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/********************************************************************************/
/* */
/* */
/* Written by Ken Goldman */
/* IBM Thomas J. Watson Research Center */
/* $Id: swap.h 819 2016-11-16 23:25:56Z kgoldman $ */
/* */
/* Licenses and Notices */
/* */
/* 1. Copyright Licenses: */
/* */
/* - Trusted Computing Group (TCG) grants to the user of the source code in */
/* this specification (the "Source Code") a worldwide, irrevocable, */
/* nonexclusive, royalty free, copyright license to reproduce, create */
/* derivative works, distribute, display and perform the Source Code and */
/* derivative works thereof, and to grant others the rights granted herein. */
/* */
/* - The TCG grants to the user of the other parts of the specification */
/* (other than the Source Code) the rights to reproduce, distribute, */
/* display, and perform the specification solely for the purpose of */
/* developing products based on such documents. */
/* */
/* 2. Source Code Distribution Conditions: */
/* */
/* - Redistributions of Source Code must retain the above copyright licenses, */
/* this list of conditions and the following disclaimers. */
/* */
/* - Redistributions in binary form must reproduce the above copyright */
/* licenses, this list of conditions and the following disclaimers in the */
/* documentation and/or other materials provided with the distribution. */
/* */
/* 3. Disclaimers: */
/* */
/* - THE COPYRIGHT LICENSES SET FORTH ABOVE DO NOT REPRESENT ANY FORM OF */
/* LICENSE OR WAIVER, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE, WITH */
/* RESPECT TO PATENT RIGHTS HELD BY TCG MEMBERS (OR OTHER THIRD PARTIES) */
/* THAT MAY BE NECESSARY TO IMPLEMENT THIS SPECIFICATION OR OTHERWISE. */
/* Contact TCG Administration (admin@trustedcomputinggroup.org) for */
/* information on specification licensing rights available through TCG */
/* membership agreements. */
/* */
/* - THIS SPECIFICATION IS PROVIDED "AS IS" WITH NO EXPRESS OR IMPLIED */
/* WARRANTIES WHATSOEVER, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR */
/* FITNESS FOR A PARTICULAR PURPOSE, ACCURACY, COMPLETENESS, OR */
/* NONINFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS, OR ANY WARRANTY */
/* OTHERWISE ARISING OUT OF ANY PROPOSAL, SPECIFICATION OR SAMPLE. */
/* */
/* - Without limitation, TCG and its members and licensors disclaim all */
/* liability, including liability for infringement of any proprietary */
/* rights, relating to use of information in this specification and to the */
/* implementation of this specification, and TCG disclaims all liability for */
/* cost of procurement of substitute goods or services, lost profits, loss */
/* of use, loss of data or any incidental, consequential, direct, indirect, */
/* or special damages, whether under contract, tort, warranty or otherwise, */
/* arising in any way out of use or reliance upon this specification or any */
/* information herein. */
/* */
/* (c) Copyright IBM Corp. and others, 2012-2015 */
/* */
/********************************************************************************/
/* rev 119 */
// 5.10 swap.h
#ifndef _SWAP_H
#define _SWAP_H
#include <tss2/Implementation.h>
#if NO_AUTO_ALIGN == YES || LITTLE_ENDIAN_TPM == YES
// The aggregation macros for machines that do not allow unaligned access or for little-endian
// machines. Aggregate bytes into an UINT
#define BYTE_ARRAY_TO_UINT8(b) (UINT8)((b)[0])
#define BYTE_ARRAY_TO_UINT16(b) (UINT16)( ((b)[0] << 8) \
+ (b)[1])
#define BYTE_ARRAY_TO_UINT32(b) (UINT32)( ((b)[0] << 24) \
+ ((b)[1] << 16) \
+ ((b)[2] << 8 ) \
+ (b)[3])
#define BYTE_ARRAY_TO_UINT64(b) (UINT64)( ((UINT64)(b)[0] << 56) \
+ ((UINT64)(b)[1] << 48) \
+ ((UINT64)(b)[2] << 40) \
+ ((UINT64)(b)[3] << 32) \
+ ((UINT64)(b)[4] << 24) \
+ ((UINT64)(b)[5] << 16) \
+ ((UINT64)(b)[6] << 8) \
+ (UINT64)(b)[7])
// Disaggregate a UINT into a byte array
#define UINT8_TO_BYTE_ARRAY(i, b) ((b)[0] = (BYTE)(i))
#define UINT16_TO_BYTE_ARRAY(i, b) ((b)[0] = (BYTE)((i) >> 8), \
(b)[1] = (BYTE) (i) \
)
#define UINT32_TO_BYTE_ARRAY(i, b) ((b)[0] = (BYTE)((i) >> 24), \
(b)[1] = (BYTE)((i) >> 16), \
(b)[2] = (BYTE)((i) >> 8), \
(b)[3] = (BYTE) (i) \
)
#define UINT64_TO_BYTE_ARRAY(i, b) ((b)[0] = (BYTE)((i) >> 56), \
(b)[1] = (BYTE)((i) >> 48), \
(b)[2] = (BYTE)((i) >> 40), \
(b)[3] = (BYTE)((i) >> 32), \
(b)[4] = (BYTE)((i) >> 24), \
(b)[5] = (BYTE)((i) >> 16), \
(b)[6] = (BYTE)((i) >> 8), \
(b)[7] = (BYTE) (i) \
)
#else
// the big-endian macros for machines that allow unaligned memory access Aggregate a byte array into a UINT
#define BYTE_ARRAY_TO_UINT8(b) *((UINT8 *)(b))
#define BYTE_ARRAY_TO_UINT16(b) *((UINT16 *)(b))
#define BYTE_ARRAY_TO_UINT32(b) *((UINT32 *)(b))
#define BYTE_ARRAY_TO_UINT64(b) *((UINT64 *)(b))
// Disaggregate a UINT into a byte array
#define UINT8_TO_BYTE_ARRAY(i, b) (*((UINT8 *)(b)) = (i))
#define UINT16_TO_BYTE_ARRAY(i, b) (*((UINT16 *)(b)) = (i))
#define UINT32_TO_BYTE_ARRAY(i, b) (*((UINT32 *)(b)) = (i))
#define UINT64_TO_BYTE_ARRAY(i, b) (*((UINT64 *)(b)) = (i))
#endif // NO_AUTO_ALIGN == YES
#endif // _SWAP_H
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