[mycall]

Unless you are doing embedded programming.

[asguy]

Especially when you are doing embedded programming.

You think those GPIO registers are going to encode themselves?

[kettro]

Macros are the lifeblood of embedded C. I have a use case where I need to read, shift, and OR a value, then write back. If I need to do that for more than 1 thing, sure as shit I'll write a macro.