部分译码方式桶式移位器及其VHDL实现

VHDL Implementation of Barrel Shifter based on Partial Decoding Mode

在现代高速微处理芯片中,为了使各种位数的移位操作都能在单个周期完成,普遍采用桶式移位器。采用部分译码方式的桶式移位器,以其诸多优点,在芯片中得到广泛应用。文章介绍了其设计原理及其语言实现。

In modern high speed microprocessor chips,barrel shifter is widely used to guarantee the accomplishment of shift operation of various kinds of bit number in one cycle.Partial decoding mode barrel shifter is adopted much more for its mer-its.This paper presents its design principle and VHDL imple-mention.