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149
apps/elftosb/common/EndianUtilities.h
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149
apps/elftosb/common/EndianUtilities.h
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/*
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* File: EndianUtilities.h
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*
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* Copyright (c) Freescale Semiconductor, Inc. All rights reserved.
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* See included license file for license details.
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*/
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#if !defined(_EndianUtilities_h_)
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#define _EndianUtilities_h_
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//! \name Swap macros
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//! These macros always swap the data.
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//@{
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//! Byte swap 16-bit value.
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#define _BYTESWAP16(value) (((((uint16_t)value) << 8) & 0xFF00) | ((((uint16_t)value) >> 8) & 0x00FF))
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//! Byte swap 32-bit value.
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#define _BYTESWAP32(value) \
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(((((uint32_t)value) << 24) & 0xFF000000) | ((((uint32_t)value) << 8) & 0x00FF0000) | \
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((((uint32_t)value) >> 8) & 0x0000FF00) | ((((uint32_t)value) >> 24) & 0x000000FF))
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//! Byte swap 64-bit value.
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#define _BYTESWAP64(value) \
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(((((uint64_t)value) << 56) & 0xFF00000000000000ULL) | ((((uint64_t)value) << 40) & 0x00FF000000000000ULL) | \
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((((uint64_t)value) << 24) & 0x0000FF0000000000ULL) | ((((uint64_t)value) << 8) & 0x000000FF00000000ULL) | \
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((((uint64_t)value) >> 8) & 0x00000000FF000000ULL) | ((((uint64_t)value) >> 24) & 0x0000000000FF0000ULL) | \
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((((uint64_t)value) >> 40) & 0x000000000000FF00ULL) | ((((uint64_t)value) >> 56) & 0x00000000000000FFULL))
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//@}
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//! \name Inline swap functions
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//@{
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inline uint16_t _swap_u16(uint16_t value)
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{
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return _BYTESWAP16(value);
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}
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inline int16_t _swap_s16(int16_t value)
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{
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return (int16_t)_BYTESWAP16((uint16_t)value);
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}
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inline uint32_t _swap_u32(uint32_t value)
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{
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return _BYTESWAP32(value);
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}
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inline int32_t _swap_s32(int32_t value)
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{
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return (int32_t)_BYTESWAP32((uint32_t)value);
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}
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inline uint64_t _swap_u64(uint64_t value)
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{
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return _BYTESWAP64(value);
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}
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inline int64_t _swap_s64(int64_t value)
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{
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return (uint64_t)_BYTESWAP64((uint64_t)value);
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}
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//@}
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#if defined(__LITTLE_ENDIAN__)
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/* little endian host */
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#define ENDIAN_BIG_TO_HOST_U16(value) (_swap_u16(value))
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#define ENDIAN_HOST_TO_BIG_U16(value) (_swap_u16(value))
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#define ENDIAN_BIG_TO_HOST_S16(value) (_swap_s16(value))
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#define ENDIAN_HOST_TO_BIG_S16(value) (_swap_s16(value))
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#define ENDIAN_BIG_TO_HOST_U32(value) (_swap_u32(value))
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#define ENDIAN_HOST_TO_BIG_U32(value) (_swap_u32(value))
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#define ENDIAN_BIG_TO_HOST_S32(value) (_swap_s32(value))
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#define ENDIAN_HOST_TO_BIG_S32(value) (_swap_s32(value))
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#define ENDIAN_BIG_TO_HOST_U64(value) (_swap_u64(value))
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#define ENDIAN_HOST_TO_BIG_U64(value) (_swap_u64(value))
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#define ENDIAN_BIG_TO_HOST_S64(value) (_swap_s64(value))
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#define ENDIAN_HOST_TO_BIG_S64(value) (_swap_s64(value))
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/* no-ops */
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#define ENDIAN_LITTLE_TO_HOST_U16(value) (value)
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#define ENDIAN_HOST_TO_LITTLE_U16(value) (value)
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#define ENDIAN_LITTLE_TO_HOST_S16(value) (value)
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#define ENDIAN_HOST_TO_LITTLE_S16(value) (value)
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#define ENDIAN_LITTLE_TO_HOST_U32(value) (value)
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#define ENDIAN_HOST_TO_LITTLE_U32(value) (value)
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#define ENDIAN_LITTLE_TO_HOST_S32(value) (value)
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#define ENDIAN_HOST_TO_LITTLE_S32(value) (value)
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#define ENDIAN_LITTLE_TO_HOST_U64(value) (value)
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#define ENDIAN_HOST_TO_LITTLE_U64(value) (value)
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#define ENDIAN_LITTLE_TO_HOST_S64(value) (value)
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#define ENDIAN_HOST_TO_LITTLE_S64(value) (value)
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#elif defined(__BIG_ENDIAN__)
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/* big endian host */
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#define ENDIAN_LITTLE_TO_HOST_U16(value) (_swap_u16(value))
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#define ENDIAN_HOST_TO_LITTLE_U16(value) (_swap_u16(value))
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#define ENDIAN_LITTLE_TO_HOST_S16(value) (_swap_s16(value))
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#define ENDIAN_HOST_TO_LITTLE_S16(value) (_swap_s16(value))
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#define ENDIAN_LITTLE_TO_HOST_U32(value) (_swap_u32(value))
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#define ENDIAN_HOST_TO_LITTLE_U32(value) (_swap_u32(value))
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#define ENDIAN_LITTLE_TO_HOST_S32(value) (_swap_s32(value))
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#define ENDIAN_HOST_TO_LITTLE_S32(value) (_swap_s32(value))
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#define ENDIAN_LITTLE_TO_HOST_U64(value) (_swap_u64(value))
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#define ENDIAN_HOST_TO_LITTLE_U64(value) (_swap_u64(value))
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#define ENDIAN_LITTLE_TO_HOST_S64(value) (_swap_s64(value))
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#define ENDIAN_HOST_TO_LITTLE_S64(value) (_swap_s64(value))
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/* no-ops */
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#define ENDIAN_BIG_TO_HOST_U16(value) (value)
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#define ENDIAN_HOST_TO_BIG_U16(value) (value)
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#define ENDIAN_BIG_TO_HOST_S16(value) (value)
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#define ENDIAN_HOST_TO_BIG_S16(value) (value)
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#define ENDIAN_BIG_TO_HOST_U32(value) (value)
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#define ENDIAN_HOST_TO_BIG_U32(value) (value)
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#define ENDIAN_BIG_TO_HOST_S32(value) (value)
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#define ENDIAN_HOST_TO_BIG_S32(value) (value)
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#define ENDIAN_BIG_TO_HOST_U64(value) (value)
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#define ENDIAN_HOST_TO_BIG_U64(value) (value)
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#define ENDIAN_BIG_TO_HOST_S64(value) (value)
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#define ENDIAN_HOST_TO_BIG_S64(value) (value)
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#endif
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#endif // _EndianUtilities_h_
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