if opcode in BRANCHING:
    if opcode == "jmp":
        cpu.instruction_pointer = new_location
        cpu.just_jumped = True
    else
        pass

opcode, args = self.fetch()
self.decode_and_execute(opcode, args)
if not self.just_jumped:
    # advance pointer 1 bit to read the next address
    self.instruction_pointer += data_types.Word(1)