From 9424f30243c60da72ef459b8e7c92a427eddf92a Mon Sep 17 00:00:00 2001
From: alyosha-tas <alexei.f.k@gmail.com>
Date: Fri, 20 May 2016 09:06:56 -0400
Subject: [PATCH] pick the correct mapper for Tapper and Congo Bongo

Based off SHA1 hash
---
 .../Consoles/Atari/2600/Atari2600.Core.cs           |  9 +++++++--
 .../Consoles/Atari/2600/Atari2600.cs                | 13 +++++++++++--
 2 files changed, 18 insertions(+), 4 deletions(-)

diff --git a/BizHawk.Emulation.Cores/Consoles/Atari/2600/Atari2600.Core.cs b/BizHawk.Emulation.Cores/Consoles/Atari/2600/Atari2600.Core.cs
index ea0a2112e4..a72c3ebdf9 100644
--- a/BizHawk.Emulation.Cores/Consoles/Atari/2600/Atari2600.Core.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Atari/2600/Atari2600.Core.cs
@@ -241,8 +241,13 @@ namespace BizHawk.Emulation.Cores.Atari.Atari2600
 					_mapper = new mUA();
 					break;
 
-				// Homebrew mappers
-				case "3E":
+                // Special Sega Mapper which has swapped banks
+                case "F8_sega":
+                    _mapper = new mF8_sega();
+                    break;
+
+                // Homebrew mappers
+                case "3E":
 					_mapper = new m3E();
 					break;
 				case "0840":
diff --git a/BizHawk.Emulation.Cores/Consoles/Atari/2600/Atari2600.cs b/BizHawk.Emulation.Cores/Consoles/Atari/2600/Atari2600.cs
index 732cd3a1e6..e8ea919526 100644
--- a/BizHawk.Emulation.Cores/Consoles/Atari/2600/Atari2600.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Atari/2600/Atari2600.cs
@@ -45,8 +45,17 @@ namespace BizHawk.Emulation.Cores.Atari.Atari2600
 				game.AddOption("m", DetectMapper(rom));
 			}
 
-			Console.WriteLine("Game uses mapper " + game.GetOptionsDict()["m"]);
-			RebootCore();
+            if (Rom.HashSHA1() == "3A77DB43B6583E8689435F0F14AA04B9E57BDDED")
+            {
+                game.RemoveOption("m");
+                game.AddOption("m", "F8_sega");
+                Console.WriteLine("here we are");
+
+            }
+
+            Console.WriteLine("Game uses mapper " + game.GetOptionsDict()["m"]);
+            Console.WriteLine(Rom.HashSHA1());
+            RebootCore();
 			SetupMemoryDomains();
 
 			Tracer = new TraceBuffer { Header = Cpu.TraceHeader };