Architecture-dependent handling of byte-ordering. More...

Files
file	byteordering.c
	Byte-order handling implementation (license: GPLv2 or LGPLv2.1)
file	byteordering.h
	Byte-order handling header (license: GPLv2 or LGPLv2.1)
Defines
#define	HTOL16(val)
	Converts a 16-bit integer from host byte order to little-endian byte order.
#define	HTOL32(val)
	Converts a 32-bit integer from host byte order to little-endian byte order.
#define	LTOH16(val)
	Converts a 16-bit integer from little-endian byte order to host byte order.
#define	LTOH32(val)
	Converts a 32-bit integer from little-endian byte order to host byte order.
Functions
uint16_t	read16 (const uint8_t *p)
	Reads a 16-bit integer from memory in little-endian byte order.
uint32_t	read32 (const uint8_t *p)
	Reads a 32-bit integer from memory in little-endian byte order.
void	write16 (uint8_t *p, uint16_t i)
	Writes a 16-bit integer into memory in little-endian byte order.
void	write32 (uint8_t *p, uint32_t i)
	Writes a 32-bit integer into memory in little-endian byte order.
uint16_t	htol16 (uint16_t h)
	Converts a 16-bit integer from host byte order to little-endian byte order.
uint32_t	htol32 (uint32_t h)
	Converts a 32-bit integer from host byte order to little-endian byte order.
uint16_t	ltoh16 (uint16_t l)
	Converts a 16-bit integer from little-endian byte order to host byte order.
uint32_t	ltoh32 (uint32_t l)
	Converts a 32-bit integer from little-endian byte order to host byte order.

Detailed Description

Architecture-dependent handling of byte-ordering.

Define Documentation

#define HTOL16 ( val )

Converts a 16-bit integer from host byte order to little-endian byte order.

Use this macro for compile time constants only. For variable values use the function htol16() instead. This saves code size.

Parameters:

[in] val A 16-bit integer in host byte order.

Returns:: The given 16-bit integer converted to little-endian byte order.

#define HTOL32 ( val )

Converts a 32-bit integer from host byte order to little-endian byte order.

Use this macro for compile time constants only. For variable values use the function htol32() instead. This saves code size.

Parameters:

[in] val A 32-bit integer in host byte order.

Returns:: The given 32-bit integer converted to little-endian byte order.

#define LTOH16 ( val )

Converts a 16-bit integer from little-endian byte order to host byte order.

Use this macro for compile time constants only. For variable values use the function ltoh16() instead. This saves code size.

Parameters:

[in] val A 16-bit integer in little-endian byte order.

Returns:: The given 16-bit integer converted to host byte order.

#define LTOH32 ( val )

Converts a 32-bit integer from little-endian byte order to host byte order.

Use this macro for compile time constants only. For variable values use the function ltoh32() instead. This saves code size.

Parameters:

[in] val A 32-bit integer in little-endian byte order.

Returns:: The given 32-bit integer converted to host byte order.

Function Documentation

uint16_t htol16 ( uint16_t h )

Converts a 16-bit integer from host byte order to little-endian byte order.

Use this function on variable values instead of the macro HTOL16(). This saves code size.

Parameters:

[in] h A 16-bit integer in host byte order.

Returns:: The given 16-bit integer converted to little-endian byte order.

uint32_t htol32 ( uint32_t h )

Converts a 32-bit integer from host byte order to little-endian byte order.

Use this function on variable values instead of the macro HTOL32(). This saves code size.

Parameters:

[in] h A 32-bit integer in host byte order.

Returns:: The given 32-bit integer converted to little-endian byte order.

uint16_t ltoh16 ( uint16_t l )

Converts a 16-bit integer from little-endian byte order to host byte order.

Use this function on variable values instead of the macro LTOH16(). This saves code size.

Parameters:

[in] l A 16-bit integer in little-endian byte order.

Returns:: The given 16-bit integer converted to host byte order.

uint32_t ltoh32 ( uint32_t l )

Converts a 32-bit integer from little-endian byte order to host byte order.

Use this function on variable values instead of the macro LTOH32(). This saves code size.

Parameters:

[in] l A 32-bit integer in little-endian byte order.

Returns:: The given 32-bit integer converted to host byte order.

uint16_t read16 ( const uint8_t * p )

Reads a 16-bit integer from memory in little-endian byte order.

Parameters:

[in] p Pointer from where to read the integer.

Returns:: The 16-bit integer read from memory.

uint32_t read32 ( const uint8_t * p )

Reads a 32-bit integer from memory in little-endian byte order.

Parameters:

[in] p Pointer from where to read the integer.

Returns:: The 32-bit integer read from memory.

void write16	(	uint8_t *	p,
		uint16_t	i
	)

Writes a 16-bit integer into memory in little-endian byte order.

Parameters:

[in]	p	Pointer where to write the integer to.
[in]	i	The 16-bit integer to write.

void write32	(	uint8_t *	p,
		uint32_t	i
	)

Writes a 32-bit integer into memory in little-endian byte order.

Parameters:

[in]	p	Pointer where to write the integer to.
[in]	i	The 32-bit integer to write.

Files

Defines

Functions

Detailed Description

Define Documentation

Function Documentation