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#pragma once
#include "nes/sys/types/address.hh"
#include "nes/sys/types/status.hh"
#include "nes/common/types.hh"
#include "nes/common/span.hh"
namespace nes::sys
{
class cartridge;
class mapper
{
public:
static auto invalid() -> mapper&;
static auto get(u8 number) -> mapper&;
virtual ~mapper() = default;
mapper(mapper const&) = delete;
mapper(mapper&&) = delete;
auto operator=(mapper const&) -> mapper& = delete;
auto operator=(mapper&&) -> mapper& = delete;
virtual auto validate(cartridge&) -> status = 0;
virtual auto read_cpu(address, cartridge&) -> u8 = 0;
virtual auto write_cpu(address, u8, cartridge&) -> void = 0;
virtual auto read_ppu(address, cartridge&, span<u8 const> vram) -> u8 = 0;
virtual auto write_ppu(address, u8, cartridge&, span<u8> vram) -> void = 0;
protected:
explicit mapper() = default;
};
} // namespace nes::sys
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