I found myself trying to debug some Z80 assembly routine in order to learn what is it doing, surrounded by register values and notes on random pieces of paper all over the place and thought that there may be a better way :lol:
So I created some nice sheets with columns with register names and space for notes. As a bonus, there's room on the top to write what is that you're working on, and sheet number in case the code you are debugging is large.
I've created one for the 6809 and one for the Z80. 6309 and 6502 may come soon.
You can find them here: https://github.com/robcfg/assembly_debug_sheets
I hope you'll find them useful!