SunriseIDE.hh

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#ifndef SUNRISEIDE_HH
#define SUNRISEIDE_HH
 
#include "MSXDevice.hh"
#include "Rom.hh"
#include "RomBlockDebuggable.hh"
#include <memory>
#include <span>
 
namespace openmsx {
 
class IDEDevice;
 
class SunriseIDE final : public MSXDevice
{
public:
        explicit SunriseIDE(const DeviceConfig& config);
        ~SunriseIDE() override;
 
        void powerUp(EmuTime::param time) override;
        void reset(EmuTime::param time) override;
 
        [[nodiscard]] byte readMem(word address, EmuTime::param time) override;
        void writeMem(word address, byte value, EmuTime::param time) override;
        [[nodiscard]] const byte* getReadCacheLine(word start) const override;
 
        template<typename Archive>
        void serialize(Archive& ar, unsigned version);
 
private:
        [[nodiscard]] byte getBank() const;
        void writeControl(byte value);
 
        [[nodiscard]] byte readDataLow(EmuTime::param time);
        [[nodiscard]] byte readDataHigh(EmuTime::param time) const;
        [[nodiscard]] word readData(EmuTime::param time);
        [[nodiscard]] byte readReg(nibble reg, EmuTime::param time);
        void writeDataLow(byte value);
        void writeDataHigh(byte value, EmuTime::param time);
        void writeData(word value, EmuTime::param time);
        void writeReg(nibble reg, byte value, EmuTime::param time);
 
private:
        struct Blocks final : RomBlockDebuggableBase {
                explicit Blocks(SunriseIDE& device);
                [[nodiscard]] byte read(unsigned address) override;
        } romBlockDebug;
 
        Rom rom;
        std::array<std::unique_ptr<IDEDevice>, 2> device;
        std::span<const byte, 0x4000> internalBank;
        byte readLatch;
        byte writeLatch;
        byte selectedDevice;
        byte control;
        bool ideRegsEnabled = false;
        bool softReset;
};
 
} // namespace openmsx
 
#endif