From 05a525d2c40cb4e77057b33d726e444046b11392 Mon Sep 17 00:00:00 2001
From: goyuken <goyuken@4bbf4f03-6f44-549e-7e59-35d4b0962838>
Date: Sat, 11 May 2013 23:46:23 +0000
Subject: [PATCH] dual gameboy: on_snoop support.  you get a callback per
 sub-core, as would be expected.

---
 .../Consoles/Nintendo/Gameboy/GambatteLink.cs        | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/BizHawk.Emulation/Consoles/Nintendo/Gameboy/GambatteLink.cs b/BizHawk.Emulation/Consoles/Nintendo/Gameboy/GambatteLink.cs
index 2f485a446c..37fb9c28d5 100644
--- a/BizHawk.Emulation/Consoles/Nintendo/Gameboy/GambatteLink.cs
+++ b/BizHawk.Emulation/Consoles/Nintendo/Gameboy/GambatteLink.cs
@@ -50,6 +50,9 @@ namespace BizHawk.Emulation.Consoles.GB
 			blip_right.SetRates(2097152 * 2, 44100);
 
 			SetMemoryDomains();
+
+			L.CoreComm.InputCallback = CallbackLinker;
+			R.CoreComm.InputCallback = CallbackLinker;
 		}
 
 		public IVideoProvider VideoProvider { get { return this; } }
@@ -71,6 +74,15 @@ namespace BizHawk.Emulation.Consoles.GB
 		public ControllerDefinition ControllerDefinition { get { return DualGbController; } }
 		public IController Controller { get; set; }
 
+		/// <summary>
+		/// each sub-core calls this
+		/// </summary>
+		void CallbackLinker()
+		{
+			if (CoreComm.InputCallback != null)
+				CoreComm.InputCallback();
+		}
+
 		public void FrameAdvance(bool render, bool rendersound = true)
 		{
 			LCont.Clear();