Code_

https://www3.nd.edu/~dthain/courses/cse20211/fall2013/wavfile/
^^ create a wave library from scratch to learn about wave file format


https://www.youtube.com/watch?v=LpQCEwk2U9w  z80 asm tutorials

http://www.chibiakumas.com/z80/Gameboy.php z80 for gameboy


https://jonathanwhiting.com/tutorial/collision/


https://www.youtube.com/watch?v=44tO977slsU  	sdl2 tutorials C++
https://www.youtube.com/watch?v=yFLa3ln16w0     C SDL

https://eldred.fr/gb-asm-tutorial/introduction.html gb asm tutorial resources

https://github.com/CodingTrain/website/tree/master/CodingChallenges (huge repository of code examples for js)

ASM for nes: http://nintendoage.com/forum/messageview.cfm?catid=22&threadid=7155