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/**
* @file lscript_bytecode.h
* @brief classes to build actual bytecode
*
* $LicenseInfo:firstyear=2002&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#ifndef LL_LSCRIPT_BYTECODE_H
#define LL_LSCRIPT_BYTECODE_H
#include "lscript_byteconvert.h"
#include "lscript_scope.h"
#include <map>
class LLScriptJumpTable
{
public:
LLScriptJumpTable();
~LLScriptJumpTable();
void addLabel(char *name, S32 offset);
void addJump(char *name, S32 offset);
std::map<char *, S32 *> mLabelMap;
std::map<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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