• rooster_butt@lemm.ee
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    7 months ago

    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
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      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.