>How did you gain the knowledge to implement all these subsystems? Did you use any specific resources?
I spent many years with a PC emulator (my other GH repo) being my only main hobby project. It's a reasonably correct 80386 with various peripherals and a BIOS. This project allowed me to take 80% of the skills acquired from the emulator, turn them inside out, and build an operating system from them. Of course, Serenity eventually outgrew the limitations of my emulator (no networking, no FPU, no VESA LFB...) and I've stopped trying to catch up for now.
Other than that, the OSDev.org wiki has been immensely helpful at times, and the vast number of open source operating systems you can look at for help/inspiration when stuck. :)
I spent many years with a PC emulator (my other GH repo) being my only main hobby project. It's a reasonably correct 80386 with various peripherals and a BIOS. This project allowed me to take 80% of the skills acquired from the emulator, turn them inside out, and build an operating system from them. Of course, Serenity eventually outgrew the limitations of my emulator (no networking, no FPU, no VESA LFB...) and I've stopped trying to catch up for now.
Other than that, the OSDev.org wiki has been immensely helpful at times, and the vast number of open source operating systems you can look at for help/inspiration when stuck. :)