That may be but RISC is supposed to be simple (or if you prefer, reduced) and back then the 6502 had no infrastructure to speak of. 7 years is unquestionably a

That may be but RISC is supposed to be simple (or if you prefer, reduced) and back then the 6502 had no infrastructure to speak of. 7 years is unquestionably a long time and then if you go to the RISC-V spec and look at lucky chapter 13, "B" Standard Extension for Bit Manipulation it says: This chapter is a placeholder for a future standard extension to provide bit manipulation instructions, including instructions to insert, extract, and test bit fields, and for rotations, funnel shifts, and bit and byte permutations. It is cheaper than ARMv8 but that's about it.