[furball4paws]

I honestly don't remember, but I bet dull ol'sharp will.

[b_sharp]

Dull?

Hah!

You can go ROR or ROL, your pick.

6502 has 2 registers; x and y
Depending on mode:
Load X: A2, A6, B6, AE, BE
Load Y: A0, A4, B4, AC, BC

(Yes I had to look most of these up)