非常明智，可以确保在字符串指令进行逻辑上的方向寄存器的自动调整。
Very sensible - ensures that the auto-adjustment of registers in string instructions proceeds in the logical UP direction.
利用四位双向移位寄存器等电子元件可制作能直观显示直流电流方向的模拟演示仪。
Four-bit bidirectional shift register was used to produce the device for demonstrating the direction of direct current.
试验结果表明，与现有其他设计相比，该结构节省水平方向的6抽头fir滤波器，减少了寄存器阵列的大小并且节省了数据读取带宽。
The simulation results show that the proposed design saves horizontal 6-tap FIR filters, reduces the size of register array and saves memory bandwidth.
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