sopc_helper_endianness_cfg.h File Reference

Evaluates and records the endianness configuration of the current machine. More...

#include "sopc_common_constants.h"

Go to the source code of this file.

Macros
#define	SOPC_SWAP_2_BYTES(x)
#define	SOPC_SWAP_3_BYTES(x)
#define	SOPC_SWAP_4_BYTES(x)
#define	SOPC_SWAP_8_BYTES(x)
#define	SOPC_SWAP_2_DWORDS(x)
#define	SOPC_TO_LITTLE_ENDIAN_16BITS(iu16)
#define	SOPC_TO_LITTLE_ENDIAN_32BITS(iu32)
#define	SOPC_TO_LITTLE_ENDIAN_32BITS(iu64)
#define	SOPC_TO_LITTLE_ENDIAN_FLOAT(fl32)
#define	SOPC_TO_LITTLE_ENDIAN_DOUBLE(db64)

Functions
void	SOPC_Helper_Endianness_Check (void)
	Check that machine endianness configured (:SOPC_IS_LITTLE_ENDIAN and SOPC_IS_DOUBLE_MIDDLE_ENDIAN) matches actual CPU behavior.

Detailed Description

Evaluates and records the endianness configuration of the current machine.

Macro Definition Documentation

SOPC_SWAP_2_BYTES

#define SOPC_SWAP_2_BYTES

(

x

)

Value:

(uint16_t)(((x) & (uint16_t) 0x00FF) << 8 | ((x) & (uint16_t) 0xFF00) >> 8)

SWAP OPERATIONS

SOPC_SWAP_3_BYTES

#define SOPC_SWAP_3_BYTES

(

x

)

Value:

(((x) &0x0000FF) << 16 | ((x) &0x00FF00) | ((x) &0xFF0000) >> 16)

SOPC_SWAP_4_BYTES

#define SOPC_SWAP_4_BYTES

(

x

)

Value:

    (((x) &0x000000FF) << 24 | ((x) &0x0000FF00) << 8 | ((x) &0xFF000000) >> 24 | ((x) &0x00FF0000) >> 8)

SOPC_SWAP_8_BYTES

#define SOPC_SWAP_8_BYTES

(

x

)

Value:

    (((x) &0x00000000000000FF) << 56 | ((x) &0x000000000000FF00) << 40 | ((x) &0x0000000000FF0000) << 24 | \
     ((x) &0x00000000FF000000) << 8 | ((x) &0xFF00000000000000) >> 56 | ((x) &0x00FF000000000000) >> 40 |  \
     ((x) &0x0000FF0000000000) >> 24 | ((x) &0x000000FF00000000) >> 8)

SOPC_SWAP_2_DWORDS

#define SOPC_SWAP_2_DWORDS

(

x

)

Value:

(((x) &0x00000000FFFFFFFF) << 32 | ((x) &0xFFFFFFFF00000000) >> 32)

SOPC_TO_LITTLE_ENDIAN_16BITS

#define SOPC_TO_LITTLE_ENDIAN_16BITS

(

iu16

)

Value:

(iu16) = SOPC_SWAP_2_BYTES(iu16)

Define integer swapping operation to encode Integers in buffer (As little endian)

SOPC_TO_LITTLE_ENDIAN_32BITS [1/2]

#define SOPC_TO_LITTLE_ENDIAN_32BITS

(

iu32

)

Value:

(iu32) = SOPC_SWAP_4_BYTES(iu32)

SOPC_TO_LITTLE_ENDIAN_32BITS [2/2]

#define SOPC_TO_LITTLE_ENDIAN_32BITS

(

iu64

)

Value:

(iu64) = SOPC_SWAP_8_BYTES(iu64)

SOPC_TO_LITTLE_ENDIAN_FLOAT

#define SOPC_TO_LITTLE_ENDIAN_FLOAT

(

fl32

)

Value:

(fl32) = SOPC_SWAP_4_BYTES(fl32)

SOPC_TO_LITTLE_ENDIAN_DOUBLE

#define SOPC_TO_LITTLE_ENDIAN_DOUBLE

(

db64

)

Value:

(db64) = SOPC_SWAP_8_BYTES(db64)

Function Documentation

SOPC_Helper_Endianness_Check()

void SOPC_Helper_Endianness_Check

(

void

)

Check that machine endianness configured (:SOPC_IS_LITTLE_ENDIAN and SOPC_IS_DOUBLE_MIDDLE_ENDIAN) matches actual CPU behavior.