Debugger UI skeleton.

src/Xenia.Debug/Breakpoint.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Xenia.Debug.Utilities;
+
+namespace Xenia.Debug {
+  public class Breakpoint : Changeable {
+    // type code/data/kernel
+    // address+[end address]
+    // conditions? script?
+    // action (suspend, trace, etc)
+  }
+}

src/Xenia.Debug/BreakpointList.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Xenia.Debug.Utilities;
+
+namespace Xenia.Debug {
+  public class BreakpointList : Changeable {
+    private readonly List<Breakpoint> breakpoints = new List<Breakpoint>();
+
+    public void Add(Breakpoint breakpoint) {
+    }
+
+    public void Remove(Breakpoint breakpoint) {
+    }
+
+    public void Clear() {
+    }
+  }
+}

src/Xenia.Debug/Callstack.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Xenia.Debug {
+  public class Callstack {
+  }
+}

src/Xenia.Debug/DebugClient.cs

@@ -0,0 +1,10 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Xenia.Debug {
+  public class DebugClient {
+  }
+}

src/Xenia.Debug/Debugger.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Xenia.Debug {
+  public class Debugger {
+    public DebugClient DebugClient {
+      get;
+    }
+
+    public BreakpointList BreakpointList {
+      get;
+    }
+    public FunctionList FunctionList {
+      get;
+    }
+    public Memory Memory {
+      get;
+    }
+    public ModuleList ModuleList {
+      get;
+    }
+    public ThreadList ThreadList {
+      get;
+    }
+  
+    public Debugger() {
+      this.DebugClient = new DebugClient();
+
+      this.BreakpointList = new BreakpointList();
+      this.FunctionList = new FunctionList();
+      this.Memory = new Memory();
+      this.ModuleList = new ModuleList();
+      this.ThreadList = new ThreadList();
+    }
+
+    public bool Open() {
+      return true;
+    }
+
+    public delegate void ChangedEventHandler(EventArgs e);
+
+    public event ChangedEventHandler Changed;
+
+    private void OnChanged(EventArgs e) {
+      if (Changed != null) {
+        Changed(e);
+      }
+    }
+  }
+}

src/Xenia.Debug/Function.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Xenia.Debug.Utilities;
+
+namespace Xenia.Debug {
+  public class Function : Changeable {
+  }
+}

src/Xenia.Debug/FunctionList.cs

@@ -0,0 +1,11 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Xenia.Debug.Utilities;
+
+namespace Xenia.Debug {
+  public class FunctionList : Changeable {
+  }
+}

src/Xenia.Debug/Memory.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Xenia.Debug.Utilities;
+
+namespace Xenia.Debug {
+  public class Memory : Changeable {
+    public MemoryView CreateView() {
+      return new MemoryView(this);
+    }
+  }
+}

src/Xenia.Debug/MemoryView.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Xenia.Debug.Utilities;
+
+namespace Xenia.Debug {
+  public class MemoryView : Changeable {
+    private readonly Memory memory;
+
+    public MemoryView(Memory memory) {
+      this.memory = memory;
+    }
+  }
+}

src/Xenia.Debug/Module.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Xenia.Debug.Utilities;
+
+namespace Xenia.Debug {
+  public class Module : Changeable {
+  }
+}

src/Xenia.Debug/ModuleList.cs

@@ -0,0 +1,11 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Xenia.Debug.Utilities;
+
+namespace Xenia.Debug {
+  public class ModuleList : Changeable {
+  }
+}

src/Xenia.Debug/Thread.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Xenia.Debug.Utilities;
+
+namespace Xenia.Debug {
+  public class ThreadContext {
+  }
+
+  public class Thread : Changeable {
+  }
+}

src/Xenia.Debug/ThreadList.cs

@@ -0,0 +1,11 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Xenia.Debug.Utilities;
+
+namespace Xenia.Debug {
+  public class ThreadList : Changeable {
+  }
+}

src/Xenia.Debug/Utilities/Changeable.cs

@@ -0,0 +1,31 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Xenia.Debug.Utilities {
+  public delegate void ChangedEventHandler();
+
+  public class Changeable {
+    private int changeDepth;
+    public event ChangedEventHandler Changed;
+
+    protected void BeginChanging() {
+      ++changeDepth;
+    }
+
+    protected void EndChanging() {
+      if (--changeDepth == 0) {
+        OnChanged();
+      }
+    }
+
+    protected void OnChanged() {
+      System.Diagnostics.Debug.Assert(changeDepth == 0);
+      if (Changed != null) {
+        Changed();
+      }
+    }
+  }
+}

src/Xenia.Debug/Xenia.Debug.csproj

@@ -43,7 +43,21 @@
     <Reference Include="System.Xml" />
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="Breakpoint.cs" />
+    <Compile Include="BreakpointList.cs" />
+    <Compile Include="Callstack.cs" />
+    <Compile Include="DebugClient.cs" />
+    <Compile Include="Debugger.cs" />
+    <Compile Include="Function.cs" />
+    <Compile Include="FunctionList.cs" />
+    <Compile Include="Memory.cs" />
+    <Compile Include="MemoryView.cs" />
+    <Compile Include="Module.cs" />
+    <Compile Include="ModuleList.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="Thread.cs" />
+    <Compile Include="ThreadList.cs" />
+    <Compile Include="Utilities\Changeable.cs" />
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it.