- QEMU supports directly booting up multiboot stuff so screw grub or anything else for now
- GNU Binutils - cross compiled
- GNU GCC - cross compiled
- %[r]h - high
- %[r]l - low
- %[r]x - 16-bit
- a - accum
- b - base
- si - source index
- You can't touch segment registers directly as you need to interface with a regular one and then move the data.