autodecrement

When the memory is accessed,the unit can execute some micro-operation which is optimized for memory access such as autoincrement and autodecrement in parallel and also support circular queue.

提出一种新型结构内存控制单元,此单元在完成访存作同时,执多种为访存优化微作,如自增和自作,且实现对循环队列支持。