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