Comment by gruez
It's basically the eternal debate of RISC vs CISC (x86). RISC proponents claim RISC is better because it's simpler to decode. CISC proponents retort that CISC means code can be more compact, which helps with cache hits.
It's basically the eternal debate of RISC vs CISC (x86). RISC proponents claim RISC is better because it's simpler to decode. CISC proponents retort that CISC means code can be more compact, which helps with cache hits.
In the real world there is no CISC or RISC anymore. RISC is always extended to some new feature and suddenly becomes more complex. Meanwhile CISC is just a decoder over a RISC processor. Either way you get the best of both worlds: simple hardware (the RISC internals and CSIC instructions that do what you need.
Don't get too carried away in the above, x86 is still a lot more complex than ARM or RISC-V. However the complexity is only a tiny part of a CPU and so it doesn't matter.