vgbc/memory/bus.h

#pragma once

#include <vector>
#include <optional>

#include <memory/mem_device.h>

class Bus : public Mem_device {
private:
  struct MapEntry {
    u16 start;
    u16 end;
    Mem_device *dev;
  };

  std::optional<MapEntry> find_entry(u16 addr);

public:
  Bus();

  void map_device(u16 start, u16 end, Mem_device* dev);

  virtual void write8(u16 addr, u8 data);
  virtual u8 read8(u16 addr);

  virtual void write16(u16 addr, u16 data);
  virtual u16 read16(u16 addr);

private:
  std::vector<MapEntry> map;
};