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hn_submit • today at 8:21 AM • 5 replies • view on HN

Is this something more than a flag-waiving exercise? Who's actually manufacturing and selling these "European" CPUs?

I just purchased a boatload of Chinese RISC-V development boards for about $2.30 a piece. Can't wait to start playing with them.

"RISC(-V) architecture is going to change everything."

[1]: https://www.aliexpress.com/item/1005011967676963.html


Replies

sigmoid10 • today at 9:00 AM

Compared to x86, which is wholly owned by an American duopoly and needs licensing to produce legally, boosting RISC-V is a major step towards chip independence for Europe. With the current state of the US it almost seems a necessity. The only downside here is that it didn't happen sooner.

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myrmidon • today at 10:18 AM

Such development boards are a completeley different thing compared to RVA23-profile RISC-V CPUs.

This is like comparing an 48MHz ARM-Cortex-M0 with the CPU in your Macbook. Yes both of them are ARM cores, but the small embedded processor has very little RAM/Flash/clockspeed, no memory management unit, no cache, no modern RAM interface.

Not even the instruction set is really the same, because you (typically) won't even have floating point instructions/registers on the small MCUs, much less vector instructions.

The Milk-V Jupiter 2 mentioned in the post is basically a full-fledged Desktop CPU and it's price is not gonna be anywhere close to $2 either...

ErikCorry • today at 1:04 PM

These implement 16-register cut down RISC-V RV32EC_Zmmul instruction set. It's an interesting choice. I wonder if they can run Coremark or Dhrystone so one can get an impression of their performance at 48MHz.

8k RAM, 64k ROM, compressed RISC-V insn set.

Edit: Apparently it's a QingKe RISC-V with about 130 Coremark.

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asdfsa32 • today at 8:37 AM

Who actually builds these manufacturing facilities? Is America just a financial services empire now? Two can play this game.