Programmer Group

It's really convenient to use markdown to write documents and support mathematical formulas!!!Step 1: modify the preference settings and check the inline formula optionfile -> Preferences -> Markdown -> Inline formulaAfter setting according to the following figure, we can happily enter the formula in Typora~1, Enter Greek lettersEnter: ...

Server program specification Linux server programs generally run as background processes (daemons). It does not control the terminal, so it will not accidentally receive user input. The parent process of the daemon is usually the init process (PID 1).A professional log system is required for the debugging and maintenance of the server. L ...

The three assemblers that are executed before the Linux system starts are mentioned above. The head.s program actually enters the Linux source code written in C by jumping out of the main function stack and into the main function execution. Previous article can be jumped here Linux Source Parsing - From Startup to main Function Based on the Li ...

2, Paging memory management catalogue 2.1 purpose 2.2 contents 2.3 experimental tips 2.4 data structure 2.5 algorithm design and flow chart   2.6 operation screenshot 2.7 summary 2.8 code 2.1 purpose Master the basic principle of paging management, and reflect the process of memory space allocation, recovery and address convers ...

        Mengxin records his learning experience in some days. preface:          The teacher sent me the corrected experimental report (. pdf) at noon. As a teacher assistant, I need to return each report to the corresponding students and register my grades. There are 5 + reports and ...

1. Title: there is an empty plate on the table that can hold five fruits. The father kept putting apples or oranges on the plate, the son kept taking oranges out of the plate to enjoy, and the daughter kept taking apples out of the plate to enjoy. It is stipulated that three people cannot use the plate at the same time. Try semaphore to realize ...

Experiment 1 command interpreter Experimental content Write a micro command interpreter minishell.c in C language, which can receive and interpret the following commands: (1) dir lists the current directory (2) cop file1 file2 copy files (3) era filename delete file (4) disp string display string (5) end end, exit requirement: (1) Check the v ...

Compiling Linux 0.11 kernel 1, Experimental environment As usual, the experiment is carried out on the Vmware virtual machine. The experimental environment is Ubuntu 16.04. At the same time, this content is also based on the relevant contents of the course experiment of operating system of Harbin University of technology. hit-oslab 2, D ...

Experimental purpose Gradually master the following process: How the source code is compiled into an executable file. How the computer loads the operating system after compiling into an executable file. After loading, where to run the operating system. How is the output information of the operating system output. Experimental content F ...

External interrupt External hardware interrupt For the interrupt signal from the outside of the processor, the external hardware interrupt is introduced into the processor through two signal lines, and the signal lines of 8086 processor are NMI and INTR Non masked interrupt (NMI) is an interrupt that will not be blocked or masked. intel pr ...