OXYGENHUB
◆ main openmsx / src / SG1000Pause.cc
1.3 KiB · C++ · last changed chore(): initial commit 1 month ago source blame history raw
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#include "SG1000Pause.hh"
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#include "Event.hh"
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#include "MSXCPU.hh"
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#include "MSXEventDistributor.hh"
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#include "MSXMotherBoard.hh"
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#include "SDLKey.hh"
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#include "serialize.hh"
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namespace openmsx {
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SG1000Pause::SG1000Pause(const DeviceConfig& config)
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	: MSXDevice(config)
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	, Schedulable(getMotherBoard().getScheduler())
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{
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	getMotherBoard().getMSXEventDistributor().registerEventListener(*this);
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}
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SG1000Pause::~SG1000Pause()
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{
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	getMotherBoard().getMSXEventDistributor().unregisterEventListener(*this);
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}
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void SG1000Pause::signalMSXEvent(const Event& event, EmuTime time) noexcept
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{
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	visit(overloaded{
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		[&](const KeyDownEvent& keyEvent) {
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			if (keyEvent.getKeyCode() == SDLK_F5) {
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				setSyncPoint(time);
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			}
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		},
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		[](const EventBase&) { /*ignore*/ }
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	}, event);
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}
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void SG1000Pause::executeUntil(EmuTime /*time*/)
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{
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	// We raise and then immediately lower the NMI request. This still triggers
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	// an interrupt, since our CPU core remembers the edge.
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	MSXCPU& cpu = getMotherBoard().getCPU();
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	cpu.raiseNMI();
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	cpu.lowerNMI();
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}
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template<typename Archive>
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void SG1000Pause::serialize(Archive& ar, unsigned /*version*/)
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{
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	ar.template serializeBase<MSXDevice>(*this);
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}
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INSTANTIATE_SERIALIZE_METHODS(SG1000Pause);
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REGISTER_MSXDEVICE(SG1000Pause, "SG1000Pause");
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} // namespace openmsx