Zolatron 64: Writing an OS for a 6502 homebrew computer - Machina Speculatrix
mansfield-devine.com/speculatrix/2022/10/zolatron-64-writing-an-os-for-a-6502-homebrew-computer
What Jamie wrote
What an incredibly geeky and delightful project this is. I fondly remember the 6502 in the Apple II and Apple IIe. It was also in the Atari 2600 but I don't think I knew that back then. The Commodore 64 and the original Nintendo also had the 6502. So, you get the era we are talking about.
What I really dig about this project is that he is actually bringing in some new concepts for the OS.
I’ve written before about how I’m using vectors (on memory page 2) to provide hooks allowing user programs in RAM to invoke OS commands in the ROM. I now have about 42 of these. Because I’ve given over all of page 2 to these vectors, and each is two bytes, I have room for 128, which should be enough.
How fun. 🤓