#pragma once

#include <cstdint>
#include <memory>
#include <array>

struct Instruction;
class Bus;

struct CPUContext {
  Instruction& m_Instruction;
  uint64_t& m_InstructionPointer;
  uint64_t& m_Flags;
  uint64_t* m_Registers;
  std::shared_ptr<Bus> m_Bus;

  CPUContext(Instruction& i, uint64_t& ip, uint64_t& flags, uint64_t* reg, std::shared_ptr<Bus>& bus);
  ~CPUContext();
};

enum class ModRMState : uint8_t
{
  INVALID = 0,
  LR = 1,
  LR_DISP8 = 2,
  LR_DISP32 = 3,
  R = 4
};

struct ModRM{
  ModRMState m_State;
  uint8_t m_Reg;
  uint8_t m_Rm;
};

typedef void (*ExecutorCase)(CPUContext&);

const std::array<ExecutorCase, 255>& GetExecutorTable();