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32 lines
708 B
C++
32 lines
708 B
C++
//
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// CartridgeUnpaged.h
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// Clock Signal
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//
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// Created by Thomas Harte on 17/03/2017.
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// Copyright © 2017 Thomas Harte. All rights reserved.
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//
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#ifndef Atari2600_CartridgeUnpaged_hpp
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#define Atari2600_CartridgeUnpaged_hpp
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#include "Cartridge.hpp"
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namespace Atari2600 {
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namespace Cartridge {
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class Unpaged: public BusExtender {
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public:
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Unpaged(uint8_t *rom_base, std::size_t rom_size) : BusExtender(rom_base, rom_size) {}
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void perform_bus_operation(CPU::MOS6502::BusOperation operation, uint16_t address, uint8_t *value) {
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if(isReadOperation(operation) && (address & 0x1000)) {
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*value = rom_base_[address & (rom_size_ - 1)];
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}
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}
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};
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}
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}
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#endif /* Atari2600_CartridgeUnpaged_hpp */
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