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◆ main openmsx / src / MSXResetStatusRegister.cc
1.1 KiB · C++ · last changed chore(): initial commit 1 month ago source blame history raw
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#include "MSXResetStatusRegister.hh"
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#include "serialize.hh"
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namespace openmsx {
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MSXResetStatusRegister::MSXResetStatusRegister(const DeviceConfig& config)
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	: MSXDevice(config)
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	, inverted(config.getChildDataAsBool("inverted", false))
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{
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	reset(EmuTime::dummy());
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}
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void MSXResetStatusRegister::reset(EmuTime /*time*/)
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{
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	status = inverted ? 0xFF : 0x00;
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}
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byte MSXResetStatusRegister::readIO(uint16_t port, EmuTime time)
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{
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	return peekIO(port, time);
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}
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byte MSXResetStatusRegister::peekIO(uint16_t /*port*/, EmuTime /*time*/) const
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{
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	return status;
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}
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void MSXResetStatusRegister::writeIO(uint16_t /*port*/, byte value, EmuTime /*time*/)
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{
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	if (inverted) {
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		status = value | 0x7F;
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	} else {
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		status = (status & 0x20) | (value & 0xA0);
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	}
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}
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template<typename Archive>
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void MSXResetStatusRegister::serialize(Archive& ar, unsigned /*version*/)
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{
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	ar.template serializeBase<MSXDevice>(*this);
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	ar.serialize("status", status);
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}
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INSTANTIATE_SERIALIZE_METHODS(MSXResetStatusRegister);
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REGISTER_MSXDEVICE(MSXResetStatusRegister, "F4Device"); // TODO: find a way to handle renames of classes and keep bw compat with savestates....
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} // namespace openmsx