The 6502 was most definitely not microcoded! It's way simple.
On the Vectrex, also a 6809 machine, the fastest vector draw routines use the stack to thread draw commands, not quite the same thing but those sixteen bit stack pointers sure are useful.
Doh! You're correct - and I should have known that since the 6502 design was based on a greatly cost-reduced Motorola 6800, the 6809's dad. Somehow I bit-flipped between the 6502/Z80 (not microcoded) and the 8088 (microcoded). Thanks for the correction.
Re: the Vectrex, I never knew that but it makes sense since chasing the beam requires feeding a massive queue of vector pairs.