Nios II定制指令用户指南:With the Altera Nios II embedded processor, you as the system designer can accelerate time-critical software algorithms by adding custom instructions to the Nios II processor instruction set. Using custom instructions, you can reduce a complex sequence of standard instructions to a single instruction implemented in hardware. You can use this feature for a variety of applications, for example, to optimize software inner loops for digital signal processing (DSP), packet header processing, and computation-intensive applications. The Nios II configuration wizard,part of the Quartus® II software’s SOPC Builder, provides a graphical user interface (GUI) used to add up to 256 custom instructions to the Nios II processor. The custom instruction logic connects directly to the Nios II arithmetic logic unit (ALU) as shown in Figure 1–1.
上传时间: 2013-10-12
上传用户:kang1923
Field Programmable Gate Arrays (FPGAs) are becoming a critical part of every system design. Many vendors offer many different architectures and processes. Which one is right for your design? How do you design one of these so that it works correctly and functions as you expect in your entire system? These are the questions that this paper sets out to answer.
上传时间: 2013-10-22
上传用户:lmq0059
Although there has been a lot of AVL tree libraries available now, nearly all of them are meant to work in the random access memory(RAM). Some of them do provide some mechanism for dumping the whole tree into a file and loading it back to the memory in order to make data in that tree persistent. It serves well when there s just small amount of data. When the tree is somewhat bigger, the dumping/loading process could take a lengthy time and makes your mission-critical program less efficient. How about an AVL tree that can directly use the disk for data storage ? If there s something like that, we won t need to read through the whole tree in order to pick up just a little bit imformation(a node), but read only the sectors that are neccssary for locating a certain node and the sectors in which that node lies. This is my initial motivation for writing a storage-media independent AVL Tree. However, as you step forth, you would find that it not only works fine with disks but also fine with memorys, too.
标签: available libraries Although nearly
上传时间: 2014-01-22
上传用户:zhoujunzhen
英文论文78页,Dynamic Storage Allocation -A Survey and critical Review by PaulR.Wilson at CS Dept.德州奥斯丁 讲动态存储分配,个人感觉不错
上传时间: 2015-11-10
上传用户:z1191176801
The need for accurate monitoring and analysis of sequential data arises in many scientic, industrial and nancial problems. Although the Kalman lter is effective in the linear-Gaussian case, new methods of dealing with sequential data are required with non-standard models. Recently, there has been renewed interest in simulation-based techniques. The basic idea behind these techniques is that the current state of knowledge is encapsulated in a representative sample from the appropriate posterior distribution. As time goes on, the sample evolves and adapts recursively in accordance with newly acquired data. We give a critical review of recent developments, by reference to oil well monitoring, ion channel monitoring and tracking problems, and propose some alternative algorithms that avoid the weaknesses of the current methods.
标签: monitoring sequential industria accurate
上传时间: 2013-12-17
上传用户:familiarsmile
μC/OS-II已经在世界范围内得到广泛使用,包括诸多领域,如手机、路由器、集线器、不间断电源、飞行器、医疗设备及工业控制等。实际上,μC/OS-II已经通过了非常严格的测试,并且得到了美国航空管理局(Federal Aviation Administration)的认证,可以用在飞行器上。这说明μC/OS-II是稳定可靠的,可用于与人性命攸关的安全紧要(safety critical)系统;当然,也可用于非安全紧要系统。
标签: OS-II
上传时间: 2014-01-06
上传用户:himbly
Data mining (DM) is the extraction of hidden predictive information from large databases (DBs). With the automatic discovery of knowledge implicit within DBs, DM uses sophisticated statistical analysis and modeling techniques to uncover patterns and relationships hidden in organizational DBs. Over the last 40 years, the tools and techniques to process structured information have continued to evolve from DBs to data warehousing (DW) to DM. DW applications have become business-critical. DM can extract even more value out of these huge repositories of information.
标签: information extraction predictive databases
上传时间: 2016-03-19
上传用户:啊飒飒大师的
upsd_flash.c These functions are provided to help you develop your initial code. They are optimized for speed rather that size. As a result, you will see very few nested function calls. If speed is not critical, you can use function calls for common tasks (like dat polling after writing a byte to Flash) The penalty is the extra processor time to make the nested calls.
标签: upsd_flash functions are provided
上传时间: 2013-12-23
上传用户:Andy123456
通过 HP-UX 11i,HP 提供了高可用性、高安全性的可管理操作系统,以满足 端对端的 Internet 关键计算的需求。HP-UX 11i 支持 Enterprise、Mission-critical 和 Technical computing 环境。在 PA-RISC 系统和基于 Intel Itanium 的系统 上均可使用 HP-UX 11i。
上传时间: 2014-08-06
上传用户:xiaoyunyun
ears-0.32, linux下有用的语音信号处理工具包,包括音频文件的读取,fft的计算和critical bands的计算
上传时间: 2013-12-12
上传用户:gxrui1991