Op dinsdag 13 november 2018 15:34:29 CET schreef Liam Proven:
On 13/11/2018 12:51, John Paul Adrian Glaubitz wrote:
If I remember correctly, the 6502 was actually licensed by a lot of companies like NEC, Sharp and so on which is why it was so widely adopted.
I checked -- you're right. But licensed, not copied -- as was, for instance, the Chinese Loongson and Godson chips from the MIPS core, just omitting 4 patent-infringing instructions, although they did officially license the instruction set later on.
To which vendors? There are only two vendors on this planets which have an x86 license, those are AMD and VIA, the latter having sublicensed to some Chinese companies.
Today. Via owns both Cyrix and Centaur/IDT.
Harris made x86 chips up to the 80286: https://en.wikipedia.org/wiki/Intel_80286#History_and_performance
NEC's clones were unofficial: https://en.wikipedia.org/wiki/NEC_V20
This article: https://en.wikipedia.org/wiki/List_of_x86_manufacturers
Told me about Zhaoxin, of whom I'd not previously heard. https://en.wikipedia.org/wiki/Zhaoxin
Intel has actually a very tight grip on their IP unlike other vendors of CPU designs like ARM, Sun and IBM.
AFAIK nobody makes ARM chips without a licence...?
Actually, there was an antitrust lawsuit from the EU against Intel for exactly that reason. I don't know what the current status of that lawsuit is though.
Intel won it.
https://www.ft.com/content/f460ef98-930f-11e7-bdfa-eda243196c2c
https://www.reuters.com/article/us-eu-intel-antitrust/landmark-intel-judgmen t-critical-for-other-eu-antitrust-cases-idUSKCN1BF1ZS
And it wasn't about control of x86, it was illegal sales practices, such as giving customers rebates if they dealt exclusively with Intel.
To be fair, I lost the overview over the amount of vulnerabilities there.
Me too. :-(
There are definitely much cleaner and better CPU designs than what Intel produces.
Oh my, yes! Please guys, this is the factory ML ....
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