MSXTurboRPause.hh

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/*
 * This class implements the 2 Turbo-R specific LEDS:
 *
 * Bit 0 of IO-port 0xA7 turns the PAUSE led ON (1) or OFF (0)
 * Bit 7                           TURBO
 * TODO merge doc below
 */
#ifndef TURBORPAUSE_HH
#define TURBORPAUSE_HH
 
#include "MSXDevice.hh"
#include "BooleanSetting.hh"
#include "Observer.hh"
 
namespace openmsx {
 
class MSXTurboRPause final : public MSXDevice, private Observer<Setting>
{
public:
        explicit MSXTurboRPause(const DeviceConfig& config);
        ~MSXTurboRPause() override;
 
        void reset(EmuTime::param time) override;
        void powerDown(EmuTime::param time) override;
 
        [[nodiscard]] byte readIO(word port, EmuTime::param time) override;
        [[nodiscard]] byte peekIO(word port, EmuTime::param time) const override;
        void writeIO(word port, byte value, EmuTime::param time) override;
 
        template<typename Archive>
        void serialize(Archive& ar, unsigned version);
 
private:
        // Observer<Setting>
        void update(const Setting& setting) noexcept override;
 
        void updatePause();
 
private:
        BooleanSetting pauseSetting;
        byte status = 255;
        bool pauseLed = false;
        bool turboLed = false;
        bool hwPause = false;
};
 
} // namespace openmsx
 
#endif