GitHub - hrasityilmaz/TamgaOs: Experimental BareMetal RTOS written in Zig and C and Arm Assembly

Source: https://github.com/hrasityilmaz/TamgaOs

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| Name | Name | Last commit message | Last commit date | | --- | --- | --- | --- |

| ## Latest commit ![Image 3: hrasityilmaz](https://github.com/hrasityilmaz)hrasityilmaz stm32H7 file included to docs Jun 30, 2026 f1a7369·Jun 30, 2026 ## History 166 Commits Open commit details [](https://github.com/hrasityilmaz/TamgaOs/commits/main/)166 Commits |

| [docs](https://github.com/hrasityilmaz/TamgaOs/tree/main/docs "docs") | [docs](https://github.com/hrasityilmaz/TamgaOs/tree/main/docs "docs") | [stm32H7 file included to docs](https://github.com/hrasityilmaz/TamgaOs/commit/f1a736980e3e14122a0209338b184388f44649b6 "stm32H7 file included to docs") | Jun 30, 2026 |

| [images](https://github.com/hrasityilmaz/TamgaOs/tree/main/images "images") | [images](https://github.com/hrasityilmaz/TamgaOs/tree/main/images "images") | [gif file tamgaos rtos](https://github.com/hrasityilmaz/TamgaOs/commit/8cbe3654586bd8994be41ee9be371a7d9580a7b9 "gif file tamgaos rtos") | Jun 28, 2026 |

| [kernels](https://github.com/hrasityilmaz/TamgaOs/tree/main/kernels "kernels") | [kernels](https://github.com/hrasityilmaz/TamgaOs/tree/main/kernels "kernels") | [populated sched_wake_task to scheduler.c](https://github.com/hrasityilmaz/TamgaOs/commit/5678fa926aed3fadec72b373c378af5651c1bb49 "populated sched_wake_task to scheduler.c") | Jun 29, 2026 |

| [.clangd](https://github.com/hrasityilmaz/TamgaOs/blob/main/.clangd ".clangd") | [.clangd](https://github.com/hrasityilmaz/TamgaOs/blob/main/.clangd ".clangd") | [clangd for editor warnings](https://github.com/hrasityilmaz/TamgaOs/commit/e17912695da061f036f979f742ef7c7edd261e95 "clangd for editor warnings") | Jun 13, 2026 |

| [.gitignore](https://github.com/hrasityilmaz/TamgaOs/blob/main/.gitignore ".gitignore") | [.gitignore](https://github.com/hrasityilmaz/TamgaOs/blob/main/.gitignore ".gitignore") | [Added hex also to ignore](https://github.com/hrasityilmaz/TamgaOs/commit/9c7576ada7d61a6bd2394c217cd0b58b313f0780 "Added hex also to ignore") | Jun 18, 2026 |

| [README.md](https://github.com/hrasityilmaz/TamgaOs/blob/main/README.md "README.md") | [README.md](https://github.com/hrasityilmaz/TamgaOs/blob/main/README.md "README.md") | [README updated](https://github.com/hrasityilmaz/TamgaOs/commit/ec3d05bdb25db1748823db43d635b2cdf3f370d5 "README updated") | Jun 29, 2026 | | View all files |

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TamgaOS

[](https://github.com/hrasityilmaz/TamgaOs#tamgaos)

Bare-metal RTOS written in C and ARM assembly for the NXP K64F (Cortex-M4).

Started as a learning project — bootloaders, memory layouts, context switching, executable formats.

Later will add zig port

![Image 4: TamgaOS](https://github.com/hrasityilmaz/TamgaOs/blob/main/images/tamgaos_rtos.gif)![Image 5: TamgaOS](https://github.com/hrasityilmaz/TamgaOs/blob/main/images/tamgaos_rtos.gif)[](https://github.com/hrasityilmaz/TamgaOs/blob/main/images/tamgaos_rtos.gif)

ARM port — K64F (Cortex-M4)

[](https://github.com/hrasityilmaz/TamgaOs#arm-port--k64f-cortex-m4)

Currently active. All kernel work targets the NXP K64F board. Zig port planned for later.

**Boot**

- Startup file

- Linker script (linker.ld)

- MCG clock init

**Kernel**

- Preemptive scheduler

- PendSV context switch

- PSP per-task isolation

**Sync**

- Mutex (LDREX/STREX)

- Semaphore

- Critical section (cpsid/cpsie)

**Drivers**

- SysTick

- UART

- PIT timer

Still improving — development notes at https://auctra.app

x86 port — Zig & C kernel

[](https://github.com/hrasityilmaz/TamgaOs#x86-port--zig--c-kernel)

Experimental dual implementation for comparing low-level Zig vs C. Boots via Limine with a Multiboot2 header.

**Implemented**

- GDT setup

- Serial monitor

- ISO via xorriso

- Zig + C comparison

**Boot output**

``` Zig -> TamgaOS KERNEL OK C -> TamgaOS __C__ GDT OK __C__ Kernel OK __C__ ```

![Image 6: TamgaOS](https://github.com/hrasityilmaz/TamgaOs/blob/main/images/tamgaos.gif)![Image 7: TamgaOS](https://github.com/hrasityilmaz/TamgaOs/blob/main/images/tamgaos.gif)[](https://github.com/hrasityilmaz/TamgaOs/blob/main/images/tamgaos.gif)

Build

[](https://github.com/hrasityilmaz/TamgaOs#build)

ARM — K64F

[](https://github.com/hrasityilmaz/TamgaOs#arm--k64f)

undefinedshell make clean make make flash undefined

x86 — Zig

[](https://github.com/hrasityilmaz/TamgaOs#x86--zig)

undefinedpowershell zig build -Doptimize=ReleaseFast .\mkiso.ps1 qemu-system-i386 -cdrom .\TamgaOS.iso -boot d -serial stdio undefined

x86 — C

[](https://github.com/hrasityilmaz/TamgaOs#x86--c)

undefinedpowershell .\mkiso_c.ps1 qemu-system-i386 -cdrom .\TamgaOS_C.iso -boot d -serial stdio undefined

Allredy x86 part will not continue active development will be on ARM part !

- * *

Not a production OS. Development log: https://auctra.app

About

Experimental BareMetal RTOS written in Zig and C and Arm Assembly

[auctra.app/](https://auctra.app/ "https://auctra.app/")

Topics

[c](https://github.com/topics/c "Topic: c")[arm](https://github.com/topics/arm "Topic: arm")[kernel](https://github.com/topics/kernel "Topic: kernel")[zig](https://github.com/topics/zig "Topic: zig")[osdev](https://github.com/topics/osdev "Topic: osdev")[cortex-m4](https://github.com/topics/cortex-m4 "Topic: cortex-m4")[cortex-m7](https://github.com/topics/cortex-m7 "Topic: cortex-m7")[devlog](https://github.com/topics/devlog "Topic: devlog")[devlogs](https://github.com/topics/devlogs "Topic: devlogs")[osdevel](https://github.com/topics/osdevel "Topic: osdevel")