e321f10fae
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@1121 6ac86273-5f31-0410-b378-82cca8765d1b
326 lines
11 KiB
C
326 lines
11 KiB
C
/****************************************************************/
|
|
/* */
|
|
/* 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 =
|
|
"$Id$";
|
|
#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__) /* don't know a better way */
|
|
|
|
#define I86
|
|
#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)
|
|
#define I386
|
|
#endif
|
|
|
|
#elif defined (_MYMC68K_COMILER_)
|
|
|
|
#define MC68K
|
|
|
|
#elif defined(__GNUC__)
|
|
/* for warnings only ! */
|
|
#define MC68K
|
|
|
|
#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)
|
|
#define I386
|
|
#elif _M_IX86 >= 100 || defined(M_I286)
|
|
#define I186
|
|
#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
|
|
typedef unsigned size_t;
|
|
#endif
|
|
#endif
|
|
#ifdef I86
|
|
#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
|
|
#define ASM ASMCFUNC
|
|
/* */
|
|
/* 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__)
|
|
#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
|
|
|
|
#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
|
|
|
|
#define FP_OFF(fp) ((unsigned)(fp))
|
|
|
|
#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
|
|
|
|
typedef VOID (FAR ASMCFUNC * intvec) (void);
|
|
|
|
#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]))
|