- getbass now uses MPC106.

- Fixed some error messages in 53C810.cpp.
- Fixed stereo (was swapped) and added a flip stereo option.

Src/Games.cpp

@@ -1,3 +1,4 @@
+//TODO: clean up game titles (for example: Star Wars is incorrectly labeled rev.A)
 /**
  ** Supermodel
  ** A Sega Model 3 Arcade Emulator.

Src/Model3/53C810.cpp

@@ -228,7 +228,7 @@ void C53C810::WriteRegister(unsigned reg, UINT8 data)
 {
 	if (reg >= 0x60)
 	{
-		ErrorLog("%s:%d: Invalid 53C810 register (%02X).", __FILE__, __LINE__, reg);
+		ErrorLog("Write to invalid 53C810 register (%02X).", reg);
 		return;
 	}
 	
@@ -343,7 +343,7 @@ UINT8 C53C810::ReadRegister(unsigned reg)
 	
 	if (reg >= 0x60)
 	{
-		ErrorLog("%s:%d: Invalid 53C810 register (%02X).", __FILE__, __LINE__, reg);
+		ErrorLog("Read from invalid 53C810 register (%02X).", reg);
 		return 0;
 	}
 	

Src/Model3/DSB.cpp

@@ -454,7 +454,6 @@ void CDSB1::RunFrame(INT16 *audioL, INT16 *audioR)
 	INT16 *mpegFill[2] = { &mpegL[retainedSamples], &mpegR[retainedSamples] };
 	MPEG_Decode(mpegFill, 32000/60-retainedSamples+2);
 	retainedSamples = Resampler.UpSampleAndMix(audioL, audioR, mpegL, mpegR, v, v, 44100/60, 32000/60+2, 44100, 32000);
-	
 #endif
 }
 
@@ -1004,7 +1003,6 @@ void CDSB2::RunFrame(INT16 *audioL, INT16 *audioR)
 	INT16 *mpegFill[2] = { &mpegL[retainedSamples], &mpegR[retainedSamples] };
 	MPEG_Decode(mpegFill, 32000/60-retainedSamples+2);
 	retainedSamples = Resampler.UpSampleAndMix(audioL, audioR, mpegL, mpegR, volume[0], volume[1], 44100/60, 32000/60+2, 44100, 32000);
-
 #endif
 }
 

Src/Model3/Model3.cpp

@@ -2575,7 +2575,7 @@ BOOL CModel3::LoadROMSet(const struct GameInfo *GameList, const char *zipFile)
 		PPCConfig.pvr = PPC_MODEL_603R;	// 66 MHz
 		PPCConfig.bus_frequency = BUS_FREQUENCY_66MHZ;
 		PPCConfig.bus_frequency_multiplier = 0x10;	// 1X multiplier
-		if (!strcmp(Game->id, "bass"))	// some Step 1.0 games use MPC106
+		if (!strcmp(Game->id, "bass") || !strcmp(Game->id, "getbass"))	// some Step 1.0 games use MPC106
 			PCIBridge.SetModel(0x106);
 		else
 			PCIBridge.SetModel(0x105);	// MPC105

Src/OSD/SDL/Audio.cpp

@@ -137,16 +137,38 @@ static void PlayCallback(void *data, Uint8 *stream, int len)
 static void MixChannels(unsigned numSamples, INT16 *leftBuffer, INT16 *rightBuffer, void *dest)
 {
 	INT16 *p = (INT16*)dest;
+	
+#if (NUM_CHANNELS == 1)
+	for (unsigned i = 0; i < numSamples; i++)
+		*p++ = leftBuffer[i] + rightBuffer[i];	// TODO: these should probably be clipped! 
+#else
+	if (g_Config.flipStereo)	// swap left and right channels
+	{
 		for (unsigned i = 0; i < numSamples; i++)
 		{
-#if (NUM_CHANNELS == 1)
-		*p++ = leftBuffer[i] + rightBuffer[i];
-#else
 			*p++ = rightBuffer[i];
 			*p++ = leftBuffer[i];
-#endif
 		}
 	}
+	else						// stereo as God intended!
+	{
+		for (unsigned i = 0; i < numSamples; i++)
+		{
+			*p++ = leftBuffer[i];
+			*p++ = rightBuffer[i];
+		}
+	}
+#endif	// NUM_CHANNELS
+}
+
+static void LogAudioInfo(SDL_AudioSpec *fmt)
+{
+	InfoLog("Audio device information:");
+	InfoLog("    Frequency: %d", fmt->freq);
+	InfoLog("     Channels: %d", fmt->channels);
+	InfoLog("Sample Format: %d", fmt->format);
+	InfoLog("");
+}
 
 BOOL OpenAudio()
 {
@@ -167,6 +189,11 @@ BOOL OpenAudio()
 	SDL_AudioSpec obtained;
 	if (SDL_OpenAudio(&fmt, &obtained) < 0)
 		return ErrorLog("Unable to open 44.1KHz 2-channel audio with SDL: %s\n", SDL_GetError());
+	LogAudioInfo(&obtained);
+		
+	// Check if obtained format is what we really requested
+	if ((obtained.freq!=fmt.freq) || (obtained.channels!=fmt.channels) || (obtained.format!=fmt.format))
+		ErrorLog("Incompatible audio settings (44.1KHz, 16-bit required). Check drivers!\n");
 		
 	// Check what buffer sample size was actually obtained, and use that
 	playSamples = obtained.samples;

Src/OSD/SDL/Main.cpp

@@ -1,6 +1,6 @@
 //TODO before release:
 // - Controls for Dirt Devils, and other recent games (is bass working?)
-// - Crosshairs
+// - Stereo reverse option (see Srally2 sound test menu)
 // - Comment source code, clean up
 // - BOOL -> bool, TRUE/FALSE -> true/false
 // - Add option for building with /MD in MSVC Makefile
@@ -392,6 +392,8 @@ static void ApplySettings(CINIFile *INI, const char *section)
 		g_Config.throttle = x ? true : false;
 	if (OKAY == INI->Get(section, "ShowFrameRate", x))
 		g_Config.showFPS = x ? true : false;
+	if (OKAY == INI->Get(section, "FlipStereo", x))
+		g_Config.flipStereo = x ? true : false;
 }
 
 // Read settings (from a specific section) from the config file
@@ -421,6 +423,7 @@ static void LogConfig(void)
 	InfoLog("\tDisableDebugger  = %d", g_Config.disableDebugger);
 #endif
 	InfoLog("\tInputSystem      = %s", g_Config.GetInputSystem());
+	InfoLog("\tFlipStereo       = %d", g_Config.flipStereo);
 	
 	// CModel3Config
 	InfoLog("\tMultiThreaded    = %d", g_Config.multiThreaded);
@@ -1031,10 +1034,10 @@ static void Help(void)
 	puts("    -print-games           List supported games and quit");
 	puts("");
 	puts("Emulation Options:");
-	puts("    -ppc-frequency=<f>     Set PowerPC frequency in MHz [Default: 40]");
+	printf("    -ppc-frequency=<f>     Set PowerPC frequency in MHz [Default: %d]\n", g_Config.GetPowerPCFrequency());
 	puts("    -no-scsp               Disable Sega Custom Sound Processor (sound effects)");
 	puts("    -no-dsb                Disable Digital Sound Board (MPEG music)");
-	puts("    -multi-threaded        Enable multi-threading");
+	puts("    -multi-threaded        Enable multi-threading for enhanced performance");
 #ifdef SUPERMODEL_DEBUGGER
 	puts("    -disable-debugger	     Completely disable debugger functionality");
 	puts("    -enter-debugger        Enter debugger at start of emulation");
@@ -1051,6 +1054,7 @@ static void Help(void)
 	puts("Audio Options:");
 	puts("    -sound-volume=<v>      Set volume of sound effects in % [Default: 100]");
 	puts("    -music-volume=<v>      Set volume of MPEG music in % [Default: 100]");
+	puts("    -flip-stereo           Swap left and right audio channels");
 	puts("");
 	puts("Input Options:");
 #ifdef SUPERMODEL_WIN32
@@ -1183,6 +1187,11 @@ int main(int argc, char **argv)
 			else
 				CmdLine.Set("Global", "MusicVolume", n);
 		}
+		else if (!strcmp(argv[i], "-flip-stereo"))
+		{
+			n = 1;
+			CmdLine.Set("Global", "FlipStereo", n);
+		}
 		else if (!strcmp(argv[i], "-no-scsp"))
 		{
 			n = 0;
@@ -1236,7 +1245,7 @@ int main(int argc, char **argv)
 				CmdLine.Set("Global", "FragmentShader", &argv[i][13]);
 		}
 #ifdef SUPERMODEL_WIN32
-		else if (!strncmp(argv[i],"-input-system=", 14))
+		else if (!strncmp(argv[i],"-input-system=", 14))	// this setting is not written to the config file!
 		{
 			if (argv[i][14] == '\0')
 				ErrorLog("-input-system requires an input system name.");

Src/OSD/SDL/OSDConfig.h

@@ -47,6 +47,7 @@ public:
 	bool 		fullScreen;		// Full screen mode (if TRUE)
 	bool 		throttle;		// 60 Hz frame limiting
 	bool		showFPS;		// Show frame rate
+	bool		flipStereo;		// Flip stereo channels
 
 #ifdef SUPERMODEL_DEBUGGER
 	bool		disableDebugger;	// disables the debugger (not stored in the config. file)
@@ -88,6 +89,7 @@ public:
 		fullScreen = false;
 		throttle = true;
 		showFPS = false;
+		flipStereo = false;
 #ifdef SUPERMODEL_DEBUGGER
 		disableDebugger = false;
 #endif