A couple of useful links that came up on the OpenBSD misc mailing list
Writting assembly in OpenBSDFree book (by uni professor) on 32 bit Intel assemblyNot that I plan to do much assembly if I can avoid it. I'm only doing some at the moment as part of the back burner Winterm hacking project, and that's out of interest to understand PC architecture more. The majority of coding I'll do will be in C, unless pure asm is actually required.