MSXMultiMemDevice.hh

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#ifndef MSXMULTIMEMDEVICE_HH
#define MSXMULTIMEMDEVICE_HH
 
#include "MSXMultiDevice.hh"
#include <vector>
 
namespace openmsx {
 
class MSXMultiMemDevice final : public MSXMultiDevice
{
public:
        explicit MSXMultiMemDevice(const HardwareConfig& hwConf);
        ~MSXMultiMemDevice() override;
 
        [[nodiscard]] bool canAdd(unsigned base, unsigned size);
        void add(MSXDevice& device, unsigned base, unsigned size);
        void remove(MSXDevice& device, unsigned base, unsigned size);
        [[nodiscard]] bool empty() const { return ranges.size() == 1; }
        [[nodiscard]] std::vector<MSXDevice*> getDevices() const;
 
        // MSXDevice
        [[nodiscard]] const std::string& getName() const override;
        void getNameList(TclObject& result) const override;
        [[nodiscard]] byte readMem(word address, EmuTime::param time) override;
        [[nodiscard]] byte peekMem(word address, EmuTime::param time) const override;
        void writeMem(word address, byte value, EmuTime::param time) override;
        [[nodiscard]] const byte* getReadCacheLine(word start) const override;
        [[nodiscard]] byte* getWriteCacheLine(word start) override;
 
private:
        struct Range {
                Range(unsigned base_, unsigned size_, MSXDevice& device_);
                [[nodiscard]] constexpr bool operator==(const Range&) const = default;
 
                unsigned base;
                unsigned size;
                MSXDevice* device;
        };
 
        [[nodiscard]] const Range& searchRange(unsigned address) const;
        [[nodiscard]] MSXDevice* searchDevice(unsigned address) const;
 
        std::vector<Range> ranges; // ordered (sentinel at the back)
};
 
} // namespace openmsx
 
#endif