code: def move_to_next_address(self, size_of_current):
          
          self._size_of_current_register_address = size_of_current
          self._current_address = self.next_address()
          self.mark_address(self._current_address, size_of_current)
docs: Moves the register's current address to the next available.
          size_of_current specifies how many bytes/words to skip