Came here to mention Beagle Bros. In particular, for this:
> Other than AppleSoft BASIC (which was written by Microsoft! For Apple!!), which is burned into a ROM chip on the Apple II, there's also some sort of built-in assembler that you can access by typing this into the BASIC prompt:
CALL-151
>
I believe this is where I'll be able to do some of the more Commodore 64-like peeking and poking directly at memory. I have a feeling there's a lot of exploring (and fun) to be done here. I need to read up more on this.Try the "Beagle Bros Peeks and Pokes Supplement":
https://apple2online.com/web_documents/Beagle%20Bros%20Peeks...
There were collections of cheat sheets, you want the Peeks and Pokes one:
https://blog.codinghorror.com/i-heart-cheatsheets/
Also multiple delightful "catalogs" and tips books:
https://apple2online.com/web_documents/Beagle%20Bros%20Catal...
Unfortunately, I can never find the big compendium they produced, vaguely recalled as a brown legal sized paperback with their logo on the front and chock full of everything.
This is available and good tho:
Assembly Lines
"... designed for students of all ages: the nostalgic programmer enjoying the retro revolution, the newcomer interested in learning low-level assembly coding, or the embedded systems developer using the latest 65C02 chips...
https://smile.amazon.com/Assembly-Lines-Complete-Roger-Wagne...
- - -
EDIT: I FOUND THE BIG TIP BOOK!!!!
https://archive.org/details/Beagle_Bros-The_Big_Tip_Book_OCR...
It's 250 pages, and previously couldn't find it because Beagle Bros wasn't in the name. Brown w/ the logo tho, heh.