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kernel/hdr/portab.h

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/****************************************************************/
/* */
/* portab.h */
/* */
/* DOS-C portability typedefs, etc. */
/* */
/* May 1, 1995 */
/* */
/* Copyright (c) 1995 */
/* Pasquale J. Villani */
/* All Rights Reserved */
/* */
/* This file is part of DOS-C. */
/* */
/* DOS-C is free software; you can redistribute it and/or */
/* modify it under the terms of the GNU General Public License */
/* as published by the Free Software Foundation; either version */
/* 2, or (at your option) any later version. */
/* */
/* DOS-C is distributed in the hope that it will be useful, but */
/* WITHOUT ANY WARRANTY; without even the implied warranty of */
/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See */
/* the GNU General Public License for more details. */
/* */
/* You should have received a copy of the GNU General Public */
/* License along with DOS-C; see the file COPYING. If not, */
/* write to the Free Software Foundation, 675 Mass Ave, */
/* Cambridge, MA 02139, USA. */
/****************************************************************/
#ifdef MAIN
#ifdef VERSION_STRINGS
static char *portab_hRcsId =
"$Id: portab.h 1121 2005-03-15 15:25:08Z perditionc $";
#endif
#endif
/****************************************************************/
/* */
/* Machine dependant portable types. Note that this section is */
/* used primarily for segmented architectures. Common types and */
/* types used relating to segmented operations are found here. */
/* */
/* Be aware that segmented architectures impose on linear */
/* architectures because they require special types to be used */
/* throught the code that must be reduced to empty preprocessor */
/* replacements in the linear machine. */
/* */
/* #ifdef <segmeted machine> */
/* # define FAR far */
/* # define NEAR near */
/* #endif */
/* */
/* #ifdef <linear machine> */
/* # define FAR */
/* # define NEAR */
/* #endif */
/* */
/****************************************************************/
/* commandline overflow - removing -DI86 TE */
#if defined(__TURBOC__)
#define I86
#define CDECL cdecl
#if __TURBOC__ > 0x202
/* printf callers do the right thing for tc++ 1.01 but not tc 2.01 */
#define VA_CDECL
#else
#define VA_CDECL cdecl
#endif
#define PASCAL pascal
void __int__(int);
#ifndef FORSYS
void __emit__(char, ...);
#define disable() __emit__(0xfa)
#define enable() __emit__(0xfb)
#endif
#elif defined (_MSC_VER)
#define I86
#define asm __asm
#pragma warning(disable: 4761) /* "integral size mismatch in argument;
conversion supplied" */
#define CDECL _cdecl
#define VA_CDECL
#define PASCAL pascal
#define __int__(intno) asm int intno;
#define disable() asm cli
#define enable() asm sti
#define _CS getCS()
static unsigned short __inline getCS(void)
{
asm mov ax, cs;
}
#define _SS getSS()
static unsigned short __inline getSS(void)
{
asm mov ax, ss;
}
#elif defined(__WATCOMC__) && defined(BUILD_UTILS)
/* workaround for building some utils with OpenWatcom (owcc) */
#define MC68K
#elif defined(__WATCOMC__) /* don't know a better way */
#if defined(_M_I86)
#define I86
#endif
#define __int__(intno) asm int intno;
void disable(void);
#pragma aux disable = "cli" modify exact [];
void enable(void);
#pragma aux enable = "sti" modify exact [];
#define asm __asm
#define far __far
#define CDECL __cdecl
#define VA_CDECL
#define PASCAL pascal
#define _CS getCS()
unsigned short getCS(void);
#pragma aux getCS = "mov dx,cs" value [dx] modify exact[dx];
#define _SS getSS()
unsigned short getSS(void);
#pragma aux getSS = "mov dx,ss" value [dx] modify exact[dx];
#if !defined(FORSYS) && !defined(EXEFLAT) && _M_IX86 >= 300
#pragma aux default parm [ax dx cx] modify [ax dx es fs] /* min.unpacked size */
#endif
/* enable Possible loss of precision warning for compatibility with Borland */
#pragma enable_message(130)
#if _M_IX86 >= 300 || defined(M_I386)
#ifndef I386
#define I386
#endif
#endif
#elif defined (_MYMC68K_COMILER_)
#define MC68K
#elif defined(__GNUC__)
#ifdef __FAR
#define I86
#define STRINGIFY(x) #x
#define __int__(intno) asm volatile(STRINGIFY(int $##intno))
static inline void disable(void)
{
asm volatile("cli");
}
static inline void enable(void)
{
asm volatile("sti");
}
#define far __far
#define CDECL __attribute__((cdecl))
#define VA_CDECL
#define PASCAL
#define _CS getCS()
static inline unsigned short getCS(void)
{
unsigned short ret;
asm volatile("mov %%cs, %0" : "=r"(ret));
return ret;
}
#define _SS getSS()
static inline unsigned short getSS(void)
{
unsigned short ret;
asm volatile("mov %%ss, %0" : "=r"(ret));
return ret;
}
extern char DosDataSeg[];
#else
/* for warnings only ! */
#define MC68K
#endif
#else
#error Unknown compiler
We might even deal with a pre-ANSI compiler. This will certainly not compile.
#endif
#ifdef I86
#if _M_IX86 >= 300 || defined(M_I386)
#ifndef I386
#define I386
#endif
#elif _M_IX86 >= 100 || defined(M_I286)
#ifndef I186
#define I186
#endif
#endif
#endif
#ifdef MC68K
#define far /* No far type */
#define interrupt /* No interrupt type */
#define VOID void
#define FAR /* linear architecture */
#define NEAR /* " " */
#define INRPT interrupt
#define REG register
#define API int /* linear architecture */
#define NONNATIVE
#define PARASIZE 4096 /* "paragraph" size */
#define CDECL
#define PASCAL
#ifdef __GNUC__
#define CONST const
#define PROTO
typedef __SIZE_TYPE__ size_t;
#else
#define CONST
#if !(defined(_SIZE_T) || defined(_SIZE_T_DEFINED) || defined(__SIZE_T_DEFINED))
typedef unsigned size_t;
#endif
#endif
#endif
#if defined(I86) && !defined(MC68K)
#define VOID void
#define FAR far /* segment architecture */
#define NEAR near /* " " */
#define INRPT interrupt
#define CONST const
#define REG register
#define API int far pascal /* segment architecture */
#define NATIVE
#define PARASIZE 16 /* "paragraph" size */
typedef unsigned size_t;
#endif
/* functions, that are shared between C and ASM _must_
have a certain calling standard. These are declared
as 'ASMCFUNC', and is (and will be ?-) cdecl */
#define ASMCFUNC CDECL
#define ASMPASCAL PASCAL
#if defined(__GNUC__)
#define ASM
#else
#define ASM ASMCFUNC
#endif
/* variables that can be near or far: redefined in init-dat.h */
#define DOSFAR
#define DOSTEXTFAR
/* */
/* Boolean type & definitions of TRUE and FALSE boolean values */
/* */
typedef int BOOL;
#define FALSE (1==0)
#define TRUE (1==1)
/* */
/* Common pointer types */
/* */
#ifndef NULL
#define NULL 0
#endif
/* */
/* Convienence defines */
/* */
#define FOREVER while(TRUE)
#ifndef max
#define max(a,b) (((a) > (b)) ? (a) : (b))
#endif
#ifndef min
#define min(a,b) (((a) < (b)) ? (a) : (b))
#endif
/* */
/* Common byte, 16 bit and 32 bit types */
/* */
typedef char BYTE;
typedef short WORD;
typedef long DWORD;
typedef unsigned char UBYTE;
typedef unsigned short UWORD;
typedef unsigned long UDWORD;
typedef short SHORT;
typedef unsigned int BITS; /* for use in bit fields(!) */
typedef int COUNT;
typedef unsigned int UCOUNT;
typedef unsigned long ULONG;
#ifdef WITHFAT32
typedef unsigned long CLUSTER;
#else
typedef unsigned short CLUSTER;
#endif
typedef unsigned short UNICODE;
#if defined(STATICS) || defined(__WATCOMC__) || defined(__GNUC__)
#define STATIC static /* local calls inside module */
#else
#define STATIC
#endif
#ifdef UNIX
typedef char FAR *ADDRESS;
#else
typedef void FAR *ADDRESS;
#endif
#ifdef STRICT
typedef signed long LONG;
#else
#define LONG long
#endif
#if USHRT_MAX == 0xFFFF
# define loword(v) ((unsigned short)(v))
#else
# define loword(v) (0xFFFF & (unsigned)(v))
#endif
#define hiword(v) loword ((v) >> 16u)
#define MK_UWORD(hib,lob) (((UWORD)(hib) << 8u) | (UBYTE)(lob))
#define MK_ULONG(hiw,low) (((ULONG)(hiw) << 16u) | (UWORD)(low))
/* General far pointer macros */
#ifdef I86
#ifndef MK_FP
#if defined(__WATCOMC__)
#define MK_FP(seg,ofs) (((UWORD)(seg)):>((VOID *)(ofs)))
#elif defined(__TURBOC__) && (__TURBOC__ > 0x202)
#define MK_FP(seg,ofs) ((void _seg *)(seg) + (void near *)(ofs))
#else
#define MK_FP(seg,ofs) ((void FAR *)(((ULONG)(seg)<<16)|(UWORD)(ofs)))
#endif
#define pokeb(seg, ofs, b) (*((unsigned char far *)MK_FP(seg,ofs)) = b)
#define poke(seg, ofs, w) (*((unsigned far *)MK_FP(seg,ofs)) = w)
#define pokew poke
#define pokel(seg, ofs, l) (*((unsigned long far *)MK_FP(seg,ofs)) = l)
#define peekb(seg, ofs) (*((unsigned char far *)MK_FP(seg,ofs)))
#define peek(seg, ofs) (*((unsigned far *)MK_FP(seg,ofs)))
#define peekw peek
#define peekl(seg, ofs) (*((unsigned long far *)MK_FP(seg,ofs)))
#if defined(__TURBOC__) && (__TURBOC__ > 0x202)
#define FP_SEG(fp) ((unsigned)(void _seg *)(void far *)(fp))
#else
#define FP_SEG(fp) ((unsigned)((ULONG)(VOID FAR *)(fp)>>16))
#endif
#if defined(__GNUC__) && defined(__BUILTIN_IA16_FP_OFF)
#define FP_OFF(fp) __builtin_ia16_FP_OFF(fp)
#else
#define FP_OFF(fp) ((unsigned)(fp))
#endif
#endif
#endif
#ifdef MC68K
#define MK_FP(seg,ofs) ((VOID *)(&(((BYTE *)(size_t)(seg))[(ofs)])))
#define FP_SEG(fp) (0)
#define FP_OFF(fp) ((size_t)(fp))
#endif
#if defined(__GNUC__) && defined(__FAR)
typedef VOID FAR *intvec;
#else
typedef VOID (FAR ASMCFUNC * intvec) (void);
#endif
#define MK_PTR(type,seg,ofs) ((type FAR*) MK_FP (seg, ofs))
#if __TURBOC__ > 0x202
# define MK_SEG_PTR(type,seg) ((type _seg*) (seg))
#else
# define _seg FAR
# define MK_SEG_PTR(type,seg) MK_PTR (type, seg, 0)
#endif
/*
this suppresses the warning
unreferenced parameter 'x'
and (hopefully) generates no code
*/
#define UNREFERENCED_PARAMETER(x) (void)x;
#ifdef I86 /* commandline overflow - removing /DPROTO TE */
#define PROTO
#endif
#define LENGTH(x) (sizeof(x)/sizeof(x[0]))
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