mirror of
https://github.com/CovidBraceletPrj/CovidBracelet.git
synced 2024-11-11 05:58:52 +01:00
69 lines
2.1 KiB
C
69 lines
2.1 KiB
C
/*
|
|
* Copyright (c) 2001-2019, Arm Limited and Contributors. All rights reserved.
|
|
*
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
|
*/
|
|
|
|
/*! @file
|
|
@brief This file defines bit-field operations macros.
|
|
*/
|
|
|
|
#ifndef _CC_BITOPS_H_
|
|
#define _CC_BITOPS_H_
|
|
|
|
|
|
/*! Defintion of number of 32bit maximum value. */
|
|
#define CC_32BIT_MAX_VALUE (0xFFFFFFFFUL)
|
|
|
|
/*! Definition for bitmask */
|
|
#define BITMASK(mask_size) (((mask_size) < 32) ? \
|
|
((1UL << (mask_size)) - 1) : 0xFFFFFFFFUL)
|
|
/*! Definition for bitmask in a given offset. */
|
|
#define BITMASK_AT(mask_size, mask_offset) (BITMASK(mask_size) << (mask_offset))
|
|
|
|
/*! Definition for getting bits value from a word. */
|
|
#define BITFIELD_GET(word, bit_offset, bit_size) \
|
|
(((word) >> (bit_offset)) & BITMASK(bit_size))
|
|
/*! Definition for setting bits value from a word. */
|
|
#define BITFIELD_SET(word, bit_offset, bit_size, new_val) do { \
|
|
word = ((word) & ~BITMASK_AT(bit_size, bit_offset)) | \
|
|
(((new_val) & BITMASK(bit_size)) << (bit_offset)); \
|
|
} while (0)
|
|
|
|
/*!Definition for is val aligned to "align" ("align" must be power of 2). */
|
|
#ifndef IS_ALIGNED
|
|
#define IS_ALIGNED(val, align) \
|
|
(((uintptr_t)(val) & ((align) - 1)) == 0)
|
|
#endif
|
|
/*!Definition swap endianity for 32 bits word. */
|
|
#define SWAP_ENDIAN(word) \
|
|
(((word) >> 24) | (((word) & 0x00FF0000) >> 8) | \
|
|
(((word) & 0x0000FF00) << 8) | (((word) & 0x000000FF) << 24))
|
|
|
|
#ifdef BIG__ENDIAN
|
|
#define SWAP_TO_LE(word) SWAP_ENDIAN(word)
|
|
#define SWAP_TO_BE(word) word
|
|
#else
|
|
/*! Definition for swapping to LE. */
|
|
#define SWAP_TO_LE(word) word
|
|
/*! Definition for swapping to BE. */
|
|
#define SWAP_TO_BE(word) SWAP_ENDIAN(word)
|
|
#endif
|
|
|
|
/*!Align X to uint32_t size. */
|
|
#ifndef ALIGN_TO_4BYTES
|
|
#define ALIGN_TO_4BYTES(x) (((unsigned long)(x) + (CC_32BIT_WORD_SIZE-1)) & ~(CC_32BIT_WORD_SIZE-1))
|
|
#endif
|
|
|
|
|
|
|
|
/*! Definition for is val a multiple of "mult" ("mult" must be power of 2). */
|
|
#define IS_MULT(val, mult) \
|
|
(((val) & ((mult) - 1)) == 0)
|
|
|
|
/*! Definition for is NULL address. */
|
|
#define IS_NULL_ADDR(adr) \
|
|
(!(adr))
|
|
|
|
#endif /*_CC_BITOPS_H_*/
|