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[File Operate] ARM-c DL : 0: 　无操作系统支持的嵌入式系统软件,包括系统引导(BOOT) 、驱动程序、动态内存管理、IPO、通信以及应用软件等方面。本文详细介绍了嵌入式平台上用C 语言编写系统软件和应用软件的方法。虽然是针对ARM平台介绍的,但基本经验和算法也适合于其他嵌入式平台的软件设计。-without the support of the operating system embedded system software, including guidance system (BOOT), the driver, dynamic memory management, IPO, communication and application software, and so on. This paper describes a platform embedded C language system software and application software methods. Although the address is on the ARM platform, but the basic algorithm experience and is also suitable for other platforms embedded software design.
Date : 2008-10-13 Size : 209.76kb User : 福东方
[File Operate] fifoyemianzhihuan DL : 0: 通过编写和调试存储管理的模拟程序以加深对存储管理方案的理解。熟悉虚存管理的各种页面淘汰算法。通过编写和调试地址转换过程的模拟程序以加强对地址转换过程的了解-through writing and debugging of storage management simulation program to increase the storage management program understanding. Familiar with virtual memory management algorithm out various pages. Through writing and debugging process of the change of address of the simulation program to strengthen the process of the change of address of understanding
Date : 2008-10-13 Size : 1.65kb User : nicmaters
[File Operate] china DL : 0: 【操作系统】页式虚拟存储管理中地址转换和缺页中断的模拟-Page] [operating system virtual memory management of address translation and page fault simulation
Date : 2026-01-11 Size : 1kb User : 望人
[File Operate] mult-users-mult-dir-file-system DL : 0: 功能： 1．在内存中开辟一个虚拟磁盘空间作为文件存储器，在其上实现一个多用户多目录的文件系统。 2．文件物理结构可采用显式链接或其他方法。 3．磁盘空闲空间的管理可选择位示图或其他方法。如果采用位示图来管理文件存储空间，并采用显式链接分配方式，则可以将位示图合并到FAT中。 4．文件目录结构采用多用户多级目录结构，每个目录项包含文件名、物理地址、长度等信息，还可以通过目录项实现对文件的读和写的保护。目录组织方式可以不使用索引结点的方式，但使用索引结点，则难度系数为1.2。 5．设计一个较实用的用户界面，方便用户使用。要求提供以下相关文件操作：（1）具有login (用户登录) （2）系统初始化（建文件卷、提供登录模块）（3）文件的创建： create （4）文件的打开：open （5）文件的读：read （6）文件的写：write （7）文件关闭：close （8）删除文件：delete （9）创建目录（建立子目录）：mkdir （10）改变当前目录：cd （11）列出文件目录：dir （12）退出：logout -Functions: 1. In memory open up a virtual disk space as a file storage, on its more than a user realize how directory file system. 2. The physical structure can file by explicit links or other methods. 3. Free disk space management can choose a diagrams of or other methods. If using a chart to management and file storage space, and by explicit links distribution methods, it can select a diagrams of merge to FAT. 4. File directory structure using multi-level user directory structure, each directory contains a file name, physical address, length and other information, but also through a catalogue of the file realize read and write protection. Catalogue organization can not use index node way way, but use index node, the difficulty coefficient is 1.2. 5. Design a practical user interface, and user-friendly. Required to provide the following documents operation: (1) have login (user login) (2) system initialization (built file roll, and provide login module) (3) files created: crea
Date : 2026-01-11 Size : 1.34mb User : longer
[File Operate] FastFile_sys DL : 0: 读取与写入文件的三种基本存储方式，一种是普通无缓存存储方式，一种是高速缓存，另一种是异步传输。文件高速缓存被设置在内存中，从而解决CPU与硬盘访问速度差异太大的问题。高速缓存即在读文件时预读，从而加速访问。异步传输改变内存访问的指令顺序，从而提高了代码执行效率。本程序通过对三种文件读写操作的时间对比来对比三种方式在效率上的不同。 -Three basic storage read and write files, one is ordinary no-cache storage methods for a cache, another is asynchronous transmission. The file cache memory is provided in order to address the speed difference between the CPU and disk access much of a problem. When reading a cache file that is read-ahead, thus speeding up access. Asynchronous transfer instruction to change the order of memory accesses, thus improving the efficiency of the code. This program file read and write operations through three times in three different ways to compare the contrast in efficiency.
Date : 2026-01-11 Size : 1.15mb User : 张三
[File Operate] CPPProcessFiles DL : 0: 对于某些特殊应用领域所需要的动辄几十GB、几百GB、乃至几TB的海量存储，再以通常的文件处理方法进行处理显然是行不通的。目前，对于上述这种大文件的操作一般是以内存映射文件的方式来加以处理的，本文下面将针对这种Windows核心编程技术展开讨论。-For some special applications frequently require tens GB, hundreds of GB, TB or even a few mass storage, file processing and then to the usual method of treatment is clearly not feasible. Currently, the operation of the above such large files by way of a general memory-mapped files to be processed, this article will discuss the following address this core Windows programming techniques.
Date : 2026-01-11 Size : 10kb User : huxi
[File Operate] 07936777 DL : 0: 存储管理,存储将指令序列变换成为页地址流设用户内存容量为4页-Store management, it will become a page address instruction sequence transformation flow set user memory capacity of 4 pages
Date : 2026-01-11 Size : 3kb User : Phoeqg