XL & XL+ use slightly more CPU than MK1/2 due to the extra X/Y states and such. It's less than 1% IIRC.
Ah, that's what happens when you rely on a poor memory. I seem to remember in pre XL+ days a post mentioning the XL used slightly more CPU than MK1/2, and thought it was X/Y on the additional blocks.
Usually I'm never wrong, but I could be mistaken...
I thought I was wrong once but I was mistaken.
I thought I was wrong once but I was mistaken.