u_bitwise.c File Reference

Functions for manipulating tightly packed data as bits. More...

#include "util/u_bitwise.h"
#include <stdio.h>
#include <limits.h>

Include dependency graph for u_bitwise.c:

Macros
#define	INCOMING_INT_WIDTH   (13)
#define	ADJUSTMENT   ((sizeof(i) * CHAR_BIT) - INCOMING_INT_WIDTH)

Functions
int	get_bit (const unsigned char *b, int num)
int	get_bits (const unsigned char *b, int start, int num)
int	sign_extend_13 (uint32_t i)
	Interpret the least-significant 13 bits as a signed 13-bit integer, and cast it to a signed int for normal usage. More...

Detailed Description

Functions for manipulating tightly packed data as bits.

Author

Jakob Bornecrantz jakob.nosp@m.@col.nosp@m.labor.nosp@m.a.co.nosp@m.m

Pete Black pete..nosp@m.blac.nosp@m.k@col.nosp@m.labo.nosp@m.ra.co.nosp@m.m

Function Documentation

sign_extend_13()

int sign_extend_13

(

uint32_t

i

)

Interpret the least-significant 13 bits as a signed 13-bit integer, and cast it to a signed int for normal usage.