MSXAudio.hh

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#ifndef MSXAUDIO_HH
#define MSXAUDIO_HH
 
#include "MSXDevice.hh"
#include "Y8950.hh"
#include <memory>
#include <string>
 
namespace openmsx {
 
class Y8950Periphery;
class DACSound8U;
 
class MSXAudio final : public MSXDevice
{
public:
        explicit MSXAudio(const DeviceConfig& config);
        ~MSXAudio() override;
 
        [[nodiscard]] Y8950Periphery& createPeriphery(const std::string& soundDeviceName);
 
        void powerUp(EmuTime::param time) override;
        void reset(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;
        [[nodiscard]] byte readMem(word address, EmuTime::param time) override;
        [[nodiscard]] byte peekMem(word address, EmuTime::param time) const override;
        void writeMem(word address, byte value, EmuTime::param time) override;
        [[nodiscard]] const byte* getReadCacheLine(word start) const override;
        [[nodiscard]] byte* getWriteCacheLine(word start) override;
 
        template<typename Archive>
        void serialize(Archive& ar, unsigned version);
 
private:
        void enableDAC(bool enable, EmuTime::param time);
 
private:
        std::unique_ptr<Y8950Periphery> periphery; // polymorphic
        Y8950 y8950;
        std::unique_ptr<DACSound8U> dac; // can be nullptr
        byte registerLatch;
        byte dacValue = 0x80;
        bool dacEnabled = false;
 
        friend class MusicModulePeriphery;
        friend class PanasonicAudioPeriphery;
        friend class ToshibaAudioPeriphery;
};
 
} // namespace openmsx
 
#endif