From 1693a2a1edd90c9340a3af60ae78aa33e51a56e0 Mon Sep 17 00:00:00 2001
From: adelikat <adelikat@tasvideos.org>
Date: Sat, 13 Sep 2014 14:21:08 +0000
Subject: [PATCH] Cheats dialog - default to System Bus domain

---
 BizHawk.Client.EmuHawk/tools/Cheats/CheatEdit.cs | 10 +++++++++-
 BizHawk.Emulation.Common/MemoryDomain.cs         | 16 ++++++++++++++++
 2 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/BizHawk.Client.EmuHawk/tools/Cheats/CheatEdit.cs b/BizHawk.Client.EmuHawk/tools/Cheats/CheatEdit.cs
index 0d1e2b8c84..78e6abf776 100644
--- a/BizHawk.Client.EmuHawk/tools/Cheats/CheatEdit.cs
+++ b/BizHawk.Client.EmuHawk/tools/Cheats/CheatEdit.cs
@@ -37,7 +37,15 @@ namespace BizHawk.Client.EmuHawk
 				DomainDropDown.Items.AddRange(Core.MemoryDomains
 					.Select(d => d.ToString())
 					.ToArray());
-				DomainDropDown.SelectedItem = Core.MemoryDomains.MainMemory.ToString();
+
+				if (Core.MemoryDomains.HasSystemBus)
+				{
+					DomainDropDown.SelectedItem = Core.MemoryDomains.SystemBus.ToString();
+				}
+				else
+				{
+					DomainDropDown.SelectedItem = Core.MemoryDomains.MainMemory.ToString();
+				}
 			}
 
 			SetFormToDefault();
diff --git a/BizHawk.Emulation.Common/MemoryDomain.cs b/BizHawk.Emulation.Common/MemoryDomain.cs
index ffb978a23d..387933306a 100644
--- a/BizHawk.Emulation.Common/MemoryDomain.cs
+++ b/BizHawk.Emulation.Common/MemoryDomain.cs
@@ -214,5 +214,21 @@ namespace BizHawk.Emulation.Common
 				return this[_mainMemoryIndex];
 			}
 		}
+
+		public bool HasSystemBus
+		{
+			get
+			{
+				return this.Any(x => x.Name == "System Bus" || x.Name == "BUS"); // Have to account for "BUS" because some developers don't like consistency!
+			}
+		}
+
+		public MemoryDomain SystemBus
+		{
+			get
+			{
+				return this.FirstOrDefault(x => x.Name == "System Bus" || x.Name == "BUS");
+			}
+		}
 	}
 }