Show HN: TreeOS – A 16-bit bootsector Christmas tree demo

Welcome to TreeOS! This is a very simple, hacky, but working, “demo” that draws a spinning Christmas tree and a small message while running on bare PC hardware (no underlying operating system), using only standard VGA hardware. Merry Christmas! This demo is a bootable floppy disk. it is pure 16-bit code, and uses the BIOS…