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CLK/Machines/Atari2600/Cartridges/CartridgeUnpaged.hpp

31 lines
693 B
C++

//
// CartridgeUnpaged.h
// Clock Signal
//
// Created by Thomas Harte on 17/03/2017.
// Copyright © 2017 Thomas Harte. All rights reserved.
//
#ifndef Atari2600_CartridgeUnpaged_hpp
#define Atari2600_CartridgeUnpaged_hpp
#include "Cartridge.hpp"
namespace Atari2600 {
class CartridgeUnpaged: public Cartridge<CartridgeUnpaged> {
public:
CartridgeUnpaged(const std::vector<uint8_t> &rom) :
Cartridge(rom) {}
void perform_bus_operation(CPU::MOS6502::BusOperation operation, uint16_t address, uint8_t *value) {
if(isReadOperation(operation) && (address & 0x1000)) {
*value = rom_[address & (rom_.size() - 1)];
}
}
};
}
#endif /* Atari2600_CartridgeUnpaged_hpp */