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this post was submitted on 09 Jun 2025
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ARM is an older Reduced Instruction Set Computing out of Berkeley too. There are not a lot of differences here. x86 could even be better. American companies are mostly run by incompetent misers that extract value through exploitation instead of innovation on the edge and future. Intel has crashed and burned because it failed to keep pace with competition. Like much of the newer x86 stuff is RISC-like wrappers on CISC instructions under the hood, to loosely quote others at places like Linux Plumbers conference talks.
ARM costs a fortune in royalties. RISC-V removes those royalties and creates an entire ecosystem for companies to independently sell their own IP blocks instead of places like Intel using this space for manipulative exploitation through vendor lock in. If China invests in RISC-V, it will antiquate the entire West within 5-10 years time, similar to what they did with electric vehicles and western privateer pirate capitalist incompetence.
I think it's actually the opposite. The actual execution units tend to be more RISC-like but the "public" interfaces are CISC to allow backwards compatibility. Otherwise, they would have to publish new developer docs for every microcode update or generational change.
Not necessarily a bad strategy but, definitely results in greater complexity over time to translate between the "external" and "internal" architecture and also results in challenged in really tuning the interfacing between hardware and software because of the abstraction layer.