说明：  居于硬件描述语言的简单CPU设计，能够实现比较简单的数据传送处理功能，虽然功能简单，但只要搞懂了其中原理，对于大的系统就能够有依葫芦画瓢的强大效果。
(Living in a simple CPU hardware description language design, to achieve relatively simple data transfer processing functions, although the functionality is simple, but as long as they get to know one theory for the larger systems can have a powerful effect 依葫芦画瓢.)