CDL - fix snes games with no cartram

BizHawk.Emulation.Common/CodeDataLog.cs

@@ -48,6 +48,11 @@ namespace BizHawk.Emulation.Common
 		/// </summary>
 		Dictionary<string, GCHandle> Pins = new Dictionary<string, GCHandle>();
 
+		/// <summary>
+		/// Whether the CDL is tracking a block with the given name
+		/// </summary>
+		public bool Has(string blockname) { return ContainsKey(blockname); }
+
 		/// <summary>
 		/// This is just a hook, if needed, to readily suspend logging, without having to rewire the core
 		/// </summary>

BizHawk.Emulation.Cores/Consoles/Nintendo/SNES/LibsnesApi_QUERY.cs

@@ -209,9 +209,17 @@ namespace BizHawk.Emulation.Cores.Nintendo.SNES
 			{
 				WritePipePointer(cdl.GetPin("CARTROM"),false);
 				bwPipe.Write(cdl["CARTROM"].Length);
-				
-				WritePipePointer(cdl.GetPin("CARTRAM"), false);
-				bwPipe.Write(cdl["CARTRAM"].Length);
+
+				if (cdl.Has("CARTRAM"))
+				{
+					WritePipePointer(cdl.GetPin("CARTRAM"), false);
+					bwPipe.Write(cdl["CARTRAM"].Length);
+				}
+				else
+				{
+					WritePipePointer(IntPtr.Zero);
+					WritePipePointer(IntPtr.Zero);
+				}
 				
 				WritePipePointer(cdl.GetPin("WRAM"));
 				bwPipe.Write(cdl["WRAM"].Length);

BizHawk.Emulation.Cores/Consoles/Nintendo/SNES/LibsnesCore.cs

@@ -185,7 +185,10 @@ namespace BizHawk.Emulation.Cores.Nintendo.SNES
 		public void NewCDL(CodeDataLog cdl)
 		{
 			cdl["CARTROM"] = new byte[MemoryDomains["CARTROM"].Size];
-			cdl["CARTRAM"] = new byte[MemoryDomains["CARTRAM"].Size];
+
+			if (MemoryDomains.Has("CARTRAM"))
+				cdl["CARTRAM"] = new byte[MemoryDomains["CARTRAM"].Size];
+
 			cdl["WRAM"] = new byte[MemoryDomains["WRAM"].Size];
 			cdl["APURAM"] = new byte[MemoryDomains["APURAM"].Size];
 

BizHawk.Emulation.Cores/Consoles/Nintendo/SNES/SNESGraphicsDecoder.cs

@@ -5,6 +5,10 @@
 //helpful detailed reg list
 //http://wiki.superfamicom.org/snes/show/Registers
 
+//TODO
+//SF2 title art doesnt seem to show up.. 
+//scanline control doesnt work?
+
 using System;
 
 namespace BizHawk.Emulation.Cores.Nintendo.SNES