Fix Chou Aniki. Remove hack.

cpuexec.cpp

@@ -24,9 +24,14 @@ void S9xMainLoop (void)
 	#define CHECK_FOR_IRQ_CHANGE() \
 	if (Timings.IRQFlagChanging) \
 	{ \
-		if (Timings.IRQFlagChanging == IRQ_CLEAR_FLAG) \
+		if (Timings.IRQFlagChanging & IRQ_TRIGGER_NMI) \
+		{ \
+			CPU.NMIPending = TRUE; \
+			Timings.NMITriggerPos = CPU.Cycles + 6; \
+		} \
+		if (Timings.IRQFlagChanging & IRQ_CLEAR_FLAG) \
 			ClearIRQ(); \
-		else if (Timings.IRQFlagChanging == IRQ_SET_FLAG) \
+		else if (Timings.IRQFlagChanging & IRQ_SET_FLAG) \
 			SetIRQ(); \
 		Timings.IRQFlagChanging = IRQ_NONE; \
 	}

cpuops.cpp

@@ -1452,7 +1452,7 @@ static void Op58 (void)
 	AddCycles(ONE_CYCLE);
 
 #ifndef SA1_OPCODES
-	Timings.IRQFlagChanging = IRQ_CLEAR_FLAG;
+	Timings.IRQFlagChanging |= IRQ_CLEAR_FLAG;
 #else
 	ClearIRQ();
 #endif
@@ -1464,7 +1464,7 @@ static void Op78 (void)
 	AddCycles(ONE_CYCLE);
 
 #ifndef SA1_OPCODES
-	Timings.IRQFlagChanging = IRQ_SET_FLAG;
+	Timings.IRQFlagChanging |= IRQ_SET_FLAG;
 #else
 	SetIRQ();
 #endif

memmap.cpp

@@ -3614,8 +3614,6 @@ void CMemory::ApplyROMFixes (void)
 	{
 		//if (match_id("AVCJ"))                                      // Rendering Ranger R2
 		//	Timings.APUSpeedup = 2;
-		if (match_id("AANJ"))                                      // Chou Aniki
-			Timings.APUSpeedup = -3;
 		if (match_na("CIRCUIT USA"))
 			Timings.APUSpeedup = 3;
 

ppu.cpp

@@ -1403,8 +1403,7 @@ void S9xSetCPU (uint8 Byte, uint16 Address)
 				{
 					// FIXME: triggered at HC+=6, checked just before the final CPU cycle,
 					// then, when to call S9xOpcode_NMI()?
-					CPU.NMIPending = TRUE;
-					Timings.NMITriggerPos = CPU.Cycles + 6 + 6;
+					Timings.IRQFlagChanging |= IRQ_TRIGGER_NMI;
 
 					#ifdef DEBUGGER
 					if (Settings.TraceHCEvent)

snes9x.h

@@ -157,9 +157,10 @@ enum
 
 enum
 {
-	IRQ_NONE = 0,
-	IRQ_SET_FLAG = 1,
-	IRQ_CLEAR_FLAG = 2
+	IRQ_NONE        = 0x0,
+	IRQ_SET_FLAG    = 0x1,
+	IRQ_CLEAR_FLAG  = 0x2,
+	IRQ_TRIGGER_NMI = 0x4
 };
 
 struct STimings