this post was submitted on 25 Mar 2024

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You can certainly change it. But should you? (lemmy.ml)

submitted 7 months ago by fl42v@lemmy.ml to c/programmer_humor@programming.dev

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[–] rooster_butt@lemm.ee 23 points 7 months ago* (last edited 7 months ago) (1 children)

They do in embedded when you are polling a read only register. The cpu can change the register but writing to it does nothing.

[–] QuaternionsRock@lemmy.world 1 points 7 months ago

That seems like a better fit for an intrinsic, doesn’t it? If it truly is a register, then referencing it through a (presumably global) variable doesn’t semantically align with its location, and if it’s a special memory location, then it should obviously be referenced through a pointer.