Which country is Loongson cpu made in?

Loongson CPU: Genuine Domestic According to media reports, the Computer Research Institute of Chinese Academy of Sciences, which provides "Loongson" series of chip products, made a formal statement yesterday on foreign media's alleged infringement of Loongson 2. The chief designer of Loongson series products said nonsense: "I wrote every line of code of Loongson processor." Computing Institute of Chinese Academy of Sciences applied for more than 20 invention patents related to Loongson processor architecture for Loongson 1 and Loongson 2, many of which have been authorized. So far, all the designs of Loongson processors have not infringed the patents of related companies. Godson 2 is the first general-purpose processing chip with completely independent property rights in China, and its performance is equivalent to that of Intel Pentium 3. At present, it has been applied to Haier, Inspur and other enterprise products, which has changed the status quo of China's chip dependence on foreign imports. The successful research and development of Godson 2 has shortened the gap between the domestic chip level and the world mainstream technology to two generations in one fell swoop, and achieved initial application, which is of great significance to China's information security. Godson 2 is a general-purpose CPU, which can be used for desktops and laptops. Its main application targets are Linux desktop PC, security server, network firewall and so on. Its low-power version can also be used for thin clients, such as NC and diskless workstations. Hu also said that in the future, when describing the instruction system of the Loongson II processor, the Computer Institute of the Chinese Academy of Sciences will no longer use ambiguous words such as "MIPS-like" or "MIPS-like", and will clearly indicate that the Loongson processor uses "Loongson instruction system". For the product manual of Loongson 1, the calculator and Loongson Company will gradually correct it. To understand the technical features of "Godson" series products, please refer to official website: /index.htm The following statement was issued by the Institute of Computing Technology of Chinese Academy of Sciences: 1. The intellectual property description of Godson 2 is 1. Computers attach great importance to intellectual property rights. During the design of Loongson 1 and Loongson 2, more than 20 invention patents related to Loongson processor architecture were applied. Some of them have been authorized. 2. According to our search and analysis results, up to now, there is no patent infringement of related companies in all the designs of Loongson processors. MIPS has been properly protecting its intellectual property rights. In the past, American companies had an intellectual property dispute with MIPS because of the instruction problem. But so far, the calculation has not received any notice from MIPS about Loongson's infringement of MIPS intellectual property rights. As far as we know, the most common intellectual property dispute with MIPS is several instructions with misaligned memory access in MIPS instruction system (4 in 32-bit mode and 8 in 64-bit mode). MIPS applied for patents for the implementation methods of these instructions in the United States, Japan, South Korea, Canada and Australia. However, Loongson does not have the problem of infringement on these instructions. (1) Up to now, all godson processors and godson IP sold in the market have not implemented these instructions. (2)MIPS has not applied for patents related to these directives in China, so there is no problem of infringing these directives in the China market. MIPS also owns some other patents, such as media instruction patent and big-end and small-end conversion patent. However, Godson was not used. For example, Loongson 2 realized about 100 media instructions defined by itself, and only realized the data format of small tail segment. Infringement is a serious legal concept, and the court's judgment on infringement needs at least the following four proofs: (1) One party legally owns relevant rights; (2) the other party has violated these rights, and there is generally subjective fault; (3) Causing damage to the obligee; (4) There is a causal relationship between the damage caused and the behavior mentioned in (2). It is extremely irresponsible to infer that Loongson 2 infringes the intellectual property rights of related companies only by guessing that the structure is 95% similar. 3. About Godson's entry into the international market. The first two of the three characteristics of patent refer to the timeliness and regionality of patent. At present, the protection period of invention patents in most countries is 20 years. Moreover, patents are only protected in the country where they are applied. When Godson enters the international market and which country/region it chooses to enter are all related to the legal status of relevant patents in that country/region. If the relevant companies have not applied for relevant patents in the country where Loongson entered, or the patents have expired or become invalid, Loongson's entry into the market in that country will not cause any patent disputes. 4. As a first-class national research institution in the information field, Computing has maintained long-term friendly cooperative relations and contacts with many well-known international and domestic companies in the industry, and MIPS is one of them. Senior leaders of the two sides exchanged visits for many times (including computing director and MIPS CEO). MIPS Company hopes to calculate the above instructions with misplaced access addresses and purchase MIPS Company's authorization for these instructions (that is, MIPS architecture authorization) to achieve full compatibility with MIPS. Obtaining MIPS compatibility authorization has the following advantages: (1) After implementing the above instructions, the existing application software of MIPS computer can run on Loongson CPU, which reduces the workload of software transplantation. (2) Make full use of MIPS-compatible brand advantages. (3) After obtaining the license right of MIPS, we also get the comprehensive technical support of MIPS in design and verification. Computation expresses complete understanding and is in contact with relevant departments to try to purchase MIPS related licenses in an appropriate way. 5. In addition, the computer would like to take this opportunity to make it clear that ambiguous words such as "MIPS-like" or "MIPS-like" will no longer be used when describing the instruction system of Loongson-2 processor in the future, and that Loongson-2 processor will use "Loongson instruction system". At present, the Godson instruction system mainly consists of the following four parts. (1) Some instructions in MIPS III instruction set that do not involve MIPS patents; (2) Loongson 1 or Loongson 2' s own unique general user mode instructions, such as multiply-accumulate instructions (multiply-add instructions are defined in MIPS IV, but Loongson 2 has not adopted them); (3) Some core instructions closely related to the processor structure, such as instructions for cache or TLB operation (these instructions generally change with different structures, even in different processors of MIPS) and instructions for synchronization and communication among multiple cores in Loongson 3 in the future; (4) Godson's unique media instruction. With the development of Loongson processor, the Loongson instruction system will further add new instructions. For the product manual of Loongson 1, the calculator and Loongson Company will gradually correct it. Second, the technical description of Loongson-2 —— About the "architecture" Recently, American In-Stat Company published a paper in the Microprocessor Report, which introduced Loongson-2 in detail. In-Stat's report is mainly based on an academic paper on the structural design of Loongson-2 which was published by Loongson Research Group in the Journal of Computer Science and Technology (No.2, 2005). In-Stat company clearly pointed out in the report that Loongson-2 didn't realize MIPS company's instruction to apply for patent access and storage dislocation. In addition, Loongson 2 realized its own defined media instruction, but did not realize the media instruction defined by MIPS, and applied for a patent. In-Stat company's report pointed out, "Because Loongson 2 only didn't realize some instructions of MIPS company's patent application, the instruction system of Loongson 2 is 95% MIPS-compatible; In addition, the structure of Godson 2 is similar to MIPS R 10000 processor, with four launches. " Therefore, some domestic media said that "the architecture of Loongson II is 95% similar to MIPS R 10000, which may constitute an infringement of MIPS", which is not the conclusion of In-Stat's report, and it is also completely unfounded speculation. From the high-level concept of "architecture" (technical terms of architecture or architecture). At present, more than 95% of all RISC processors are similar. These "architectures" include RISC structure, 64-bit, four-pass, setting of necessary functional components, setting of queues (such as sending queues, re-order buffer, access queues), instruction and data cache, etc. In these conceptual "architectures", MIPS processors, IBM processors, SUN processors, HP processors, DEC processors, etc. Have more than 95% similarity. For example, just because they are all three bedrooms and one living room, and both rooms face south, we can't think that the two houses infringe on each other. But from the micro-architecture related to implementation, different designers have their own magical powers. So is Godson 2 as a completely independent processor. For example, MIPS R 10000 is a 5-7 stage assembly line, while Loongson 2 is a 9 stage assembly line; The media instruction of MIPS R 10000 is completely different from that of Loongson 2. MIPS R 10000 divides instructions into three groups when issuing instructions: fixed-point instructions, floating-point instructions and memory access instructions, while Godson 2 divides instructions into fixed-point instructions (including memory access) and floating-point instructions when issuing instructions. Godson 2 achieved executable protection against buffer overflow attacks by hackers or viruses, while MIPS R 10000 did not. MIPS R 10000 and Loongson 2 have very different transfer cancellation mechanisms, and so on. It can be said that it is difficult for Godson 2 and MIPS R 10000 to find the same place in the specific implementation of related micro-architecture. This point is also fully expounded in the In-Stat report. In the report of In-stat, some structural parameters of Loongson 2 and MIPS R 10000 are compared, and it is concluded that the processing capacity of Loongson 2 is similar to or even stronger than that of MIPS R 10000. Some media have said that the "architecture" of Loongson 2 is 95% similar to MIPS R 10000, which is groundless and easily leads people to think that China people are unable to design their own processors and need to copy other people's structures. In fact, so far, the processor that achieves the highest performance of (part of) MIPS instruction system is the Loongson being implemented.