Added ARM9 Decompression and more

ARM9 decompression is done by executing the rom until the point it is
decompressed. This means that it should work with all compressed games.
- Removed Property Grid from FileBrowser
- Added ARM9 extraction and decompression to the NDS Viewer

EveryFileExplorer/EveryFileExplorer.csproj

@@ -65,16 +65,12 @@
     <Compile Include="Properties\AssemblyInfo.cs" />
     <EmbeddedResource Include="Form1.resx">
       <DependentUpon>Form1.cs</DependentUpon>
+      <SubType>Designer</SubType>
     </EmbeddedResource>
     <EmbeddedResource Include="Properties\Resources.resx">
       <Generator>ResXFileCodeGenerator</Generator>
-      <LastGenOutput>Resources.Designer.cs</LastGenOutput>
       <SubType>Designer</SubType>
     </EmbeddedResource>
-    <Compile Include="Properties\Resources.Designer.cs">
-      <AutoGen>True</AutoGen>
-      <DependentUpon>Resources.resx</DependentUpon>
-    </Compile>
     <None Include="Properties\Settings.settings">
       <Generator>SettingsSingleFileGenerator</Generator>
       <LastGenOutput>Settings.Designer.cs</LastGenOutput>

EveryFileExplorer/Properties/Resources.Designer.cs

@@ -1,71 +0,0 @@
-//------------------------------------------------------------------------------
-// <auto-generated>
-//     This code was generated by a tool.
-//     Runtime Version:4.0.30319.18063
-//
-//     Changes to this file may cause incorrect behavior and will be lost if
-//     the code is regenerated.
-// </auto-generated>
-//------------------------------------------------------------------------------
-
-namespace EveryFileExplorer.Properties
-{
-
-
-	/// <summary>
-	///   A strongly-typed resource class, for looking up localized strings, etc.
-	/// </summary>
-	// This class was auto-generated by the StronglyTypedResourceBuilder
-	// class via a tool like ResGen or Visual Studio.
-	// To add or remove a member, edit your .ResX file then rerun ResGen
-	// with the /str option, or rebuild your VS project.
-	[global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "4.0.0.0")]
-	[global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
-	[global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-	internal class Resources
-	{
-
-		private static global::System.Resources.ResourceManager resourceMan;
-
-		private static global::System.Globalization.CultureInfo resourceCulture;
-
-		[global::System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
-		internal Resources()
-		{
-		}
-
-		/// <summary>
-		///   Returns the cached ResourceManager instance used by this class.
-		/// </summary>
-		[global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
-		internal static global::System.Resources.ResourceManager ResourceManager
-		{
-			get
-			{
-				if ((resourceMan == null))
-				{
-					global::System.Resources.ResourceManager temp = new global::System.Resources.ResourceManager("EveryFileExplorer.Properties.Resources", typeof(Resources).Assembly);
-					resourceMan = temp;
-				}
-				return resourceMan;
-			}
-		}
-
-		/// <summary>
-		///   Overrides the current thread's CurrentUICulture property for all
-		///   resource lookups using this strongly typed resource class.
-		/// </summary>
-		[global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
-		internal static global::System.Globalization.CultureInfo Culture
-		{
-			get
-			{
-				return resourceCulture;
-			}
-			set
-			{
-				resourceCulture = value;
-			}
-		}
-	}
-}

LibEveryFileExplorer/LibEveryFileExplorer.csproj

@@ -117,6 +117,7 @@
     <EmbeddedResource Include="Resource.resx">
       <Generator>ResXFileCodeGenerator</Generator>
       <LastGenOutput>Resource.Designer.cs</LastGenOutput>
+      <SubType>Designer</SubType>
     </EmbeddedResource>
     <EmbeddedResource Include="UI\FileBrowser.resx">
       <DependentUpon>FileBrowser.cs</DependentUpon>

LibEveryFileExplorer/UI/FileBrowser.Designer.cs

@@ -31,10 +31,6 @@
 			System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(FileBrowser));
 			this.splitContainer1 = new System.Windows.Forms.SplitContainer();
 			this.treeView1 = new System.Windows.Forms.TreeView();
-			this.splitContainer2 = new System.Windows.Forms.SplitContainer();
-			this.listView1 = new LibEveryFileExplorer.UI.ListViewNF();
-			this.columnHeader1 = ((System.Windows.Forms.ColumnHeader)(new System.Windows.Forms.ColumnHeader()));
-			this.columnHeader2 = ((System.Windows.Forms.ColumnHeader)(new System.Windows.Forms.ColumnHeader()));
 			this.toolStrip1 = new System.Windows.Forms.ToolStrip();
 			this.buttonDirAdd = new System.Windows.Forms.ToolStripButton();
 			this.buttonFileAdd = new System.Windows.Forms.ToolStripButton();
@@ -42,15 +38,13 @@
 			this.buttonDelete = new System.Windows.Forms.ToolStripButton();
 			this.toolStripSeparator2 = new System.Windows.Forms.ToolStripSeparator();
 			this.buttonRename = new System.Windows.Forms.ToolStripButton();
-			this.propertyGrid1 = new System.Windows.Forms.PropertyGrid();
+			this.listView1 = new LibEveryFileExplorer.UI.ListViewNF();
+			this.columnHeader1 = ((System.Windows.Forms.ColumnHeader)(new System.Windows.Forms.ColumnHeader()));
+			this.columnHeader2 = ((System.Windows.Forms.ColumnHeader)(new System.Windows.Forms.ColumnHeader()));
 			((System.ComponentModel.ISupportInitialize)(this.splitContainer1)).BeginInit();
 			this.splitContainer1.Panel1.SuspendLayout();
 			this.splitContainer1.Panel2.SuspendLayout();
 			this.splitContainer1.SuspendLayout();
-			((System.ComponentModel.ISupportInitialize)(this.splitContainer2)).BeginInit();
-			this.splitContainer2.Panel1.SuspendLayout();
-			this.splitContainer2.Panel2.SuspendLayout();
-			this.splitContainer2.SuspendLayout();
 			this.toolStrip1.SuspendLayout();
 			this.SuspendLayout();
 			// 
@@ -67,7 +61,8 @@
 			// 
 			// splitContainer1.Panel2
 			// 
-			this.splitContainer1.Panel2.Controls.Add(this.splitContainer2);
+			this.splitContainer1.Panel2.Controls.Add(this.listView1);
+			this.splitContainer1.Panel2.Controls.Add(this.toolStrip1);
 			this.splitContainer1.Size = new System.Drawing.Size(700, 391);
 			this.splitContainer1.SplitterDistance = 175;
 			this.splitContainer1.TabIndex = 0;
@@ -86,51 +81,6 @@
 			this.treeView1.TabIndex = 0;
 			this.treeView1.AfterSelect += new System.Windows.Forms.TreeViewEventHandler(this.treeView1_AfterSelect);
 			// 
-			// splitContainer2
-			// 
-			this.splitContainer2.Dock = System.Windows.Forms.DockStyle.Fill;
-			this.splitContainer2.FixedPanel = System.Windows.Forms.FixedPanel.Panel2;
-			this.splitContainer2.Location = new System.Drawing.Point(0, 0);
-			this.splitContainer2.Name = "splitContainer2";
-			// 
-			// splitContainer2.Panel1
-			// 
-			this.splitContainer2.Panel1.Controls.Add(this.listView1);
-			this.splitContainer2.Panel1.Controls.Add(this.toolStrip1);
-			// 
-			// splitContainer2.Panel2
-			// 
-			this.splitContainer2.Panel2.Controls.Add(this.propertyGrid1);
-			this.splitContainer2.Size = new System.Drawing.Size(521, 391);
-			this.splitContainer2.SplitterDistance = 346;
-			this.splitContainer2.TabIndex = 0;
-			// 
-			// listView1
-			// 
-			this.listView1.Columns.AddRange(new System.Windows.Forms.ColumnHeader[] {
-            this.columnHeader1,
-            this.columnHeader2});
-			this.listView1.Dock = System.Windows.Forms.DockStyle.Fill;
-			this.listView1.Location = new System.Drawing.Point(0, 25);
-			this.listView1.MultiSelect = false;
-			this.listView1.Name = "listView1";
-			this.listView1.Size = new System.Drawing.Size(346, 366);
-			this.listView1.TabIndex = 0;
-			this.listView1.TileSize = new System.Drawing.Size(168, 36);
-			this.listView1.UseCompatibleStateImageBehavior = false;
-			this.listView1.View = System.Windows.Forms.View.Tile;
-			this.listView1.ItemActivate += new System.EventHandler(this.listView1_ItemActivate);
-			this.listView1.SelectedIndexChanged += new System.EventHandler(this.listView1_SelectedIndexChanged);
-			this.listView1.MouseClick += new System.Windows.Forms.MouseEventHandler(this.listView1_MouseClick);
-			// 
-			// columnHeader1
-			// 
-			this.columnHeader1.Text = "Name";
-			// 
-			// columnHeader2
-			// 
-			this.columnHeader2.Text = "Size";
-			// 
 			// toolStrip1
 			// 
 			this.toolStrip1.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
@@ -142,7 +92,7 @@
             this.buttonRename});
 			this.toolStrip1.Location = new System.Drawing.Point(0, 0);
 			this.toolStrip1.Name = "toolStrip1";
-			this.toolStrip1.Size = new System.Drawing.Size(346, 25);
+			this.toolStrip1.Size = new System.Drawing.Size(521, 25);
 			this.toolStrip1.TabIndex = 1;
 			this.toolStrip1.Text = "toolStrip1";
 			// 
@@ -196,13 +146,31 @@
 			this.buttonRename.Text = "Rename";
 			this.buttonRename.Click += new System.EventHandler(this.buttonRename_Click);
 			// 
-			// propertyGrid1
+			// listView1
 			// 
-			this.propertyGrid1.Dock = System.Windows.Forms.DockStyle.Fill;
+			this.listView1.Columns.AddRange(new System.Windows.Forms.ColumnHeader[] {
-			this.propertyGrid1.Location = new System.Drawing.Point(0, 0);
+            this.columnHeader1,
-			this.propertyGrid1.Name = "propertyGrid1";
+            this.columnHeader2});
-			this.propertyGrid1.Size = new System.Drawing.Size(171, 391);
+			this.listView1.Dock = System.Windows.Forms.DockStyle.Fill;
-			this.propertyGrid1.TabIndex = 0;
+			this.listView1.Location = new System.Drawing.Point(0, 25);
+			this.listView1.MultiSelect = false;
+			this.listView1.Name = "listView1";
+			this.listView1.Size = new System.Drawing.Size(521, 366);
+			this.listView1.TabIndex = 0;
+			this.listView1.TileSize = new System.Drawing.Size(168, 36);
+			this.listView1.UseCompatibleStateImageBehavior = false;
+			this.listView1.View = System.Windows.Forms.View.Tile;
+			this.listView1.ItemActivate += new System.EventHandler(this.listView1_ItemActivate);
+			this.listView1.SelectedIndexChanged += new System.EventHandler(this.listView1_SelectedIndexChanged);
+			this.listView1.MouseClick += new System.Windows.Forms.MouseEventHandler(this.listView1_MouseClick);
+			// 
+			// columnHeader1
+			// 
+			this.columnHeader1.Text = "Name";
+			// 
+			// columnHeader2
+			// 
+			this.columnHeader2.Text = "Size";
 			// 
 			// FileBrowser
 			// 
@@ -214,13 +182,9 @@
 			this.Load += new System.EventHandler(this.FileBrowser_Load);
 			this.splitContainer1.Panel1.ResumeLayout(false);
 			this.splitContainer1.Panel2.ResumeLayout(false);
+			this.splitContainer1.Panel2.PerformLayout();
 			((System.ComponentModel.ISupportInitialize)(this.splitContainer1)).EndInit();
 			this.splitContainer1.ResumeLayout(false);
-			this.splitContainer2.Panel1.ResumeLayout(false);
-			this.splitContainer2.Panel1.PerformLayout();
-			this.splitContainer2.Panel2.ResumeLayout(false);
-			((System.ComponentModel.ISupportInitialize)(this.splitContainer2)).EndInit();
-			this.splitContainer2.ResumeLayout(false);
 			this.toolStrip1.ResumeLayout(false);
 			this.toolStrip1.PerformLayout();
 			this.ResumeLayout(false);
@@ -231,17 +195,15 @@
 
 		private System.Windows.Forms.SplitContainer splitContainer1;
 		private System.Windows.Forms.TreeView treeView1;
-		private System.Windows.Forms.SplitContainer splitContainer2;
 		private ListViewNF listView1;
-		private System.Windows.Forms.PropertyGrid propertyGrid1;
+		private System.Windows.Forms.ColumnHeader columnHeader1;
+		private System.Windows.Forms.ColumnHeader columnHeader2;
 		private System.Windows.Forms.ToolStrip toolStrip1;
 		private System.Windows.Forms.ToolStripButton buttonDirAdd;
 		private System.Windows.Forms.ToolStripButton buttonFileAdd;
+		private System.Windows.Forms.ToolStripSeparator toolStripSeparator1;
+		private System.Windows.Forms.ToolStripButton buttonDelete;
 		private System.Windows.Forms.ToolStripSeparator toolStripSeparator2;
 		private System.Windows.Forms.ToolStripButton buttonRename;
-		private System.Windows.Forms.ToolStripButton buttonDelete;
-		private System.Windows.Forms.ToolStripSeparator toolStripSeparator1;
-		private System.Windows.Forms.ColumnHeader columnHeader1;
-		private System.Windows.Forms.ColumnHeader columnHeader2;
 	}
 }

NDS/CPU/ARM9.cs

@@ -0,0 +1,433 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using LibEveryFileExplorer.IO;
+
+namespace NDS.CPU
+{
+	public class ARM9
+	{
+		public static byte[] Decompress(byte[] Compressed, uint RamAddress, uint EntryAddress, uint AutoloadDone)
+		{
+			ARM9Context c = new ARM9Context();
+			c.Registers[15] = EntryAddress;
+			Array.Copy(Compressed, 0, c.Memory, RamAddress, Compressed.Length);
+			uint stopaddress;
+			while (true)
+			{
+				ExecuteInstruction(c);
+				if (c.Registers[15] == AutoloadDone)
+				{
+					//Now we know the address of do_autoload + 4, which is MIi_UncompressBackward + 8
+					stopaddress = c.Registers[14] - 4;
+					break;
+				}
+			}
+			c = new ARM9Context();
+			c.Registers[15] = EntryAddress;
+			Array.Copy(Compressed, 0, c.Memory, RamAddress, Compressed.Length);
+			uint length = 0;
+			uint compoffsaddr = 0;
+			while (true)
+			{
+				ExecuteInstruction(c);
+				if (c.Registers[15] == stopaddress - 4)
+				{
+					//look if the file is compressed (R0 = 0 means the data is not compressed!)
+					if (c.Registers[0] == 0) return Compressed;
+					length = c.Registers[0] + IOUtil.ReadU32LE(c.Memory, (int)c.Registers[0] - 4) - RamAddress;
+					compoffsaddr = c.Registers[1] + 0x14 - RamAddress;
+				}
+				//we're done decompressing!
+				if (c.Registers[15] == stopaddress) break;
+			}
+			byte[] result = new byte[length];
+			Array.Copy(c.Memory, RamAddress, result, 0, length);
+			IOUtil.WriteU32LE(result, (int)compoffsaddr, 0);
+			return result;
+		}
+
+		private class ARM9Context
+		{
+			public uint[] Registers = new uint[16];
+			public byte[] Memory = new byte[0x8000000];
+			public bool C;
+			public bool N;
+			public bool V;
+			public bool Z;
+		}
+
+		private static void ExecuteInstruction(ARM9Context c)
+		{
+			uint inst = IOUtil.ReadU32LE(c.Memory, (int)c.Registers[15]);
+			uint condition = inst >> 28;
+			if (EvaluateCondition(c, condition))
+			{
+				switch ((inst >> 25) & 7)
+				{
+					case 0:
+					case 1:
+						DataProc(c, inst);
+						c.Registers[15] += 4;
+						break;
+					case 0x2:
+					case 0x3:
+						SingleDataTrans(c, inst);
+						c.Registers[15] += 4;
+						break;
+					case 0x4:
+						BlockDataTrans(c, inst);
+						c.Registers[15] += 4;
+						break;
+					case 0x5://101
+						Branch(c, inst);
+						break;
+					case 0x7:
+						c.Registers[15] += 4;
+						break;//ignore mcr, mrc and that kind of crap
+					default:
+						c.Registers[15] += 4;
+						break;
+				}
+			}
+			else c.Registers[15] += 4;
+		}
+
+		private static UInt32 Shift(UInt32 ShiftType, UInt32 Value, UInt32 NrBits, ref bool Carry)
+		{
+			switch (ShiftType)
+			{
+				case 0:
+					if (NrBits > 0) Carry = ((Value >> (32 - (int)NrBits)) & 1) == 1;
+					return Value << (int)NrBits;
+				case 1:
+					if (NrBits > 0) Carry = ((Value >> ((int)NrBits - 1)) & 1) == 1;
+					else Carry = ((Value >> 31) & 1) == 1;
+					return Value >> (int)NrBits;
+				case 2:
+					if (NrBits > 0)
+					{
+						Carry = ((Value >> ((int)NrBits - 1)) & 1) == 1;
+						return (uint)(((int)Value) >> (int)NrBits);
+					}
+					else
+					{
+						Carry = ((Value >> 31) & 1) == 1;
+						return ((Value >> 31) & 1) * 0xFFFFFFFF;
+					}
+				case 3:
+					if (NrBits > 0)
+					{
+						Carry = ((Value >> ((int)NrBits - 1)) & 1) == 1;
+						return (Value >> (int)NrBits) | (Value << (32 - (int)NrBits));
+					}
+					else
+					{
+						uint tmp = ((Carry ? 1u : 0u) << 31) | (Value >> 1);
+						Carry = (Value & 1) == 1;
+						return tmp;
+					}
+			}
+			return 0xFFFFFFFF;
+		}
+
+		private static void DataProc(ARM9Context c, uint Instruction)
+		{
+			uint result = 0;
+			uint Rn;
+			if ((Instruction & 0x0FFFFF00) == 0x12FFF00)//bx, blx
+			{
+				uint op = (Instruction >> 4) & 0xF;
+				Rn = Instruction & 0xF;
+				if (op == 1)
+				{
+					c.Registers[15] = c.Registers[Rn] - 4;
+				}
+				else if (op == 3)
+				{
+					c.Registers[14] = c.Registers[15] + 4;
+					c.Registers[15] = c.Registers[Rn] - 4;
+				}
+				else
+				{
+					//shouldn't happen!
+				}
+				return;
+			}
+			bool Shift_C = c.C;
+
+			bool I = ((Instruction >> 25) & 1) == 1;
+			uint Opcode = (Instruction >> 21) & 0xF;
+			bool S = ((Instruction >> 20) & 1) == 1;
+			Rn = (Instruction >> 16) & 0xF;
+			uint Rd = (Instruction >> 12) & 0xF;
+			uint Op2 = 0;
+			if (I)
+			{
+				uint Is = (Instruction >> 8) & 0xF;
+				uint nn = Instruction & 0xFF;
+
+				Op2 = (nn >> (int)(Is * 2)) | (nn << (32 - (int)(Is * 2)));
+			}
+			else
+			{
+				uint ShiftType = (Instruction >> 5) & 0x3;
+				bool R = ((Instruction >> 4) & 1) == 1;
+				uint Rm = Instruction & 0xF;
+
+				if (!R)
+				{
+					uint Is = (Instruction >> 7) & 0x1F;
+					Op2 = Shift(ShiftType, c.Registers[Rm], Is, ref Shift_C);
+				}
+				else
+				{
+					uint Rs = (Instruction >> 8) & 0xF;
+					uint Reserved = (Instruction >> 7) & 1;
+					Op2 = Shift(ShiftType, c.Registers[Rm], c.Registers[Rs] & 0xFF, ref Shift_C);
+				}
+			}
+
+			switch (Opcode)
+			{
+				case 0x2://sub
+					result = c.Registers[Rd] = c.Registers[Rn] - Op2;
+					break;
+				case 0x4://add
+					result = c.Registers[Rd] = c.Registers[Rn] + Op2;
+					break;
+				case 0x8:
+					if (S == false)//MRS
+					{
+						break;
+					}
+					else//TST
+					{
+						result = c.Registers[Rn] & Op2;
+					}
+					break;
+				case 0x9:
+					if (S == false)//MSR
+					{
+						break;
+					}
+					else//TEQ
+					{
+						result = c.Registers[Rn] ^ Op2;
+					}
+					break;
+				case 0xA://compare
+					result = c.Registers[Rn] - Op2;
+					break;
+				case 0xC://OR logical 
+					result = c.Registers[Rd] = c.Registers[Rn] | Op2;
+					break;
+				case 0xD://move
+					result = c.Registers[Rd] = Op2;
+					break;
+				case 0xE://bit clear 
+					result = c.Registers[Rd] = c.Registers[Rn] & ~Op2;
+					break;
+				default:
+					break;
+			}
+
+			if (S)
+			{
+				bool V = c.V;//tmp
+				bool C = c.C;//tmp
+				bool Z = result == 0;
+				bool N = (result >> 31) == 1;
+				if (Rd != 15)
+				{
+					switch (Opcode)
+					{
+						case 0:
+						case 1:
+						case 8:
+						case 9:
+						case 12:
+						case 13:
+						case 14:
+						case 15:
+							C = Shift_C;
+							break;
+						//case 2:
+						case 3:
+						case 4:
+						case 5:
+						case 6:
+						case 7:
+						//case 10:
+						case 11:
+							C = !(Op2 > c.Registers[Rn]);
+							break;
+						case 0x2:
+						case 0xA:
+							C = !(Op2 > c.Registers[Rn]);
+							V = ((c.Registers[Rn] < 0 && Op2 >= 0) || (c.Registers[Rn] >= 0 && Op2 < 0)) && ((c.Registers[Rn] < 0 && result >= 0) || (c.Registers[Rn] >= 0 && result < 0));
+							break;
+					}
+					c.C = C;
+					c.N = N;
+					c.V = V;
+					c.Z = Z;
+				}
+			}
+
+		}
+
+		private static void SingleDataTrans(ARM9Context c, UInt32 Instruction)
+		{
+			bool I = ((Instruction >> 25) & 1) == 1;
+			bool P = ((Instruction >> 24) & 1) == 1;
+			bool U = ((Instruction >> 23) & 1) == 1;
+			bool B = ((Instruction >> 22) & 1) == 1;
+
+			bool T = false;
+			bool W = false;
+
+			if (P) W = ((Instruction >> 21) & 1) == 1;
+			else T = ((Instruction >> 21) & 1) == 1;
+
+			bool L = ((Instruction >> 20) & 1) == 1;
+
+			uint Rn = (Instruction >> 16) & 0xF;
+			uint Rd = (Instruction >> 12) & 0xF;
+
+			uint Offset;
+			if (I)
+			{
+				uint Is = (Instruction >> 7) & 0x1F;
+				uint ShiftType = (Instruction >> 5) & 0x3;
+				uint Reserved = (Instruction >> 4) & 1;
+				uint Rm = Instruction & 0xF;
+				bool Shift_C = c.C;
+				Offset = Shift(ShiftType, c.Registers[Rm], Is, ref Shift_C);
+			}
+			else
+			{
+				Offset = Instruction & 0xFFF;
+			}
+
+			uint MemoryOffset = c.Registers[Rn];
+			if (Rn == 15) MemoryOffset += 8;
+			if (P)
+			{
+				if (U) MemoryOffset += Offset;
+				else MemoryOffset -= Offset;
+				if (W) c.Registers[Rn] = MemoryOffset;
+			}
+			if (L)
+			{
+				if (B)
+				{
+					try
+					{
+						c.Registers[Rd] = c.Memory[MemoryOffset];
+					}
+					catch { }
+				}
+				else c.Registers[Rd] = IOUtil.ReadU32LE(c.Memory, (int)MemoryOffset);
+			}
+			else
+			{
+				if (Rd == 15)
+				{
+					if (B) c.Memory[MemoryOffset] = (byte)((c.Registers[Rd] + 12) & 0xFF);
+					else Array.Copy(BitConverter.GetBytes(c.Registers[Rd] + 12), 0, c.Memory, MemoryOffset, 4);
+				}
+				else
+				{
+					if (B) c.Memory[MemoryOffset] = (byte)(c.Registers[Rd] & 0xFF);
+					else Array.Copy(BitConverter.GetBytes(c.Registers[Rd]), 0, c.Memory, MemoryOffset, 4);
+				}
+			}
+			if (!P)
+			{
+				if (U) MemoryOffset += Offset;
+				else MemoryOffset -= Offset;
+				c.Registers[Rn] = MemoryOffset;
+			}
+		}
+
+		private static void BlockDataTrans(ARM9Context c, UInt32 Instruction)
+		{
+			bool P = ((Instruction >> 24) & 1) == 1;
+			bool U = ((Instruction >> 23) & 1) == 1;
+			bool S = ((Instruction >> 22) & 1) == 1;
+			bool W = ((Instruction >> 21) & 1) == 1;
+			bool L = ((Instruction >> 20) & 1) == 1;
+			uint Rn = (Instruction >> 16) & 0xF;
+			uint RList = Instruction & 0xFFFF;
+
+			if (!U && ((RList >> 15) & 1) == 1)
+			{
+				//TODO!
+			}
+
+			uint offs = c.Registers[Rn];
+			for (int i = 0; i < 15; i++)
+			{
+				int reg;
+				if (U) reg = i;
+				else reg = 14 - i;
+				if (((RList >> reg) & 1) == 1)
+				{
+					if (P)
+					{
+						if (U) offs += 4;
+						else offs -= 4;
+					}
+					if (L) c.Registers[reg] = IOUtil.ReadU32LE(c.Memory, (int)offs);
+					else IOUtil.WriteU32LE(c.Memory, (int)offs, c.Registers[reg]);
+					if (!P)
+					{
+						if (U) offs += 4;
+						else offs -= 4;
+					}
+				}
+			}
+			if (U && ((RList >> 15) & 1) == 1)
+			{
+				//TODO!
+			}
+			if (W) c.Registers[Rn] = offs;
+		}
+
+		private static void Branch(ARM9Context c, UInt32 Instruction)
+		{
+			uint Opcode = (Instruction >> 24) & 1;
+			int nn = (int)((Instruction & 0xFFFFFF) << 8) >> 8;
+			if (Opcode == 1) 
+				c.Registers[14] = c.Registers[15] + 4;
+			c.Registers[15] = (uint)((int)c.Registers[15] + 8 + nn * 4);
+		}
+
+		private static bool EvaluateCondition(ARM9Context c, uint condition)
+		{
+			switch (condition)
+			{
+				case 0x0: return c.Z == true;
+				case 0x1: return c.Z == false;
+				case 0x2: return c.C == true;
+				case 0x3: return c.C == false;
+				case 0x4: return c.N == true;
+				case 0x5: return c.N == false;
+				case 0x6: return c.V == true;
+				case 0x7: return c.V == false;
+				case 0x8: return c.C == true && c.Z == false;
+				case 0x9: return c.C == false || c.Z == true;
+				case 0xA: return c.N == c.V;
+				case 0xB: return c.N != c.V;
+				case 0xC: return c.Z == false && c.N == c.V;
+				case 0xD: return c.Z == true || c.N != c.V;
+				case 0xE: return true;
+				case 0xF: return false;
+			}
+			//shouldn't happen!
+			return false;
+		}
+	}
+}

NDS/CPU/ASMHackInfo.cs

@@ -0,0 +1,109 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Xml.Serialization;
+using System.IO;
+
+namespace NDS.CPU
+{
+	[Serializable]
+	[XmlRoot("ASMHack")]
+	public class ASMHackInfo
+	{
+		public ASMHackInfo() { }
+		public ASMHackInfo(NDS Rom, UInt32 AreaLo)
+		{
+			AddressInfo.RamAddress = Rom.Header.MainRamAddress;
+			AddressInfo.EntryAddress = Rom.Header.MainEntryAddress;
+			AddressInfo.AutoloadDoneAddress = Rom.Header.MainAutoloadDone;
+			AddressInfo.ArenaLo = AreaLo;
+			//Default:
+			InPath = "arm9.bin";
+			OutPath = "arm9_new.bin";
+		}
+
+		[XmlElement("Addresses")]
+		public Addresses AddressInfo = new Addresses();
+		public class Addresses : IXmlSerializable
+		{
+			public UInt32 RamAddress;
+			public UInt32 EntryAddress;
+			public UInt32 AutoloadDoneAddress;
+			public UInt32 ArenaLo;
+
+			public System.Xml.Schema.XmlSchema GetSchema()
+			{
+				return null;
+			}
+
+			public void ReadXml(System.Xml.XmlReader reader)
+			{
+				reader.ReadStartElement("RamAddress");
+				{
+					RamAddress = uint.Parse(reader.ReadString().Replace("0x", ""), System.Globalization.NumberStyles.HexNumber);
+				}
+				reader.ReadEndElement();
+				reader.ReadStartElement("EntryAddress");
+				{
+					EntryAddress = uint.Parse(reader.ReadString().Replace("0x", ""), System.Globalization.NumberStyles.HexNumber);
+				}
+				reader.ReadEndElement();
+				reader.ReadStartElement("AutoloadDoneAddress");
+				{
+					AutoloadDoneAddress = uint.Parse(reader.ReadString().Replace("0x", ""), System.Globalization.NumberStyles.HexNumber);
+				}
+				reader.ReadEndElement();
+				reader.ReadStartElement("ArenaLo");
+				{
+					ArenaLo = uint.Parse(reader.ReadString().Replace("0x", ""), System.Globalization.NumberStyles.HexNumber);
+				}
+				reader.ReadEndElement();
+			}
+
+			public void WriteXml(System.Xml.XmlWriter writer)
+			{
+				writer.WriteStartElement("RamAddress");
+				{
+					writer.WriteString("0x" + RamAddress.ToString("X8"));
+				}
+				writer.WriteEndElement();
+				writer.WriteStartElement("EntryAddress");
+				{
+					writer.WriteString("0x" + EntryAddress.ToString("X8"));
+				}
+				writer.WriteEndElement();
+				writer.WriteStartElement("AutoloadDoneAddress");
+				{
+					writer.WriteString("0x" + AutoloadDoneAddress.ToString("X8"));
+				}
+				writer.WriteEndElement();
+				writer.WriteStartElement("ArenaLo");
+				{
+					writer.WriteString("0x" + ArenaLo.ToString("X8"));
+				}
+				writer.WriteEndElement();
+			}
+		}
+		public String InPath;
+		public String OutPath;
+
+		public static ASMHackInfo FromByteArray(byte[] Data)
+		{
+			XmlSerializer s = new XmlSerializer(typeof(ASMHackInfo));
+			return (ASMHackInfo)s.Deserialize(new MemoryStream(Data));
+		}
+
+		public byte[] Write()
+		{
+			XmlSerializerNamespaces ns = new XmlSerializerNamespaces();
+			ns.Add("", "");
+			XmlSerializer s = new XmlSerializer(typeof(ASMHackInfo));
+			MemoryStream m = new MemoryStream();
+			s.Serialize(m, this, ns);
+			byte[] data = m.ToArray();
+			m.Close();
+			return data;
+		}
+	}
+}

NDS/NDS.cs

@@ -8,6 +8,7 @@ using System.Drawing;
 using System.Windows.Forms;
 using LibEveryFileExplorer.Files.SimpleFileSystem;
 using NDS.UI;
+using NDS.CPU;
 
 namespace NDS
 {
@@ -16,39 +17,38 @@ namespace NDS
 		public NDS(byte[] data)
 		{
 			EndianBinaryReader er = new EndianBinaryReader(new MemoryStream(data), Endianness.LittleEndian);
-			header = new ROM_Header(er);
+			Header = new RomHeader(er);
 
-			er.BaseStream.Position = header.main_rom_offset;
+			er.BaseStream.Position = Header.MainRomOffset;
-			main_rom = er.ReadBytes((int)header.main_size);
+			MainRom = er.ReadBytes((int)Header.MainSize);
 
-			er.BaseStream.Position = header.sub_rom_offset;
+			er.BaseStream.Position = Header.SubRomOffset;
-			sub_rom = er.ReadBytes((int)header.sub_size);
+			SubRom = er.ReadBytes((int)Header.SubSize);
 
-			er.BaseStream.Position = header.fnt_offset;
+			er.BaseStream.Position = Header.FntOffset;
-			fnt = new ROM_FNT(er);
+			Fnt = new RomFNT(er);
 
-			er.BaseStream.Position = header.main_ovt_offset;
+			er.BaseStream.Position = Header.MainOvtOffset;
-			main_ovt = new ROM_OVT[header.main_ovt_size / 32];
+			MainOvt = new RomOVT[Header.MainOvtSize / 32];
-			for (int i = 0; i < header.main_ovt_size / 32; i++) main_ovt[i] = new ROM_OVT(er);
+			for (int i = 0; i < Header.MainOvtSize / 32; i++) MainOvt[i] = new RomOVT(er);
 
-			er.BaseStream.Position = header.sub_ovt_offset;
+			er.BaseStream.Position = Header.SubOvtOffset;
-			sub_ovt = new ROM_OVT[header.sub_ovt_size / 32];
+			SubOvt = new RomOVT[Header.SubOvtSize / 32];
-			for (int i = 0; i < header.sub_ovt_size / 32; i++) sub_ovt[i] = new ROM_OVT(er);
+			for (int i = 0; i < Header.SubOvtSize / 32; i++) SubOvt[i] = new RomOVT(er);
 
-			er.BaseStream.Position = header.fat_offset;
+			er.BaseStream.Position = Header.FatOffset;
-			fat = new FileAllocationEntry[header.fat_size / 8];
+			Fat = new FileAllocationEntry[Header.FatSize / 8];
-			for (int i = 0; i < header.fat_size / 8; i++) fat[i] = new FileAllocationEntry(er);
+			for (int i = 0; i < Header.FatSize / 8; i++) Fat[i] = new FileAllocationEntry(er);
 
-			er.BaseStream.Position = header.banner_offset;
+			er.BaseStream.Position = Header.BannerOffset;
-			banner = new BannerFile(er);
+			Banner = new RomBanner(er);
 
-			FileData = new byte[header.fat_size / 8][];
+			FileData = new byte[Header.FatSize / 8][];
-			for (int i = 0; i < header.fat_size / 8; i++)
+			for (int i = 0; i < Header.FatSize / 8; i++)
 			{
-				er.BaseStream.Position = fat[i].fileTop;
+				er.BaseStream.Position = Fat[i].fileTop;
-				FileData[i] = er.ReadBytes((int)fat[i].fileSize);
+				FileData[i] = er.ReadBytes((int)Fat[i].fileSize);
 			}
-
 			er.Close();
 		}
 
@@ -57,214 +57,214 @@ namespace NDS
 			return new NDSViewer(this);
 		}
 
-		public ROM_Header header;
+		public RomHeader Header;
-		public class ROM_Header
+		public class RomHeader
 		{
-			public ROM_Header(EndianBinaryReader er)
+			public RomHeader(EndianBinaryReader er)
 			{
-				game_name = er.ReadString(Encoding.ASCII, 12).Replace("\0", "");
+				GameName = er.ReadString(Encoding.ASCII, 12).Replace("\0", "");
-				game_code = er.ReadString(Encoding.ASCII, 4).Replace("\0", "");
+				GameCode = er.ReadString(Encoding.ASCII, 4).Replace("\0", "");
-				maker_code = er.ReadString(Encoding.ASCII, 2).Replace("\0", "");
+				MakerCode = er.ReadString(Encoding.ASCII, 2).Replace("\0", "");
-				product_id = er.ReadByte();
+				ProductId = er.ReadByte();
-				device_type = er.ReadByte();
+				DeviceType = er.ReadByte();
-				device_size = er.ReadByte();
+				DeviceSize = er.ReadByte();
-				reserved_A = er.ReadBytes(9);
+				ReservedA = er.ReadBytes(9);
-				game_version = er.ReadByte();
+				GameVersion = er.ReadByte();
-				property = er.ReadByte();
+				Property = er.ReadByte();
 
-				main_rom_offset = er.ReadUInt32();
+				MainRomOffset = er.ReadUInt32();
-				main_entry_address = er.ReadUInt32();
+				MainEntryAddress = er.ReadUInt32();
-				main_ram_address = er.ReadUInt32();
+				MainRamAddress = er.ReadUInt32();
-				main_size = er.ReadUInt32();
+				MainSize = er.ReadUInt32();
-				sub_rom_offset = er.ReadUInt32();
+				SubRomOffset = er.ReadUInt32();
-				sub_entry_address = er.ReadUInt32();
+				SubEntryAddress = er.ReadUInt32();
-				sub_ram_address = er.ReadUInt32();
+				SubRamAddress = er.ReadUInt32();
-				sub_size = er.ReadUInt32();
+				SubSize = er.ReadUInt32();
 
-				fnt_offset = er.ReadUInt32();
+				FntOffset = er.ReadUInt32();
-				fnt_size = er.ReadUInt32();
+				FntSize = er.ReadUInt32();
 
-				fat_offset = er.ReadUInt32();
+				FatOffset = er.ReadUInt32();
-				fat_size = er.ReadUInt32();
+				FatSize = er.ReadUInt32();
 
-				main_ovt_offset = er.ReadUInt32();
+				MainOvtOffset = er.ReadUInt32();
-				main_ovt_size = er.ReadUInt32();
+				MainOvtSize = er.ReadUInt32();
 
-				sub_ovt_offset = er.ReadUInt32();
+				SubOvtOffset = er.ReadUInt32();
-				sub_ovt_size = er.ReadUInt32();
+				SubOvtSize = er.ReadUInt32();
 
-				rom_param_A = er.ReadBytes(8);
+				RomParamA = er.ReadBytes(8);
-				banner_offset = er.ReadUInt32();
+				BannerOffset = er.ReadUInt32();
-				secure_crc = er.ReadUInt16();
+				SecureCRC = er.ReadUInt16();
-				rom_param_B = er.ReadBytes(2);
+				RomParamB = er.ReadBytes(2);
 
-				main_autoload_done = er.ReadUInt32();
+				MainAutoloadDone = er.ReadUInt32();
-				sub_autoload_done = er.ReadUInt32();
+				SubAutoloadDone = er.ReadUInt32();
 
-				rom_param_C = er.ReadBytes(8);
+				RomParamC = er.ReadBytes(8);
-				rom_size = er.ReadUInt32();
+				RomSize = er.ReadUInt32();
-				header_size = er.ReadUInt32();
+				HeaderSize = er.ReadUInt32();
-				reserved_B = er.ReadBytes(0x38);
+				ReservedB = er.ReadBytes(0x38);
 
-				logo_data = er.ReadBytes(0x9C);
+				LogoData = er.ReadBytes(0x9C);
-				logo_crc = er.ReadUInt16();
+				LogoCRC = er.ReadUInt16();
-				header_crc = er.ReadUInt16();
+				HeaderCRC = er.ReadUInt16();
 			}
-			public String game_name;//12
+			public String GameName;//12
-			public String game_code;//4
+			public String GameCode;//4
-			public String maker_code;//2
+			public String MakerCode;//2
-			public Byte product_id;
+			public Byte ProductId;
-			public Byte device_type;
+			public Byte DeviceType;
-			public Byte device_size;
+			public Byte DeviceSize;
-			public byte[] reserved_A;//9
+			public byte[] ReservedA;//9
-			public Byte game_version;
+			public Byte GameVersion;
-			public Byte property;
+			public Byte Property;
 
-			public UInt32 main_rom_offset;
+			public UInt32 MainRomOffset;
-			public UInt32 main_entry_address;
+			public UInt32 MainEntryAddress;
-			public UInt32 main_ram_address;
+			public UInt32 MainRamAddress;
-			public UInt32 main_size;
+			public UInt32 MainSize;
-			public UInt32 sub_rom_offset;
+			public UInt32 SubRomOffset;
-			public UInt32 sub_entry_address;
+			public UInt32 SubEntryAddress;
-			public UInt32 sub_ram_address;
+			public UInt32 SubRamAddress;
-			public UInt32 sub_size;
+			public UInt32 SubSize;
 
-			public UInt32 fnt_offset;
+			public UInt32 FntOffset;
-			public UInt32 fnt_size;
+			public UInt32 FntSize;
 
-			public UInt32 fat_offset;
+			public UInt32 FatOffset;
-			public UInt32 fat_size;
+			public UInt32 FatSize;
 
-			public UInt32 main_ovt_offset;
+			public UInt32 MainOvtOffset;
-			public UInt32 main_ovt_size;
+			public UInt32 MainOvtSize;
 
-			public UInt32 sub_ovt_offset;
+			public UInt32 SubOvtOffset;
-			public UInt32 sub_ovt_size;
+			public UInt32 SubOvtSize;
 
-			public byte[] rom_param_A;//8
+			public byte[] RomParamA;//8
-			public UInt32 banner_offset;
+			public UInt32 BannerOffset;
-			public UInt16 secure_crc;
+			public UInt16 SecureCRC;
-			public byte[] rom_param_B;//2
+			public byte[] RomParamB;//2
 
-			public UInt32 main_autoload_done;
+			public UInt32 MainAutoloadDone;
-			public UInt32 sub_autoload_done;
+			public UInt32 SubAutoloadDone;
 
-			public byte[] rom_param_C;//8
+			public byte[] RomParamC;//8
-			public UInt32 rom_size;
+			public UInt32 RomSize;
-			public UInt32 header_size;
+			public UInt32 HeaderSize;
-			public byte[] reserved_B;//0x38
+			public byte[] ReservedB;//0x38
 
-			public byte[] logo_data;//0x9C
+			public byte[] LogoData;//0x9C
-			public UInt16 logo_crc;
+			public UInt16 LogoCRC;
-			public UInt16 header_crc;
+			public UInt16 HeaderCRC;
 		}
-		public Byte[] main_rom;
+		public Byte[] MainRom;
-		public Byte[] sub_rom;
+		public Byte[] SubRom;
-		public ROM_FNT fnt;
+		public RomFNT Fnt;
-		public class ROM_FNT
+		public class RomFNT
 		{
-			public ROM_FNT(EndianBinaryReader er)
+			public RomFNT(EndianBinaryReader er)
 			{
-				directoryTable = new List<DirectoryTableEntry>();
+				DirectoryTable = new List<DirectoryTableEntry>();
-				directoryTable.Add(new DirectoryTableEntry(er));
+				DirectoryTable.Add(new DirectoryTableEntry(er));
-				for (int i = 0; i < directoryTable[0].dirParentID - 1; i++)
+				for (int i = 0; i < DirectoryTable[0].dirParentID - 1; i++)
 				{
-					directoryTable.Add(new DirectoryTableEntry(er));
+					DirectoryTable.Add(new DirectoryTableEntry(er));
 				}
-				entryNameTable = new List<EntryNameTableEntry>();
+				EntryNameTable = new List<EntryNameTableEntry>();
 				int dirend = 0;
-				while (dirend < directoryTable[0].dirParentID)
+				while (dirend < DirectoryTable[0].dirParentID)
 				{
 					byte entryNameLength = er.ReadByte();
 					er.BaseStream.Position--;
 					if (entryNameLength == 0)
 					{
-						entryNameTable.Add(new EntryNameTableEndOfDirectoryEntry(er));
+						EntryNameTable.Add(new EntryNameTableEndOfDirectoryEntry(er));
 						dirend++;
 					}
-					else if (entryNameLength < 0x80) entryNameTable.Add(new EntryNameTableFileEntry(er));
+					else if (entryNameLength < 0x80) EntryNameTable.Add(new EntryNameTableFileEntry(er));
-					else entryNameTable.Add(new EntryNameTableDirectoryEntry(er));
+					else EntryNameTable.Add(new EntryNameTableDirectoryEntry(er));
 				}
 			}
-			public List<DirectoryTableEntry> directoryTable;
+			public List<DirectoryTableEntry> DirectoryTable;
-			public List<EntryNameTableEntry> entryNameTable;
+			public List<EntryNameTableEntry> EntryNameTable;
 		}
-		public ROM_OVT[] main_ovt;
+		public RomOVT[] MainOvt;
-		public ROM_OVT[] sub_ovt;
+		public RomOVT[] SubOvt;
-		public class ROM_OVT
+		public class RomOVT
 		{
 			[Flags]
-			public enum OVT_Flag : byte
+			public enum OVTFlag : byte
 			{
 				Compressed = 1,
-				Authentication_Code = 2
+				AuthenticationCode = 2
 			}
-			public ROM_OVT(EndianBinaryReader er)
+			public RomOVT(EndianBinaryReader er)
 			{
-				id = er.ReadUInt32();
+				Id = er.ReadUInt32();
-				ram_address = er.ReadUInt32();
+				RamAddress = er.ReadUInt32();
-				ram_size = er.ReadUInt32();
+				RamSize = er.ReadUInt32();
-				bss_size = er.ReadUInt32();
+				BssSize = er.ReadUInt32();
-				sinit_init = er.ReadUInt32();
+				SinitInit = er.ReadUInt32();
-				sinit_init_end = er.ReadUInt32();
+				SinitInitEnd = er.ReadUInt32();
-				file_id = er.ReadUInt32();
+				FileId = er.ReadUInt32();
 				UInt32 tmp = er.ReadUInt32();
-				compressed = tmp & 0xFFFFFF;
+				Compressed = tmp & 0xFFFFFF;
-				flag = (OVT_Flag)(tmp >> 24);
+				Flag = (OVTFlag)(tmp >> 24);
 			}
-			public UInt32 id;
+			public UInt32 Id;
-			public UInt32 ram_address;
+			public UInt32 RamAddress;
-			public UInt32 ram_size;
+			public UInt32 RamSize;
-			public UInt32 bss_size;
+			public UInt32 BssSize;
-			public UInt32 sinit_init;
+			public UInt32 SinitInit;
-			public UInt32 sinit_init_end;
+			public UInt32 SinitInitEnd;
-			public UInt32 file_id;
+			public UInt32 FileId;
 
-			public UInt32 compressed;//:24;
+			public UInt32 Compressed;//:24;
-			public OVT_Flag flag;// :8;
+			public OVTFlag Flag;// :8;
 		}
-		public FileAllocationEntry[] fat;
+		public FileAllocationEntry[] Fat;
-		public BannerFile banner;
+		public RomBanner Banner;
-		public class BannerFile
+		public class RomBanner
 		{
-			public BannerFile(EndianBinaryReader er)
+			public RomBanner(EndianBinaryReader er)
 			{
-				h = new BannerHeader(er);
+				Header = new BannerHeader(er);
-				v1 = new BannerFileV1(er);
+				Banner = new BannerV1(er);
 			}
-			BannerHeader h;
+			BannerHeader Header;
 			public class BannerHeader
 			{
 				public BannerHeader(EndianBinaryReader er)
 				{
-					version = er.ReadByte();
+					Version = er.ReadByte();
-					reserved_A = er.ReadByte();
+					ReservedA = er.ReadByte();
-					crc16_v1 = er.ReadUInt16();
+					CRC16_v1 = er.ReadUInt16();
-					reserved_B = er.ReadBytes(28);
+					ReservedB = er.ReadBytes(28);
 				}
-				public Byte version;
+				public Byte Version;
-				public Byte reserved_A;
+				public Byte ReservedA;
-				public UInt16 crc16_v1;
+				public UInt16 CRC16_v1;
-				public Byte[] reserved_B;//28
+				public Byte[] ReservedB;//28
 			}
-			BannerFileV1 v1;
+			BannerV1 Banner;
-			public class BannerFileV1
+			public class BannerV1
 			{
-				public BannerFileV1(EndianBinaryReader er)
+				public BannerV1(EndianBinaryReader er)
 				{
-					image = er.ReadBytes(32 * 32 / 2);
+					Image = er.ReadBytes(32 * 32 / 2);
-					pltt = er.ReadBytes(16 * 2);
+					Pltt = er.ReadBytes(16 * 2);
-					gameName = new string[6];
+					GameName = new string[6];
-					gameName[0] = er.ReadString(Encoding.Unicode, 128).Replace("\0", "");
+					GameName[0] = er.ReadString(Encoding.Unicode, 128).Replace("\0", "");
-					gameName[1] = er.ReadString(Encoding.Unicode, 128).Replace("\0", "");
+					GameName[1] = er.ReadString(Encoding.Unicode, 128).Replace("\0", "");
-					gameName[2] = er.ReadString(Encoding.Unicode, 128).Replace("\0", "");
+					GameName[2] = er.ReadString(Encoding.Unicode, 128).Replace("\0", "");
-					gameName[3] = er.ReadString(Encoding.Unicode, 128).Replace("\0", "");
+					GameName[3] = er.ReadString(Encoding.Unicode, 128).Replace("\0", "");
-					gameName[4] = er.ReadString(Encoding.Unicode, 128).Replace("\0", "");
+					GameName[4] = er.ReadString(Encoding.Unicode, 128).Replace("\0", "");
-					gameName[5] = er.ReadString(Encoding.Unicode, 128).Replace("\0", "");
+					GameName[5] = er.ReadString(Encoding.Unicode, 128).Replace("\0", "");
 				}
-				public Byte[] image;//32*32/2
+				public Byte[] Image;//32*32/2
-				public Byte[] pltt;//16*2
+				public Byte[] Pltt;//16*2
-				public String[] gameName;//6, 128 chars (UTF16-LE)
+				public String[] GameName;//6, 128 chars (UTF16-LE)
 			}
 		}
 		public Byte[][] FileData;
@@ -276,14 +276,14 @@ namespace NDS
 			dirs.Add(new SFSDirectory("/", true));
 			dirs[0].DirectoryID = 0xF000;
 
-			uint nrdirs = fnt.directoryTable[0].dirParentID;
+			uint nrdirs = Fnt.DirectoryTable[0].dirParentID;
 			for (int i = 1; i < nrdirs; i++)
 			{
 				dirs.Add(new SFSDirectory((ushort)(0xF000 + i)));
 			}
 			for (int i = 1; i < nrdirs; i++)
 			{
-				if (fnt.directoryTable[i].dirParentID - 0xF000 == i)
+				if (Fnt.DirectoryTable[i].dirParentID - 0xF000 == i)
 				{
 					treereconstruct = true;
 					foreach (var v in dirs)
@@ -292,7 +292,7 @@ namespace NDS
 					}
 					break;
 				}
-				dirs[i].Parent = dirs[fnt.directoryTable[i].dirParentID - 0xF000];
+				dirs[i].Parent = dirs[Fnt.DirectoryTable[i].dirParentID - 0xF000];
 			}
 			if (!treereconstruct)
 			{
@@ -308,13 +308,13 @@ namespace NDS
 				}
 			}
 			uint offset = nrdirs * 8;
-			ushort fileid = fnt.directoryTable[0].dirEntryFileID;
+			ushort fileid = Fnt.DirectoryTable[0].dirEntryFileID;
 			SFSDirectory curdir = null;
-			foreach (EntryNameTableEntry e in fnt.entryNameTable)
+			foreach (EntryNameTableEntry e in Fnt.EntryNameTable)
 			{
 				for (int i = 0; i < nrdirs; i++)
 				{
-					if (offset == fnt.directoryTable[i].dirEntryStart)
+					if (offset == Fnt.DirectoryTable[i].dirEntryStart)
 					{
 						curdir = dirs[i];
 						break;
@@ -341,7 +341,7 @@ namespace NDS
 					offset += 3u + (e.entryNameLength & 0x7Fu);
 				}
 			}
-			for (int i = (int)(header.main_ovt_size / 32 + header.sub_ovt_size / 32); i < header.fat_size / 8; i++)
+			for (int i = (int)(Header.MainOvtSize / 32 + Header.SubOvtSize / 32); i < Header.FatSize / 8; i++)
 			{
 				//byte[] data = new byte[fat[i].fileSize];
 				//Array.Copy(FileData FIMG.fileImage, fat[i].fileTop, data, 0, data.Length);
@@ -350,6 +350,11 @@ namespace NDS
 			return dirs[0];
 		}
 
+		public byte[] GetDecompressedARM9()
+		{
+			return ARM9.Decompress(MainRom, Header.MainRamAddress, Header.MainEntryAddress, Header.MainAutoloadDone);
+		}
+
 		public class NDSIdentifier : FileFormatIdentifier
 		{
 			public override string GetCategory()

NDS/NDS.csproj

@@ -52,6 +52,8 @@
     </Reference>
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="CPU\ARM9.cs" />
+    <Compile Include="CPU\ASMHackInfo.cs" />
     <Compile Include="GPU\CommandContext.cs" />
     <Compile Include="GPU\Textures.cs" />
     <Compile Include="NDS.cs" />

NDS/UI/NDSViewer.Designer.cs

@@ -53,6 +53,20 @@
 			this.menuItem10 = new System.Windows.Forms.MenuItem();
 			this.menuItem11 = new System.Windows.Forms.MenuItem();
 			this.saveFileDialog1 = new System.Windows.Forms.SaveFileDialog();
+			this.splitContainer1 = new System.Windows.Forms.SplitContainer();
+			this.tabControl1 = new System.Windows.Forms.TabControl();
+			this.tabPage1 = new System.Windows.Forms.TabPage();
+			this.tabPage2 = new System.Windows.Forms.TabPage();
+			this.groupBox1 = new System.Windows.Forms.GroupBox();
+			this.button1 = new System.Windows.Forms.Button();
+			this.button2 = new System.Windows.Forms.Button();
+			((System.ComponentModel.ISupportInitialize)(this.splitContainer1)).BeginInit();
+			this.splitContainer1.Panel1.SuspendLayout();
+			this.splitContainer1.Panel2.SuspendLayout();
+			this.splitContainer1.SuspendLayout();
+			this.tabControl1.SuspendLayout();
+			this.tabPage2.SuspendLayout();
+			this.groupBox1.SuspendLayout();
 			this.SuspendLayout();
 			// 
 			// fileBrowser1
@@ -66,7 +80,7 @@
 			this.fileBrowser1.ShowAddFileButton = false;
 			this.fileBrowser1.ShowDeleteButton = false;
 			this.fileBrowser1.ShowRenameButton = false;
-			this.fileBrowser1.Size = new System.Drawing.Size(652, 338);
+			this.fileBrowser1.Size = new System.Drawing.Size(475, 338);
 			this.fileBrowser1.TabIndex = 0;
 			this.fileBrowser1.OnDirectoryChanged += new LibEveryFileExplorer.UI.FileBrowser.OnDirectoryChangedEventHandler(this.fileBrowser1_OnDirectoryChanged);
 			this.fileBrowser1.OnFileActivated += new LibEveryFileExplorer.UI.FileBrowser.OnFileActivatedEventHandler(this.fileBrowser1_OnFileActivated);
@@ -233,17 +247,109 @@
 			// 
 			this.saveFileDialog1.Title = "Export...";
 			// 
+			// splitContainer1
+			// 
+			this.splitContainer1.Dock = System.Windows.Forms.DockStyle.Fill;
+			this.splitContainer1.FixedPanel = System.Windows.Forms.FixedPanel.Panel2;
+			this.splitContainer1.Location = new System.Drawing.Point(0, 0);
+			this.splitContainer1.Name = "splitContainer1";
+			// 
+			// splitContainer1.Panel1
+			// 
+			this.splitContainer1.Panel1.Controls.Add(this.fileBrowser1);
+			// 
+			// splitContainer1.Panel2
+			// 
+			this.splitContainer1.Panel2.Controls.Add(this.tabControl1);
+			this.splitContainer1.Size = new System.Drawing.Size(652, 338);
+			this.splitContainer1.SplitterDistance = 475;
+			this.splitContainer1.TabIndex = 1;
+			// 
+			// tabControl1
+			// 
+			this.tabControl1.Controls.Add(this.tabPage1);
+			this.tabControl1.Controls.Add(this.tabPage2);
+			this.tabControl1.Dock = System.Windows.Forms.DockStyle.Fill;
+			this.tabControl1.Location = new System.Drawing.Point(0, 0);
+			this.tabControl1.Name = "tabControl1";
+			this.tabControl1.SelectedIndex = 0;
+			this.tabControl1.Size = new System.Drawing.Size(173, 338);
+			this.tabControl1.TabIndex = 0;
+			// 
+			// tabPage1
+			// 
+			this.tabPage1.Location = new System.Drawing.Point(4, 22);
+			this.tabPage1.Name = "tabPage1";
+			this.tabPage1.Padding = new System.Windows.Forms.Padding(3);
+			this.tabPage1.Size = new System.Drawing.Size(165, 312);
+			this.tabPage1.TabIndex = 0;
+			this.tabPage1.Text = "Banner";
+			this.tabPage1.UseVisualStyleBackColor = true;
+			// 
+			// tabPage2
+			// 
+			this.tabPage2.Controls.Add(this.groupBox1);
+			this.tabPage2.Location = new System.Drawing.Point(4, 22);
+			this.tabPage2.Name = "tabPage2";
+			this.tabPage2.Padding = new System.Windows.Forms.Padding(3);
+			this.tabPage2.Size = new System.Drawing.Size(165, 312);
+			this.tabPage2.TabIndex = 1;
+			this.tabPage2.Text = "Code";
+			this.tabPage2.UseVisualStyleBackColor = true;
+			// 
+			// groupBox1
+			// 
+			this.groupBox1.Controls.Add(this.button1);
+			this.groupBox1.Controls.Add(this.button2);
+			this.groupBox1.Dock = System.Windows.Forms.DockStyle.Top;
+			this.groupBox1.Location = new System.Drawing.Point(3, 3);
+			this.groupBox1.Name = "groupBox1";
+			this.groupBox1.Padding = new System.Windows.Forms.Padding(3, 3, 3, 6);
+			this.groupBox1.Size = new System.Drawing.Size(159, 68);
+			this.groupBox1.TabIndex = 0;
+			this.groupBox1.TabStop = false;
+			this.groupBox1.Text = "ARM9";
+			// 
+			// button1
+			// 
+			this.button1.Dock = System.Windows.Forms.DockStyle.Top;
+			this.button1.Location = new System.Drawing.Point(3, 39);
+			this.button1.Name = "button1";
+			this.button1.Size = new System.Drawing.Size(153, 23);
+			this.button1.TabIndex = 0;
+			this.button1.Text = "Export Decompressed...";
+			this.button1.UseVisualStyleBackColor = true;
+			this.button1.Click += new System.EventHandler(this.button1_Click);
+			// 
+			// button2
+			// 
+			this.button2.Dock = System.Windows.Forms.DockStyle.Top;
+			this.button2.Location = new System.Drawing.Point(3, 16);
+			this.button2.Name = "button2";
+			this.button2.Size = new System.Drawing.Size(153, 23);
+			this.button2.TabIndex = 1;
+			this.button2.Text = "Export...";
+			this.button2.UseVisualStyleBackColor = true;
+			this.button2.Click += new System.EventHandler(this.button2_Click);
+			// 
 			// NDSViewer
 			// 
 			this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
 			this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
 			this.ClientSize = new System.Drawing.Size(652, 338);
-			this.Controls.Add(this.fileBrowser1);
+			this.Controls.Add(this.splitContainer1);
 			this.Icon = ((System.Drawing.Icon)(resources.GetObject("$this.Icon")));
 			this.Menu = this.mainMenu1;
 			this.Name = "NDSViewer";
 			this.Text = "NARC Viewer";
 			this.Load += new System.EventHandler(this.NARCViewer_Load);
+			this.splitContainer1.Panel1.ResumeLayout(false);
+			this.splitContainer1.Panel2.ResumeLayout(false);
+			((System.ComponentModel.ISupportInitialize)(this.splitContainer1)).EndInit();
+			this.splitContainer1.ResumeLayout(false);
+			this.tabControl1.ResumeLayout(false);
+			this.tabPage2.ResumeLayout(false);
+			this.groupBox1.ResumeLayout(false);
 			this.ResumeLayout(false);
 
 		}
@@ -273,5 +379,12 @@
 		private System.Windows.Forms.SaveFileDialog saveFileDialog1;
 		private System.Windows.Forms.MenuItem menuReplace;
 		private System.Windows.Forms.MenuItem menuItem14;
+		private System.Windows.Forms.SplitContainer splitContainer1;
+		private System.Windows.Forms.TabControl tabControl1;
+		private System.Windows.Forms.TabPage tabPage1;
+		private System.Windows.Forms.TabPage tabPage2;
+		private System.Windows.Forms.GroupBox groupBox1;
+		private System.Windows.Forms.Button button1;
+		private System.Windows.Forms.Button button2;
 	}
 }

NDS/UI/NDSViewer.cs

@@ -10,6 +10,7 @@ using LibEveryFileExplorer.Files.SimpleFileSystem;
 using LibEveryFileExplorer;
 using LibEveryFileExplorer.Files;
 using NDS.NitroSystem.FND;
+using System.IO;
 
 namespace NDS.UI
 {
@@ -232,5 +233,29 @@ namespace NDS.UI
 			fileBrowser1.UpdateDirectories(Root.GetTreeNodes(), true);
 			*/
 		}
+
+		private void button1_Click(object sender, EventArgs e)
+		{
+			saveFileDialog1.FileName = "arm9.bin";
+			saveFileDialog1.Filter = "Binary Data (*.bin)|*.bin";
+			if (saveFileDialog1.ShowDialog() == System.Windows.Forms.DialogResult.OK
+				&& saveFileDialog1.FileName.Length > 0)
+			{
+				File.Create(saveFileDialog1.FileName).Close();
+				File.WriteAllBytes(saveFileDialog1.FileName, Archive.GetDecompressedARM9());
+			}
+		}
+
+		private void button2_Click(object sender, EventArgs e)
+		{
+			saveFileDialog1.FileName = "arm9.bin";
+			saveFileDialog1.Filter = "Binary Data (*.bin)|*.bin";
+			if (saveFileDialog1.ShowDialog() == System.Windows.Forms.DialogResult.OK
+				&& saveFileDialog1.FileName.Length > 0)
+			{
+				File.Create(saveFileDialog1.FileName).Close();
+				File.WriteAllBytes(saveFileDialog1.FileName, Archive.MainRom);
+			}
+		}
 	}
 }