95 lines
3.4 KiB
C
95 lines
3.4 KiB
C
/*
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* $Id$
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*/
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/*
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* Harbour Project source code:
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* Compiler PCode generation functions
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*
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* Copyright 1999 {list of individual authors and e-mail addresses}
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* www - http://www.harbour-project.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version, with one exception:
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*
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* The exception is that if you link the Harbour Runtime Library (HRL)
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* and/or the Harbour Virtual Machine (HVM) with other files to produce
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* an executable, this does not by itself cause the resulting executable
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* to be covered by the GNU General Public License. Your use of that
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* executable is in no way restricted on account of linking the HRL
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* and/or HVM code into it.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA (or visit
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* their web site at http://www.gnu.org/).
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*
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*/
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#include "hbcomp.h"
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void hb_compGenPCode1( BYTE byte )
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{
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PFUNCTION pFunc = hb_comp_functions.pLast; /* get the currently defined Clipper function */
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if( ! pFunc->pCode ) /* has been created the memory block to hold the pcode ? */
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{
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pFunc->pCode = ( BYTE * ) hb_xgrab( HB_PCODE_CHUNK );
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pFunc->lPCodeSize = HB_PCODE_CHUNK;
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pFunc->lPCodePos = 0;
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}
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else
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if( ( pFunc->lPCodeSize - pFunc->lPCodePos ) < 1 )
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pFunc->pCode = ( BYTE * ) hb_xrealloc( pFunc->pCode, pFunc->lPCodeSize += HB_PCODE_CHUNK );
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pFunc->pCode[ pFunc->lPCodePos++ ] = byte;
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}
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void hb_compGenPCode3( BYTE byte1, BYTE byte2, BYTE byte3 )
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{
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PFUNCTION pFunc = hb_comp_functions.pLast; /* get the currently defined Clipper function */
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if( ! pFunc->pCode ) /* has been created the memory block to hold the pcode ? */
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{
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pFunc->pCode = ( BYTE * ) hb_xgrab( HB_PCODE_CHUNK );
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pFunc->lPCodeSize = HB_PCODE_CHUNK;
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pFunc->lPCodePos = 0;
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}
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else
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if( ( pFunc->lPCodeSize - pFunc->lPCodePos ) < 3 )
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pFunc->pCode = ( BYTE * ) hb_xrealloc( pFunc->pCode, pFunc->lPCodeSize += HB_PCODE_CHUNK );
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pFunc->pCode[ pFunc->lPCodePos++ ] = byte1;
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pFunc->pCode[ pFunc->lPCodePos++ ] = byte2;
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pFunc->pCode[ pFunc->lPCodePos++ ] = byte3;
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}
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void hb_compGenPCodeN( BYTE * pBuffer, ULONG ulSize )
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{
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PFUNCTION pFunc = hb_comp_functions.pLast; /* get the currently defined Clipper function */
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if( ! pFunc->pCode ) /* has been created the memory block to hold the pcode ? */
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{
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pFunc->lPCodeSize = ( ( ulSize / HB_PCODE_CHUNK ) + 1 ) * HB_PCODE_CHUNK;
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pFunc->pCode = ( BYTE * ) hb_xgrab( pFunc->lPCodeSize );
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pFunc->lPCodePos = 0;
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}
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else if( pFunc->lPCodePos + ulSize > pFunc->lPCodeSize )
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{
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/* not enough free space in pcode buffer - increase it */
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pFunc->lPCodeSize += ( ( ( ulSize / HB_PCODE_CHUNK ) + 1 ) * HB_PCODE_CHUNK );
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pFunc->pCode = ( BYTE * ) hb_xrealloc( pFunc->pCode, pFunc->lPCodeSize );
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}
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memcpy( pFunc->pCode + pFunc->lPCodePos, pBuffer, ulSize );
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pFunc->lPCodePos += ulSize;
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}
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