算术逻辑运算单元，它根据输入的8种不同操作码分别实现相应的加、与、异或、跳转等基本操作运算。利用这几种基本运算可以实现很多种其他运算以及逻辑判断等操作-Arithmetic logic operation unit, which under the Importation of the eight kinds of different opcode, respectively, to achieve a corresponding increase, and, XOR, Jump basic c