Re: Instruction counts

On Fri, 16 Aug 2024 5:23:30 +0000, Anton Ertl wrote:

mitchalsup@aol.com (MitchAlsup1) writes:

And RISC-V ends up with over 448 instructions

>
How do you count this?  Looking at chapter 19 of
https://riscv.org/wp-content/uploads/2017/05/riscv-spec-v2.2.pdf, I
count for RV64G:

https://en.wikipedia.org/wiki/RISC-V

>
 47 RV32I
 15 RV64I additional instructions
  8 RV32M
  5 RV64M additional instructions
 11 RV32A
 11 RV64A additional instructions
 26 RV32F
  4 RV64F additional instructions
 26 RV32D
  6 RV64D additional instructions

   43     B
   40     C
  187     V
   43     Zk
   15     H

---------------------------------
159 RV64G

  492

>

whereas My 66000 has but 65.

>
There are also One-instruction set computer designs
<https://en.wikipedia.org/wiki/One-instruction_set_computer>, and by
that metric they are the best, no?

Everything should be as simple as possible, but no simpler. A.E.