求科普，Nvidia这个386是怎么回事，授权呢

elisha

List of former IA32 compatible microprocessor vendors:

* Centaur Technology - originally subsidiary of IDT, later acquired by VIA Technologies, still producing compatible low-end devices for Via
* Chromatic Research - mediaprocessor with x86 instruction set compatibility never completed
* Cyrix - acquired by National Semiconductor, later acquired by VIA Technologies, eventually shut down
* Chips and Technologies - left market after failed 386 compatible chip failed to boot the Windows operating system
* Exponential Technology - BiCMOS compatible microprocessor never completed
* IBM - Cyrix licensee and developer of Blue Lightning 486 line of processors, eventually left compatible chip market
* IDT - original funder of Centaur, later sold off that subsidiary to VIA, no longer in compatible market.
* IIT Corp - 486 compatible project never completed
* Harris Corporation - sold rad-hard versions of 8086 and 80286; product line discontinued.
* MemoryLogix - Multi-threaded CPU core and SOC for PCs never completed
* Metaflow Technologies - project never completed
* Montalvo Systems - Asymmetric multiprocessor never completed
* National Semiconductor - low-end 486 (designed in-house) never widely sold; first acquirer of Cyrix, later keeping only low-end IA32 devices targeted for consumer System-on-a-chips, finally selling them to AMD
* NEC - sold early Intel architecture compatibles such as NEC V20 and NEC V30; product line transitioned to NEC internal architecture
* NexGen - bought by AMD to help develop the successful K6 device
* Rise Technology - after 5 years of working on the slow mP6 chip (released in 1998), the company closed a year later
* Texas Instruments and SGS-Thomson -licensees of Cyrix designs, eventually left compatible chip market
* Transmeta - transitioned to an intellectual property company in 2005.
* United Microelectronics Corporation and Meridian Semiconductor - got out of market after slow 486 compatible missed market window
* ULSI System Technology - never completed x86 SOC; company shut down after one of their employees was convicted for stealing Intel Floating-point x87 design documents

More info over the wiki:

x86-processors for both regular PCs and embedded designs:

* Intel
* AMD
* VIA
* Transmeta (discontinued its x86 line)
* Rise Technology (acquired by SiS)
* IDT (Centaur Technology x86 division acquired by VIA)
* National Semiconductor (sold the x86 PC designs to VIA and later the x86 embedded designs to AMD)
* Cyrix (acquired by National Semiconductor)
* NexGen (acquired by AMD)
* Chips and Technologies (acquired by Intel)
* IBM (discontinued its own x86 line)
* UMC (discontinued its x86 line)
* NEC (discontinued its x86 line)

[edit] x86-processors for embedded designs only:

* Zet IA-32 (Zet is a GPL open source FPGA implementation targeting the Xilinx ML-403)
* ZF Micro (ZFx86 - Cx486DX SoC)
* Nvidia (M6117C - 386SX)
* ALi (x86 products went to Nvidia through the ULi sale)
* SiS (discontinued its Vortex86 line)
* DMP Electronics (Vortex86SX and Vortex86DX, compatible with Intel 486SX and 486DX respectively)
* RDC Semiconducters (R8610 an R8620)

[edit] Manufacturing-only of x86-processors designed by others:

* IBM (manufactures processors for ZF Micro and VIA; discontinued production for NexGen and Transmeta)
* TSMC (manufactures processors for VIA; discontinued production for Transmeta)
* UMC (manufactures processors for Nvidia; discontinued production for Rise, SiS, ALi and ULi)
* Fujitsu (manufactured processors for Transmeta; discontinued x86 production)
* National Semiconductor (manufactured processors for ZF Micro; discontinued x86 production)

[edit] Manufacturing and selling under its own name of x86-processors designed by others:

* IBM (designs by Cyrix; now this line is discontinued)
* SGS-Thomson (designs by Cyrix; discontinued x86 production)
* Texas Instruments (designs by Cyrix; discontinued x86 production)

spinup

ALI--ULI--Nvidia