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Add GET/PUT_UINT24_BE/LE

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Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
This commit is contained in:
Jerry Yu 2021-10-27 13:52:04 +08:00
parent 148d3d7de0
commit 643d11606a
1 changed files with 72 additions and 0 deletions
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72
library/common.h
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@ -226,6 +226,78 @@ extern void (*mbedtls_test_hook_test_fail)( const char * test, int line, const c
}
#endif
/**
* Get the unsigned 24 bits integer corresponding to four bytes in
* big-endian order (MSB first).
*
* \param data Base address of the memory to get the four bytes from.
* \param offset Offset from \p base of the first and most significant
* byte of the four bytes to build the 24 bits unsigned
* integer from.
*/
#ifndef MBEDTLS_GET_UINT24_BE
#define MBEDTLS_GET_UINT24_BE( data , offset ) \
( \
( (uint32_t) ( data )[( offset ) ] << 16 ) \
| ( (uint32_t) ( data )[( offset ) + 1] << 8 ) \
| ( (uint32_t) ( data )[( offset ) + 2] ) \
)
#endif
/**
* Put in memory a 24 bits unsigned integer in big-endian order.
*
* \param n 24 bits unsigned integer to put in memory.
* \param data Base address of the memory where to put the 24
* bits unsigned integer in.
* \param offset Offset from \p base where to put the most significant
* byte of the 24 bits unsigned integer \p n.
*/
#ifndef MBEDTLS_PUT_UINT24_BE
#define MBEDTLS_PUT_UINT24_BE( n, data, offset ) \
{ \
( data )[( offset ) ] = MBEDTLS_BYTE_2( n ); \
( data )[( offset ) + 1] = MBEDTLS_BYTE_1( n ); \
( data )[( offset ) + 2] = MBEDTLS_BYTE_0( n ); \
}
#endif
/**
* Get the unsigned 24 bits integer corresponding to four bytes in
* little-endian order (LSB first).
*
* \param data Base address of the memory to get the four bytes from.
* \param offset Offset from \p base of the first and least significant
* byte of the four bytes to build the 24 bits unsigned
* integer from.
*/
#ifndef MBEDTLS_GET_UINT24_LE
#define MBEDTLS_GET_UINT24_LE( data, offset ) \
( \
( (uint32_t) ( data )[( offset ) ] ) \
| ( (uint32_t) ( data )[( offset ) + 1] << 8 ) \
| ( (uint32_t) ( data )[( offset ) + 2] << 16 ) \
)
#endif
/**
* Put in memory a 24 bits unsigned integer in little-endian order.
*
* \param n 24 bits unsigned integer to put in memory.
* \param data Base address of the memory where to put the 24
* bits unsigned integer in.
* \param offset Offset from \p base where to put the least significant
* byte of the 24 bits unsigned integer \p n.
*/
#ifndef MBEDTLS_PUT_UINT24_LE
#define MBEDTLS_PUT_UINT24_LE( n, data, offset ) \
{ \
( data )[( offset ) ] = MBEDTLS_BYTE_0( n ); \
( data )[( offset ) + 1] = MBEDTLS_BYTE_1( n ); \
( data )[( offset ) + 2] = MBEDTLS_BYTE_2( n ); \
}
#endif
/**
* Get the unsigned 64 bits integer corresponding to eight bytes in
* big-endian order (MSB first).