With ARM you basically pay a license for the architecture, or for the processor designs. Once you have the license you are good to go.
You'll be fine for one generation of the ARM architecture. After that, you'll be vulnerable to Trump's whims. I'm not sure whether the Nikkei article mentioned it, but the Arm China deal includes the rights to all future ARM generations. That was probably the reason for the deal.
(In case anybody's confused, the deal was only for ARM's China subsidiary, not for all of ARM.)
Another architecture which is gaining some traction on the data center is RISC-V. But the barrier to entry for someone like ZTE is a lot higher. You need to make your own chip design, probably software support too, only the ISA is readily available.
RISC-V is a lot like ARM, even to having two distinct instruction sets!
Imagination Technologies is also a UK company.
Oops, not American. Serves me right for using my memory only.
In fact, they are mostly threading water, they lost Apple as a customer and they don't have any other large clients that I know of. MIPS is mostly dead too. AFAIK they are now owned by a Chinese venture fund.
For what Imagination Technologies did to China (ruined some plans), I hope they go under. I seem to remember that they paid quite a bit for the MIPS rights ($100 million or thereabouts). May they lose it all.
Also, given most smartphones use ARM, using any other architecture is a real problem. Especially with Android.
Agree.
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