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CLK/Machines/Atari/2600/Cartridges/Unpaged.hpp
2024-01-16 23:34:46 -05:00

27 lines
582 B
C++

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