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Foreign PHP technology websites include PHP.net, Stack Overflow, SitePoint, TutsPlus, Laracasts, PHPClasses, PHPDeveloper, PHPMaster, PHPFreaks, CodeIgniter, etc. Detailed introduction: 1. PHP.net, the official PHP website, provides PHP documents, tutorials, reference manuals and other resources; 2. Stack Overflow and other websites.
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The Test command performs a logical AND operation on the two operands and sets the relevant flag bits according to the operation result. Test performs an AND logical operation on two parameters (destination, source) and sets the flag register based on the result. The result itself is not saved.
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Recommended configuration for using GCC for embedded ARM assembly under Linux. One of the commonly used processor architectures in embedded systems is the ARM architecture, and Linux is an operating system widely used in embedded system development. Using GCC for embedded ARM assembly under Linux can facilitate development work. This article will introduce how to configure GCC and provide some code examples. Install the GCC toolchain First, we need to install the GCC toolchain. The GCC tool chain is a collection of GCC compilers for a specific platform.
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Recommended configuration for using GCC for embedded ARM assembly optimization under Linux Introduction: Embedded systems play an important role in modern technology, and the ARM architecture, as one of the most commonly used embedded processor architectures, has been widely used. In embedded development, optimizing the performance of the code is crucial, and using GCC to optimize ARM assembly is a common method. This article will introduce how to configure GCC under Linux for embedded ARM assembly optimization and provide relevant code examples. Configure GCC: Install GC
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Assembly language instructions use "mnemonics" instead of binary. Mnemonics are symbols that are easy for people to remember and can describe instruction functions and instruction operands; assembly language uses mnemonic symbols to write programs, which is more convenient than binary code programming in machine language, and simplifies it to a certain extent. programming process.
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Common configuration methods for using GCC for embedded ARM assembly optimization under Linux Introduction: In embedded systems, ARM architecture processors often need to be efficiently optimized to meet real-time performance and resource constraints. Assembly language is a language that can directly control hardware. For some key algorithms, using assembly can greatly improve performance. This article will introduce common configuration methods for using GCC to optimize embedded ARM assembly in a Linux environment, and give relevant code examples. 1. Write ARM assembly code
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