Help me understand iPXE code

[Rickert]

Thanks Micheal,

I have a few more questions regard of this technique:

• What's this technique called?
• How to generate a similar table and use it in my code? Are the table names auto-generated or declared?
• What's the reason for doing this? Isn't it easier to create an array of function pointers?
  

I would really appreciate if you provide relevant resources for studying more of this process.

Thanks again.