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