pce - add input callback

forgot this

waterbox/nyma/NymaCore.cpp

@@ -27,6 +27,7 @@ enum { MAX_PORT_DATA = 16 };
 static uint8_t InputPortData[(MAX_PORTS + 1) * MAX_PORT_DATA];
 
 bool LagFlag;
+void (*InputCallback)();
 
 ECL_EXPORT void PreInit()
 {
@@ -195,7 +196,9 @@ ECL_EXPORT void SetLayers(uint64_t layers)
 }
 
 ECL_EXPORT void SetInputCallback(void (*cb)())
-{}
+{
+	InputCallback = cb;
+}
 
 // same information as PortInfo, but easier to marshal
 struct NPortInfo

waterbox/nyma/common/nyma.h

@@ -15,3 +15,4 @@ struct CheatArea
 CheatArea* FindCheatArea(uint32_t address);
 
 extern bool LagFlag;
+extern void (*InputCallback)();

waterbox/nyma/pce.cpp

@@ -56,6 +56,8 @@ namespace MDFN_IEN_PCE
 	uint8 INPUT_Read(int32 timestamp, unsigned int A)
 	{
 		LagFlag = false;
+		if (InputCallback)
+			InputCallback();
 		return ZZINPUT_Read(timestamp, A);
 	}
 }