MSXModem.hh

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#ifndef MSXMODEM_HH
#define MSXMODEM_HH
 
#include "MSXDevice.hh"
#include "Rom.hh"
#include "SRAM.hh"
#include <array>
 
// PLEASE NOTE!
//
// This device is work in progress. It's just a guess based on some reverse
// engineering of the ROM by Zeilemaker54. It even contains some debug prints :)
//
// Perhaps this can be used for hardware like the modem in the Sony HB-T600,
// HBI-1200 and maybe even Mitsubishi ML-TS2(H).
//
// The actual modem part isn't implemented at all!
 
namespace openmsx {
 
class MSXModem final : public MSXDevice
{
public:
        explicit MSXModem(const DeviceConfig& config);
 
        void reset(EmuTime::param time) override;
        void writeMem(word address, 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;
        [[nodiscard]] byte* getWriteCacheLine(word address) override;
        [[nodiscard]] const byte* getReadCacheLine(word address) const override;
 
        template<typename Archive>
        void serialize(Archive& ar, unsigned version);
 
private:
        Rom rom;
        SRAM sram;
        uint8_t bank;
        byte selectedNCUreg;
};
 
} // namespace openmsx
 
#endif