bit.h File Reference

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Macros
#define	MASK(b_hi, b_lo)    (((1ULL << ((b_hi) - (b_lo) + 1ULL)) - 1ULL) << (b_lo))
#define	SET_BIT(b, x)   (((x) & 1) << (b))
#define	SET_BITS(b_hi, b_lo, x)    (((x) & ((1ULL << ((b_hi) - (b_lo) + 1ULL)) - 1ULL)) << (b_lo))
#define	GET_BIT(b, x)    (((x) & (1ULL << (b))) >> (b))
#define	GET_BITS(b_hi, b_lo, x)    (((x) & MASK(b_hi, b_lo)) >> (b_lo))

Macro Definition Documentation

GET_BIT

#define GET_BIT	(		b,
			x
	)		(((x) & (1ULL << (b))) >> (b))

GET_BITS

#define GET_BITS	(		b_hi,
			b_lo,
			x
	)		(((x) & MASK(b_hi, b_lo)) >> (b_lo))

MASK

#define MASK	(		b_hi,
			b_lo
	)		(((1ULL << ((b_hi) - (b_lo) + 1ULL)) - 1ULL) << (b_lo))

SET_BIT

#define SET_BIT	(		b,
			x
	)		(((x) & 1) << (b))

SET_BITS

#define SET_BITS	(		b_hi,
			b_lo,
			x
	)		(((x) & ((1ULL << ((b_hi) - (b_lo) + 1ULL)) - 1ULL)) << (b_lo))