摘要:基于VHDL的数字系统设计具有设计技术齐全、方法灵活、支持广泛等优点,同时也是EDA技术的重要组成部分.文章用VHDL语言设计了左移法和进位节省法实现的两种组合乘法器,通过功能仿真,对两种乘法器的性能进行了比较,从而得知后者的传输延迟时间小,即速度较快.通过设计实例,介绍了利用VHDL语言进行数字系统设计的方法.关键词:VHDL语言 左移法 进位节省法Abstract: Digital system design based on VHDL has complete design techniques, methods, the advantages of flexible and wide support, at the same time also is the important component of the EDA technology. The article using VHDL language to design the left shift method and carry save method to realize the com