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◆ main openmsx / src / fdc / TalentTDC600.cc
2.1 KiB · C++ · last changed chore(): initial commit 1 month ago source blame history raw
e8555c89 Andy McCall 1 
// For some documentation see:
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//   https://www.msx.org/wiki/Talent_TDC-600
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//   https://msxmakers.design.blog/proyectos/proyecto-tdc-600/tdc-600-como-funciona/
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#include "TalentTDC600.hh"
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#include "serialize.hh"
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namespace openmsx {
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TalentTDC600::TalentTDC600(DeviceConfig& config)
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	: MSXFDC(config)
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	, controller(getScheduler(), drives, getCliComm(), getCurrentTime())
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{
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	reset(getCurrentTime());
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}
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void TalentTDC600::reset(EmuTime time)
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{
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	controller.reset(time);
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}
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byte TalentTDC600::readMem(uint16_t address, EmuTime time)
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{
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	if (0x4000 <= address && address < 0x8000) {
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		return MSXFDC::readMem(address, time);
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	}
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	address &= 0x7fff;
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	if (address < 0x1000) {
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		if (address & 1) {
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			return controller.readDataPort(time);
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		} else {
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			return controller.readStatus(time);
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		}
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	}
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	return 0xff;
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}
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byte TalentTDC600::peekMem(uint16_t address, EmuTime time) const
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{
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	if (0x4000 <= address && address < 0x8000) {
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		return MSXFDC::peekMem(address, time);
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	}
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	address &= 0x7fff;
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	if (address < 0x1000) {
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		if (address & 1) {
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			return controller.peekDataPort(time);
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		} else {
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			return controller.peekStatus();
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		}
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	}
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	return 0xff;
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}
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const byte* TalentTDC600::getReadCacheLine(uint16_t start) const
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{
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	if (0x4000 <= start && start < 0x8000) {
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		return MSXFDC::getReadCacheLine(start);
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	}
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	start &= 0x7fff;
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	if (start < 0x1000) {
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		return nullptr;
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	}
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	return unmappedRead.data();
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}
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void TalentTDC600::writeMem(uint16_t address, byte value, EmuTime time)
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{
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	address &= 0x7fff;
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	if (address < 0x1000) {
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		if (address & 1) {
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			controller.writeDataPort(value, time);
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		}
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	} else if (address < 0x2000) {
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		controller.writeControlReg0(value, time);
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	}
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}
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byte* TalentTDC600::getWriteCacheLine(uint16_t address)
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{
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	address &= 0x7fff;
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	if (address < 0x2000) {
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		return nullptr;
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	}
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	return unmappedWrite.data();
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}
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template<typename Archive>
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void TalentTDC600::serialize(Archive& ar, unsigned /*version*/)
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{
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	ar.template serializeBase<MSXFDC>(*this);
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	ar.serialize("TC8566AF", controller);
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}
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INSTANTIATE_SERIALIZE_METHODS(TalentTDC600);
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REGISTER_MSXDEVICE(TalentTDC600, "TalentTDC600");
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} // namespace openmsx