def decode_assembly(tokens: List[str], labels: Dict[str, int]):
destination_register = _parse_register(tokens[1])
_assert_left_arrow(tokens[2])
source_register = _parse_register(tokens[3])
number = int(tokens[4])
return AddRegisterAndNumber(number, source_register,
destination_register)
def decode_assembly(tokens: List[str], labels: Dict[str, int]):
destination_register = _parse_register(tokens[1])
_assert_left_arrow(tokens[2])
register_a = _parse_register(tokens[3])
register_b = _parse_register(tokens[4])
return Sub(register_a, register_b, destination_register)
def decode_assembly(tokens: List[str], labels: Dict[str, int]):
instruction_index = _parse_jump_destination(tokens[1], labels)
_assert_left_arrow(tokens[2])
register_a = _parse_register(tokens[3])
register_b = _parse_register(tokens[4])
return JumpIfGreaterThan(register_a, register_b, instruction_index)
def decode_assembly(tokens: List[str], labels: Dict[str, int]):
register = _parse_register(tokens[1])
return PrintRegister(register)
def decode_assembly(tokens: List[str], labels: Dict[str, int]):
register = _parse_register(tokens[1])
_assert_left_arrow(tokens[2])
value = int(tokens[3])
return Put(value, register)
def decode_assembly(tokens: List[str], labels: Dict[str, int]):
register = _parse_register(tokens[1])
_assert_left_arrow(tokens[2])
address = _parse_memory_address(tokens[3])
return Load(register, address)
def decode_assembly(tokens: List[str], labels: Dict[str, int]):
source_register = _parse_register(tokens[1])
_assert_right_arrow(tokens[2])
address = _parse_memory_address(tokens[3])
return Store(source_register, address)