operations.py 文件源码

def exec(self, proc: Processor):
        self.proc = proc
        self.args = map(self.expand, self.o_args)  # load register values
        val = reduce(self.operator, self.args)  # apply operator
        if operator is addc or operator is subc:
            val += int(self.proc.external.carry)
        proc.memory.set_register(self.register, val)  # set result
        if operator is operator.and_ or operator is operator.or_ or operator is operator.xor:
            self.proc.set_carry(False)

        # increment pc
        self.proc.manager.next()