463 lines
18 KiB
C
463 lines
18 KiB
C
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/* Pawn Abstract Machine (for the Pawn language)
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*
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* Copyright (c) ITB CompuPhase, 1997-2005
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*
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* This software is provided "as-is", without any express or implied warranty.
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* In no event will the authors be held liable for any damages arising from
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* the use of this software.
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*
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* Permission is granted to anyone to use this software for any purpose,
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* including commercial applications, and to alter it and redistribute it
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* freely, subject to the following restrictions:
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*
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* 1. The origin of this software must not be misrepresented; you must not
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* claim that you wrote the original software. If you use this software in
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* a product, an acknowledgment in the product documentation would be
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* appreciated but is not required.
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* 2. Altered source versions must be plainly marked as such, and must not be
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* misrepresented as being the original software.
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* 3. This notice may not be removed or altered from any source distribution.
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*
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* Version: $Id: amx.h,v 1.5 2006/03/26 16:56:15 spookie Exp $
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*/
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#ifndef AMX_H_INCLUDED
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#define AMX_H_INCLUDED
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/* >>> yugecin: added these in so I can compile using the toolsets I use */
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#ifdef __MINGW32__
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#if !defined __STDC_VERSION__ || __STDC_VERSION__ < 199901L
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#define __need_size_t
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#include <stddef.h>
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#undef __need_size_t
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#else
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#define HAVE_STDINT_H
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#endif
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#elif defined __linux || defined __linux__
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#include <stdlib.h>
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#ifndef __BYTE_ORDER
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#include <endian.h>
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#endif
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#else
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#include <stddef.h>
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#endif
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/* <<< end */
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#if defined __linux || defined __linux__
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#define __LINUX__
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#endif
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#if defined FREEBSD && !defined __FreeBSD__
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#define __FreeBSD__
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#endif
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#if defined __LINUX__ || defined __FreeBSD__ || defined __OpenBSD__
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#include "sclinux.h"
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#endif
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#if defined HAVE_STDINT_H
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#include <stdint.h>
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#else
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#if defined __LCC__ || defined __DMC__ || defined __LINUX__ || (defined __WATCOMC__ && __WATCOMC__ >= 1200)
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#if defined HAVE_INTTYPES_H
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#include <inttypes.h>
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#else
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#include <stdint.h>
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#endif
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#elif !defined __STDC_VERSION__ || __STDC_VERSION__ < 199901L
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/* The ISO C99 defines the int16_t and int_32t types. If the compiler got
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* here, these types are probably undefined.
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*/
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#if defined __MACH__
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#include <ppc/types.h>
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typedef unsigned short int uint16_t;
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typedef unsigned long int uint32_t;
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#elif defined __FreeBSD__
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#include <inttypes.h>
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#else
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typedef short int int16_t;
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typedef unsigned short int uint16_t;
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#if defined SN_TARGET_PS2
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typedef int int32_t;
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typedef unsigned int uint32_t;
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#else
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typedef long int int32_t;
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typedef unsigned long int uint32_t;
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#endif
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#if defined __WIN32__ || defined _WIN32 || defined WIN32
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typedef __int64 int64_t;
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typedef unsigned __int64 uint64_t;
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#define HAVE_I64
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#elif defined __GNUC__
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typedef long long int64_t;
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typedef unsigned long long uint64_t;
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#define HAVE_I64
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#endif
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#endif
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#endif
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#define HAVE_STDINT_H
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#endif
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#if defined _LP64 || defined WIN64 || defined _WIN64
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#if !defined __64BIT__
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#define __64BIT__
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#endif
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#endif
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#if HAVE_ALLOCA_H
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#include <alloca.h>
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#endif
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/*#if defined __WIN32__ || defined _WIN32 || defined WIN32
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#if !defined alloca
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#define xalloca(n) _alloca(n)
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#endif
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#endif*/
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#if !defined arraysize
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#define arraysize(array) (sizeof(array) / sizeof((array)[0]))
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if defined PAWN_DLL
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#if !defined AMX_NATIVE_CALL
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#define AMX_NATIVE_CALL __stdcall
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#endif
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#if !defined AMXAPI
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#define AMXAPI __stdcall
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#endif
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#endif
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/* calling convention for native functions */
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#if !defined AMX_NATIVE_CALL
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#define AMX_NATIVE_CALL
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#endif
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/* calling convention for all interface functions and callback functions */
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#if !defined AMXAPI
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#if defined STDECL
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#define AMXAPI __stdcall
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#elif defined CDECL
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#define AMXAPI __cdecl
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#elif defined GCC_HASCLASSVISIBILITY
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#define AMXAPI __attribute__ ((visibility("default")))
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#else
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#define AMXAPI
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#endif
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#endif
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#if !defined AMXEXPORT
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#define AMXEXPORT
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#endif
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/* File format version Required AMX version
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* 0 (original version) 0
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* 1 (opcodes JUMP.pri, SWITCH and CASETBL) 1
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* 2 (compressed files) 2
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* 3 (public variables) 2
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* 4 (opcodes SWAP.pri/alt and PUSHADDR) 4
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* 5 (tagnames table) 4
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* 6 (reformatted header) 6
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* 7 (name table, opcodes SYMTAG & SYSREQ.D) 7
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* 8 (opcode STMT, renewed debug interface) 8
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*/
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#define CUR_FILE_VERSION 8 /* current file version; also the current AMX version */
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#define MIN_FILE_VERSION 6 /* lowest supported file format version for the current AMX version */
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#define MIN_AMX_VERSION 8 /* minimum AMX version needed to support the current file format */
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#if !defined PAWN_CELL_SIZE
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#define PAWN_CELL_SIZE 32 /* by default, use 32-bit cells */
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#endif
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#if PAWN_CELL_SIZE==16
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typedef uint16_t ucell;
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typedef int16_t cell;
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#elif PAWN_CELL_SIZE==32
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typedef uint32_t ucell;
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typedef int32_t cell;
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#elif PAWN_CELL_SIZE==64
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typedef uint64_t ucell;
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typedef int64_t cell;
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#else
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#error Unsupported cell size (PAWN_CELL_SIZE)
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#endif
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#define UNPACKEDMAX ((1L << (sizeof(cell)-1)*8) - 1)
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#define UNLIMITED (~1u >> 1)
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struct tagAMX;
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typedef cell (AMX_NATIVE_CALL *AMX_NATIVE)(struct tagAMX *amx, cell *params);
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typedef int (AMXAPI *AMX_CALLBACK)(struct tagAMX *amx, cell index,
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cell *result, cell *params);
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typedef int (AMXAPI *AMX_DEBUG)(struct tagAMX *amx);
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#if !defined _FAR
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#define _FAR
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#endif
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#if defined _MSC_VER
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#pragma warning(disable:4103) /* disable warning message 4103 that complains
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* about pragma pack in a header file */
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#pragma warning(disable:4100) /* "'%$S' : unreferenced formal parameter" */
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#endif
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/* Some compilers do not support the #pragma align, which should be fine. Some
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* compilers give a warning on unknown #pragmas, which is not so fine...
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*/
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#if (defined SN_TARGET_PS2 || defined __GNUC__) && !defined AMX_NO_ALIGN
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#define AMX_NO_ALIGN
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#endif
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#if defined __GNUC__
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#define PACKED __attribute__((packed))
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#else
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#define PACKED
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#endif
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#if !defined AMX_NO_ALIGN
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#if defined __LINUX__ || defined __FreeBSD__
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#pragma pack(1) /* structures must be packed (byte-aligned) */
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#elif defined MACOS && defined __MWERKS__
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#pragma options align=mac68k
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#else
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#pragma pack(push)
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#pragma pack(1) /* structures must be packed (byte-aligned) */
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#if defined __TURBOC__
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#pragma option -a- /* "pack" pragma for older Borland compilers */
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#endif
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#endif
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#endif
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typedef struct tagAMX_NATIVE_INFO {
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const char _FAR *name PACKED;
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AMX_NATIVE func PACKED;
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} PACKED AMX_NATIVE_INFO;
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#define AMX_USERNUM 4
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#define sEXPMAX 19 /* maximum name length for file version <= 6 */
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#define sNAMEMAX 31 /* maximum name length of symbol name */
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typedef struct tagAMX_FUNCSTUB {
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ucell address PACKED;
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char name[sEXPMAX+1];
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} PACKED AMX_FUNCSTUB;
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typedef struct tagFUNCSTUBNT {
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ucell address PACKED;
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uint32_t nameofs PACKED;
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} PACKED AMX_FUNCSTUBNT;
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/* The AMX structure is the internal structure for many functions. Not all
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* fields are valid at all times; many fields are cached in local variables.
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*/
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typedef struct tagAMX {
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unsigned char _FAR *base PACKED; /* points to the AMX header plus the code, optionally also the data */
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unsigned char _FAR *data PACKED; /* points to separate data+stack+heap, may be NULL */
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AMX_CALLBACK callback PACKED;
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AMX_DEBUG debug PACKED; /* debug callback */
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/* for external functions a few registers must be accessible from the outside */
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cell cip PACKED; /* instruction pointer: relative to base + amxhdr->cod */
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cell frm PACKED; /* stack frame base: relative to base + amxhdr->dat */
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cell hea PACKED; /* top of the heap: relative to base + amxhdr->dat */
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cell hlw PACKED; /* bottom of the heap: relative to base + amxhdr->dat */
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cell stk PACKED; /* stack pointer: relative to base + amxhdr->dat */
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cell stp PACKED; /* top of the stack: relative to base + amxhdr->dat */
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int flags PACKED; /* current status, see amx_Flags() */
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/* user data */
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long usertags[AMX_USERNUM] PACKED;
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void _FAR *userdata[AMX_USERNUM] PACKED;
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/* native functions can raise an error */
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int error PACKED;
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/* passing parameters requires a "count" field */
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int paramcount;
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/* the sleep opcode needs to store the full AMX status */
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cell pri PACKED;
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cell alt PACKED;
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cell reset_stk PACKED;
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cell reset_hea PACKED;
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cell sysreq_d PACKED; /* relocated address/value for the SYSREQ.D opcode */
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#if defined JIT
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/* support variables for the JIT */
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int reloc_size PACKED; /* required temporary buffer for relocations */
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long code_size PACKED; /* estimated memory footprint of the native code */
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#endif
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} PACKED AMX;
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/* The AMX_HEADER structure is both the memory format as the file format. The
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* structure is used internaly.
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*/
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typedef struct tagAMX_HEADER {
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int32_t size PACKED; /* size of the "file" */
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uint16_t magic PACKED; /* signature */
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char file_version; /* file format version */
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char amx_version; /* required version of the AMX */
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int16_t flags PACKED;
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int16_t defsize PACKED; /* size of a definition record */
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int32_t cod PACKED; /* initial value of COD - code block */
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int32_t dat PACKED; /* initial value of DAT - data block */
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int32_t hea PACKED; /* initial value of HEA - start of the heap */
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int32_t stp PACKED; /* initial value of STP - stack top */
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int32_t cip PACKED; /* initial value of CIP - the instruction pointer */
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int32_t publics PACKED; /* offset to the "public functions" table */
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int32_t natives PACKED; /* offset to the "native functions" table */
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int32_t libraries PACKED; /* offset to the table of libraries */
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int32_t pubvars PACKED; /* the "public variables" table */
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int32_t tags PACKED; /* the "public tagnames" table */
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int32_t nametable PACKED; /* name table */
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} PACKED AMX_HEADER;
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#if PAWN_CELL_SIZE==16
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#define AMX_MAGIC 0xf1e2
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#elif PAWN_CELL_SIZE==32
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#define AMX_MAGIC 0xf1e0
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#elif PAWN_CELL_SIZE==64
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#define AMX_MAGIC 0xf1e1
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#endif
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enum
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{
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AMX_ERR_NONE,
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/* reserve the first 15 error codes for exit codes of the abstract machine */
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AMX_ERR_EXIT, /* forced exit */
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AMX_ERR_ASSERT, /* assertion failed */
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AMX_ERR_STACKERR, /* stack/heap collision */
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AMX_ERR_BOUNDS, /* index out of bounds */
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AMX_ERR_MEMACCESS, /* invalid memory access */
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AMX_ERR_INVINSTR, /* invalid instruction */
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AMX_ERR_STACKLOW, /* stack underflow */
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AMX_ERR_HEAPLOW, /* heap underflow */
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AMX_ERR_CALLBACK, /* no callback, or invalid callback */
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AMX_ERR_NATIVE, /* native function failed */
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AMX_ERR_DIVIDE, /* divide by zero */
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AMX_ERR_SLEEP, /* go into sleepmode - code can be restarted */
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AMX_ERR_INVSTATE, /* invalid state for this access */
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AMX_ERR_MEMORY = 16, /* out of memory */
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AMX_ERR_FORMAT, /* invalid file format */
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AMX_ERR_VERSION, /* file is for a newer version of the AMX */
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AMX_ERR_NOTFOUND, /* function not found */
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AMX_ERR_INDEX, /* invalid index parameter (bad entry point) */
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AMX_ERR_DEBUG, /* debugger cannot run */
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AMX_ERR_INIT, /* AMX not initialized (or doubly initialized) */
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AMX_ERR_USERDATA, /* unable to set user data field (table full) */
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AMX_ERR_INIT_JIT, /* cannot initialize the JIT */
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AMX_ERR_PARAMS, /* parameter error */
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AMX_ERR_DOMAIN, /* domain error, expression result does not fit in range */
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AMX_ERR_GENERAL, /* general error (unknown or unspecific error) */
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};
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/* AMX_FLAG_CHAR16 0x01 no longer used */
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#define AMX_FLAG_DEBUG 0x02 /* symbolic info. available */
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#define AMX_FLAG_COMPACT 0x04 /* compact encoding */
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#define AMX_FLAG_BYTEOPC 0x08 /* opcode is a byte (not a cell) */
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#define AMX_FLAG_NOCHECKS 0x10 /* no array bounds checking; no STMT opcode */
|
||
|
|
#define AMX_FLAG_NTVREG 0x1000 /* all native functions are registered */
|
||
|
|
#define AMX_FLAG_JITC 0x2000 /* abstract machine is JIT compiled */
|
||
|
|
#define AMX_FLAG_BROWSE 0x4000 /* busy browsing */
|
||
|
|
#define AMX_FLAG_RELOC 0x8000 /* jump/call addresses relocated */
|
||
|
|
|
||
|
|
#define AMX_EXEC_MAIN -1 /* start at program entry point */
|
||
|
|
#define AMX_EXEC_CONT -2 /* continue from last address */
|
||
|
|
|
||
|
|
#define AMX_USERTAG(a,b,c,d) ((a) | ((b)<<8) | ((long)(c)<<16) | ((long)(d)<<24))
|
||
|
|
|
||
|
|
#if !defined AMX_COMPACTMARGIN
|
||
|
|
#define AMX_COMPACTMARGIN 64
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* for native functions that use floating point parameters, the following
|
||
|
|
* two macros are convenient for casting a "cell" into a "float" type _without_
|
||
|
|
* changing the bit pattern
|
||
|
|
*/
|
||
|
|
#if PAWN_CELL_SIZE==32
|
||
|
|
#define amx_ftoc(f) ( * ((cell*)&f) ) /* float to cell */
|
||
|
|
#define amx_ctof(c) ( * ((float*)&c) ) /* cell to float */
|
||
|
|
#elif PAWN_CELL_SIZE==64
|
||
|
|
#define amx_ftoc(f) ( * ((cell*)&f) ) /* float to cell */
|
||
|
|
#define amx_ctof(c) ( * ((double*)&c) ) /* cell to float */
|
||
|
|
#else
|
||
|
|
#error Unsupported cell size
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#define amx_StrParam(amx,param,result) \
|
||
|
|
do { \
|
||
|
|
cell *amx_cstr_; int amx_length_; \
|
||
|
|
amx_GetAddr((amx), (param), &amx_cstr_); \
|
||
|
|
amx_StrLen(amx_cstr_, &amx_length_); \
|
||
|
|
if (amx_length_ > 0 && \
|
||
|
|
((result) = (char*)alloca((amx_length_ + 1) * sizeof(*(result)))) != NULL) \
|
||
|
|
amx_GetString((char*)(result), amx_cstr_, sizeof(*(result))>1, amx_length_ + 1); \
|
||
|
|
else (result) = NULL; \
|
||
|
|
} while (0)
|
||
|
|
|
||
|
|
uint16_t * AMXAPI amx_Align16(uint16_t *v);
|
||
|
|
uint32_t * AMXAPI amx_Align32(uint32_t *v);
|
||
|
|
#if defined _I64_MAX || defined HAVE_I64
|
||
|
|
uint64_t * AMXAPI amx_Align64(uint64_t *v);
|
||
|
|
#endif
|
||
|
|
int AMXAPI amx_Allot(AMX *amx, int cells, cell *amx_addr, cell **phys_addr);
|
||
|
|
int AMXAPI amx_Callback(AMX *amx, cell index, cell *result, cell *params);
|
||
|
|
int AMXAPI amx_Cleanup(AMX *amx);
|
||
|
|
int AMXAPI amx_Clone(AMX *amxClone, AMX *amxSource, void *data);
|
||
|
|
int AMXAPI amx_Exec(AMX *amx, cell *retval, int index);
|
||
|
|
int AMXAPI amx_FindNative(AMX *amx, const char *name, int *index);
|
||
|
|
int AMXAPI amx_FindPublic(AMX *amx, const char *funcname, int *index);
|
||
|
|
int AMXAPI amx_FindPubVar(AMX *amx, const char *varname, cell *amx_addr);
|
||
|
|
int AMXAPI amx_FindTagId(AMX *amx, cell tag_id, char *tagname);
|
||
|
|
int AMXAPI amx_Flags(AMX *amx,uint16_t *flags);
|
||
|
|
int AMXAPI amx_GetAddr(AMX *amx,cell amx_addr,cell **phys_addr);
|
||
|
|
int AMXAPI amx_GetNative(AMX *amx, int index, char *funcname);
|
||
|
|
int AMXAPI amx_GetPublic(AMX *amx, int index, char *funcname);
|
||
|
|
int AMXAPI amx_GetPubVar(AMX *amx, int index, char *varname, cell *amx_addr);
|
||
|
|
int AMXAPI amx_GetString(char *dest,const cell *source, int use_wchar, size_t size);
|
||
|
|
int AMXAPI amx_GetTag(AMX *amx, int index, char *tagname, cell *tag_id);
|
||
|
|
int AMXAPI amx_GetUserData(AMX *amx, long tag, void **ptr);
|
||
|
|
int AMXAPI amx_Init(AMX *amx, void *program);
|
||
|
|
int AMXAPI amx_InitJIT(AMX *amx, void *reloc_table, void *native_code);
|
||
|
|
int AMXAPI amx_MemInfo(AMX *amx, long *codesize, long *datasize, long *stackheap);
|
||
|
|
int AMXAPI amx_NameLength(AMX *amx, int *length);
|
||
|
|
AMX_NATIVE_INFO * AMXAPI amx_NativeInfo(const char *name, AMX_NATIVE func);
|
||
|
|
int AMXAPI amx_NumNatives(AMX *amx, int *number);
|
||
|
|
int AMXAPI amx_NumPublics(AMX *amx, int *number);
|
||
|
|
int AMXAPI amx_NumPubVars(AMX *amx, int *number);
|
||
|
|
int AMXAPI amx_NumTags(AMX *amx, int *number);
|
||
|
|
int AMXAPI amx_Push(AMX *amx, cell value);
|
||
|
|
int AMXAPI amx_PushArray(AMX *amx, cell *amx_addr, cell **phys_addr, const cell array[], int numcells);
|
||
|
|
int AMXAPI amx_PushString(AMX *amx, cell *amx_addr, cell **phys_addr, const char *string, int pack, int use_wchar);
|
||
|
|
int AMXAPI amx_RaiseError(AMX *amx, int error);
|
||
|
|
int AMXAPI amx_Register(AMX *amx, const AMX_NATIVE_INFO *nativelist, int number);
|
||
|
|
int AMXAPI amx_Release(AMX *amx, cell amx_addr);
|
||
|
|
int AMXAPI amx_SetCallback(AMX *amx, AMX_CALLBACK callback);
|
||
|
|
int AMXAPI amx_SetDebugHook(AMX *amx, AMX_DEBUG debug);
|
||
|
|
int AMXAPI amx_SetString(cell *dest, const char *source, int pack, int use_wchar, size_t size);
|
||
|
|
int AMXAPI amx_SetUserData(AMX *amx, long tag, void *ptr);
|
||
|
|
int AMXAPI amx_StrLen(const cell *cstring, int *length);
|
||
|
|
int AMXAPI amx_UTF8Check(const char *string, int *length);
|
||
|
|
int AMXAPI amx_UTF8Get(const char *string, const char **endptr, cell *value);
|
||
|
|
int AMXAPI amx_UTF8Len(const cell *cstr, int *length);
|
||
|
|
int AMXAPI amx_UTF8Put(char *string, char **endptr, int maxchars, cell value);
|
||
|
|
|
||
|
|
#if PAWN_CELL_SIZE==16
|
||
|
|
#define amx_AlignCell(v) amx_Align16(v)
|
||
|
|
#elif PAWN_CELL_SIZE==32
|
||
|
|
#define amx_AlignCell(v) amx_Align32(v)
|
||
|
|
#elif PAWN_CELL_SIZE==64 && (defined _I64_MAX || defined HAVE_I64)
|
||
|
|
#define amx_AlignCell(v) amx_Align64(v)
|
||
|
|
#else
|
||
|
|
#error Unsupported cell size
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#define amx_RegisterFunc(amx, name, func) \
|
||
|
|
amx_Register((amx), amx_NativeInfo((name),(func)), 1);
|
||
|
|
|
||
|
|
#if !defined AMX_NO_ALIGN
|
||
|
|
#if defined __LINUX__ || defined __FreeBSD__
|
||
|
|
#pragma pack() /* reset default packing */
|
||
|
|
#elif defined MACOS && defined __MWERKS__
|
||
|
|
#pragma options align=reset
|
||
|
|
#else
|
||
|
|
#pragma pack(pop) /* reset previous packing */
|
||
|
|
#endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* AMX_H_INCLUDED */
|