MSXPrinterPort.hh

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#ifndef MSXPRINTERPORT_HH
#define MSXPRINTERPORT_HH
 
#include "MSXDevice.hh"
#include "Connector.hh"
#include "SimpleDebuggable.hh"
#include <cstdint>
 
namespace openmsx {
 
class PrinterPortDevice;
 
class MSXPrinterPort final : public MSXDevice, public Connector
{
public:
        explicit MSXPrinterPort(const DeviceConfig& config);
 
        // MSXDevice
        void reset(EmuTime::param time) override;
        [[nodiscard]] uint8_t readIO(uint16_t port, EmuTime::param time) override;
        [[nodiscard]] uint8_t peekIO(uint16_t port, EmuTime::param time) const override;
        void writeIO(uint16_t port, uint8_t value, EmuTime::param time) override;
 
        // Connector
        [[nodiscard]] std::string_view getDescription() const override;
        [[nodiscard]] std::string_view getClass() const override;
        void plug(Pluggable& dev, EmuTime::param time) override;
 
        template<typename Archive>
        void serialize(Archive& ar, unsigned version);
 
private:
        [[nodiscard]] PrinterPortDevice& getPluggedPrintDev() const;
        void setStrobe(bool newStrobe, EmuTime::param time);
        void writeData(uint8_t newData, EmuTime::param time);
 
private:
        struct Debuggable final : SimpleDebuggable {
                Debuggable(MSXMotherBoard& motherBoard, const std::string& name);
                [[nodiscard]] uint8_t read(unsigned address) override;
                void write(unsigned address, uint8_t value) override;
        } debuggable;
 
        bool strobe = false; // != true
        uint8_t data = 255;  // != 0
        const uint8_t writePortMask;
        const uint8_t readPortMask;
        const uint8_t unusedBits;
};
 
} // namespace openmsx
 
#endif