Memory : public Emu6502::Memory
{
public:
	C64Memory(int ram_size);
	virtual ~C64Memory();
	virtual byte read(ushort addr);
	virtual void write(ushort addr, byte value);

public:
	byte* basic_rom;
	byte* char_rom;
	byte* kernal_rom;

	static const int basic_rom_size = 8 * 1024;
	static const int char_rom_size = 4 * 1024;
	static const int kernal_rom_size = 8 * 1024;

private:
	int ram_size;
	byte* ram;
	//byte* io;
	byte* color_nybles;

private:
	C64Memory(const C64Memory& other); // disabled
	bool operator==(const C64Memory& other) const; // disabled
};