YM2413OriginalNukeYKT.hh

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/* This is a wrapper around the original (unmodified) NukeYKT code. This is
 * only useful for debugging because our modified/optimized NukeYKT code should
 * generate identical output.
 */
#ifndef YM2413ORIGINAL_HPP
#define YM2413ORIGINAL_HPP
 
#include "YM2413Core.hh"
#include "opll.hh"
#include <array>
 
namespace openmsx::YM2413OriginalNukeYKT {
 
class YM2413 final : public YM2413Core
{
public:
        YM2413();
        void reset() override;
        void writePort(bool port, uint8_t value, int cycle_offset) override;
        void pokeReg(uint8_t reg, uint8_t value) override;
        [[nodiscard]] uint8_t peekReg(uint8_t reg) const override;
        void generateChannels(std::span<float*, 9 + 5> out, uint32_t n) override;
        [[nodiscard]] float getAmplificationFactor() const override;
        void setSpeed(double speed) override;
 
        template<typename Archive>
        void serialize(Archive& ar, unsigned version);
 
private:
        opll_t opll;
        struct Write {
                uint8_t port = uint8_t(-1);
                uint8_t value;
        };
        std::array<Write, 18> writes;
 
        // only used for peekReg();
        std::array<uint8_t, 64> regs;
        uint8_t latch;
 
        int allowed_offset = 0;
        bool speedUpHack = false;
};
 
} // namespace openmsx::OriginalNuke
 
#endif