SC3000PPI.hh

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#ifndef SC3000PPI_HH
#define SC3000PPI_HH
 
#include "MSXDevice.hh"
#include "I8255Interface.hh"
#include "I8255.hh"
#include "Keyboard.hh"
#include <array>
 
namespace openmsx {
 
class CassettePortInterface;
class JoystickPortIf;
 
class SC3000PPI final : public MSXDevice, public I8255Interface
{
public:
        explicit SC3000PPI(const DeviceConfig& config);
 
        void reset(EmuTime::param time) override;
        byte readIO(word port, EmuTime::param time) override;
        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:
        // I8255Interface
        byte readA(EmuTime::param time) override;
        byte readB(EmuTime::param time) override;
        nibble readC0(EmuTime::param time) override;
        nibble readC1(EmuTime::param time) override;
        byte peekA(EmuTime::param time) const override;
        byte peekB(EmuTime::param time) const override;
        nibble peekC0(EmuTime::param time) const override;
        nibble peekC1(EmuTime::param time) const override;
        void writeA(byte value, EmuTime::param time) override;
        void writeB(byte value, EmuTime::param time) override;
        void writeC0(nibble value, EmuTime::param time) override;
        void writeC1(nibble value, EmuTime::param time) override;
 
        CassettePortInterface& cassettePort;
        I8255 i8255;
        Keyboard keyboard;
        std::array<JoystickPortIf*, 2> ports;
        nibble prevBits = 15;
        nibble selectedRow = 0;
};
 
} // namespace openmsx
 
#endif