用VC++做的一个分数的加减运算，简单方便，易于VC的学习。

H323协议培训材料，希望对H323的初学者更带来一点帮助-training materials, H323 hope to bring more beginners 1:00! !

关于FPGA流水线设计的论文 This work investigates the use of very deep pipelines for implementing circuits in FPGAs, where each pipeline stage is limited to a single FPGA logic element (LE). The architecture and VHDL design of a parameterized integer array multiplier is presented and also an IEEE 754 compliant 32-bit floating-point multiplier. We show how to write VHDL cells that implement such approach, and how the array multiplier architecture was adapted. Synthesis and simulation were performed for Altera Apex20KE devices, although the VHDL code should be portable to other devices. For this family, a 16 bit integer multiplier achieves a frequency of 266MHz, while the floating point unit reaches 235MHz, performing 235 MFLOPS in an FPGA. Additional cells are inserted to synchronize data, what imposes significant area penalties. This and other considerations to apply the technique in real designs are also addressed.-FPGA pipelined designs on paper This work invest

BOOTLOAD-VIVI分析，首先介绍了BOOTLOADER，然后详细分析了VIVI启动流程。-BOOTLOAD-VIVI analysis, first introduced BOOTLOADER, and then a detailed analysis of flow VIVI start.

scheme, r5rs标准，scheme的国际标准文档 中文，不知道有没有人喜欢英文的-scheme, r5rs standards, international standards scheme documentation in Chinese, do not know whether there are people like the English

高质量C＋＋编程指南，很经典的-high-quality C++ Programming Guide, the classic

有关windows的接口函数总结，希望对大家有用-On the windows of the interface function summary, in the hope that useful to everybody

Ruby不完全读书指南内含7本关于ruby或ruby on rails的资料-Ruby incomplete study guide contains seven on ruby or ruby on rails of the information

pwm of photonic crysal material simulation

希望大家VC的编程能力有所提高，有错误的地方希望大家批评指正-VC

windows API 大全,是从事Windows应用程序开发所必备的说明文档-Daquan, is engaged in the development of Windows applications by the required documentation