If you have not read this book, and you are reading this blog, then you should make time to read it soon, it is a classic.
http://bioshacking.blogspot.com/2016/05/bios-disassembly-ninjutsu-pdf-moved-to.html
https://github.com/pinczakko/BIOS-Disassembly-Ninjutsu-Uncovered
He has more firmware research on his web site:
https://sites.google.com/site/pinczakko/
http://bioshacking.blogspot.com/
