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58 lines
2.2 KiB
C
58 lines
2.2 KiB
C
/* fmthe.h: HEADERS FOR DYLAN-LIKE OBJECT FORMATS
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*
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* $Id$
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* Copyright (c) 2001-2020 Ravenbrook Limited. See end of file for license.
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* Portions copyright (C) 2002 Global Graphics Software.
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*/
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#ifndef fmthe_h
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#define fmthe_h
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#include "mps.h"
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/* Formats */
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extern mps_res_t EnsureHeaderFormat(mps_fmt_t *, mps_arena_t);
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extern mps_res_t EnsureHeaderWeakFormat(mps_fmt_t *, mps_arena_t);
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extern mps_res_t HeaderFormatCheck(mps_addr_t addr);
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extern mps_res_t HeaderWeakFormatCheck(mps_addr_t addr);
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#define headerSIZE (32)
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#define headerTypeBits 8
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#define realTYPE 0x33
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#define realHeader (realTYPE + 0x12345600)
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#define padTYPE 0xaa
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#define headerType(header) ((header) & (((mps_word_t)1 << headerTypeBits) - 1))
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#define headerPadSize(header) ((header) >> headerTypeBits)
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#define padHeader(size) ((size << headerTypeBits) | padTYPE)
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#endif /* fmthe_h */
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/* C. COPYRIGHT AND LICENSE
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*
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* Copyright (C) 2001-2020 Ravenbrook Limited <https://www.ravenbrook.com/>.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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