GeoRam.h

// -----------------------------------------------------------------------------
// This file is part of VirtualC64
//
// Copyright (C) Dirk W. Hoffmann. www.dirkwhoffmann.de
// This FILE is dual-licensed. You are free to choose between:
//
//     - The GNU General Public License v3 (or any later version)
//     - The Mozilla Public License v2
//
// SPDX-License-Identifier: GPL-3.0-or-later OR MPL-2.0
// -----------------------------------------------------------------------------
 
#pragma once
 
#include "Cartridge.h"
 
namespace vc64 {
 
class GeoRAM final : public Cartridge {
 
    CartridgeTraits traits = {
 
        .type       = CRT_GEO_RAM,
        .title      = "GeoRam",
        .memory     = 0,            // Set in constructor
        .battery    = true
    };
 
    virtual const CartridgeTraits &getCartridgeTraits() const override { return traits; }
 
private:
 
    // Selected RAM bank
    u8 bank = 0;
 
    // Selected page inside the selected RAM bank
    u8 page = 0;
 
 
    //
    // Initializing
    //
 
public:
 
    GeoRAM(C64 &ref) : Cartridge(ref) { };
    GeoRAM(C64 &ref, isize kb);
 
 
    //
    // Methods from CoreObject
    //
 
private:
 
    void _dump(Category category, std::ostream& os) const override;
 
 
    //
    // Methods from CoreComponent
    //
 
public:
 
    GeoRAM& operator= (const GeoRAM& other) {
 
        Cartridge::operator=(other);
 
        CLONE(bank)
        CLONE(page)
 
        return *this;
    }
    virtual void clone(const Cartridge &other) override { *this = (const GeoRAM &)other; }
 
    template <class T>
    void serialize(T& worker)
    {
        if (isResetter(worker)) return;
 
        worker
 
        << bank
        << page;
 
    } CARTRIDGE_SERIALIZERS(serialize);
 
 
    //
    // Accessing cartridge memory
    //
 
public:
 
    u8 peekIO1(u16 addr) override;
    u8 spypeekIO1(u16 addr) const override;
    u8 peekIO2(u16 addr) override;
    u8 spypeekIO2(u16 addr) const override;
    void pokeIO1(u16 addr, u8 value) override;
    void pokeIO2(u16 addr, u8 value) override;
 
private:
 
    // Maps an address to the proper position in cartridge RAM
    isize offset(u8 addr) const;
};
 
}