148 lines
4.7 KiB
C
148 lines
4.7 KiB
C
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/***
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*cruntime.h - definitions specific to the target operating system and hardware
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*
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* Copyright (c) 1990-2001, Microsoft Corporation. All rights reserved.
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*
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*Purpose:
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* This header file contains widely used definitions specific to the
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* host operating system and hardware. It is included by every C source
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* and most every other header file.
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*
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* [Internal]
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*
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*Revision History:
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* 02-27-90 GJF File created
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* 03-06-90 GJF Added register macros (REG1,...,etc.)
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* 04-11-90 GJF Set _CALLTYPE1 and _CALLTYPE4 to _stdcall.
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* 10-30-90 GJF Added macros defining variable args interface.
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* 10-31-90 GJF Added definition of _JBLEN (from setjmp.h).
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* 11-13-90 GJF Revised #ifdef-s, now use symbolic constants
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* representing target OS and target processor, with
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* #error directives for unsupported targets. Note the
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* general grouping of only OS-dependent definitions
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* followed by OS and processor dependent definitions.
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* 02-25-91 SRW Move _JBLEN definition back to setjmp.h [_WIN32_]
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* 04-09-91 PNT Added _MAC_ definitions
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* 05-09-91 GJF Restored _JBLEN definitions. Also fixed the macros
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* defining the target processor so both Stevewo's stuff
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* and mine would work.
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* 05-13-91 GJF Changed _CALLTYPE1 and _CALLTYPE4 to _cdecl for
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* Cruiser (_CRUISER_).
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* 08-28-91 JCR ANSI keywords
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* 11-01-91 GDP _JBLEN back to setjmp.h, stdarg macros back to stdarg.h
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* 03-30-92 DJM POSIX support.
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* 08-07-92 GJF Revised various macros.
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* 09-08-92 GJF Restored definition of _MIPS_ (temporarily).
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* 11-09-92 GJF Revised preprocessing conditionals for MIPS.
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* 01-09-93 SRW Remove usage of MIPS and ALPHA to conform to ANSI
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* Use _MIPS_ and _ALPHA_ instead.
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* 02-01-93 GJF Removed support for C6-386.
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* 04-06-93 SKS Remove support for OS/2, MAC, POSIX, MIPS, etc.
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* 11-11-93 GJF Merged in NT SDK version. Note that having
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* definitions for the variable-argument access macros
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* in this file is probably obsolete - this needs to be
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* checked.
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* 10-02-94 BWT Add PPC support.
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* 10-09-94 BWT Unknown platform changes from John Morgan.
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* 12-15-94 XY merged with mac header
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* 02-14-95 CFW Clean up Mac merge.
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* 03-29-95 CFW Add error message to internal headers.
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* 12-14-95 JWM Add "#pragma once".
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* 02-24-97 GJF Detab-ed.
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* 10-07-97 RDL Added IA64.
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* 05-17-99 PML Remove all Macintosh support.
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* 11-03-99 PML Remove _VA_LIST_T
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* 03-18-01 PML Define _USE_OLD_STDCPP when compiling with stdcpp64
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* and stdhpp64, for the Win64 system CRTs.
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*
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****/
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#if _MSC_VER > 1000 /*IFSTRIP=IGN*/
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#pragma once
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#endif
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#ifndef _INC_CRUNTIME
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#define _INC_CRUNTIME
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#ifndef _CRTBLD
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/*
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* This is an internal C runtime header file. It is used when building
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* the C runtimes only. It is not to be used as a public header file.
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*/
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#error ERROR: Use of C runtime library internal header file.
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#endif /* _CRTBLD */
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#if defined(_SYSCRT) && defined(_WIN64)
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#define _USE_OLD_STDCPP 1
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#endif
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#if defined(_AMD64_) || defined(_M_MRX000) || defined(_M_ALPHA) || defined(_M_PPC) || defined(_M_IA64)
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#define UNALIGNED __unaligned
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#else
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#define UNALIGNED
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#endif
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#ifdef _M_IX86
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/*
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* 386/486
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*/
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#define REG1 register
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#define REG2 register
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#define REG3 register
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#define REG4
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#define REG5
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#define REG6
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#define REG7
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#define REG8
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#define REG9
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#elif ( defined(_M_AMD64) || defined(_M_MRX000) || defined(_M_ALPHA) || defined(_M_PPC) || defined(_M_IA64) )
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/*
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* MIPS, ALPHA, or PPC
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*/
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#define REG1 register
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#define REG2 register
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#define REG3 register
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#define REG4 register
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#define REG5 register
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#define REG6 register
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#define REG7 register
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#define REG8 register
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#define REG9 register
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#else
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#pragma message ("Machine register set not defined")
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/*
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* Unknown machine
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*/
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#define REG1
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#define REG2
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#define REG3
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#define REG4
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#define REG5
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#define REG6
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#define REG7
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#define REG8
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#define REG9
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#endif
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/*
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* Are the macro definitions below still needed in this file? Are they even
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* correct for MIPS (probably not).
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*/
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#if defined(_POSIX_) && !defined(_M_ALPHA)
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#define _INTSIZEOF(n) ( (sizeof(n) + sizeof(int) - 1) & ~(sizeof(int) - 1) )
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#define _VA_START(ap,v) ap = (va_list)&v + _INTSIZEOF(v)
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#define _VA_ARG(ap,t) ( *(t *)((ap += _INTSIZEOF(t)) - _INTSIZEOF(t)) )
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#define _VA_END(ap) ap = (va_list)0
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#endif
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#endif /* _INC_CRUNTIME */
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