This Week In Tupai: 2018-02-19

This week, the first week of serious development, has seen some major improvements in Tupai; primarily due to the fact that the project now exists. We have active ports for both i386 and x86_64, as well as paging, VGA, exception, PIC, GDT and IDT support. We’re also using GRUB as the primary bootloader for now.

• base
  • Created build system using makefile, made kernel a modular component
  • Started using GRUB as the bootloader
• i386
  • Added assembly startup routines
  • Added Multiboot 2 compliance
  • Set stack
  • Preserved Multiboot data
  • Set up higher and identity boot page tables
  • Enable paging, jumped to higher-half code
  • Added GDT support
  • Added IDT support
  • Added exception handler support
• x86_64
  • Began working on the x86_64 port
  • Set up boot GDT
  • Set up higher and identity boot page tables
  • Enabled PAE, long mode in the MSR, jumped to to higher-half code
  • Added GDT support
  • Added IDT support
  • Added exception handler stubs
• x86 family
  • Added PIC initiation and remapping support
  • Added I/O port support
  • Added exception / interrupt support
• kernel
  • Started using Rust
  • Organised code into a modular, target-independent manner with conditional compilation
  • Added logging macros
• drivers
  • Added simple VGA textmode driver
  • Added colour support
  • Added newline and tab support
  • Added scrolling support