/* fmthe.h: HEADERS FOR DYLAN-LIKE OBJECT FORMATS
*
* $Id: //info.ravenbrook.com/project/mps/master/code/fmthe.h#19 $
* Copyright (c) 2001-2020 Ravenbrook Limited. See end of file for license.
* Portions copyright (C) 2002 Global Graphics Software.
*/
#ifndef fmthe_h
#define fmthe_h
#include "mps.h"
/* Formats */
extern mps_res_t EnsureHeaderFormat(mps_fmt_t *, mps_arena_t);
extern mps_res_t EnsureHeaderWeakFormat(mps_fmt_t *, mps_arena_t);
extern mps_res_t HeaderFormatCheck(mps_addr_t addr);
extern mps_res_t HeaderWeakFormatCheck(mps_addr_t addr);
#define headerSIZE (32)
#define headerTypeBits 8
#define realTYPE 0x33
#define realHeader (realTYPE + 0x12345600)
#define padTYPE 0xaa
#define headerType(header) ((header) & (((mps_word_t)1 << headerTypeBits) - 1))
#define headerPadSize(header) ((header) >> headerTypeBits)
#define padHeader(size) ((size << headerTypeBits) | padTYPE)
#endif /* fmthe_h */
/* C. COPYRIGHT AND LICENSE
*
* Copyright (C) 2001-2020 Ravenbrook Limited <https://www.ravenbrook.com/>.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/