# pylint:disable=W0622
import program
from error import *

CMDs = ["ldr", "str", 'ldrb']


def ldr(self, operand: program.Operand):
    if operand[0].isRegister() and operand[1].isMemory():
        operand[0].set(operand[1].get())
    else:
        raise BadOperand()


def str(self, operand):
    if operand[0].isRegister() and operand[1].isMemory():
        operand[1].set(operand[0].get())
    else:
        raise BadOperand()