Easy 6502 – How to get started writing 6502 assembly language

Ah, this is great. I first learned assembly programming to modify one of my favorite video games, Earthbound. To my surprise, the game was a cult classic, and extensive efforts had been made to develop tools to modify every aspect of the game. As part of that effort, I learned 65816 assembly, a 16-bit descendant of the 6502. The day I modified the code to add a run button, thereby eliminating one of the most annoying aspects of the original…

Thank you for posting this. This reminds me of my favorite book. This is for those who want another good assembly book, I would recommend Assembly Language and Computer Architecture Using C++ and Java[0]. You will learn a lot from this book and not only assembly language. You'll learn about a theoretical computer H1, how to use a simulator, debugger, how a CPU can be built from scratch, how a compiler generates code by using a stack then slowly improving…

I came across this when I was searching for resources to help better understand ALUs and assembler. I love it because: 1. My first computer (an Acorn Electron) had a 6502 processor, and gave me my first exposure to assembler. 2. It's been built so you can do all the exercises in the browser. I really like stuff like this (e.g. Scrimba), as it makes it so much more likely that you'll get started. A related point: as I go…

If you're into 6502 and more specifically the Commodore 64, you should give the winning demo from last weekends Fjälldata a look. Quite insane stuff they do nowadays... https://www.youtube.com/watch?v=WtpPPgFSwxE