Techniques to Improve the Efficiency of C Language Code In the process of learning and writing in C language, optimizing code to improve execution efficiency is a topic that every programmer should focus on. While the choice of algorithm has the greatest impact on performance, the author believes there are many nuances that can further … Read more
Course 3: Stage 2 – Core Instructions and Programming Topic：Function Calls and Stack Operations, ARMv8 Calling Conventions, Bare-Metal Programming Practice 3.1 Basics of Function Calls Core Concepts： BL Instruction： <span>BL label</span>：Jump to<span>label</span> to execute, while saving the return address (the address of the next instruction) to<span>LR</span> (X30). After the function call, return using<span>RET</span> (<span>RET</span> is … Read more
Understanding the function call process is beneficial for implementing the AUTOSAR layered architecture. 1 Memory Distribution of the Program In embedded systems, what is the internal mechanism when a function is called, and what steps are executed? As shown in Figure 1, first, let’s look at the memory distribution of a program when it is … Read more