upOS

"Either the Up Operating System, or Unmanaged Process Operating System. Your choice."

upOS is a 32-bit DOS written completely in assembly.

Features

• Fully custom bootloader (with a TUI & options)
• Both bootloader and kernel completely written in assembly
• 32-bit (x86)
• Fits entirely on a 1.44MB floppy disk

Roadmap

• GDT
• IDT
• PIC
• Serial driver (QEMU debugcon only for now)
• VGA driver
• RTC driver
• Keyboard driver
• Basic shell
• PMM
• Heap
• ATA driver
• FAT32 filesystem
• ELF execution

Screenshots