1, China network/China Development Portal news RISC-V What is riscv chip , that is, the fifth generation reduced instruction set What is riscv chip , riscv is an open source instruction set architecture (ISA) based on Reduced Instruction set computer (RISC) principles, designed in 2010 by a research team at the University of California, Berkeley. Relative to X86 instruction set riscWhat the v chip is is completely closed and the ARM instruction set is expensive to license, the RISC-V instruction set provides software and hardware freedom by supporting a free and open instruction set architecture and architectural extensions.
2, RISC-V, as an open source fifth generation reduced instruction set architecture, with the pioneering work of the University of California, Berkeley in 2010, because of its low cost, modularity and adapt to the needs of the Internet of things, for the independent development of China's chip industry to provide riscv chipThree parts of the world On December 20, What is riscv chip , the 16th "China Core" integrated Circuit Industry Promotion Conference was held in Zhuhai. Ni Guangnan, academician of the Chinese Academy of Engineering, pointed out at the meeting that riscv chip is , the current CPU market is mainly monopolized by x86 and Arm architecture riscv chip is , and China wants to break this situation and achieve autonomy and control. The open source RISC-V architecture willIt is a great opportunity and development direction. In the future of the world's mainstream CPU architecture pattern, RISC-V architecture is expected to reach one in three. 2, in China, RISC-V's open source characteristics have attracted a lot of attention, which not only helps the autonomous control of key chips, but also provides a valuable opportunity to create an independent ecology. Ni Guangnan advocates the development of domestic RISC-V, with China's institutional advantages and huge market, is expected to form a three-legged position with X86 and ARM. China has three advantages in the development of RISC-V: low cost, open source and broad market prospects.
3, chip manufacturing and architecture design are two major problems, the current X86 and ARM architecture is dominated by American enterprises, which brings constraints to China's chip development. Ni Guangnan advocated the use of RISC-V's open source and free characteristics, combined with China's huge chip design enterprises and market demand, but also proposed to be wary of its possible fragmentation problems.
4, Intel led x86 market application scale is currently difficult to be replaced by RISC-V architecture, and RISC-V architecture seems to have a considerable space for development, but in fact there are many problems, RISC-V architecture althoughAttract many first-line manufacturers to adopt, but at this stage to become the mainstream of the market, it seems to need more time to invest in development.
5, Android 10 system runs on the Xuantie 910 chip, and it is very smooth. Xuantie 910 is a processor released in July 2019, and it is also the most advanced RISC-V processor in the industry at present, which can be said to lead Huawei this time, and will also break the shackle of Western chip architecture. Ni Guangnan, an academician of the Chinese Academy of Engineering, said that RISC-V is likely to become one of the world's mainstream chip architectures in the future, and X8ARM is three parts of the world.
The use of ARM architecture must be authorized to What is the riscv chip , the current global design of What is the riscv chip The chip is according to ARM's program What is the riscv chip , the software developed is also designed in accordance with this scheme, so a variety of mobile phones will not have compatibility problems, after many years of accumulation, has formed a complete set of architecture system.
It can be seen that chip integration designers can not use ARM's kernel, but have to use ARM's architecture (instruction set architecture). Because ARM's architecture has become the standard for mobile chips, it has formed a huge ecosystem. To be honest, defining a set of instructions is not complicated, nor does it require too much technical content, the difficulty is that once a mature ecosystem is formed, it is veryHard to shake.
The MIPS architecture was developed and licensed by MIPS Technologies, Inc., and needs to be licensed for use. What would Huawei do without ARM? Although ARM is not an American company, Huawei is also worried that ARM will not be used one day, so Huawei will definitely take precautions and prepare for two things. RISC-V is an open source instruction set architecture that everyone can use. I think Huawei will definitely have a presence in RISC-V.
There are many architectures, the main difference is which company, what instruction set is used, suitable for different application fieldsFor example, arm uses risc instruction set, low loss, high execution efficiency, but not high performance, suitable for embedded devices requiring low power consumption. intel home x86 cisc instruction set, high power consumption, rich functions, suitable for multimedia applications.