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◆ main openmsx / src / input / CircuitDesignerRDDongle.cc
1.5 KiB · C++ · last changed chore(): initial commit 1 month ago source blame history raw
e8555c89 Andy McCall 1 
#include "CircuitDesignerRDDongle.hh"
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#include "serialize.hh"
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#include "serialize_meta.hh"
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/*
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 The circuit designer RD dongle is a simple dongle that is used to protect the software.
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 It needs to be plugged in Joystick port B, when it's not plugged in the software will
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 add a reset command to the BLOAD hook which will reset the MSX.
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     Pin 1 = Up
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     Pin 6 = Button A
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     Pin 7 = Button B
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     Output  Input
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     pin|pin|Pin (Up)
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     7 | 6 | 1
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     -----------------
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     0 | 0 | 0
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     0 | 1 | 1
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     1 | 0 | 0
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     1 | 1 | 0
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*/
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namespace openmsx {
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// Pluggable
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zstring_view CircuitDesignerRDDongle::getName() const
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{
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	return "circuit-designer-rd-dongle";
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}
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zstring_view CircuitDesignerRDDongle::getDescription() const
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{
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	return "Circuit Designer RD dongle";
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}
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void CircuitDesignerRDDongle::plugHelper(
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	Connector& /*connector*/, EmuTime /*time*/)
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{
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}
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void CircuitDesignerRDDongle::unplugHelper(EmuTime /*time*/)
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{
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}
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// JoystickDevice
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uint8_t CircuitDesignerRDDongle::read(EmuTime /*time*/)
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{
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	return status;
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}
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void CircuitDesignerRDDongle::write(uint8_t value, EmuTime /*time*/)
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{
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	if (!(value & WR_PIN7) && (value & WR_PIN6)) {
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		status |=  JOY_UP;
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	} else {
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		status &= ~JOY_UP;
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	}
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}
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template<typename Archive>
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void CircuitDesignerRDDongle::serialize(Archive& /*ar*/, unsigned /*version*/)
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{
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	// no need to serialize 'status', port will anyway be re-written
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	// on de-serialize
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}
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INSTANTIATE_SERIALIZE_METHODS(CircuitDesignerRDDongle);
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REGISTER_POLYMORPHIC_INITIALIZER(Pluggable, CircuitDesignerRDDongle, "CircuitDesignerRDDongle");
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} // namespace openmsx