docs: def program_word(self, offset, word):
  		"""
  		.. _program_word:
  
  		Write the word ``word`` to the memory at offset ``offset``.
  		Used to write the boot code.
  
  		Might raise AddressError_, if the  offset exceeds the address space.
  
  		"""
  		if(offset >= self.size):
  			raise AddressError("Offset({}) not in address space({})".format(offset, self.size))
  		self.repr_[offset].setvalue(word)