epOS, an eduational Intel 8086 32bit Operating system by Ramon Fried (2013-2016)

Highlights

• Multiboot 1.0 compliancy
• Bitmap Page frame allocator
• Higer half kernel
• Paging enabled
• Preemptable scheduling using round-robin algorithm
• Ring 0-3 kernel and user space seperation
• ACPICA
• APIC/IOAPIC
• APIC timer
• Complete vsprintf implementation (no floats :))

In Progress

• PS/2 Keyboard driver (8042)

Todo's

• Add testing framework

Prerequisites

• Compilation: $ sudo pacman -S grub mtools nasm libisoburn

• Qemu: $ sudo pacman -S qemu qemu-arch-extra