Programming for EFI

EFI is fun, you pretty much have to reinvent everything like in 1980. I wrote an entire UI, the Mac OS X login screen, for when your disk is encrypted (so no real OS X can run), just getting the bitmap fonts to display on the screen was weeks of work.

Also worthy of note, the UEFI specification itself.

http://www.uefi.org/specifications

After skimming through all the content it appears that it's just a get started tutorial.

Past the hello world it's up to you to read the sources of other EFI programs to understand how it works.

I hope the author will extend this tutorial, EFI looks scary without help.