Disassembler: mouse wheel scrolling

BizHawk.Client.EmuHawk/tools/Debugger/GenericDebugger.Designer.cs

@@ -261,6 +261,7 @@
 			this.DisassemblerView.Scroll += new System.Windows.Forms.ScrollEventHandler(this.DisassemblerView_Scroll);
 			this.DisassemblerView.SizeChanged += new System.EventHandler(this.DisassemblerView_SizeChanged);
 			this.DisassemblerView.KeyDown += new System.Windows.Forms.KeyEventHandler(this.DisassemblerView_KeyDown);
+			this.DisassemblerView.MouseWheel += new System.Windows.Forms.MouseEventHandler(this.DisassemblerView_Wheel);
 			// 
 			// Address
 			// 

BizHawk.Client.EmuHawk/tools/Debugger/GenericDebugger.Disassembler.cs

@@ -148,6 +148,35 @@ namespace BizHawk.Client.EmuHawk
 			}
 		}
 
+		private void DisassemblerView_Wheel(object sender, MouseEventArgs e)
+		{
+			if (e.Delta > 0)
+			{
+				SmallDecrement();
+			}
+			if (e.Delta > 120)
+			{
+				SmallDecrement();
+			}
+			if (e.Delta > 240)
+			{
+				SmallDecrement();
+			}
+
+			if (e.Delta < 0)
+			{
+				SmallIncrement();		
+			}
+			if (e.Delta < -120)
+			{
+				SmallIncrement();
+			}
+			if (e.Delta < -240)
+			{
+				SmallIncrement();
+			}
+		}
+
 		private void SetDisassemblerItemCount()
 		{
 			DisassemblerView.ItemCount = DisassemblerView.NumberOfVisibleRows + 1;