Originally posted by elatllat
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Weekend Discussion: How Concerned Are You If Your CPU Is Completely Open?
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Originally posted by mppix View PostWe live in a world where digital privacy is virtually non-existent, devices are back-doored en masse
https://en.wikipedia.org/wiki/Clipper_chip
The 1990's called... it wants its issue back.
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He is absolutely right.
I've been watching the "I want free and open hardware" community for over 20 years now.
(I actually started investigating free and open CPU designs 20 years ago).
Nothing, absolutely nothing has come out that was worth an iota.
OpenRISC, Sparc, Power, etc, etc. All free ISA's. Dead. And yeah. Power is dead to me aswell.
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Originally posted by rene View Posthardware and CPUs should be open for the many reasons we prefer open source, fixing bugs, security, making changes, innovation you name it. And yes PowerPC is dead, it was never that great, and the more modern AND OPEN RISCV will dominate the near and mid term future ;-) And in the wake of all the Intel & co CPU bugs, who would not want a truly open, verifiably and fixable CPU design?
Also, how is OpenPOWER less open than RISC-V in any meaningful way?
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Originally posted by birdie View PostAn open CPU is a myth unless you personally control everything: design, masks, production, distribution - at every point someone may interfere and make your design contain the features you didn't quite think about ... um, backdoors.
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Originally posted by Space Heater View PostAlso, how is OpenPOWER less open than RISC-V in any meaningful way?
Also. A free ISA implementation like the Sifive cores are not guaranteed to have less backdoors than your average x86 implementation.
ISA != Implementation which seems to be lost on a lot of people.
It's like saying that arbitrary cryptography implementation is safe because the theory behind the math looks sound.
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