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endian.h
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endian.h
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/* endian.h - host endian probe interfaces */
/* SimpleScalar(TM) Tool Suite
* Copyright (C) 1994-2003 by Todd M. Austin, Ph.D. and SimpleScalar, LLC.
* All Rights Reserved.
*
* THIS IS A LEGAL DOCUMENT, BY USING SIMPLESCALAR,
* YOU ARE AGREEING TO THESE TERMS AND CONDITIONS.
*
* No portion of this work may be used by any commercial entity, or for any
* commercial purpose, without the prior, written permission of SimpleScalar,
* LLC ([email protected]). Nonprofit and noncommercial use is permitted
* as described below.
*
* 1. SimpleScalar is provided AS IS, with no warranty of any kind, express
* or implied. The user of the program accepts full responsibility for the
* application of the program and the use of any results.
*
* 2. Nonprofit and noncommercial use is encouraged. SimpleScalar may be
* downloaded, compiled, executed, copied, and modified solely for nonprofit,
* educational, noncommercial research, and noncommercial scholarship
* purposes provided that this notice in its entirety accompanies all copies.
* Copies of the modified software can be delivered to persons who use it
* solely for nonprofit, educational, noncommercial research, and
* noncommercial scholarship purposes provided that this notice in its
* entirety accompanies all copies.
*
* 3. ALL COMMERCIAL USE, AND ALL USE BY FOR PROFIT ENTITIES, IS EXPRESSLY
* PROHIBITED WITHOUT A LICENSE FROM SIMPLESCALAR, LLC ([email protected]).
*
* 4. No nonprofit user may place any restrictions on the use of this software,
* including as modified by the user, by any other authorized user.
*
* 5. Noncommercial and nonprofit users may distribute copies of SimpleScalar
* in compiled or executable form as set forth in Section 2, provided that
* either: (A) it is accompanied by the corresponding machine-readable source
* code, or (B) it is accompanied by a written offer, with no time limit, to
* give anyone a machine-readable copy of the corresponding source code in
* return for reimbursement of the cost of distribution. This written offer
* must permit verbatim duplication by anyone, or (C) it is distributed by
* someone who received only the executable form, and is accompanied by a
* copy of the written offer of source code.
*
* 6. SimpleScalar was developed by Todd M. Austin, Ph.D. The tool suite is
* currently maintained by SimpleScalar LLC ([email protected]). US Mail:
* 2395 Timbercrest Court, Ann Arbor, MI 48105.
*
* Copyright (C) 1994-2003 by Todd M. Austin, Ph.D. and SimpleScalar, LLC.
*/
#ifndef ENDIAN_H
#define ENDIAN_H
/* data swapping functions, from big/little to little/big endian format */
#define SWAP_HALF(X) \
(((((half_t)(X)) & 0xff) << 8) | ((((half_t)(X)) & 0xff00) >> 8))
#define SWAP_WORD(X) (((word_t)(X) << 24) | \
(((word_t)(X) << 8) & 0x00ff0000) | \
(((word_t)(X) >> 8) & 0x0000ff00) | \
(((word_t)(X) >> 24) & 0x000000ff))
#define SWAP_QWORD(X) (((qword_t)(X) << 56) | \
(((qword_t)(X) << 40) & ULL(0x00ff000000000000)) |\
(((qword_t)(X) << 24) & ULL(0x0000ff0000000000)) |\
(((qword_t)(X) << 8) & ULL(0x000000ff00000000)) |\
(((qword_t)(X) >> 8) & ULL(0x00000000ff000000)) |\
(((qword_t)(X) >> 24) & ULL(0x0000000000ff0000)) |\
(((qword_t)(X) >> 40) & ULL(0x000000000000ff00)) |\
(((qword_t)(X) >> 56) & ULL(0x00000000000000ff)))
/* recognized endian formats */
enum endian_t { endian_big, endian_little, endian_unknown};
/* probe host (simulator) byte endian format */
enum endian_t
endian_host_byte_order(void);
/* probe host (simulator) double word endian format */
enum endian_t
endian_host_word_order(void);
#ifndef HOST_ONLY
/* probe target (simulated program) byte endian format, only
valid after program has been loaded */
enum endian_t
endian_target_byte_order(void);
/* probe target (simulated program) double word endian format,
only valid after program has been loaded */
enum endian_t
endian_target_word_order(void);
#endif /* HOST_ONLY */
#endif /* ENDIAN_H */