Suggestions For Learning PPC Assembly?

Alright, since I rarely ever do any x64 / x86 application programming and I hack video games a lot, I'd figured I could get better at reverse engineering video games by learning PPC. It's very difficult just reading it, but I should be able to pick it up pretty easily.

Does anyone have any suggestions as to how I should start learning PPC assembly and what different types (if any) of PPC assembly there is? I looked on Google and shit for PPC assembly books and there isn't much on them and most of it's older than I am, prolly because the language is so old. If you could give me any suggestions, I'd really appreciate it. Thanks!

I had the same troubles but you should practise a bit use this assembly interpreter:
http://www.bullywiihacks.com/t3674-

Note:
It's x86 assembly BUT it's still pretty similar. If you're good at this, you'll be good at PPC and vice versa.

PPC examples:
https://www.cs.uaf.edu/2011/fall/cs301/lecture/11_21_PowerPC.html

PPC reference:
http://pds.twi.tudelft.nl/vakken/in101/labcourse/instruction-set/

And so on. Just googling works. I didn't even read any of these tutorials since it's not quite the same for game hacking I figured and I'm not serious about learning it. I can still write 99% of the codes I want to do. :s