snes: support trace logging GB and SMP cores (C# side and dlls)

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

@@ -108,6 +108,13 @@ namespace BizHawk.Emulation.Cores.Nintendo.SNES
 			NUM
 		};
 
+		public enum eTRACE : uint
+		{
+			CPU = 0,
+			SMP = 1,
+			GB = 2
+		}
+
 		public enum eCDLog_Flags
 		{
 			ExecFirst = 0x01,
@@ -142,7 +149,7 @@ namespace BizHawk.Emulation.Cores.Nintendo.SNES
 		public delegate void snes_audio_sample_t(ushort left, ushort right);
 		public delegate void snes_scanlineStart_t(int line);
 		public delegate string snes_path_request_t(int slot, string hint);
-		public delegate void snes_trace_t(string msg);
+		public delegate void snes_trace_t(uint which, string msg);
 
 
 		public struct CPURegs

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

@@ -85,10 +85,10 @@ namespace BizHawk.Emulation.Cores.Nintendo.SNES
 			Message(eMessage.eMessage_QUERY_state_hook_write);
 		}
 
-		public void QUERY_set_trace_callback(snes_trace_t callback)
+		public void QUERY_set_trace_callback(int mask, snes_trace_t callback)
 		{
 			this.traceCallback = callback;
-			comm->value = (callback != null) ? 1u : 0u;
+			comm->value = (uint)mask;
 			Message(eMessage.eMessage_QUERY_enable_trace);
 		}
 		public void QUERY_set_scanlineStart(snes_scanlineStart_t scanlineStart)

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

@@ -71,7 +71,7 @@ namespace BizHawk.Emulation.Cores.Nintendo.SNES
 				case eMessage.eMessage_SIG_trace_callback:
 					{
 						if (traceCallback != null)
-							traceCallback(comm->GetAscii());
+							traceCallback(comm->value, comm->GetAscii());
 						break;
 					}
 				case eMessage.eMessage_SIG_allocSharedMemory:

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

@@ -24,11 +24,16 @@ namespace BizHawk.Emulation.Cores.Nintendo.SNES
 
 			if (!_nocallbacks && _tracer.Enabled)
 			{
-				Api.QUERY_set_trace_callback(_tracecb);
+				//Api.QUERY_set_trace_callback(1<<(int)LibsnesApi.eTRACE.SMP, _tracecb); //TEST -- it works but theres no way to control it from the frontend now
+
+				if(IsSGB)
+					Api.QUERY_set_trace_callback(1<<(int)LibsnesApi.eTRACE.GB, _tracecb);
+				else
+					Api.QUERY_set_trace_callback(1<<(int)LibsnesApi.eTRACE.CPU, _tracecb);
 			}
 			else
 			{
-				Api.QUERY_set_trace_callback(null);
+				Api.QUERY_set_trace_callback(0,null);
 			}
 
 			// for deterministic emulation, save the state we're going to use before frame advance

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

@@ -323,18 +323,43 @@ namespace BizHawk.Emulation.Cores.Nintendo.SNES
 			return test;
 		}
 
-		private void snes_trace(string msg)
+		private void snes_trace(uint which, string msg)
 		{
 			// TODO: get them out of the core split up and remove this hackery
-			string splitStr = "A:";
+			const string splitStr = "A:";
 
-			var split = msg.Split(new[] {splitStr }, 2, StringSplitOptions.None);
-
-			_tracer.Put(new TraceInfo
+			if (which == (uint)LibsnesApi.eTRACE.CPU)
 			{
-				Disassembly = split[0].PadRight(34),
-				RegisterInfo = splitStr + split[1]
-			});
+				var split = msg.Split(new[] { splitStr }, 2, StringSplitOptions.None);
+
+				_tracer.Put(new TraceInfo
+				{
+					Disassembly = split[0].PadRight(34),
+					RegisterInfo = splitStr + split[1]
+				});
+			}
+			else if (which == (uint)LibsnesApi.eTRACE.SMP)
+			{
+				int idx = msg.IndexOf("YA:");
+				string dis = msg.Substring(0,idx).TrimEnd();
+				string regs = msg.Substring(idx);
+				_tracer.Put(new TraceInfo
+				{
+					Disassembly = dis,
+					RegisterInfo = regs
+				});
+			}
+			else if (which == (uint)LibsnesApi.eTRACE.GB)
+			{
+				int idx = msg.IndexOf("AF:");
+				string dis = msg.Substring(0,idx).TrimEnd();
+				string regs = msg.Substring(idx);
+				_tracer.Put(new TraceInfo
+				{
+					Disassembly = dis,
+					RegisterInfo = regs
+				});
+			}
 		}
 
 		private void SetPalette(SnesColors.ColorType pal)