MiyarOS - v0.2

MiyarOS v0.2 – Memory Management

MiyarOS v0.2 introduces the project's first complete memory management subsystem and significantly improves kernel stability, diagnostics, and code organization.

Highlights

• Physical Memory Manager (PMM)
• Multiboot memory map detection
• Bitmap-based frame allocator
• Kernel heap (kmalloc/kfree)
• Paging support
• Virtual Memory Manager (VMM)
• Dynamic page table creation
• Read-only kernel memory protection
• Dedicated page fault handler
• Improved kernel panic diagnostics
• Refactored shell with table-driven command dispatch
• General code cleanup and stability improvements

Included

• Bootable x86 ISO
• Source code
• GPLv3 licensed

This release completes the Memory Management milestone for MiyarOS.

MiyarOS - v0.1

MiyarOS v0.1 – Initial Release

The first public release of MiyarOS.

MiyarOS is a hobby operating system written from scratch in C and x86 Assembly for the x86 architecture. Version 0.1 establishes the project's foundation with a bootable kernel, hardware initialization, interrupt handling, basic drivers, and an interactive command-line shell.

Highlights

• Multiboot-compliant boot process using GRUB
• 32-bit x86 kernel written in C and x86 Assembly
• Global Descriptor Table (GDT)
• Interrupt Descriptor Table (IDT)
• PIC remapping and IRQ handling
• CPU exception handling
• PS/2 keyboard driver with Shift support
• VGA text-mode terminal
• Terminal scrolling and backspace support
• Serial debugging output
• PIT timer and uptime tracking
• Interactive shell with built-in commands
• Kernel panic support

Included Shell Commands

• help
• about
• version
• echo
• uptime
• clear
• reboot
• shutdown

Milestone

This release establishes the core kernel architecture that future versions build upon. It provides the essential low-level infrastructure required for more advanced operating system features, including memory management, multitasking, filesystems, and user-mode execution.

The next milestone, v0.2 – Memory Management, focuses on implementing physical and virtual memory management, paging, a kernel heap, and improved kernel diagnostics.