My approach to writing a simple operating system using ASM only
It is a project that helped me learn a bit about the hardware I'm working on. The OS loads a GDT, enables A20 line etc. and boots up to show a simple prompt. It offers some small programs. The OS is using text mode, since I wanted to keep this project small and not use additional charmaps.
It boots on real hardware but one has to use a PS/2 keyboard, or enable port 60/64 emulation in BIOS. Writing an USB stack would take more time than the OS itelf so I have decided to use the PS/2 standard.
Here are some screenshots from the OS: Hanoi tower solver program:
And the information panel:
Anyone interested in developing an OS - feel free to contact me, I will help if I can