#ifndef INTCODE_INTERPRETER_HPP_
#define INTCODE_INTERPRETER_HPP_

#include "Machine.hpp"

namespace intcode {

struct Input {
ValueType &pos;
};

struct Output {
ValueType val;
};

struct Halt {};

auto Step(Machine & m) -> std::variant<Input, Output, Halt>;

struct BadInstruction : public std::runtime_error {
  explicit BadInstruction(char const* what);
};

} // namespace

#endif