MSXResetStatusRegister.cc

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#include "MSXResetStatusRegister.hh"
#include "serialize.hh"
 
namespace openmsx {
 
MSXResetStatusRegister::MSXResetStatusRegister(const DeviceConfig& config)
        : MSXDevice(config)
        , inverted(config.getChildDataAsBool("inverted", false))
{
        reset(EmuTime::dummy());
}
 
void MSXResetStatusRegister::reset(EmuTime::param /*time*/)
{
        status = inverted ? 0xFF : 0x00;
}
 
byte MSXResetStatusRegister::readIO(word port, EmuTime::param time)
{
        return peekIO(port, time);
}
 
byte MSXResetStatusRegister::peekIO(word /*port*/, EmuTime::param /*time*/) const
{
        return status;
}
 
void MSXResetStatusRegister::writeIO(word /*port*/, byte value, EmuTime::param /*time*/)
{
        if (inverted) {
                status = value | 0x7F;
        } else {
                status = (status & 0x20) | (value & 0xA0);
        }
}
 
template<typename Archive>
void MSXResetStatusRegister::serialize(Archive& ar, unsigned /*version*/)
{
        ar.template serializeBase<MSXDevice>(*this);
        ar.serialize("status", status);
}
INSTANTIATE_SERIALIZE_METHODS(MSXResetStatusRegister);
REGISTER_MSXDEVICE(MSXResetStatusRegister, "F4Device"); // TODO: find a way to handle renames of classes and keep bw compat with savestates....
 
} // namespace openmsx