Domestic CPU architecture unified hardships

Domestic CPUs have not seen improvement for many years. Recently, they released rumors that will unify the domestic CPU architecture. According to relevant sources, as early as March of this year, the Ministry of Industry and Information Technology had convened related companies and academic institutions and held a conference called "China's National Instruction Set Architecture Plan." The purpose of the meeting was to discuss the creation of a unified instruction set architecture for domestic CPUs, the Unified CPU Architecture Standard (ISA).

In an interview with Nandu reporters, the director of the China Semiconductor Industry Association’s Information Exchange Department Li Ke stated that “CPU is the most central part of the entire chip, and it is also the best expression of intellectual property rights. Although domestic CPU research and development has achieved certain results, it has not formed. As a result of the joint effort, it was too early to start and there was no harmonization of structural standards. It was definitely not conducive to the overall planning of resources, and it was impossible to develop the domestic market and compete with foreign companies."

It is very difficult to construct a unified architecture. At least five kinds of instruction set architectures are being considered as the basis of the national unified instruction set architecture, including the IBM Pb architecture developed by IBM and the SP ARC architecture developed by SUN. ARM architecture, DEC company developed A lpha architecture, M IPS architecture.

Regarding whether it is possible to redevelop a new instruction set architecture, Li Wei, director of the information exchange department of the China Semiconductor Industry Association, believes that architecture is not a product and is a standard, and it is very difficult to build from scratch. And Gu Wenjun, chief analyst of iSuppli Semiconductor, also said, “I think it is unlikely to start from scratch.” According to Gu Wenjun, the MIPS architecture in the five instruction set architectures is very likely to win because of its low licensing costs and Domestic industrialization has also done a good job.

Ever heated "Godburn"?

The Godson that has stirred up a lot of people has gradually faded out of sight. The main reason is that in July 2005, an independent semiconductor analysis organization In-Stat issued an independent analysis report that the Godson processor architecture and the United States M IPS approximation of 95%, Godson II The processor is very similar to the product introduced by MIPS 10 years ago, which makes it unable to extricate itself from the morass of “plagiarism”.

Since the Intel (microblogging) X86 architecture is not open to the outside world, domestic CPUs have adopted other architectures. For example, Godson adopts the American MIPS architecture; domestic high-performance computer Shenwei Blu-ray C PU adopts the A lpha architecture developed by DEC; in the field of mobile chips, domestic manufacturers almost all chose the ARM architecture.

In the past ten years, the country has focused on nuclear, high, and basic projects and has been providing financial support on domestic CPUs. The purpose is to have China's own chips and to get rid of the situation of paying patent fees to foreign companies. At present, domestic CPU basically loses the right to speak in the field of PC and mobile Internet. This status quo may trigger a plan to build a unified architecture for domestic CPUs.

As early as June 2009, Godson purchased the patents for the M IPS32 and M IPS64 architectures from MIPS, and based on this, developed the Godson CPU.

Li Wei stressed that these five kinds of structures have their own advantages and disadvantages, and the final results are difficult to predict.