At one point I was crazy about creating and studying alternative operating systems. While I still find OSDev fascinating, I have moved onto other interests. This page contains links and notes from my previous studies. I also have a notebook filled with notes that I probably might maybe scan or type up one day. As a point of background, my first programming job was to convert an existing RTOS system for a custom digital board from Cosmac 1802 assembly to C and 6809 assembly. It was extremely difficult for me, but I found that I loved every moment of it. That project was of course much simpler than a general-purpose OS targeting the x86, but it stoked the embers of interest in me, and I have been fascinated with OSDev ever since. {menu: {min_levels: 2}} I’ve studied most of these deeply and found them incredibly instructional. Mona OS - The OS I would create if I had the ski...