docs: def exec(self, operand1, operand2):
  		"""
  		Uses two operands and performs a function on their content.::
  
  			operand1 = function(operand1, operand2)
  		"""
  		in1 = self.register_interface.read(operand1)
  		in2 = self.register_interface.read(operand2)
  		out = self.function(in1, in2)
  		self.register_interface.write(operand2, out)