From 5b97e5c7f63fadda8ee075a760643c1767485a27 Mon Sep 17 00:00:00 2001
From: nattthebear <goyuken@gmail.com>
Date: Fri, 11 Aug 2017 19:42:53 -0400
Subject: [PATCH] Add ICycleTiming interface plus one implementation so I can
 feel like I did something

---
 .../BizHawk.Emulation.Common.csproj           |  1 +
 .../Interfaces/Services/ICycleTiming.cs       | 20 +++++++++++++++++++
 .../Consoles/Nintendo/Gameboy/Gambatte.cs     |  5 +++--
 3 files changed, 24 insertions(+), 2 deletions(-)
 create mode 100644 BizHawk.Emulation.Common/Interfaces/Services/ICycleTiming.cs

diff --git a/BizHawk.Emulation.Common/BizHawk.Emulation.Common.csproj b/BizHawk.Emulation.Common/BizHawk.Emulation.Common.csproj
index c9919ebed4..af786ec123 100644
--- a/BizHawk.Emulation.Common/BizHawk.Emulation.Common.csproj
+++ b/BizHawk.Emulation.Common/BizHawk.Emulation.Common.csproj
@@ -91,6 +91,7 @@
     <Compile Include="Interfaces\IEmulatorServiceProvider.cs" />
     <Compile Include="Interfaces\Services\IBoardInfo.cs" />
     <Compile Include="Interfaces\Services\ICreateGameDBEntries.cs" />
+    <Compile Include="Interfaces\Services\ICycleTiming.cs" />
     <Compile Include="Interfaces\Services\ISoundProvider.cs" />
     <Compile Include="Interfaces\Services\ICodeDataLogger.cs" />
     <Compile Include="Interfaces\Services\IDebuggable.cs" />
diff --git a/BizHawk.Emulation.Common/Interfaces/Services/ICycleTiming.cs b/BizHawk.Emulation.Common/Interfaces/Services/ICycleTiming.cs
new file mode 100644
index 0000000000..5fd648e9f7
--- /dev/null
+++ b/BizHawk.Emulation.Common/Interfaces/Services/ICycleTiming.cs
@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace BizHawk.Emulation.Common
+{
+	public interface ICycleTiming
+	{
+		/// <summary>
+		/// Total elapsed emulation time relative to <see cref="ClockRate"/>
+		/// </summary>
+		long CycleCount { get; }
+		/// <summary>
+		/// Clock Rate in hz for <see cref="CycleCount"/>
+		/// </summary>
+		double ClockRate { get; }
+	}
+}
diff --git a/BizHawk.Emulation.Cores/Consoles/Nintendo/Gameboy/Gambatte.cs b/BizHawk.Emulation.Cores/Consoles/Nintendo/Gameboy/Gambatte.cs
index 864cdd856d..3f67fa612e 100644
--- a/BizHawk.Emulation.Cores/Consoles/Nintendo/Gameboy/Gambatte.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Nintendo/Gameboy/Gambatte.cs
@@ -19,7 +19,7 @@ namespace BizHawk.Emulation.Cores.Nintendo.Gameboy
 	[ServiceNotApplicable(typeof(IDriveLight), typeof(IDriveLight))]
 	public partial class Gameboy : IEmulator, IVideoProvider, ISoundProvider, ISaveRam, IStatable, IInputPollable, ICodeDataLogger,
 		IBoardInfo, IDebuggable, ISettable<Gameboy.GambatteSettings, Gameboy.GambatteSyncSettings>,
-		IGameboyCommon
+		IGameboyCommon, ICycleTiming
 	{
 		[CoreConstructor("GB", "GBC")]
 		public Gameboy(CoreComm comm, GameInfo game, byte[] file, object settings, object syncSettings, bool deterministic)
@@ -253,7 +253,8 @@ namespace BizHawk.Emulation.Cores.Nintendo.Gameboy
 		/// number of extra cycles we overran in the last frame
 		/// </summary>
 		private uint frameOverflow = 0;
-		public ulong CycleCount => _cycleCount;
+		public long CycleCount => (long)_cycleCount;
+		public double ClockRate => TICKSPERSECOND;
 
 		#endregion