针对BTB部件的功能需要，采用了随机替换算法以及两位饱和计数器算法，并给出电路实现，其电路结构简单，占用面积小。
According to the desire of BTB's function, the paper realizes a pseudo-LRU replacement algorithm and two-bit bimodal algorithm. The circuit has advantages in its simple structure, and small space.
输出数经74164输出的8位并行数据送至8段LED，实现测量数据的显示，实现可视的计数功能。
The output number delivers to 8 section of LED after 74164 outputs8 bit parallel data, the realization survey data demonstration, realizes visibly count...
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