RISC-V is also known as “the Linux of CPUs.” For some, this title feels like a legacy and an innovation at the same time, especially if you are a staunch believer in open source. However, I am a true pragmatist, and the excessive marketing of RISC-V has made me lose interest in the term. It … Read more
This article is excerpted from “2022 Research Framework for Domestic Server CPUs“. In the post-Moore’s Law era, the performance benefits brought by the improvement of process technology are already very limited. The Dennard Scaling law constraints have led to a sharp increase in chip power consumption, and the cost of transistors has risen instead of … Read more
Author: Huang Yefeng Original from EET Electronic Engineering Magazine Processors based on the RISC-V architecture are increasingly appearing in everyday electronic products, becoming more commonplace: not only have some typical MCU manufacturers begun to embrace RISC-V, such as the previously interviewed Tsinghua Unigroup, but also companies like GigaDevice have launched RISC-V product lines; Moreover, this … Read more
The Cortex A77 architecture, newly launched by Arm in May 2019, utilizes TSMC’s 7nm process with a peak frequency of 3GHz, achieving a 20% performance improvement. A previous article introduced the architecture of the strongest X86 processor, ZEN, which can be found here. This article analyzes the strongest Arm processor, A77, based on the same … Read more
Source: Chip Theory Abstract: Previous articles have mentioned that there are many classification methods for chips, with varieties as numerous as the stars in the night sky, making it impossible to enumerate them all. This article narrows the focus to high-end general-purpose chips, specifically CPUs. We will find that there are also many types of … Read more
The RISC-V processor has garnered widespread attention due to its flexibility and scalability, but without efficient verification strategies, erroneous design implementations could hinder the continued promotion of RISC-V. Before RISC-V emerged, processor verification had almost become a dragon-slaying skill for most semiconductor companies. Expertise was concentrated in a few commercial companies that provided processors or … Read more
Introduction He is the director of the Dedicated Processor Research Institute at Beijing Institute of Technology, a lifetime chair professor at Linköping University in Sweden, and a senior member of the IEEE; he previously served as the chief engineer in the integrated circuit R&D department at Ericsson and successfully founded two dedicated processor companies in … Read more
Source: MikesICroom Author: Mike Liu The Cortex A77 architecture launched by ARM in May this year uses TSMC’s 7nm process and has a peak frequency of 3GHz, with a performance improvement of 20%. In a previous article, the architecture of the strongest X86 processor, ZEN, was introduced. See more details.This article analyzes ARM’s strongest processor … Read more
The ARM architecture is one of the most popular processor architectures in the world today, with billions of ARM-based devices shipped each year. There are three architectural configurations: A, R, and M. Typically, a terminal device utilizes multiple ARM processors, and these processors implement different architectural profiles. For example, the following diagram shows what … Read more
Overview of ARMv8 Architecture The ARMv8 architecture includes 32-bit and 64-bit execution states, introducing the ability to execute with 64-bit wide registers while providing backward compatibility mechanisms to allow existing ARMv7 software to run. • AArch64: The 64-bit execution state in ARMv8. • AArch32: The 32-bit execution state in ARMv8, which is nearly identical … Read more