harbour-core/harbour/src/compiler/genobj32.c

/*
 * $Id$
 */

/*
 * Harbour Project source code:
 * Compiler Windows/DOS OBJ32 generation
 *
 * Copyright 1999 Antonio Linares <alinares@fivetech.com>
 * www - http://www.harbour-project.org
 *
 * This program 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 of the License, or
 * (at your option) any later version.
 *
 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA (or visit
 * their web site at http://www.gnu.org/).
 *
 */

#include "hbcomp.h"

static BYTE s_prgFunction[] = { 0x68, 0x00, 0x00, 0x00, 0x00, 0x68, 0x00, 0x00, 0x00,
                                0x00, 0xE8, 0x00, 0x00, 0x00, 0x00, 0x83, 0xC4, 0x08, 0xC3 };

static char * * s_externNames = NULL;
static USHORT s_wExternals = 1; /* _hb_vmExecute is always added */
static const char * s_szPrefix = "_HB_FUN_";

static USHORT hb_compFunctionGetPos( HB_COMP_DECL, char * szFunctionName ) /* return 0 if not found or order + 1 */
{
   PFUNCTION pFunc = HB_COMP_PARAM->functions.pFirst;
   USHORT wFunction = HB_COMP_PARAM->fStartProc ? 1 : 0;

   while( pFunc )
   {
      if( ! strcmp( pFunc->szName, szFunctionName ) && pFunc != HB_COMP_PARAM->functions.pFirst )
         return wFunction;
      wFunction++;
      pFunc = pFunc->pNext;
   }
   return 0;
}

static ULONG GetSymbolsSize( HB_COMP_DECL )
{
   return HB_COMP_PARAM->symbols.iCount * sizeof( HB_SYMB );
}

static PCOMSYMBOL GetFirstSymbol( HB_COMP_DECL )
{
   PCOMSYMBOL pSymbol = HB_COMP_PARAM->symbols.pFirst;
   return pSymbol;
}

static char * GetSymbolName( HB_COMP_DECL, ULONG ulPos )
{
   PCOMSYMBOL pSymbol = GetFirstSymbol( HB_COMP_PARAM );
   ULONG ul = 0;

   while( pSymbol && ( ul++ < ulPos ) )
      pSymbol = pSymbol->pNext;

   return pSymbol->szName;
}

static ULONG GetPCodesSize( HB_COMP_DECL )
{
   ULONG ulTotal = 0;
   PFUNCTION pFunction = HB_COMP_PARAM->functions.pFirst;

   if( ! HB_COMP_PARAM->fStartProc )
      pFunction = pFunction->pNext;

   while( pFunction )
   {
      ulTotal += pFunction->lPCodePos;
      pFunction = pFunction->pNext;
   }
   return ulTotal;
}

static ULONG GetSymbolsAmount( HB_COMP_DECL )
{
   PCOMSYMBOL pSymbol = GetFirstSymbol( HB_COMP_PARAM );
   ULONG ulAmount = 1;

   while( pSymbol->pNext )
   {
      ulAmount++;
      pSymbol = pSymbol->pNext;
   }
   return ulAmount;
}

static BOOL IsExternal( HB_COMP_DECL, ULONG ulSymbol )
{
   PCOMSYMBOL pSymbol = GetFirstSymbol( HB_COMP_PARAM );
   ULONG ul = 0;

   while( ul++ < ulSymbol )
      pSymbol = pSymbol->pNext;

   return ! hb_compFunctionFind( HB_COMP_PARAM, pSymbol->szName );
}

static USHORT GetExternalPos( char * szExternal )
{
   USHORT w = 0;

   while( w < s_wExternals )
   {
      if( ! strcmp( szExternal, s_externNames[ w ] ) )
         break;
      w++;
   }

   return w;
}

static void GenerateLocalNames( FILE * hObjFile )
{
   char * localNames[] = { "_TEXT", "CODE",
                           "_NULL", "_DATA", "DATA",
                           "_BSS", "BSS", "DGROUP",
                           "HB_STARTSYMBOLS", "HB_SYMBOLS", "HB_ENDSYMBOLS", "HARBOUR",
                           "HB_STARTBORSYMBOLS", "_INIT_", "HB_ENDBORSYMBOLS", "INITDATA", "BORLAND",
                           0 };

   LocalNames( hObjFile, localNames );
}

static void GenerateSymbolsSegment( HB_COMP_DECL, FILE * hObjFile )
{
   BYTE symbolsData[]   = { 0, 0, 0, 0, 0, 0, 0, 0 };
   BYTE groupDGroup[]   = { 2, 3, 4, 0 }; /* segments defined order for DGROUP */
   BYTE groupSymGroup[] = { 5, 6, 7, 0 }; /* segments defined order for SYMGROUP */
   BYTE groupInitData[] = { 8, 9, 10, 0 }; /* segments defined order for INITDATA */

   DefineSegment( hObjFile, 10,   /* HB_STARTSYMBOLS position + 1 into localnames */
                             6,   /* "DATA" position + 1 into localNames */
                             0 ); /* segment length */
   DefineSegment( hObjFile, 11,   /* HB_SYMBOLS position + 1 into localNames */
                             6,   /* "DATA" position + 1 into localNames */
                             8 ); /* segment length */
   DefineSegment( hObjFile, 12,   /* HB_ENDSYMBOLS position + 1 into localNames */
                             6,   /* "DATA" position + 1 into localNames */
                             0 ); /* segment length */

   DefineSegment( hObjFile, 14,   /* HB_STARTBORSYMBOLS position + 1 into localnames */
                            17,   /* INITDATA position + 1 into localNames */
                             0 ); /* segment length */
   DefineSegment( hObjFile, 15,   /* HB_STARTSYMBOLS position + 1 into localnames */
                            17,   /* INITDATA position + 1 into localNames */
                             0 ); /* segment length */
   DefineSegment( hObjFile, 16,   /* HB_ENDBORSYMBOLS position + 1 into localnames */
                            17,   /* INITDATA position + 1 into localNames */
                             0 ); /* segment length */

   GroupDef( hObjFile,  8, groupDGroup );   /* "DGROUP" localNames position - 1 */
   GroupDef( hObjFile, 12, groupSymGroup ); /* "SYMGROUP" localNames position - 1 */
   GroupDef( hObjFile, 17, groupInitData ); /* "BORLAND" localNames position - 1 */

   * ( USHORT * ) symbolsData = (USHORT) GetSymbolsAmount( HB_COMP_PARAM );

   EnumeratedData( hObjFile, 6, symbolsData, sizeof( symbolsData ), 0 ); /* HB_SYMBOLS defined order segment */

   Fixup( hObjFile, 0xE4, 4, /* offset into HB_SYMBOLS segment */
                    0x54, 4 ); /* DATA segment defined order */
}

static void GenerateDataSegment( HB_COMP_DECL, FILE * hObjFile )
{
   HB_SYMB symbol;
   ULONG ulSize = GetSymbolsSize( HB_COMP_PARAM );
   PCOMSYMBOL pSymbol = GetFirstSymbol( HB_COMP_PARAM );
   ULONG ulSymbols = GetSymbolsAmount( HB_COMP_PARAM ), ul;

   while( pSymbol )
   {
      ulSize += strlen( pSymbol->szName ) + 1;
      pSymbol = pSymbol->pNext;
   }

   ulSize += GetPCodesSize( HB_COMP_PARAM );

   DefineSegment( hObjFile,  4,   /* _NULL position + 1 into localnames */
                             6,   /* "DATA" position + 1 into localNames */
                             0 ); /* segment length */
   DefineSegment( hObjFile,  7,   /* _BSS position + 1 into localNames */
                             8,   /* "BSS" position + 1 into localNames */
                             0 ); /* segment length */
   DefineSegment( hObjFile, 5, /* "_DATA" position + 1 into localNames */
                            6, /* "DATA" position + 1 into localNames */
                     (USHORT) ulSize ); /* segment length */

   memset( &symbol, 0, sizeof( symbol ) );
   DataSegment( HB_COMP_PARAM, hObjFile, (BYTE *) &symbol,
                sizeof( symbol ), GetSymbolsAmount( HB_COMP_PARAM ), ulSize );

   pSymbol = GetFirstSymbol( HB_COMP_PARAM );
   for( ul = 0; ul < ulSymbols; ul++ )
   {
      Fixup( hObjFile, 0xE4, (USHORT) ( ul * sizeof( HB_SYMB ) ), 0x54, 4 ); /* 4 = Data symbol name location */

      if( IsExternal( HB_COMP_PARAM, ul ) )
      {
         if( ! ( pSymbol->cScope & HB_FS_MESSAGE ) )
            Fixup( hObjFile, 0xE4, (USHORT) ( ul * sizeof( HB_SYMB ) ) + 8, 0x56,
                   GetExternalPos( GetSymbolName( HB_COMP_PARAM, ul ) ) + 1 );
      }
      else
      {
         /* if( ! ( pSymbol->cScope & HB_FS_MESSAGE ) ) */
         Fixup( hObjFile, 0xE4, (USHORT) ( ul * sizeof( HB_SYMB ) ) + 8, 0x54, 1 ); /* function address location */
      }
      pSymbol = pSymbol->pNext;
   }
}

static void GenerateCodeSegment( HB_COMP_DECL, FILE * hObjFile )
{
   USHORT wFunctions = HB_COMP_PARAM->functions.iCount - ( HB_COMP_PARAM->fStartProc ? 0: 1 );
   ULONG ulSize    = wFunctions * sizeof( s_prgFunction );
   PFUNCTION pFunc = ( HB_COMP_PARAM->fStartProc ? HB_COMP_PARAM->functions.pFirst: HB_COMP_PARAM->functions.pFirst->pNext );
   USHORT w = 0;

   DefineSegment( hObjFile, 2, /* "_TEXT" position + 1 into localNames */
                  3, /* "CODE" position + 1 into localNames */
                  (USHORT) ulSize ); /* segment length */

   while( pFunc )
   {
      if( !( pFunc->cScope & ( HB_FS_STATIC | HB_FS_INIT | HB_FS_EXIT ) ) )
         PubDef( hObjFile, pFunc->szName, 1, w * sizeof( s_prgFunction ) );
      w++;
      pFunc = pFunc->pNext;
   }

   CodeSegment( HB_COMP_PARAM, hObjFile, s_prgFunction, sizeof( s_prgFunction ), wFunctions );

   for( w = 0; w < wFunctions; w++ )
   {
      /* s_prgFunction fixups */
      Fixup( hObjFile, 0xE4, ( w * sizeof( s_prgFunction ) ) + 1,
             0x54, 4 ); /* 4 = DATA segment defined order */

      Fixup( hObjFile, 0xE4, ( w * sizeof( s_prgFunction ) ) + 6,
             0x54, 4 ); /* DATA segment define order - pcode location */

      Fixup( hObjFile, 0xA4, ( w * sizeof( s_prgFunction ) ) + 11,
             0x56, 1 ); /* External: _hb_vmExecute */
   }
}

static void GenerateExternals( HB_COMP_DECL, FILE * hObjFile )
{
   USHORT w;
   PFUNCALL pFunc;
   PFUNCTION pFTemp;

   /* calculate amount of externals */
   pFunc = HB_COMP_PARAM->funcalls.pFirst;
   while( pFunc )
   {
      if( ( pFTemp = hb_compFunctionFind( HB_COMP_PARAM, pFunc->szName ) ) == NULL || pFTemp == HB_COMP_PARAM->functions.pFirst )
         s_wExternals++;
      pFunc = pFunc->pNext;
   }

   if( s_wExternals )
   {
      s_externNames = ( char * * ) hb_xgrab( sizeof( char * ) * ( s_wExternals + 2 ) );
      w = 1;
      s_externNames[ 0 ] = "_hb_vmExecute";

      pFunc = HB_COMP_PARAM->funcalls.pFirst;
      while( pFunc )
      {
         if( ( pFTemp = hb_compFunctionFind( HB_COMP_PARAM, pFunc->szName ) ) == NULL || pFTemp == HB_COMP_PARAM->functions.pFirst )
           s_externNames[ w++ ] = pFunc->szName;
         pFunc = pFunc->pNext;
      }
      s_externNames[ w ] = 0;
      ExternalNames( hObjFile, s_externNames );
   }
}

static void putbyte( BYTE b, FILE * hObjFile, BYTE * pbChecksum )
{
   fputc( b, hObjFile );
   * pbChecksum += b;
}

static void putword( USHORT w, FILE * hObjFile, BYTE * pbChecksum )
{
   putbyte( HB_LOBYTE( w ), hObjFile, pbChecksum );
   putbyte( HB_HIBYTE( w ), hObjFile, pbChecksum );
}

static void CompiledFileName( FILE * hObjFile, char * szFileName )
{
   USHORT wLen = strlen( szFileName );
   BYTE bChk = 0; /* this is a checksum the linker will check to asure OBJ integrity */
   BYTE bChar;

   putbyte( 0x80, hObjFile, &bChk );  /* this tells the linker the kind of OBJ record this is */
   putbyte( 1 + 1 + wLen, hObjFile, &bChk ); /* now it comes the total length of this OBJ record */
   putbyte( 0, hObjFile, &bChk );
   putbyte( (BYTE) wLen, hObjFile, &bChk );     /* szFileName length */

   while( ( bChar = * szFileName++ ) != 0 )
      putbyte( bChar, hObjFile, &bChk );   /* each of the szFileName characters */

   putbyte( 256 - bChk, hObjFile, &bChk ); /* a checksum that will be recalculated by the linker */
}

static void CompilerVersion( FILE * hObjFile, char * szVersion )
{
   USHORT wLen = strlen( szVersion );
   BYTE bChk = 0; /* this is a checksum the linker will check to asure OBJ integrity */
   BYTE bChar;

   putbyte( 0x88, hObjFile, &bChk );  /* this tells the linker the kind of OBJ record this is */
   putword( 3 + wLen, hObjFile, &bChk ); /* now it comes the total length of this OBJ record */
   putword( 0, hObjFile, &bChk );

   while( ( bChar = * szVersion++ ) != 0 )
      putbyte( bChar, hObjFile, &bChk );   /* each of the szFileName characters */

   putbyte( 256 - bChk, hObjFile, &bChk ); /* a checksum that will be recalculated by the linker */
}

static void LocalNames( FILE * hObjFile, char * szNames[] )
{
   BYTE b = 0, c;
   USHORT wTotalLen = 0;
   BYTE bChk = 0;

   while( szNames[ b ] )
      wTotalLen += strlen( szNames[ b++ ] );
   wTotalLen += 2 + b;

   putbyte( 0x96, hObjFile, &bChk );
   putword( wTotalLen, hObjFile, &bChk );
   putbyte( 0, hObjFile, &bChk );

   b = 0;
   while( szNames[ b ] )
   {
      putbyte( strlen( szNames[ b ] ), hObjFile, &bChk );

      c = 0;
      while( szNames[ b ][ c ] )
         putbyte( szNames[ b ][ c++ ], hObjFile, &bChk );
      b++;
   }
   putbyte( 256 - bChk, hObjFile, &bChk );
}

static void ExternalNames( FILE * hObjFile, char * szNames[] )
{
   BYTE b = 0, c;
   USHORT wTotalLen = 0;
   BYTE bChk = 0;

   while( szNames[ b ] )
   {
      if( b == 0 )
         wTotalLen += strlen( szNames[ b++ ] ) + 1;
      else
         wTotalLen += strlen( s_szPrefix ) + strlen( szNames[ b++ ] ) + 1;
   }
   wTotalLen += 2 + b - 1;

   putbyte( 0x8C, hObjFile, &bChk );
   putword( wTotalLen, hObjFile, &bChk );

   b = 0;
   while( szNames[ b ] )
   {
      if( b == 0 )
         putbyte( strlen( szNames[ b ] ), hObjFile, &bChk );
      else
         putbyte( strlen( s_szPrefix ) + strlen( szNames[ b ] ), hObjFile, &bChk );

      c = 0;

      if( b > 0 )
      {
         while( s_szPrefix[ c ] )
            putbyte( s_szPrefix[ c++ ], hObjFile, &bChk );
         c = 0;
      }

      while( szNames[ b ][ c ] )
         putbyte( szNames[ b ][ c++ ], hObjFile, &bChk );
      putbyte( 0, hObjFile, &bChk );
      b++;
   }
   putbyte( 256 - bChk, hObjFile, &bChk );
}

static void CodeSegment( HB_COMP_DECL, FILE * hObjFile, BYTE * prgCode, ULONG ulPrgLen, USHORT wFunctions )
{
   BYTE bChk = 0;
   USHORT y;
   USHORT wTotalLen = (USHORT) ( ulPrgLen * wFunctions ) + 4;
   ULONG ul;
   PFUNCTION pFunction = HB_COMP_PARAM->functions.pFirst;
   ULONG ulPCodeOffset = HB_COMP_PARAM->symbols.iCount * sizeof( HB_SYMB );

   if( ! HB_COMP_PARAM->fStartProc )
      pFunction = pFunction->pNext;

   putbyte( 0xA0, hObjFile, &bChk );
   putword( wTotalLen, hObjFile, &bChk );
   putbyte( 1, hObjFile, &bChk ); /* 1 = _TEXT segment */
   putword( 0, hObjFile, &bChk ); /* 0 = offset */

   for( y = 0; y < wFunctions; y++ )
   {
      * ( ULONG * ) &prgCode[ 6 ] = ulPCodeOffset; /* function pcode offset */
      for( ul = 0; ul < ulPrgLen; ul++ )
         putbyte( * ( prgCode + ul ), hObjFile, &bChk );
      ulPCodeOffset += pFunction->lPCodePos;
      pFunction = pFunction->pNext;
   }

   putbyte( 256 - bChk, hObjFile, &bChk );
}

static void DataSegment( HB_COMP_DECL, FILE * hObjFile, BYTE * symbol, ULONG wSymLen, ULONG wSymbols,
                         ULONG ulSize )
{
   BYTE bChk = 0;
   ULONG w, y;
   USHORT wTotalLen = 4 + (USHORT) ulSize;
   PCOMSYMBOL pSymbol = GetFirstSymbol( HB_COMP_PARAM );
   PFUNCTION pFunction = HB_COMP_PARAM->functions.pFirst;
   ULONG ulSymbolNameOffset = GetSymbolsSize( HB_COMP_PARAM ) + GetPCodesSize( HB_COMP_PARAM );
   ULONG ulFunctionOffset;

   if( ! HB_COMP_PARAM->fStartProc )
      pFunction = pFunction->pNext;

   putbyte( 0xA0, hObjFile, &bChk );
   putword( wTotalLen, hObjFile, &bChk );
   putbyte( 4, hObjFile, &bChk ); /* 2 = _DATA segment defined order */
   putword( 0, hObjFile, &bChk ); /* 0 = offset */

   for( y = 0; y < wSymbols; y++ )
   {
      * ( ULONG * ) symbol = ulSymbolNameOffset;

      if( ! IsExternal( HB_COMP_PARAM, y ) )
      {
         ulFunctionOffset = ( hb_compFunctionGetPos( HB_COMP_PARAM, pSymbol->szName ) - 1 ) *
           sizeof( s_prgFunction );
         * ( ( ULONG * ) &symbol[ 8 ] ) = ulFunctionOffset; /* 8 offset of function pointer into symbol */
      }
      else
         * ( ( ULONG * ) &symbol[ 8 ] ) = 0; /* 8 offset of function pointer into symbol */

      if( pSymbol->cScope == HB_FS_MESSAGE )
         symbol[ 4 ] = HB_FS_PUBLIC;
      else
         symbol[ 4 ] = pSymbol->cScope;

      for( w = 0; w < wSymLen; w++ )
         putbyte( * ( symbol + w ), hObjFile, &bChk );

      ulSymbolNameOffset += strlen( pSymbol->szName ) + 1;
      pSymbol = pSymbol->pNext;
   }

   while( pFunction )
   {
      w = 0;
      while( w < pFunction->lPCodePos )
         putbyte( pFunction->pCode[ w++ ], hObjFile, &bChk );

      pFunction = pFunction->pNext;
   }

   pSymbol = GetFirstSymbol( HB_COMP_PARAM );

   while( pSymbol )
   {
      for( w = 0; w < strlen( pSymbol->szName ); w++ )
         putbyte( pSymbol->szName[ w ], hObjFile, &bChk );

      putbyte( 0, hObjFile, &bChk );
      pSymbol = pSymbol->pNext;
   }

   putbyte( 256 - bChk, hObjFile, &bChk );
}

static void DefineSegment( FILE * hObjFile, BYTE bName, BYTE bClass, USHORT wLen )
{
   BYTE bChk = 0;

   putbyte( 0x98, hObjFile, &bChk );
   putbyte( 7, hObjFile, &bChk );      /* SegDef records have always this length */
   putbyte( 0, hObjFile, &bChk );

   putbyte( 0xA9, hObjFile, &bChk );
   putword( wLen, hObjFile, &bChk );
   putbyte( bName, hObjFile, &bChk );
   putbyte( bClass, hObjFile, &bChk );
   putbyte( 0, hObjFile, &bChk );

   putbyte( 256 - bChk, hObjFile, &bChk );
}

static void PubDef( FILE * hObjFile, char * szName, USHORT wSegment, USHORT wOffset )
{
   BYTE bChk = 0;
   BYTE bChar;
   USHORT wLen = 2 + 2 + strlen( s_szPrefix ) + strlen( szName ) + 2 + 1;
   const char * szTemp;

   putbyte( 0x90, hObjFile, &bChk );
   putword( wLen, hObjFile, &bChk );
   putbyte( 0x00, hObjFile, &bChk );
   putbyte( (BYTE) wSegment, hObjFile, &bChk );
   putbyte( strlen( s_szPrefix ) + strlen( szName ), hObjFile, &bChk );

   szTemp = s_szPrefix;
   while( ( bChar = * szTemp++ ) != 0 )
      putbyte( bChar, hObjFile, &bChk );

   while( ( bChar = * szName++ ) != 0 )
      putbyte( bChar, hObjFile, &bChk );

   putword( wOffset, hObjFile, &bChk );
   putbyte( 0x00, hObjFile, &bChk );

   putbyte( 256 - bChk, hObjFile, &bChk );
}

static void Fixup( FILE * hObjFile, BYTE bType, USHORT wOffset, BYTE bFlags, BYTE bSymbol )
{
   BYTE bChk = 0;

   putbyte( 0x9D, hObjFile, &bChk );
   putword( 5, hObjFile, &bChk );
   putbyte( bType + HB_HIBYTE( wOffset ), hObjFile, &bChk );
   putbyte( HB_LOBYTE( wOffset ), hObjFile, &bChk );
   putbyte( bFlags, hObjFile, &bChk );
   putbyte( bSymbol, hObjFile, &bChk );

   putbyte( 256 - bChk, hObjFile, &bChk );
}

static void EnumeratedData( FILE * hObjFile, BYTE bSegment, BYTE * pData, USHORT wLen, USHORT wOffset )
{
   BYTE bChk = 0;
   USHORT w;

   putbyte( 0xA0, hObjFile, &bChk );
   putword( ( USHORT ) ( wLen + 4 ), hObjFile, &bChk );
   putbyte( bSegment, hObjFile, &bChk );
   putword( wOffset, hObjFile, &bChk );

   for( w = 0; w < wLen; w++ )
      putbyte( * ( pData + w ), hObjFile, &bChk );

   putbyte( 256 - bChk, hObjFile, &bChk );
}

static void End( FILE * hObjFile )
{
   BYTE bChk = 0;

   putbyte( 0x8A, hObjFile, &bChk );
   putbyte( 0x02, hObjFile, &bChk );
   putbyte( 0x00, hObjFile, &bChk );
   putbyte( 0x00, hObjFile, &bChk );
   putbyte( 256 - bChk, hObjFile, &bChk );
}

static void GroupDef( FILE * hObjFile, BYTE bName, BYTE * aSegs )
{
   BYTE bChk = 0;
   USHORT wRecLen = 2;
   USHORT w       = 0;

   while( aSegs[ w++ ] )
     wRecLen += 2;

   putbyte( 0x9A, hObjFile, &bChk );
   putword( wRecLen, hObjFile, &bChk );
   putbyte( bName + 1, hObjFile, &bChk );

   w = 0;
   while( aSegs[ w ] )
   {
      putbyte( 0xFF, hObjFile, &bChk );
      putbyte( aSegs[ w++ ], hObjFile, &bChk );
   }

   putbyte( 256 - bChk, hObjFile, &bChk );
}

void hb_compGenObj32( HB_COMP_DECL, PHB_FNAME pFileName )
{
   char szFileName[ HB_PATH_MAX ];
   FILE * hObjFile;  /* file handle for OBJ output */
   char * szVer;

   if( ! pFileName->szExtension )
      pFileName->szExtension = ".obj";
   hb_fsFNameMerge( szFileName, pFileName );

   if( ( hObjFile = hb_fopen( szFileName, "wb" ) ) == NULL )
   {
      hb_compGenError( HB_COMP_PARAM, hb_comp_szErrors, 'E', HB_COMP_ERR_CREATE_OUTPUT, szFileName, NULL );
      return;
   }

   if( ! HB_COMP_PARAM->fQuiet )
   {
      char buffer[ 80 + HB_PATH_MAX - 1 ];
      hb_snprintf( buffer, sizeof( buffer ),
                "Generating Windows/DOS OBJ32 output to \'%s\'... ", szFileName );
      hb_compOutStd( HB_COMP_PARAM, buffer );
   }

   CompiledFileName( hObjFile, szFileName );
   szVer = hb_verHarbour();
   CompilerVersion( hObjFile, szVer );
   hb_xfree( szVer );
   GenerateLocalNames( hObjFile );
   GenerateExternals( HB_COMP_PARAM, hObjFile );
   GenerateCodeSegment( HB_COMP_PARAM, hObjFile );
   GenerateDataSegment( HB_COMP_PARAM, hObjFile );
   GenerateSymbolsSegment( HB_COMP_PARAM, hObjFile );
   End( hObjFile );
   if( s_externNames )
   {
      hb_xfree( s_externNames );
      s_externNames = NULL;
   }

   fclose( hObjFile );

   if( ! HB_COMP_PARAM->fQuiet )
      hb_compOutStd( HB_COMP_PARAM, "Done.\n" );
}