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README.md
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<p align="center"> <p align="center">
<img src="https://github.com/VeoQeo/Cervus/blob/main/wallpapers/cervus_logo.jpg" alt="Cervus OS Logo" width="400px"> <img src="https://git.wienton.ru/Cervus/CervusOS/src/branch/main/wallpapers/cervus_logo.jpg" alt="Cervus OS Logo" width="400px">
</p> </p>
# Cervus x86_64 Operating System # Cervus x86_64 Operating System
[![License: GPL v3](https://img.shields.io/badge/License-GPLv3-blue.svg)](https://www.gnu.org/licenses/gpl-3.0) [![License: GPL v3](https://img.shields.io/badge/License-GPLv3-blue.svg)](https://www.gnu.org/licenses/gpl-3.0)
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Cervus is currently in the active development phase. The kernel implements core low-level primitives required for a stable execution environment: Cervus is currently in the active development phase. The kernel implements core low-level primitives required for a stable execution environment:
### Core Architecture ### Core Architecture
- *Boot Protocol:* Utilizes the [Limine](https://github.com/limine-bootloader/limine) bootloader (Barebone profile).
- *Memory Management:* - _Boot Protocol:_ Utilizes the [Limine](https://github.com/limine-bootloader/limine) bootloader (Barebone profile).
- *PMM:* Bitmap-based Physical Memory Manager. - _Memory Management:_
- *VMM:* Virtual Memory Management with 4-level paging support. - _PMM:_ Bitmap-based Physical Memory Manager.
- *CPU Initialization:* Custom GDT (Global Descriptor Table) and IDT (Interrupt Descriptor Table) implementation. - _VMM:_ Virtual Memory Management with 4-level paging support.
- *Acceleration:* Native support for *SIMD* instructions (SSE/AVX) with proper state saving. - _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 ## Roadmap & Progress
| Component | Status | Description | | Component | Status | Description |
| :--- | :---: | :--- | | :------------------- | :--------------------------: | :----------------------------------- |
| *Bootloader* | Done | Limine Integration | | _Bootloader_ | Done | Limine Integration |
| *Graphics/PSF* | Done | Framebuffer & Text Rendering | | _Graphics/PSF_ | Done | Framebuffer & Text Rendering |
| *Memory (PMM/VMM)* | Done | Physical & Virtual Memory Management | | _Memory (PMM/VMM)_ | Done | Physical & Virtual Memory Management |
| *Interrupts (IDT)* | Done | Handling exceptions and IRQs | | _Interrupts (IDT)_ | Done | Handling exceptions and IRQs |
| *ACPI* | Done(without rebooting) | Table parsing & SDT discovery | | _ACPI_ | Done(without rebooting) | Table parsing & SDT discovery |
| *APIC / IOAPIC* | Done | Advanced Interrupt Controllers | | _APIC / IOAPIC_ | Done | Advanced Interrupt Controllers |
| *Timers (HPET/APIC)* | Done | High Precision Event Timers | | _Timers (HPET/APIC)_ | Done | High Precision Event Timers |
| *SMP* | Done | Multicore Initialization | | _SMP_ | Done | Multicore Initialization |
| *Scheduler* | Done/In parallel development | Preemptive Multitasking | | _Scheduler_ | Done/In parallel development | Preemptive Multitasking |
| *Userspace* | In parallel development | Syscalls & Ring 3 execution | | _Userspace_ | In parallel development | Syscalls & Ring 3 execution |
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@@ -48,14 +48,14 @@ Cervus is currently in the active development phase. The kernel implements core
To build Cervus, you need a cross-compilation toolchain and the following utilities: To build Cervus, you need a cross-compilation toolchain and the following utilities:
* *Compiler:* `x86_64-elf-gcc` - _Compiler:_ `x86_64-elf-gcc`
* *Assemblers:* `nasm` - _Assemblers:_ `nasm`
* *Emulation:* `qemu-system-x86_64` - _Emulation:_ `qemu-system-x86_64`
* *ISO Tools:* `xorriso`, `mtools` - _ISO Tools:_ `xorriso`, `mtools`
### Compiling and Running ### Compiling and Running
*1. Clone the repository:* _1. Clone the repository:_
```bash ```bash
bash bash
@@ -63,13 +63,15 @@ git clone https://github.com/VeoQeo/Cervus.git
cd Cervus cd Cervus
``` ```
*2. Compile and launch in QEMU:* _2. Compile and launch in QEMU:_
```bash ```bash
./build run ./build run
``` ```
*3. Deploy to hardware (Flash Drive):* _3. Deploy to hardware (Flash Drive):_
**WARNING: This will overwrite data on the target device.** **WARNING: This will overwrite data on the target device.**
```bash ```bash
sudo ./build flash sudo ./build flash
``` ```
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## License ## License
This project is licensed under the *GPL-3.0 License*. See the [LICENSE](LICENSE) file for details. This project is licensed under the _GPL-3.0 License_. See the [LICENSE](LICENSE) file for details.
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