Pelly

16 bit operating system

Named after river Pelly near Pelly Crossing

v1.0.0

Compile Pelly

Required packages

Package:	Command:
nasm	Debian Arch Linux sudo apt-get install nasm sudo pacman -S nasm
qemu	Debian Arch Linux sudo apt-get install qemu sudo pacman -S qemu
wcc	Download 2023-02-01 version of Open Watcom V2.0 (include 16 bit compilers, disable target OS and set host OS to be linux x86)

Only i386 version is required for Qemu.

Recommend to install desktop version of Qemu because it does not require to use VNC clients (it is called qemu-desktop on Arch Linux)

Compile

TODO

• Bootloader
  • FAT12
• Kernel
  • PS/2 keyboard (BIOS Int. 16h)
  • PS/2 mouse
  • Custom interrupts
  • File systems
    • FAT12
    • BBFS
  • Memory
    • Get E820 memory map
    • Allocator
    • Heap
  • GUI
    • Basic windows
    • GUI elements
    • Applications
    • Rounded windows (optional feature)

Credits

• Nanobyte
• Moving a cursor with the keyboard in assembly - Code Review
• Stanislav's Interrupt Services DOS/BIOS/EMS/Mouse list
• ASCII table
• Detecting Memory (x86)
• INT 15h, AX=E820h - Query System Address Map
• Paradox