this post was submitted on 15 May 2025
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Programmer Humor

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Tell me the truth ... (piefed.jeena.net)
submitted 4 weeks ago by cm0002@lemmy.world to c/programmer_humor@programming.dev
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[โ€“] skisnow@lemmy.ca 52 points 4 weeks ago (6 children)

Back in the day when it mattered, we did it like

#define BV00		(1 <<  0)
#define BV01		(1 <<  1)
#define BV02		(1 <<  2)
#define BV03		(1 <<  3)
...etc

#define IS_SET(flag, bit)	((flag) & (bit))
#define SET_BIT(var, bit)	((var) |= (bit))
#define REMOVE_BIT(var, bit)	((var) &= ~(bit))
#define TOGGLE_BIT(var, bit)	((var) ^= (bit))

....then...
#define MY_FIRST_BOOLEAN BV00
SET_BIT(myFlags, MY_FIRST_BOOLEAN)
[โ€“] Quatlicopatlix@feddit.org 9 points 4 weeks ago

With embedded stuff its still done like that. And if you go from the arduino functionss to writing the registers directly its a hell of a lot faster.

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