// Retrohard 31-in-1 cartridge

//

//  31 in 1 cartridges use Port &H94 for mapping 32kB games at their respective

//  offsets into 0x4000-0xBFFF

#include "RomRetroHard31in1.hh"

#include "MSXCPUInterface.hh"

#include "serialize.hh"

#include "unreachable.hh"

namespace openmsx {

RomRetroHard31in1::RomRetroHard31in1(const DeviceConfig& config, Rom&& rom_)

	: Rom16kBBlocks(config, std::move(rom_))

{

	reset(EmuTime::dummy());

	getCPUInterface().register_IO_Out(0x94, this);

}

RomRetroHard31in1::~RomRetroHard31in1()

{

	getCPUInterface().unregister_IO_Out(0x94, this);

}

void RomRetroHard31in1::reset(EmuTime time)

{

	writeIO(0x94, 0, time);

}

void RomRetroHard31in1::writeIO(uint16_t /*port*/, byte value, EmuTime /*time*/)

{

	byte page = 2 * (value & 0x1F);

	// note: we use a mirrored configuration here on purpose.

	// Without this, H.E.R.O. doesn't work from the dump I got.

	setRom(0, page + 1);

	setRom(1, page + 0);

	setRom(2, page + 1);

	setRom(3, page + 0);

}

byte* RomRetroHard31in1::getWriteCacheLine(uint16_t /*address*/)

{

	return unmappedWrite.data();

}

REGISTER_MSXDEVICE(RomRetroHard31in1, "RomRetroHard31in1");

} // namespace openmsx