.... made a BIOS extender for protected mode
Indeed I did, it's called SudoBIOS. In this case however, the MikeOS is 16-bit real mode.
I'll be releasing the 32-bit protected mode version soon.
.... and implemented a FAT32 driver for MikeOS.
Actually, the FAT32 driver is exactly the same as the simple MikeOS FAT12 driver, merely adapted for FAT32 and simplified.
He shows off that Windows XP can read a physical floppy formatted with FAT32,
I'm sure all versions of Windows since can read/write it as well, (Windows98 and DOS can't, but probably due to assumptions
they make concerning floppy disks) the XP machine was simply at hand and I don't presently have a USB floppy drive.
.... and then he is showing MikeOS booting from the floppy.
Also boots and runs from Qemu/Bochs and a USB flash drive on real hardware.
Curiously, the floppy has 32 MB capacity.
The floppy disk (and image) are limited to 1.44 MB, however since Windows will not recognize a FAT32 volume smaller than
32.5 MB some technical trickery was employed.