Microarchitecture

Introduction to ARM Processors: Modern Processor Features and Cortex-A9 Microarchitecture Analysis

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Introduction to ARM Processors: Modern Processor Features and Cortex-A9 Microarchitecture Analysis

Previous Articles: Introduction to ARM Processors 1 – Overview Introduction This article is the second part of the introduction series on ARM processors, mainly introducing some basic technologies and concepts of modern superscalar out-of-order processors. We will take the Cortex-A9 processor as an example to see which technologies are used to enhance performance, laying the … Read more

Understanding ARM TrustZone Architecture for Enhanced Security

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Understanding ARM TrustZone Architecture for Enhanced Security

Official Block Diagram 1. ARMv7 2. ARMv8 (1) aarch32 (2) aarch64 (3) Summary of arch32 and aarch64 (4) Understanding with Code 3. Cortex-A9 architecture 1. ARMv7 2. ARMv8 (1) aarch32 (2) aarch64 (3) Summary of arch32 and aarch64 Understanding aarch32 and aarch64 under armv7: If both secureos and monitor are 64-bit, secureos runs at el1, … Read more

Understanding ARM Architecture and Processors

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Understanding ARM Architecture and Processors

2. ARM Architecture and Processors ARM does not manufacture silicon devices. Instead, ARM creates microprocessor designs that are licensed to semiconductor companies and original equipment manufacturers (OEMs), who integrate them into system-on-chip (SoC) devices. To ensure compatibility between different implementations, ARM defines architectural specifications that dictate how compliant products should behave. Processors implementing the ARM … Read more