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
Learning programming is essentially learning high-level languages, which are designed for humans to communicate with computers. However, computers do not understand high-level languages; they must be converted into binary code through a compiler to run. Knowing high-level languages does not equate to understanding the actual execution steps of a computer. The only language that computers … Read more
Assembly Language for x86 Architecture In assembly language, a simple “Hello, World!” program can be written like this (assuming we are using x86 architecture assembly language): section .data hello db 'Hello, World!',0 section .text global _start _start: ; write syscall mov eax, 4 mov ebx, 1 mov ecx, hello mov edx, 13 int 0x80 ; … Read more
Recently, I saw a question on a forum, and there was a reply like this: C++ indeed can create all kinds of peculiarities. I don’t know if this is its glory or its sorrow. This reply did not help the original poster’s question at all, as the issue was not about any specific language. So … Read more
Learning programming has become a headache for many. There are those late nights when I look up at the bright moon, wondering when I can fully grasp assembly language and fulfill my dreams. But reality always hits hard…. There are many moments when I feel like smashing my keyboard, but we, the brave, will not … Read more