DimOS

A x86_64 Operating System. An OS with a future that's not quite bright.

Features

• Limine boot
• Long Mode (64 bit), Higher Half Kernel
• Software and Hardware Interrupts (IDT and PIT)
• Physical Memory Manager (Bitmap based)
• Virtual Memory Manager (4 Level Paging support)
• Kernel Heap (FreeList)
• malloc/free and new/delete support
• Minimal libc printf
• Kernel Threads with Context Switching
• Preemptive Multitasking using timer interupts (PIT)
• Round Robin Scheduler
• Concurrency primitives (Mutex, Condition Variable, and Semaphore)
• Virtual File System
• Custom Ramdisk file system
• Keyboard support
• Kernel space shell
• Userland process and threads
• System Calls
• Users pace Shell
• Actual libc
• Network Stack
• Basic GUI...

Here's a basic demo of the kernel space shell

Build Instructions

Requirements:

• Qemu for emulation (Ex: brew install qemu)
• x86_64_elf gcc cross compiler (Ex: brew install x86_64-elf-gcc)
• xorriso for iso creation (Ex: brew install xorriso)

Build and run

• Clone the repo
• Run git submodule update --init (or clone recursively in first step itself)
• Run make -C limine
• Run ./all.sh to clean + build + run.
• Use ./build.sh for just building, ./qemu.sh for just running