For embedded developers, understanding assembly language and core registers is the foundation for a deeper understanding of the kernel. I never expected there would be so much content when I started writing, and I hope to convey many valuable insights. I would like to especially thank Teacher Wei Dongshan for his videos, which are absolutely … Read more
1. Address Space 1.1 Accessing Registers in ARM How do you access registers in ARM? Just like accessing memory: how to access a register? Use a pointer: int a; unsigned int *p = &a; // p equals "address of a" *p = val; // Writing to this address means writing to a val = *p; … Read more
Case Study Share Optical Detector of SEM for Z-axis Height Measurement Above Semiconductor Wafer No.1 01 Problem to be Solved in This Case 1 A semiconductor OEM (Original Equipment Manufacturer) manufacturer wants to add a new feature to their existing SEM (Scanning Electron Microscope) system to enhance productivity. They need a fast and reliable method … Read more
Click to Follow ▲ Aiqi SEM Knowledge | Experience | Information | Resources Four Major Sections From SEM to Integrated Internet Marketing Author: Wang Wei, Aiqi Academy Special Expert Senior Marketing Consultant at Baidu, Corporate Training Lecturer, Instructor at Tencent Classroom Original submission, unauthorized reproduction prohibited Submissions can be sent to: [email protected] All along, when … Read more
Debugging C programs used to confuse me. However, when I was writing my operating system, I had many bugs to debug. I was fortunate to use the QEMU emulator, which allowed me to attach a debugger to my operating system. This debugger is gdb. — Julia Evans This article navigation ◈ 1. Set Breakpoints13% ◈ … Read more
Click on the “Zero One Vision” above and select the “Star” public account Resource-rich content delivered promptly Assembly language still forces programmers to think about which registers and memory addresses to use. If you suddenly need an extra number, you might need to change a lot of code. Let’s think about that. 1. Patching “Bugs” … Read more
1. C Language, Assembly Language, Machine Language 1.1 C Language Code The C language is a high-level language, which cannot be directly executed by the computer and needs to be translated into machine language to be recognized and run by the computer. However, machine language consists of binary numbers, and to facilitate reading, we use … Read more
Information security public service announcement, information security knowledge enlightenment. Add WeChat group and reply to the public account: WeChat Group； QQ group: 16004488 You can request for free: Learning Tutorial Writing a computer virus is not just about destruction; it also depends on how widely your virus can spread while avoiding detection, and it must … Read more
Some rankings can remain unchanged for centuries, like the Eight Great Prose Masters of the Tang and Song Dynasties. The names of Han Yu, Liu Zongyuan, Ouyang Xiu, Su Xun, Su Shi, Su Zhe, Zeng Gong, and Wang Anshi will never be replaced. Some rankings are updated annually, like the annual box office rankings of … Read more
An operating system written in assembly language, designed to provide an efficient, stable, and user-friendly operating system experience. This operating system only occupies 1.4MB of space, with the latest update on May 10, 2024. MenuetOS not only provides an intuitive operating interface but also has multiple features, making it a versatile operating system. It supports … Read more