654 lines
24 KiB
C#
654 lines
24 KiB
C#
using arookas.IO.Binary;
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using System;
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using System.IO;
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using System.Linq;
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using System.Text;
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using System.Collections.Generic;
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namespace arookas {
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class sbdump {
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static CommandLineSettings sSettings;
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static aBinaryReader sReader;
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static TextWriter sWriter;
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static uint sTextOffset, sDataOffset, sSymOffset;
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static int sDataCount, sSymCount, sVarCount;
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const string cTitle = "sbdump arookas";
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static readonly string[] sSymbolTypes = { "builtin", "function", "var", };
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static readonly string[] sCommandNames = {
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"int", "flt", "str", "adr", "var", "nop", "inc", "dec",
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"add", "sub", "mul", "div", "mod", "ass", "eq", "ne",
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"gt", "lt", "ge", "le", "neg", "not", "and", "or",
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"band", "bor", "shl", "shr", "call", "func", "mkfr", "mkds",
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"ret", "ret0", "jne", "jmp", "pop", "int0", "int1", "end",
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};
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static int Main(string[] args) {
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#if !DEBUG
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try {
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#endif
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Console.WriteLine(cTitle);
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ReadCommandLine(args);
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Console.WriteLine("Opening input file...");
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using (var sb = File.OpenRead(sSettings.Input))
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{
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CreateReader(sb);
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Console.WriteLine("Creating output file...");
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using (sWriter = File.CreateText(sSettings.Output))
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{
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ReadHeader();
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if (sSettings.OutputSun)
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{
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WriteSun();
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}
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else
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{
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WritePreamble();
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if (sSettings.OutputHeader)
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{
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WriteHeader();
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}
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if (sSettings.OutputText)
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{
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WriteText();
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}
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if (sSettings.OutputData)
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{
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WriteData();
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}
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if (sSettings.OutputSym)
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{
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WriteSym();
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}
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if (sSettings.OutputVars)
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{
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WriteVars();
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}
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}
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Console.WriteLine("Closing output file...");
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}
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Console.WriteLine("Closing input file...");
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}
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Console.WriteLine("Done.");
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#if !DEBUG
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}
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catch (Exception e) {
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Console.WriteLine(e.Message);
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return 1;
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}
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#endif
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return 0;
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}
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static void ReadCommandLine(string[] args)
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{
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Console.WriteLine("Reading command line...");
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sSettings = new CommandLineSettings(new aCommandLine(args));
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}
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static void CreateReader(Stream stream) {
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Console.WriteLine("Creating binary reader...");
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sReader = new aBinaryReader(stream, Endianness.Big, Encoding.GetEncoding(932));
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}
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static void WritePreamble() {
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Console.WriteLine("Writing preamble...");
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sWriter.WriteLine("# {0}", cTitle);
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sWriter.WriteLine("# {0}", DateTime.Now);
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sWriter.WriteLine("# {0}", Path.GetFileName(sSettings.Input));
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sWriter.WriteLine();
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}
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static void ReadHeader() {
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Console.WriteLine("Reading header...");
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if (sReader.Read32() != 0x53504342u) { // 'SPCB'
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throw new Exception("Invalid magic.");
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}
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sTextOffset = sReader.Read32();
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sDataOffset = sReader.Read32();
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sDataCount = sReader.ReadS32();
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sSymOffset = sReader.Read32();
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sSymCount = sReader.ReadS32();
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sVarCount = sReader.ReadS32();
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}
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static void WriteHeader()
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{
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Console.WriteLine("Outputting header...");
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sWriter.WriteLine("# Header information");
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sWriter.WriteLine("# .text offset : {0:X8}", sTextOffset);
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sWriter.WriteLine("# .data offset : {0:X8}", sDataOffset);
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sWriter.WriteLine("# .data count : {0}", sDataCount);
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sWriter.WriteLine("# .sym offset : {0:X8}", sSymOffset);
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sWriter.WriteLine("# .sym count : {0}", sSymCount);
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sWriter.WriteLine("# var count : {0}", sVarCount);
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sWriter.WriteLine();
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}
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static void WriteText()
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{
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Console.WriteLine("Outputting .text...");
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sWriter.WriteLine(".text");
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WriteText(0u);
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var symbols = new Symbol[sSymCount];
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for (var i = 0; i < sSymCount; ++i)
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{
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symbols[i] = FetchSymbol(i);
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}
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foreach (var symbol in symbols.Where(i => i.Type == SymbolType.Function).OrderBy(i => i.Data))
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{
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sWriter.WriteLine("{0}: ", FetchSymbolName(symbol));
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WriteText(symbol.Data);
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}
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}
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static void WriteText(uint ofs) {
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byte command;
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sReader.Keep();
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sReader.Goto(sTextOffset + ofs);
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var maxofs = 0u;
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do {
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var pos = sReader.Position - sTextOffset;
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command = sReader.Read8();
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sWriter.Write(" {0:X8} {1}", pos, sCommandNames[command]);
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var nextofs = 0u;
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switch (command) {
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case 0x00: sWriter.Write(" {0}", sReader.ReadS32()); break;
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case 0x01: sWriter.Write(" {0}", sReader.ReadF32()); break;
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case 0x02: {
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var data = sReader.ReadS32();
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var value = FetchDataValue(data);
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sWriter.Write(" {0} # \"{1}\"", data, value);
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break;
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}
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case 0x03: sWriter.Write(" ${0:X8}", sReader.Read32()); break;
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case 0x04: WriteVar(); break;
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case 0x06: WriteVar(); break;
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case 0x07: WriteVar(); break;
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case 0x0D: {
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sReader.Read8(); // TSpcInterp skips this byte
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WriteVar();
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break;
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}
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case 0x1C: {
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var dest = sReader.Read32();
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var args = sReader.ReadS32();
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var symbol = FetchSymbol(i => i.Data == dest);
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if (symbol != null) {
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sWriter.Write(" {0}, {1}", FetchSymbolName(symbol), args);
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}
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else {
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sWriter.Write(" ${0:X8}, {1}", dest, args);
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}
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break;
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}
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case 0x1D: sWriter.Write(" {0}, {1}", FetchSymbolName(FetchSymbol(sReader.ReadS32())), sReader.ReadS32()); break;
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case 0x1E: sWriter.Write(" {0}", sReader.ReadS32()); break;
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case 0x1F: sWriter.Write(" {0}", sReader.ReadS32()); break;
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case 0x22: nextofs = WriteJmp(ofs); break;
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case 0x23: nextofs = WriteJmp(ofs); break;
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}
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sWriter.WriteLine();
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if (nextofs > maxofs) {
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maxofs = nextofs;
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}
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} while (!IsReturnCommand(command) || sReader.Position <= sTextOffset + maxofs);
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sWriter.WriteLine();
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sReader.Back();
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}
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static void WriteVar() {
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var display = sReader.ReadS32();
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var data = sReader.ReadS32();
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sWriter.Write(" {0} {1}", display, data);
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switch (display) {
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case 0: sWriter.Write(" # {0}", FetchSymbolName(FetchSymbol(i => i.Type == SymbolType.Variable && i.Data == data))); break;
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case 1: sWriter.Write(" # local{0}", data); break;
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}
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}
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static uint WriteJmp(uint ofs) {
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var dest = sReader.Read32();
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var symbol = FetchSymbol(i => i.Data == ofs);
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if (ofs > 0 && symbol != null) {
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var name = FetchSymbolName(symbol);
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sWriter.Write(" {0} + ${1:X4} # ${2:X8}", name, dest - ofs, dest);
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}
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else {
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sWriter.Write(" ${0:X8}", dest);
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}
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return dest;
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}
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static void WriteData() {
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Console.WriteLine("Outputting .data...");
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sWriter.WriteLine(".data");
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sReader.Goto(sDataOffset);
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for (var i = 0; i < sDataCount; ++i) {
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var ofs = sReader.Read32();
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var data = FetchDataValue(ofs);
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sWriter.WriteLine(" .string \"{0}\"", data);
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}
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sWriter.WriteLine();
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}
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static void WriteSym() {
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Console.WriteLine("Outputting .sym...");
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sWriter.WriteLine(".sym");
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sReader.Goto(sSymOffset);
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for (var i = 0; i < sSymCount; ++i) {
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var symbol = new Symbol(sReader);
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var name = FetchSymbolName(symbol);
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sWriter.WriteLine(" .{0} {1}", sSymbolTypes[(int)symbol.Type], name);
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}
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sWriter.WriteLine();
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}
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static void WriteVars() {
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Console.WriteLine("Outputting variables...");
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sWriter.WriteLine("# variables:");
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for (var i = 0; i < sVarCount; ++i) {
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var symbol = FetchSymbol(j => j.Type == SymbolType.Variable && j.Data == i);
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if (symbol != null) {
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sWriter.WriteLine("# {0}", FetchSymbolName(symbol));
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}
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else {
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sWriter.WriteLine("# (NULL)");
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}
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}
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sWriter.WriteLine();
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}
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static void WriteSun()
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{
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Console.WriteLine("Decompiling sb file...");
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var symbols = new Symbol[sSymCount];
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for (var i = 0; i < sSymCount; ++i)
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{
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symbols[i] = FetchSymbol(i);
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}
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foreach (var symbol in symbols.Where(i => i.Type == SymbolType.Function).OrderBy(i => i.Data))
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{
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sWriter.WriteLine();
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sWriter.WriteLine("function "+ FetchSymbolName(symbol)+ "(...)" + Environment.NewLine+ "{");
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DecompFunction(symbol.Data, 1);
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sWriter.WriteLine("}");
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sWriter.WriteLine();
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}
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DecompFunction(0u, 0);//Decompile main part.
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}
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static void DecompFunction(uint ofs, int IndentL)
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{
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byte command;
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sReader.Keep();
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sReader.Goto(sTextOffset + ofs);
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var maxofs = 0u;
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Stack<string> Stack = new Stack<string>();
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CodeGraph FuncCodeGraph = new CodeGraph();
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do
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{
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var pos = sReader.Position - sTextOffset;
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command = sReader.Read8();
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var nextofs = 0u;
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switch (command)
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{
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case 0x00: //int
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{
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Stack.Push(sReader.ReadS32().ToString());
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break;
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}
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case 0x01: //flt
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{
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Stack.Push(sReader.ReadF32().ToString());
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break;
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}
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case 0x02: //str
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{
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var data = sReader.ReadS32();
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var value = FetchDataValue(data);
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Stack.Push("\"" + value +"\"");
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break;
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}
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case 0x03: //adr
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{
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Stack.Push(sReader.ReadS32().ToString("X8"));
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break;
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}
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case 0x04: //var
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{
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var display = sReader.ReadS32();
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var data = sReader.ReadS32();
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switch (display)
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{
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case 0: Stack.Push(FetchSymbolName(FetchSymbol(i => i.Type == SymbolType.Variable && i.Data == data))); break;
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case 1: Stack.Push("local" + data.ToString()); break;
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}
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break;
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}
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case 0x06: //inc
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{
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string Op = Stack.Pop();
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Stack.Push("(" + Op + "+1)");
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break;
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}
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case 0x07: //dec
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{
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string Op = Stack.Pop();
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Stack.Push("(" + Op + "-1)");
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break;
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}
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case 0x08: //add
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{
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string Op2 = Stack.Pop();
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string Op1 = Stack.Pop();
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Stack.Push("(" + Op1 + " + " + Op2 + ")");
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break;
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}
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case 0x09: //sub
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{
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string Op1 = Stack.Pop();
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string Op2 = Stack.Pop();
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Stack.Push("(" + Op1 + " - " + Op2 + ")");
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break;
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}
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case 0x0A: //mul
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{
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string Op2 = Stack.Pop();
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string Op1 = Stack.Pop();
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Stack.Push("(" + Op1 + " * " + Op2 + ")");
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break;
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}
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case 0x0B: //div
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{
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string Op1 = Stack.Pop();
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string Op2 = Stack.Pop();
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Stack.Push("(" + Op1 + " / " + Op2 + ")");
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break;
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}
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case 0x0C: //mod
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{
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string Op1 = Stack.Pop();
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string Op2 = Stack.Pop();
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Stack.Push("(" + Op1 + " % " + Op2 + ")");
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break;
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}
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case 0x0D: //ass
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{
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sReader.Read8(); //Ignore this byte
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var display = sReader.ReadS32();
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var data = sReader.ReadS32();
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string VariableName = "";
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switch (display)
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{
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case 0: VariableName = FetchSymbolName(FetchSymbol(i => i.Type == SymbolType.Variable && i.Data == data)); break;
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case 1: VariableName = "local" + data.ToString(); break;
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}
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CodeVertex NewLine = new CodeVertex(VertexType.CodeBlock , -1, VariableName + " = " + Stack.Pop() + ";", pos);
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FuncCodeGraph.AddVertex(NewLine);
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break;
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}
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case 0x0E: //eq
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{
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string Op2 = Stack.Pop();
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string Op1 = Stack.Pop();
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Stack.Push("(" + Op1 + " == " + Op2 + ")");
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break;
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}
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case 0x0F: //ne
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{
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string Op2 = Stack.Pop();
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string Op1 = Stack.Pop();
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Stack.Push("(" + Op1 + " != " + Op2 + ")");
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break;
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}
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case 0x10: //gt
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{
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string Op1 = Stack.Pop();
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string Op2 = Stack.Pop();
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Stack.Push("(" + Op1 + " > " + Op2 + ")");
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break;
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}
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case 0x11: //lt
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{
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string Op1 = Stack.Pop();
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string Op2 = Stack.Pop();
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Stack.Push("(" + Op1 + " < " + Op2 + ")");
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break;
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}
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case 0x12: //ge
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{
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string Op1 = Stack.Pop();
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string Op2 = Stack.Pop();
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Stack.Push("(" + Op1 + " >= " + Op2 + ")");
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break;
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}
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case 0x13: //le
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{
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string Op1 = Stack.Pop();
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string Op2 = Stack.Pop();
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Stack.Push("(" + Op1 + " <= " + Op2 + ")");
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break;
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}
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case 0x14: //neg
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{
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string Op1 = Stack.Pop();
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Stack.Push("-(" + Op1 + ")");
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break;
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}
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case 0x15: //not
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{
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string Op1 = Stack.Pop();
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Stack.Push("!(" + Op1 + ")");
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break;
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}
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case 0x16: //and
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{
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string Op1 = Stack.Pop();
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string Op2 = Stack.Pop();
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Stack.Push("(" + Op1 + " && " + Op2 + ")");
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break;
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}
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case 0x17: //or
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{
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string Op1 = Stack.Pop();
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string Op2 = Stack.Pop();
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Stack.Push("(" + Op1 + " || " + Op2 + ")");
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break;
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}
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case 0x18: //band
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{
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string Op1 = Stack.Pop();
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string Op2 = Stack.Pop();
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Stack.Push("(" + Op1 + " & " + Op2 + ")");
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break;
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}
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case 0x19: //bor
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{
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string Op1 = Stack.Pop();
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string Op2 = Stack.Pop();
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Stack.Push("(" + Op1 + " ^ " + Op2 + ")");
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break;
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}
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case 0x1A: //shl
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{
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string Op1 = Stack.Pop();
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string Op2 = Stack.Pop();
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Stack.Push("(" + Op1 + " << " + Op2 + ")");
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break;
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}
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case 0x1B: //shr
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{
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string Op1 = Stack.Pop();
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string Op2 = Stack.Pop();
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Stack.Push("(" + Op1 + " >> " + Op2 + ")");
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break;
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}
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case 0x1C: //call
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{
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var dest = sReader.Read32();
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var args = sReader.ReadS32();
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var symbol = FetchSymbol(i => i.Data == dest);
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string FuncName = "";
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if (symbol != null)
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{
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FuncName = FetchSymbolName(symbol);
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}
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else
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{
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FuncName = dest.ToString("X8");
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}
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string FuncInput = "";
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for(int i = 0; i < args; i++)
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{
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string Op = Stack.Pop();
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if (i != 0)
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FuncInput = Op + "," + FuncInput;
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else
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FuncInput = Op;
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}
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Stack.Push(FuncName + "(" + FuncInput + ")");
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break;
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}
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case 0x1D: //func
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{
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string FuncName = FetchSymbolName(FetchSymbol(sReader.ReadS32()));
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var args = sReader.ReadS32();
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string FuncInput = "";
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for (int i = 0; i < args; i++)
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{
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string Op = Stack.Pop();
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if (i != 0)
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FuncInput = Op + "," + FuncInput;
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else
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FuncInput = Op;
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}
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Stack.Push(FuncName + "(" + FuncInput + ")");
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break;
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}
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case 0x1E: sReader.ReadS32(); break;
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case 0x1F: sReader.ReadS32(); break;
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case 0x20: //ret
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{
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string Op = Stack.Pop();
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CodeVertex NewLine = new CodeVertex(VertexType.CodeBlock , -1, "return " + Op + ";", pos);
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FuncCodeGraph.AddVertex(NewLine);
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break;
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}
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case 0x21: //ret0
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{
|
|
CodeVertex NewLine = new CodeVertex(VertexType.CodeBlock, -1, "return 0;", pos);
|
|
FuncCodeGraph.AddVertex(NewLine);
|
|
break;
|
|
}
|
|
case 0x22: //jne
|
|
{
|
|
var dest = sReader.Read32();
|
|
nextofs = dest;
|
|
string Op = Stack.Pop();
|
|
CodeVertex NewLine = new CodeVertex(VertexType.ConditionalBranch, dest, Op, pos);
|
|
FuncCodeGraph.AddVertex(NewLine);
|
|
|
|
break;
|
|
}
|
|
case 0x23: //jmp
|
|
{
|
|
var dest = sReader.Read32();
|
|
nextofs = dest;
|
|
CodeVertex NewLine = new CodeVertex(VertexType.Branch, dest, "", pos);
|
|
FuncCodeGraph.AddVertex(NewLine);
|
|
break;
|
|
}
|
|
case 0x24: //pop
|
|
{
|
|
string Op = Stack.Pop();
|
|
CodeVertex NewLine = new CodeVertex(VertexType.CodeBlock, -1, Op + ";", pos);
|
|
FuncCodeGraph.AddVertex(NewLine);
|
|
break;
|
|
}
|
|
case 0x25: //int0
|
|
{
|
|
Stack.Push("0");
|
|
break;
|
|
}
|
|
case 0x26: //int1
|
|
{
|
|
Stack.Push("1");
|
|
break;
|
|
}
|
|
}
|
|
if (nextofs > maxofs)
|
|
{
|
|
maxofs = nextofs;
|
|
}
|
|
} while (!IsReturnCommand(command) || sReader.Position <= sTextOffset + maxofs);
|
|
|
|
WriteCode(FuncCodeGraph, IndentL);
|
|
|
|
sWriter.WriteLine();
|
|
|
|
sReader.Back();
|
|
}
|
|
|
|
static void WriteCode(CodeGraph FuncCodeGraph, int Indent)
|
|
{
|
|
sWriter.Write(FuncCodeGraph.OutputCode(Indent));
|
|
}
|
|
|
|
static uint FetchData(int i) {
|
|
sReader.Keep();
|
|
sReader.Goto(sDataOffset + (4 * i));
|
|
var data = sReader.Read32();
|
|
sReader.Back();
|
|
return data;
|
|
}
|
|
static string FetchDataValue(int i) {
|
|
if (i < 0 || i >= sDataCount) {
|
|
return "(NULL)";
|
|
}
|
|
return FetchDataValue(FetchData(i));
|
|
}
|
|
static string FetchDataValue(uint ofs) {
|
|
sReader.Keep();
|
|
sReader.Goto(sDataOffset + (4 * sDataCount) + ofs);
|
|
var data = sReader.ReadString<aZSTR>();
|
|
sReader.Back();
|
|
return data;
|
|
}
|
|
static Symbol FetchSymbol(int i) {
|
|
sReader.Keep();
|
|
sReader.Goto(sSymOffset + (20 * i));
|
|
var symbol = new Symbol(sReader);
|
|
sReader.Back();
|
|
return symbol;
|
|
}
|
|
static Symbol FetchSymbol(Predicate<Symbol> predicate) {
|
|
if (predicate == null) {
|
|
throw new ArgumentNullException("predicate");
|
|
}
|
|
Symbol found = null;
|
|
sReader.Keep();
|
|
sReader.Goto(sSymOffset);
|
|
for (var i = 0; i < sSymCount; ++i) {
|
|
var symbol = new Symbol(sReader);
|
|
if (predicate(symbol)) {
|
|
found = symbol;
|
|
break;
|
|
}
|
|
}
|
|
sReader.Back();
|
|
return found;
|
|
}
|
|
static string FetchSymbolName(Symbol symbol) {
|
|
sReader.Keep();
|
|
sReader.Goto(sSymOffset + (20 * sSymCount) + symbol.StringOffset);
|
|
var name = sReader.ReadString<aZSTR>();
|
|
sReader.Back();
|
|
return name;
|
|
}
|
|
|
|
static bool IsReturnCommand(byte cmd) {
|
|
return (
|
|
cmd == 0x20 || // ret
|
|
cmd == 0x21 || // ret0
|
|
cmd == 0x27 // end
|
|
);
|
|
}
|
|
}
|
|
}
|