-- Booth Multiplier -- This file contains all the entity-architectures for a complete -- k-bit x k-bit Booth multiplier. -- the design makes use of the new shift operators available in the VHDL-93 std -- this design passes the Synplify

为提高乘法运算速度本设计采用Booth算法，Booth编码算法的优点有两个：一是减少了部分积的个数；二是可同时适用于有符号数运算和无符号数运算。