MSXHiResTimer.hh

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#ifndef MSXHIRESTIMER_HH
#define MSXHIRESTIMER_HH
 
#include "MSXDevice.hh"
#include "Clock.hh"
 
namespace openmsx {
 
class MSXHiResTimer final : public MSXDevice
{
public:
        explicit MSXHiResTimer(const DeviceConfig& config);
 
        void reset(EmuTime::param time) override;
 
        void writeIO(word port, byte value, EmuTime::param time) override;
        [[nodiscard]] byte readIO(word port, EmuTime::param time) override;
        [[nodiscard]] byte peekIO(word port, EmuTime::param time) const override;
 
        template<typename Archive>
        void serialize(Archive& ar, unsigned version);
 
private:
        Clock<3579545> reference; // last time the counter was reset
        unsigned latchedValue;    // last latched timer value
};
 
} // namespace openmsx
 
#endif