Imported existing code

indra/lscript/lscript_compile/lscript_bytecode.h

@@ -0,0 +1,95 @@
+/** 
+ * @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
+