bit.h File Reference

Bit manipulation helpers. More...

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Macros
#define	BIT(V, X)   ( !!(V & (1 << X)))
#define	SET_BIT(R, X)   (R = (R | (1 << X)))
#define	RESET_BIT(R, X)   (R = (R & ~(1 << X)))
#define	NIBBLE_MASK(X)   (0xf << ((X-1)*4))

Detailed Description

Bit manipulation helpers.

Definition in file bit.h.

Macro Definition Documentation

BIT

#define BIT	(		V,
			X
	)		( !!(V & (1 << X)))

Definition at line 9 of file bit.h.

NIBBLE_MASK

#define NIBBLE_MASK

(

X

)

(0xf << ((X-1)*4))

Definition at line 15 of file bit.h.

RESET_BIT

#define RESET_BIT	(		R,
			X
	)		(R = (R & ~(1 << X)))

Definition at line 11 of file bit.h.

SET_BIT

#define SET_BIT	(		R,
			X
	)		(R = (R | (1 << X)))

Definition at line 10 of file bit.h.