# Cervus x86_64 Operating System [](https://www.gnu.org/licenses/gpl-3.0) [](https://en.wikipedia.org/wiki/X86-64) []() **Cervus** - This is a modern 64-bit operating system written for the x86_64 architecture. It is currently under development. --- ## Technical Features Cervus is currently in the active development phase. The kernel implements core low-level primitives required for a stable execution environment: ### Core Architecture - *Boot Protocol:* Utilizes the [Limine](https://github.com/limine-bootloader/limine) bootloader (Barebone profile). - *Memory Management:* - *PMM:* Bitmap-based Physical Memory Manager. - *VMM:* Virtual Memory Management with 4-level paging support. - *CPU Initialization:* Custom GDT (Global Descriptor Table) and IDT (Interrupt Descriptor Table) implementation. - *Acceleration:* Native support for *SIMD* instructions (SSE/AVX) with proper state saving. ## Roadmap & Progress | Component | Status | Description | | :--- | :---: | :--- | | *Bootloader* | Done | Limine Integration | | *Graphics/PSF* | Done | Framebuffer & Text Rendering | | *Memory (PMM/VMM)* | Done | Physical & Virtual Memory Management | | *Interrupts (IDT)* | Done | Handling exceptions and IRQs | | *ACPI* | Done(without rebooting) | Table parsing & SDT discovery | | *APIC / IOAPIC* | Done | Advanced Interrupt Controllers | | *Timers (HPET/APIC)* | Done | High Precision Event Timers | | *SMP* | Done | Multicore Initialization | | *Scheduler* | Done/In parallel development | Preemptive Multitasking | | *Userspace* | In parallel development | Syscalls & Ring 3 execution | --- ## Build Environment ### Prerequisites To build Cervus, you need a cross-compilation toolchain and the following utilities: * *Compiler:* `x86_64-elf-gcc` * *Assemblers:* `nasm` * *Emulation:* `qemu-system-x86_64` * *ISO Tools:* `xorriso`, `mtools` ### Compiling and Running *1. Clone the repository:* ```bash bash git clone https://github.com/VeoQeo/Cervus.git cd Cervus ``` *2. Compile and launch in QEMU:* ```bash ./build run ``` *3. Deploy to hardware (Flash Drive):* **WARNING: This will overwrite data on the target device.** ```bash sudo ./build flash ``` ## Contributing Cervus is an open-source research project. Contributions regarding bug fixes, hardware support, or documentation are welcome. Please feel free to open an Issue or submit a Pull Request. ## License This project is licensed under the *GPL-3.0 License*. See the [LICENSE](LICENSE) file for details. ---