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[OS Develop] Linux内存管理模拟器 DL : 0: Linux下使用c语言实现的内存管理模拟器假设有台计算机物理内存大小为4MB,每个内存页大小为4k。采用分页机制，使用二级页表，第一级为页目录，共有1024项，每个页目录项指向一个页表，每个页表项指向一个实际的物理页面，每个页表共有1024个页表项。假设页目录和页表不占用内存空间。系统中还有一个交换设备，采用分块管理机制，每块大小为4K,共1024个。有一系列内存访问指令，系统根据内存访问指令的内存虚地址访问内存。如果页目录项为空，则分配一个页表，并将相关值存入页目录项，如果页表项为空，则请求分配一个内存页，如果没有空闲内存，则使用页面置换算法换出一个内存页到交换设备上。如果页表项表明内存页在交换设备上，则先请求一个物理内存页，然后从交换设备上读入内存内容，释放交换设备上的磁盘块。-use Linux c language memory management simulator assumptions computers to the physical memory size 4 MB, each memory page size to 4k. Pagination mechanism, the use of two-page questionnaire, the first level of Contents page, a total of 1,024. each page directory entry point to a page table, each page table at an actual item of the physical pages, each page table pages of a total of 1,024 items table. Assuming page catalog and page table off memory space. There is also a system to exchange equipment, a sub-block management mechanism, each 4K block size, a total of 1,024. A series of memory access instructions, the system memory access instructions under the virtual memory address access memory. If the page directory entry is empty, one-page questionnaire distribution, and related value depo
Date : 2008-10-13 Size : 4.48kb User : 罗鹏魁
[OS Develop] Linux内存管理模拟器 DL : 0: Linux下使用c语言实现的内存管理模拟器假设有台计算机物理内存大小为4MB,每个内存页大小为4k。采用分页机制，使用二级页表，第一级为页目录，共有1024项，每个页目录项指向一个页表，每个页表项指向一个实际的物理页面，每个页表共有1024个页表项。假设页目录和页表不占用内存空间。系统中还有一个交换设备，采用分块管理机制，每块大小为4K,共1024个。有一系列内存访问指令，系统根据内存访问指令的内存虚地址访问内存。如果页目录项为空，则分配一个页表，并将相关值存入页目录项，如果页表项为空，则请求分配一个内存页，如果没有空闲内存，则使用页面置换算法换出一个内存页到交换设备上。如果页表项表明内存页在交换设备上，则先请求一个物理内存页，然后从交换设备上读入内存内容，释放交换设备上的磁盘块。-use Linux c language memory management simulator assumptions computers to the physical memory size 4 MB, each memory page size to 4k. Pagination mechanism, the use of two-page questionnaire, the first level of Contents page, a total of 1,024. each page directory entry point to a page table, each page table at an actual item of the physical pages, each page table pages of a total of 1,024 items table. Assuming page catalog and page table off memory space. There is also a system to exchange equipment, a sub-block management mechanism, each 4K block size, a total of 1,024. A series of memory access instructions, the system memory access instructions under the virtual memory address access memory. If the page directory entry is empty, one-page questionnaire distribution, and related value depo
Date : 2025-12-22 Size : 4kb User : 罗鹏魁
[OS Develop] AutoRefresh DL : 0: 基于vusual c++的可以获取网页中的星号密码-Based on vusual c++ Can access web pages asterisk password
Date : 2025-12-22 Size : 25kb User : 李乐
[OS Develop] OS DL : 0: 在C++ Builder环境下，获取操作系统的产品序列号和产品名称。-In the C++ Builder environment, access to operating system product serial number and product name.
Date : 2025-12-22 Size : 250kb User : xul
[OS Develop] userkernelspace DL : 0: A user-space device driver can do many of the things that kernel drivers can t, such as perform a long-running computation, block while waiting for an event, or read files from the file system. Unlike kernel drivers, a user-space device driver can use other device drivers--that is, access the network, talk to a serial port, get interactive input from the user, pop up GUI windows, or read from disks. User-space drivers implemented using FUSD can be much easier to debug it is impossible for them to crash the machine, are easily traceable using tools such as gdb, and can be killed and restarted without rebooting even if they become corrupted. FUSD drivers don t have to be in C--Perl, Python, or any other language that knows how to read from and write to a file descriptor can work with FUSD. User-space drivers can be swapped out, whereas kernel drivers lock physical memory.-A user-space device driver can do many of the things that kernel drivers can t, such as perform a long-running computation, block while waiting for an event, or read files from the file system. Unlike kernel drivers, a user-space device driver can use other device drivers--that is, access the network, talk to a serial port, get interactive input from the user, pop up GUI windows, or read from disks. User-space drivers implemented using FUSD can be much easier to debug it is impossible for them to crash the machine, are easily traceable using tools such as gdb, and can be killed and restarted without rebooting even if they become corrupted. FUSD drivers don t have to be in C--Perl, Python, or any other language that knows how to read from and write to a file descriptor can work with FUSD. User-space drivers can be swapped out, whereas kernel drivers lock physical memory.
Date : 2025-12-22 Size : 1kb User : harish
[OS Develop] OperatingSystemMemoryManagement DL : 0: (1) 本实验要求使用C语言编程模拟一个拥有若干个虚页的进程在给定的若干个实页中运行、并在缺页中断发生时分别使用FIFO和LRU算法进行页面置换的情形。 (2) 虚页的个数可以事先给定（例如10个），对这些虚页访问的页地址流（其长度可以事先给定，例如20次虚页访问）可以由程序随机产生，也可以事先保存在文件中。 (3) 要求程序运行时屏幕能显示出置换过程中的状态信息并输出访问结束时的页面命中率。 -(1) This experiment requires the use of C language programming simulation of a virtual page number of the process in a given number of pages is running, and when the page fault occurred in, respectively, the use of FIFO and LRU page replacement algorithm of the situation. (2) the number of virtual pages can be given in advance (for example, 10), access to these virtual page address of the page flow (the length can be given in advance, for example, access to 20 virtual pages) can be randomly generated by the procedure can also be pre-stored in the file. (3) the requirements to run when the screen shows the process of replacement of the state information and the output end of the visit of the page hit rate.
Date : 2025-12-22 Size : 46kb User : 时间
[OS Develop] chap01 DL : 0: 如果您还没有注册，请先注册。源码要求为至少5个C或Java源码或其他好源码或编程学习资料，质量越高得到的下载个数越多(一般上传5个，可以下载200个)。请不要重复上传同一源码，站长审核合格后才能开通帐号。如果不想上传源码，可以成为【VIP会员】获得帐号如果其他会员下载一次您上传的源码，您的可用下载数就会增加1次。更多说明请参看[ -If you have not registered, please register. Source requirements for at least 5 C or Java source code, or other good source, or programmed learning materials, quality, the higher the number the more to be downloaded (usually upload 5, you can download 200). Please do not repeat the upload the same source, after passing the examination owners in order to open accounts. If you do not want to upload source code, you can become a member】【VIP access to accounts if the other members to download once you upload the source code, you will increase the number of available downloads 1. More Help see [
Date : 2025-12-22 Size : 2kb User : himluo
[OS Develop] yemianzhuanhuansuanfa DL : 0: 使用C语言编程模拟一个拥有若干个虚页的进程在给定的若干个实页中运行、并在缺页中断发生时分别使用FIFO和LRU算法进行页面置换的情形。其中虚页的个数可以事先给定（例如10个），对这些虚页访问的页地址流（其长度可以事先给定，例如20次虚页访问）可以由程序随机产生，也可以事先保存在文件中。要求程序运行时屏幕能显示出置换过程中的状态信息并输出访问结束时的页面命中率。程序应允许通过为该进程分配不同的实页数，来比较两种置换算法的稳定性。-Simulated using the C programming language has a number of virtual pages of the process in a given number of real pages to run, and the page fault occurs, respectively, the use of FIFO and LRU algorithm for page replacement situation. The number of virtual pages which can be given in advance (for example, 10), access to these virtual pages page address stream (whose length can be given in advance, for example, 20 virtual pages to access) can be randomly generated by the program can also be saved in advance in the document. Require the program is running the screen can show a displacement in the process of status information and the output end of the visit of the page hit rate. Procedures should be allowed through the process of distribution of the different real number of pages to compare the two kinds of replacement algorithm stability.
Date : 2025-12-22 Size : 1kb User : fujiao
[OS Develop] DiskFilter DL : 0: 此驱动默认还原C盘，缓冲文件放D盘（根据inf文件配置）。此代码为课程设计而写，只实现了最基本的功能，很多细节问题并未考虑。另外，对读写请求未进行过滤，还原系统盘时，Win7下测试，系统启动后会显示 “正常进入Windows”等选项，系统在关机时应该做了记录日志，被拦截后出现此提示。-This drive to restore the C drive by default, cache files, put the D disk (inf file configuration). This code for curriculum design, write, implement only the most basic functions, does not take a lot of the details. In addition, the read and write requests are not filtered, to restore a system disk, Win7 under test, after the system startup " normal access to the Windows" options, system shutdown should do the logging, and were intercepted after this prompt.
Date : 2025-12-22 Size : 9kb User : 高书勤
[OS Develop] cPPbuilder-jsjm DL : 0: c++builder程序说明了如何存取计算机名称-The procedure describes c++builder how to access the computer names
Date : 2025-12-22 Size : 27kb User : wyh
[OS Develop] FIFO DL : 0: c语言编写的FIFO页面淘汰算法，对页面访问序列进行处理，显示出换页的过程，并求出缺页率。-c language FIFO page replacement algorithm for page access sequence is processed, showing the paging process and seek vacancy rates page.
Date : 2025-12-22 Size : 1kb User : 较傻的瓜
[OS Develop] 64 DL : 0: 获取操作系统的启动模式，C++Builder精选编程学习源码，很好的学习资料。-Access to the operating system start-up mode, C++Builder featured programming learning source, a very good learning materials.
Date : 2025-12-22 Size : 2.34mb User : 刘豪枫
[OS Develop] SHUJUKU DL : 0: 实现C#与ACCESS的连接，可以对ACCESS中的数据修改。在软件界面中。-Realize the connection between C# and ACCESS, you can modify the data in the ACCESS. The software interface.
Date : 2025-12-22 Size : 2kb User : 李先