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/***
*cruntime.h - definitions specific to the target operating system and
* hardware
*
* Copyright (c) 1990-1993, Microsoft Corporation. All rights reserved.
*
*Purpose:
* This header file contains widely used definitions specific to the
* host operating system and hardware. It is included by every C source
* and most every other header file.
* [Internal]
*
*Revision History:
* 02-27-90 GJF File created
* 03-06-90 GJF Added register macros (REG1,...,etc.)
* 04-11-90 GJF Set _CALLTYPE1 and _CALLTYPE4 to _stdcall.
* 10-30-90 GJF Added macros defining variable args interface.
* 10-31-90 GJF Added definition of _JBLEN (from setjmp.h).
* 11-13-90 GJF Revised #ifdef-s, now use symbolic constants
* representing target OS and target processor, with
* #error directives for unsupported targets. Note the
* general grouping of only OS-dependent definitions
* followed by OS and processor dependent definitions.
* 02-25-91 SRW Move _JBLEN definition back to setjmp.h [_WIN32_]
* 04-09-91 PNT Added _MAC_ definitions
* 05-09-91 GJF Restored _JBLEN definitions. Also fixed the macros
* defining the target processor so both Stevewo's stuff
* and mine would work.
* 05-13-91 GJF Changed _CALLTYPE1 and _CALLTYPE4 to _cdecl for
* Cruiser (_CRUISER_).
* 08-28-91 JCR ANSI keywords
* 11-01-91 GDP _JBLEN back to setjmp.h, stdarg macros back to stdarg.h
* 03-30-92 DJM POSIX support.
* 08-07-92 GJF Revised various macros.
* 09-08-92 GJF Restored definition of _MIPS_ (temporarily).
* 11-09-92 GJF Revised preprocessing conditionals for MIPS.
* 01-09-93 SRW Remove usage of MIPS and ALPHA to conform to ANSI
* Use _MIPS_ and _ALPHA_ instead.
* 02-01-93 GJF Removed support for C6-386.
*
****/
#ifndef _INC_CRUNTIME
/*
* Some CRT sources have code conditioned on _MIPS_. Continue to define
* _MIPS_ when MIPS is defined until these sources are fixed.
*/
#if defined(MIPS) && !defined(_MIPS_)
#define _MIPS_
#endif
#if defined(_M_MRX000) || defined(_M_ALPHA) || defined(_M_PPC)
#define UNALIGNED __unaligned
#else
#define UNALIGNED
#endif
/*
* Conditional macro definition for function calling type and variable type
* qualifiers.
*/
#if ( (_MSC_VER >= 800) && (_M_IX86 >= 300) )
/*
* Definitions for MS C8-32 (386/486) compiler
*/
#define _CRTAPI1 __cdecl /* User-visible CRT function */
#define _CRTAPI2 __cdecl /* User-visible CRT function */
#define _CRTAPI3 __cdecl /* Internal CRT function */
#define _CRTVAR1 /* C global variable */
#else
/*
* Other compilers (e.g., MIPS)
*/
#define _CRTAPI1
#define _CRTAPI2
#define _CRTAPI3
#define _CRTVAR1
#endif
/*
* Old function calling type and variable type qualifier macros
*/
#define _CALLTYPE1 _CRTAPI1
#define _CALLTYPE2 _CRTAPI2
#define _CALLTYPE4 _CRTAPI3
#define _VARTYPE1 _CRTVAR1
#ifdef _CRUISER_
/*
* DEFINITIONS FOR CRUISER (AKA OS/2 2.0).
*/
#define _CALLTYPE3 __syscall /* OS API functions */
/*
* Macros for register variable declarations
*/
#define REG1 register
#define REG2 register
#define REG3 register
#define REG4
#define REG5
#define REG6
#define REG7
#define REG8
#define REG9
/*
* Macros for varargs support
*/
#define _VA_LIST_T char *
#else /* ndef _CRUISER_ */
#ifdef _WIN32_
/*
* DEFINITIONS FOR WIN32
*/
#ifdef _ALPHA_
#define _VA_LIST_T \
struct { \
char *a0; /* pointer to first homed integer argument */ \
int offset; /* byte offset of next parameter */ \
}
#else
#define _VA_LIST_T char *
#endif
#if defined(_M_IX86)
/*
* 386/486
*/
#define REG1 register
#define REG2 register
#define REG3 register
#define REG4
#define REG5
#define REG6
#define REG7
#define REG8
#define REG9
#elif defined(_M_MRX000) || defined(_M_ALPHA) || defined(_M_PPC)
/*
* MIPS or ALPHA
*/
#define REG1 register
#define REG2 register
#define REG3 register
#define REG4 register
#define REG5 register
#define REG6 register
#define REG7 register
#define REG8 register
#define REG9 register
#else
#error ERROR - SUPPORT FOR WIN32 NT-X86, NT-MIPS, NT-ALPHA, AND NT-PPC ONLY
#endif
#else /* ndef _WIN32_ */
#ifdef _POSIX_
/*
* DEFINITIONS FOR POSIX
*/
#ifdef _ALPHA_
#define _VA_LIST_T \
struct { \
char *a0; /* pointer to first homed integer argument */ \
int offset; /* byte offset of next parameter */ \
}
#else
#define _VA_LIST_T char *
#define _INTSIZEOF(n) ( (sizeof(n) + sizeof(int) - 1) & ~(sizeof(int) - 1) )
#define _VA_START(ap,v) ap = (va_list)&v + _INTSIZEOF(v)
#define _VA_ARG(ap,t) ( *(t *)((ap += _INTSIZEOF(t)) - _INTSIZEOF(t)) )
#define _VA_END(ap) ap = (va_list)0
#endif
#if defined(_M_IX86)
/*
* 386/486
*/
#define REG1 register
#define REG2 register
#define REG3 register
#define REG4
#define REG5
#define REG6
#define REG7
#define REG8
#define REG9
#elif defined(_M_MRX000) || defined(_M_ALPHA) || defined(_M_PPC)
/*
* MIPS/Alpha/PPC
*/
#define REG1 register
#define REG2 register
#define REG3 register
#define REG4 register
#define REG5 register
#define REG6 register
#define REG7 register
#define REG8 register
#define REG9 register
#else
#error ERROR - SUPPORT FOR POSIX NT-X86, NT-MIPS, NT-ALPHA, AND NT_PPC ONLY
#endif
#else /* ndef _POSIX_ */
#ifdef _MAC_
/*
* DEFINITIONS FOR MAC.
*/
/*
* Macros for register variable declarations
*/
#define REG1
#define REG2
#define REG3
#define REG4
#define REG5
#define REG6
#define REG7
#define REG8
#define REG9
/*
* Macros for varargs support
*/
#define _VA_LIST_T char *
#else /* ndef _MAC_ */
#error ERROR - ONLY CRUISER, WIN32, OR MAC TARGET SUPPORTED!
#endif /* _MAC_ */
#endif /* _WIN32_ */
#endif /* _POSIX_ */
#endif /* _CRUISER_ */
#define _INC_CRUNTIME
#endif /* _INC_CRUNTIME */
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