MiniOS Kernel (ARMv7)

This is a minimal bare-metal ARM kernel project built for educational and prototyping purposes.
It includes multitasking, a UART shell, a simple task scheduler, and IRQ handling.
Tested and compatible with Windows 10 using arm-none-eabi-gcc and QEMU.

Features

ARMv7 Bootloader (boot.s, boot.ld)
UART driver (uart.c, uart.h)
Task manager with real context switching (task.c, switch.s)
Round-robin scheduler triggered by timer IRQ (irq.s)
Interactive shell via UART (shell.c)
- Supported commands:
  - ps – list tasks
  - echo – simple message
  - halt – stop execution

Requirements

How to Build and Run

make
qemu-system-arm -M versatilepb -m 128M -nographic -kernel kernel.bin

Once running, you'll see:

MiniOS Kernel Booted
MiniOS Shell>

Type one of the supported commands (ps, echo, halt).

Next Steps (Optional)

Virtual File System (VFS)
ls, cat, cd shell commands
ELF binary loader
FAT32 filesystem support
Advanced multitasking with priorities

Author

Built by Georgiana using ARM bare-metal architecture.
Powered by QEMU and the GNU ARM Toolchain.

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