bit_operations.h File Reference

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Functions
uint16_t	bit_reverse16 (uint16_t data)
	Bit reverse a 16 bit word.
uint32_t	bit_reverse32 (uint32_t data)
	Bit reverse a 32 bit word.
uint32_t	bit_reverse_4bytes (uint32_t data)
	Bit reverse each of the four bytes in a 32 bit word.
void	bit_reverse (uint8_t to[], const uint8_t from[], int len)
	Bit reverse each bytes in a buffer.
int	one_bits32 (uint32_t x)
	Find the number of set bits in a 32 bit word.
uint32_t	make_mask32 (uint32_t x)
	Create a mask as wide as the number in a 32 bit word.
uint16_t	make_mask16 (uint16_t x)
	Create a mask as wide as the number in a 16 bit word.

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Detailed Description

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Function Documentation

void bit_reverse (  uint8_t  to[], const uint8_t  from[], int  len )

Bit reverse each bytes in a buffer. Parameters: to  The buffer to place the reversed data in. from  The buffer containing the data to be reversed. The  length of the data in the buffer.

uint16_t bit_reverse16 (  uint16_t  data  )

Bit reverse a 16 bit word. Parameters: data  The word to be reversed. Returns: The bit reversed version of data.

uint32_t bit_reverse32 (  uint32_t  data  )

Bit reverse a 32 bit word. Parameters: data  The word to be reversed. Returns: The bit reversed version of data.

uint32_t bit_reverse_4bytes (  uint32_t  data  )

Bit reverse each of the four bytes in a 32 bit word. Parameters: data  The word to be reversed. Returns: The bit reversed version of data.

uint16_t make_mask16 (  uint16_t  x  )

Create a mask as wide as the number in a 16 bit word. Parameters: x  The word to be searched. Returns: The mask.

uint32_t make_mask32 (  uint32_t  x  )

Create a mask as wide as the number in a 32 bit word. Parameters: x  The word to be searched. Returns: The mask.

int one_bits32 (  uint32_t  x  )

Find the number of set bits in a 32 bit word. Parameters: x  The word to be searched. Returns: The number of set bits.

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