pn sequence generator

说明：  该源代码包是AHB总线到Wishbone总线的交接器，包括以下4个部分：RTL源代码，测试平台，软件测试程序，说明文档。(This source package is the AHB bus to Wishbone bus bridge(wrapper).It has the following 4 parts: RTL codes, testbench, software simulating files, help documents.)

用Verilog描述了一款简单逻辑芯片74HC595的功能该芯片功能为：带输出锁存的8位移位寄存器(use the verilog to describe a simple chip 74HC595 with 8-Bit Serial-In, Parallel-Out Shift Reg and High-Current 3-State Outputs Reg)

说明：  一个8位RiSC单片机的VHDL代码， 具有很好的参考价值。(an eight RiSC SCM VHDL code, is a good reference value.)

学习Xilinx公司开发软件ISE的基础资料，从最基础到复杂逻辑设计。-Learning Xilinx software ISE developed the basis of information from the most basic to complex logic design.

跑马灯-是移位寄存器 有6个灯，无延时entity-Bomadeng-shift register is a six lights, without delay entity

串并转换程序，由串行输出转换为4位的并行输出-String and the conversion process, from the serial output is converted to 4-bit parallel output

不同方法实现的CPU系统。同样支持加减乘，逻辑/算术移位，与或非等建议指令。(Different methods to achieve CPU system. Also supports, subtraction, multiplication, logic/arithmetic shift, and the like or recommend instruction.)

cvery high compatibles for quartus

bch 编码和译码，用硬件语言vhdl实现(bch edcode and decoder)

VHDL operators basics