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Loongson ()〔(龍芯處理器英文品牌定名Loongson )〕 is a family of general-purpose MIPS64 CPUs developed at the ''Institute of Computing Technology'' (ICT), Chinese Academy of Sciences (CAS) in the People's Republic of China. The chief architect is Professor Hu Weiwu. It was formerly called Godson. Loongson is the result of a public–private partnership. ''BLX IC Design Corporation'' was founded in 2002 by ICT and Jiangsu Zhongyi Group. Based in Beijing, BLX focuses on designing the 64-bit Loongson general-purpose and embedded processors, together with developing software tools and reference platforms. STMicroelectronics fabricates and markets Loongson chips for BLX, which is fabless. ==MIPS patent issues== The current Loongson instruction set is a MIPS64, but the internal microarchitecture is independently developed by ICT. Early implementations of the family lacked four instructions patented by MIPS Technologies to avoid legal issues.〔(China's Microprocessor Dilemma )〕〔http://www.linleygroup.com/newsletters/newsletter_detail.php?num=4264〕 In 2007, a deal was reached by MIPS Technologies and ICT. STMicroelectronics bought a MIPS license for Loongson, and thus the processor can be promoted as ''MIPS-based'' or ''MIPS-compatible'' instead of ''MIPS-like''.〔(MIPS Technologies Licenses MIPS64 Architecture to STMicroelectronics )〕〔(China’s Institute of Computing Technology and STMicroelectronics announce their cooperation on the Loongson processors )〕〔(Godson-3 Emulates x86 )〕 In June 2009, ICT licensed the MIPS32 and MIPS64 architectures directly from ''MIPS Technologies''.〔(China’s Institute of Computing Technology Licenses Industry-Standard MIPS Architectures )〕 In August 2011, Loongson Technology Corp. Ltd. licensed the MIPS32 and MIPS64 architectures from MIPS Technologies, Inc. for continued development of MIPS-based Loongson CPU cores.〔(Loongson Licenses MIPS32® and MIPS64® Architectures for Embedded and Computing Applications )〕〔http://www.bloomberg.com/apps/news?pid=newsarchive&sid=andnpz5dILv0〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Loongson」の詳細全文を読む スポンサード リンク
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