Subtrack

Build a Mini Kernel

Capstone subtrack: build a functioning mini kernel from scratch. Learn the boot sequence, protected mode, GDT, IDT, PIC, timer, keyboard and serial drivers, VGA text mode, physical memory mapping, page tables, context switching, round-robin scheduling, and system call interfaces.

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~675 Minutes 15 Challenges

Tasks (15)

Set Up Cross-Compiler Build Environment for OS Development

medium

Understand the x86 Boot Sequence

medium

Build a Mini Kernel

Tasks (15)

Set Up Cross-Compiler Build Environment for OS Development

Understand the x86 Boot Sequence

Switch from Real Mode to Protected Mode

Set Up the Global Descriptor Table

Implement Interrupt Descriptor Table and Handlers

Program the 8259 Programmable Interrupt Controller

Program the PIT for Kernel Preemption

Write a PS/2 Keyboard Driver

Implement Serial Port Output for Kernel Debugging

Write to VGA Text Mode Buffer

Parse the BIOS Memory Map (E820)

Set Up x86 Page Tables for Virtual Memory

Implement Context Switch in Assembly

Build a Round-Robin Task Scheduler

Implement a System Call Interface