YMF278B.hh

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#ifndef YMF278B_HH
#define YMF278B_HH
 
#include "YMF262.hh"
#include "YMF278.hh"
 
#include "serialize.hh"
 
namespace openmsx {
 
// This combines the FM-part (YMF262) and the Wave-part (YMF278) into a single chip.
class YMF278B
{
public:
        YMF278B(const std::string& name, size_t ramSize, const DeviceConfig& config,
                YMF278::SetupMemPtrFunc setupMemPtrs, EmuTime::param time);
 
        void powerUp(EmuTime::param time);
        void reset(EmuTime::param time);
        [[nodiscard]] byte readIO(word port, EmuTime::param time);
        [[nodiscard]] byte peekIO(word port, EmuTime::param time) const;
        void writeIO(word port, byte value, EmuTime::param time);
        void setupMemoryPointers();
 
        void serialize_bw_compat(XmlInputArchive& ar, unsigned version, EmuTime::param time);
 
        template<typename Archive>
        void serialize(Archive& ar, unsigned version);
 
private:
        [[nodiscard]] bool getNew2() const;
        [[nodiscard]] byte readYMF278Status(EmuTime::param time) const;
 
private:
        YMF262 ymf262;
        YMF278 ymf278;
 
        EmuTime ymf278LoadTime;
        EmuTime ymf278BusyTime;
 
        int opl3latch = 0;
        byte opl4latch = 0;
};
 
} // namespace openmsx
 
#endif