test bench for alu 6 functions

it s vhdl program for decoder

matlab代码，利用Farrow结构设计分数延时滤波器，滤波器阶数和个数可分别进行设置，利用最大最小准则近似。(Matlab code, using Farrow structure design fractional delay filter, filter order and number can be set separately, using the maximum and minimum criterion approximation.)

这是基于verilog hdl的数字时钟源代码，能够实现时分秒的计时，可以手动进行调时与调分。(This is based on the digital clock verilog hdl source code, can be achieved when every minute of the time, you can adjust the time manually adjusting points.)

红绿灯交通灯的设计，通过规定时间红绿灯的转变实现交通灯的控制(Traffic light traffic light design, implementation, control traffic lights traffic light changes by a predetermined time)

说明：  In the data management system a significant role of the Data link layer is to convert the unreliable physical link between reader and tag into a reliable link. Therefore, the RFID system employs the Cyclic Redundancy Check (CRC) as an error detection scheme. In addition for reader to communicate with the multiple tags, an anti-collision technique is required. The technique is to coordinate the communication between the reader and the tags. The common deterministic anti-collision techniques are based on the Tree algorithm such as the Binary Tree and the Query Tree algorithms.

本设计是基于FPGA的一个FIR低通滤波器设计，要求使用Verilog语言编写滤波器模块，通过编译和综合，并通过Matlab和modelsim联合仿真验证设计结果。(This design is a FIR low-pass filter design based on FPGA, use Verilog to program filter module, and joint simulation by Matlab and modelsim to validate the design results.)

SOC Verfication Methodology and Techniques

用Hspice实现一个三输入异或门，并分析其功耗和延时。(A three input XOR gate is implemented by Hspice, and its power consumption and delay are analyzed.)

这个项目修改后的展位华莱士算法给出了所需的方法来实现一种高速度和高性能并行计算的复数模拟乘法器。设计的结构使用基数 4 修改 Booth 算法和华莱士树。这两种技术来加速增殖过程，作为他们的能力，以减少局部产品代到 11/2 和压缩部分产品期限按比例为 3 ∶ 2。尽管如此，携带保存加法器 （CSA） 是用来增强系统的加法过程的速度。设计了系统有效地使用 VHDL 代码为 8 x 8 位签署数字和成功的模拟. Booth 型乘法器可以减少迭代步长，以执行乘法比较常规步骤操作次数。Booth 算法 "扫描" 乘法器操作数，并跳转到链的这种算法可以减少产生相对于常规的乘法算法，每个位的乘数乘以与被乘数和部分产品对齐和加在一起的结果所需的加法次数。更有趣的是加法次数是数据依赖

74ls165电路源代码verilog,已经验证。(74ls165 verilog)