The Basic Meaning of ‘Arm’ As a noun, the most common meaning of ‘arm’ is “arm; limb”; it can also refer to “weapons; armed forces”; as a verb, it means “to arm; to equip”. Examples of Noun Usage Arm; Limb She held the baby in her arms. (She held the baby in her arms.) Weapons; … Read more
First, let me introduce the software development process in my work. Our company produces a physical product, and the software part of the product is developed and maintained by multiple departments. The code from our team is compiled into static libraries (.a) or dynamic libraries (.so) depending on the product form, and together with libraries … Read more
In assembly language (especially in the x86 architecture), <span>dword ptr </span>is a term used to specify the size of data and the addressing mode for memory operations. 1 dword It stands for “double word,” which refers to 32 bits (4 bytes) of data. In the x86 architecture: 1 word = 16 bits (2 bytes) 1 … Read more
Previous Review Note: The A series includes assembly materials including simulation and source code The T series only includes simulation and programs (C language) The H series includes both programs (C language) and simulations, as well as design reports and video explanations! 1. Previous collections can be viewed by searching “directory” 2. For simulation software, … Read more
As a programmer, what was the first programming language you encountered and learned? According to the “2021-2022 China Developer Survey Report”, the historically significant assembly language is the most disliked programming language among programmers (37%), followed by C++ (17%) and C (16%). As a machine-oriented programming language, assembly language is indeed very precise, but it … Read more
01 Program Structure Optimization 1. Program Writing Structure Although the writing format does not affect the quality of the generated code, certain writing rules should still be followed during actual programming. A clearly written program is beneficial for future maintenance. When writing programs, especially for statements like While, for, do…while, if…else, switch…case, and their nested … Read more
1. Writing the C program ch03_05_01.c /* * This program constructs a structure TestStruct with members of different lengths. * It sums the structure members using both C functions and assembly functions to verify the correctness of the assembly code. * The focus is on the Pad8 member, which does not participate in calculations, but … Read more
Several Questions Before getting to the main topic, let me ask a few questions: What is the English abbreviation that represents the function of instructions in local code? What does segment definition refer to in assembly language programs? In fact, everyone may have different answers; there is no need to strictly adhere to standard answers, … Read more
Introduction First of all, I believe that foundational knowledge in computer science is timeless, while trendy “practical skills” may quickly become obsolete. This is why, during the major selection process in my sophomore year, I chose the Computer Science and Technology major instead of other flashy fields. In my junior and senior years, when studying … Read more
1. Essential Differences: Low-Level Control vs High-Level Abstraction 1.1 Assembly Language: Direct Mapping to Hardware Assembly language is a mnemonic representation of machine instructions, closely coupled with the MCU architecture. Taking the assembly of ARM Cortex-M as an example: ; Add registers R1 and R2, store the result in R0 ADD R0, R1, R2 ; … Read more