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/**
* @file lscript_bytecode.h
* @brief classes to build actual bytecode
*
* $LicenseInfo:firstyear=2002&license=viewergpl$
*
* Copyright (c) 2002-2009, Linden Research, Inc.
*
* Second Life Viewer Source Code
* The source code in this file ("Source Code") is provided by Linden Lab
* to you under the terms of the GNU General Public License, version 2.0
* ("GPL"), unless you have obtained a separate licensing agreement
* ("Other License"), formally executed by you and Linden Lab. Terms of
* the GPL can be found in doc/GPL-license.txt in this distribution, or
* online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
*
* There are special exceptions to the terms and conditions of the GPL as
* it is applied to this Source Code. View the full text of the exception
* in the file doc/FLOSS-exception.txt in this software distribution, or
* online at
* http://secondlifegrid.net/programs/open_source/licensing/flossexception
*
* By copying, modifying or distributing this software, you acknowledge
* that you have read and understood your obligations described above,
* and agree to abide by those obligations.
*
* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
* COMPLETENESS OR PERFORMANCE.
* $/LicenseInfo$
*/
#ifndef LL_LSCRIPT_BYTECODE_H
#define LL_LSCRIPT_BYTECODE_H
#include "lscript_byteconvert.h"
#include "lscript_scope.h"
class LLScriptJumpTable
{
public:
LLScriptJumpTable();
~LLScriptJumpTable();
void addLabel(char *name, S32 offset);
void addJump(char *name, S32 offset);
LLMap<char *, S32 *> mLabelMap;
LLMap<char *, S32 *> mJumpMap;
};
class LLScriptByteCodeChunk
{
public:
LLScriptByteCodeChunk(BOOL b_need_jumps);
~LLScriptByteCodeChunk();
void addByte(U8 byte);
void addU16(U16 data);
void addBytes(const U8 *bytes, S32 size);
void addBytes(const char *bytes, S32 size);
void addBytes(S32 size);
void addBytesDontInc(S32 size);
void addInteger(S32 value);
void addFloat(F32 value);
void addLabel(char *name);
void addJump(char *name);
void connectJumps();
U8 *mCodeChunk;
S32 mCurrentOffset;
LLScriptJumpTable *mJumpTable;
};
class LLScriptScriptCodeChunk
{
public:
LLScriptScriptCodeChunk(S32 total_size);
~LLScriptScriptCodeChunk();
void build(LLFILE *efp, LLFILE *bcfp);
LLScriptByteCodeChunk *mRegisters;
LLScriptByteCodeChunk *mGlobalVariables;
LLScriptByteCodeChunk *mGlobalFunctions;
LLScriptByteCodeChunk *mStates;
LLScriptByteCodeChunk *mHeap;
S32 mTotalSize;
U8 *mCompleteCode;
};
extern LLScriptScriptCodeChunk *gScriptCodeChunk;
#endif
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