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#pragma once
#include "nes/util/address.hh"
namespace nes
{
class cartridge;
class mapper
{
using read_func = std::uint8_t(mapper::*)(address);
using write_func = void(mapper::*)(address, std::uint8_t);
cartridge& cartridge_;
read_func read_;
write_func write_;
public:
static auto select(cartridge&) -> mapper;
mapper(mapper const&) = delete;
mapper(mapper&&) = delete;
auto operator=(mapper const&) -> mapper& = delete;
auto operator=(mapper&&) -> mapper& = delete;
auto read(address const addr) -> std::uint8_t
{
return (this->*read_)(addr);
}
auto write(address const addr, std::uint8_t const value) -> void
{
(this->*write_)(addr, value);
}
private:
explicit mapper(cartridge& cartridge, read_func read, write_func write);
// Implementations
auto nrom_read(address) -> std::uint8_t;
auto nrom_write(address, std::uint8_t) -> void;
};
} // namespace nes
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