Added the Zelda UCode preliminary synthesizer. It's far from perfect, but it sounds like the exact pitch it should synth. I'd be glad if someone finished it.

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@3630 8ced0084-cf51-0410-be5f-012b33b47a6e

5 files changed, 163 insertions, 86 deletions

diff --git a/Source/Plugins/Plugin_DSP_HLE/Plugin_DSP_HLE.vcproj b/Source/Plugins/Plugin_DSP_HLE/Plugin_DSP_HLE.vcproj
index dc1a5a7261..45eca9c5c3 100644
--- a/Source/Plugins/Plugin_DSP_HLE/Plugin_DSP_HLE.vcproj
+++ b/Source/Plugins/Plugin_DSP_HLE/Plugin_DSP_HLE.vcproj
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="Windows-1252"?>

 <VisualStudioProject

 	ProjectType="Visual C++"

-	Version="9,00"

+	Version="9.00"

 	Name="Plugin_DSP_HLE"

 	ProjectGUID="{D6E56527-BBB9-4EAD-A6EC-49D4BF6AFCD8}"

 	RootNamespace="Plugin_DSP"

@@ -105,7 +105,7 @@
 			/>

 		</Configuration>

 		<Configuration

-			Name="Release|Win32"

+			Name="Debug|x64"

 			OutputDirectory="$(PlatformName)\$(ConfigurationName)"

 			IntermediateDirectory="$(PlatformName)\$(ConfigurationName)"

 			ConfigurationType="2"

@@ -126,19 +126,16 @@
 			/>

 			<Tool

 				Name="VCMIDLTool"

+				TargetEnvironment="3"

 			/>

 			<Tool

 				Name="VCCLCompilerTool"

-				Optimization="2"

-				InlineFunctionExpansion="2"

-				EnableIntrinsicFunctions="true"

-				FavorSizeOrSpeed="1"

-				OmitFramePointers="true"

+				Optimization="0"

 				AdditionalIncludeDirectories="../../Core/Common/Src;../../Core/AudioCommon/Src;../../PluginSpecs;..\..\..\Externals\wxWidgets\Include;..\..\..\Externals\wxWidgets\Include\msvc"

-				PreprocessorDefinitions="WIN32;NDEBUG;_WINDOWS;_USRDLL;DSP_HLE_EXPORTS;_SECURE_SCL=0"

-				RuntimeLibrary="0"

-				BufferSecurityCheck="false"

-				EnableEnhancedInstructionSet="2"

+				PreprocessorDefinitions="LOGGING;WIN32;_DEBUG;_WINDOWS;_USRDLL;DSP_HLE_EXPORTS;_SECURE_SCL=0"

+				MinimalRebuild="true"

+				BasicRuntimeChecks="3"

+				RuntimeLibrary="1"

 				FloatingPointModel="0"

 				UsePrecompiledHeader="2"

 				AssemblerListingLocation="$(IntDir)\"

@@ -157,20 +154,18 @@
 			/>

 			<Tool

 				Name="VCLinkerTool"

-				AdditionalDependencies="dxguid.lib dsound.lib dxerr.lib comctl32.lib winmm.lib OpenAL32.lib"

-				OutputFile="../../../Binary/Win32/Plugins/Plugin_DSP_HLE.dll"

-				LinkIncremental="1"

-				AdditionalLibraryDirectories="&quot;..\..\AudioCommon\$(PlatformName)\$(ConfigurationName)&quot;;../../../Externals/OpenAL/Win32/"

+				AdditionalDependencies="dxguid.lib dsound.lib dxerr.lib rpcrt4.lib comctl32.lib winmm.lib OpenAL32.lib"

+				OutputFile="../../../Binary/x64/Plugins/Plugin_DSP_HLED.dll"

+				LinkIncremental="2"

+				AdditionalLibraryDirectories="&quot;..\..\AudioCommon\$(PlatformName)\$(ConfigurationName)&quot;;../../../Externals/OpenAL/Win64/"

 				GenerateManifest="false"

 				GenerateDebugInformation="true"

 				ProgramDatabaseFile="$(PlatformName)\$(ConfigurationName)\$(TargetName).pdb"

 				SubSystem="2"

-				OptimizeReferences="2"

-				EnableCOMDATFolding="2"

 				RandomizedBaseAddress="1"

 				DataExecutionPrevention="0"

 				ImportLibrary="$(PlatformName)\$(ConfigurationName)\$(TargetName).lib"

-				TargetMachine="1"

+				TargetMachine="17"

 			/>

 			<Tool

 				Name="VCALinkTool"

@@ -192,11 +187,11 @@
 			/>

 			<Tool

 				Name="VCPostBuildEventTool"

-				CommandLine="copy ..\..\..\Externals\OpenAL\Win32\OpenAL32.dll ..\..\..\Binary\Win32\OpenAL32.dll /Y&#x0D;&#x0A;copy ..\..\..\Externals\OpenAL\Win32\wrap_oal.dll ..\..\..\Binary\Win32\wrap_oal.dll /Y&#x0D;&#x0A;"

+				CommandLine="copy ..\..\..\Externals\OpenAL\Win64\OpenAL32.dll ..\..\..\Binary\x64\OpenAL32.dll /Y&#x0D;&#x0A;copy ..\..\..\Externals\OpenAL\Win64\wrap_oal.dll ..\..\..\Binary\x64\wrap_oal.dll /Y&#x0D;&#x0A;"

 			/>

 		</Configuration>

 		<Configuration

-			Name="DebugFast|Win32"

+			Name="Release|Win32"

 			OutputDirectory="$(PlatformName)\$(ConfigurationName)"

 			IntermediateDirectory="$(PlatformName)\$(ConfigurationName)"

 			ConfigurationType="2"

@@ -226,7 +221,7 @@
 				FavorSizeOrSpeed="1"

 				OmitFramePointers="true"

 				AdditionalIncludeDirectories="../../Core/Common/Src;../../Core/AudioCommon/Src;../../PluginSpecs;..\..\..\Externals\wxWidgets\Include;..\..\..\Externals\wxWidgets\Include\msvc"

-				PreprocessorDefinitions="DEBUGFAST;WIN32;NDEBUG;_WINDOWS;_USRDLL;DSP_HLE_EXPORTS;_SECURE_SCL=0"

+				PreprocessorDefinitions="WIN32;NDEBUG;_WINDOWS;_USRDLL;DSP_HLE_EXPORTS;_SECURE_SCL=0"

 				RuntimeLibrary="0"

 				BufferSecurityCheck="false"

 				EnableEnhancedInstructionSet="2"

@@ -249,7 +244,7 @@
 			<Tool

 				Name="VCLinkerTool"

 				AdditionalDependencies="dxguid.lib dsound.lib dxerr.lib comctl32.lib winmm.lib OpenAL32.lib"

-				OutputFile="../../../Binary/Win32/Plugins/Plugin_DSP_HLEDF.dll"

+				OutputFile="../../../Binary/Win32/Plugins/Plugin_DSP_HLE.dll"

 				LinkIncremental="1"

 				AdditionalLibraryDirectories="&quot;..\..\AudioCommon\$(PlatformName)\$(ConfigurationName)&quot;;../../../Externals/OpenAL/Win32/"

 				GenerateManifest="false"

@@ -287,7 +282,7 @@
 			/>

 		</Configuration>

 		<Configuration

-			Name="Debug|x64"

+			Name="Release|x64"

 			OutputDirectory="$(PlatformName)\$(ConfigurationName)"

 			IntermediateDirectory="$(PlatformName)\$(ConfigurationName)"

 			ConfigurationType="2"

@@ -312,12 +307,15 @@
 			/>

 			<Tool

 				Name="VCCLCompilerTool"

-				Optimization="0"

+				Optimization="2"

+				InlineFunctionExpansion="2"

+				EnableIntrinsicFunctions="true"

+				FavorSizeOrSpeed="1"

+				OmitFramePointers="true"

 				AdditionalIncludeDirectories="../../Core/Common/Src;../../Core/AudioCommon/Src;../../PluginSpecs;..\..\..\Externals\wxWidgets\Include;..\..\..\Externals\wxWidgets\Include\msvc"

-				PreprocessorDefinitions="LOGGING;WIN32;_DEBUG;_WINDOWS;_USRDLL;DSP_HLE_EXPORTS;_SECURE_SCL=0"

-				MinimalRebuild="true"

-				BasicRuntimeChecks="3"

-				RuntimeLibrary="1"

+				PreprocessorDefinitions="WIN32;NDEBUG;_WINDOWS;_USRDLL;DSP_HLE_EXPORTS;_SECURE_SCL=0"

+				RuntimeLibrary="0"

+				BufferSecurityCheck="false"

 				FloatingPointModel="0"

 				UsePrecompiledHeader="2"

 				AssemblerListingLocation="$(IntDir)\"

@@ -336,14 +334,16 @@
 			/>

 			<Tool

 				Name="VCLinkerTool"

-				AdditionalDependencies="dxguid.lib dsound.lib dxerr.lib rpcrt4.lib comctl32.lib winmm.lib OpenAL32.lib"

-				OutputFile="../../../Binary/x64/Plugins/Plugin_DSP_HLED.dll"

-				LinkIncremental="2"

+				AdditionalDependencies="dxguid.lib dsound.lib dxerr.lib comctl32.lib winmm.lib OpenAL32.lib"

+				OutputFile="../../../Binary/x64/Plugins/Plugin_DSP_HLE.dll"

+				LinkIncremental="1"

 				AdditionalLibraryDirectories="&quot;..\..\AudioCommon\$(PlatformName)\$(ConfigurationName)&quot;;../../../Externals/OpenAL/Win64/"

 				GenerateManifest="false"

 				GenerateDebugInformation="true"

 				ProgramDatabaseFile="$(PlatformName)\$(ConfigurationName)\$(TargetName).pdb"

 				SubSystem="2"

+				OptimizeReferences="2"

+				EnableCOMDATFolding="2"

 				RandomizedBaseAddress="1"

 				DataExecutionPrevention="0"

 				ImportLibrary="$(PlatformName)\$(ConfigurationName)\$(TargetName).lib"

@@ -373,7 +373,7 @@
 			/>

 		</Configuration>

 		<Configuration

-			Name="Release|x64"

+			Name="DebugFast|Win32"

 			OutputDirectory="$(PlatformName)\$(ConfigurationName)"

 			IntermediateDirectory="$(PlatformName)\$(ConfigurationName)"

 			ConfigurationType="2"

@@ -394,7 +394,6 @@
 			/>

 			<Tool

 				Name="VCMIDLTool"

-				TargetEnvironment="3"

 			/>

 			<Tool

 				Name="VCCLCompilerTool"

@@ -404,9 +403,10 @@
 				FavorSizeOrSpeed="1"

 				OmitFramePointers="true"

 				AdditionalIncludeDirectories="../../Core/Common/Src;../../Core/AudioCommon/Src;../../PluginSpecs;..\..\..\Externals\wxWidgets\Include;..\..\..\Externals\wxWidgets\Include\msvc"

-				PreprocessorDefinitions="WIN32;NDEBUG;_WINDOWS;_USRDLL;DSP_HLE_EXPORTS;_SECURE_SCL=0"

+				PreprocessorDefinitions="DEBUGFAST;WIN32;NDEBUG;_WINDOWS;_USRDLL;DSP_HLE_EXPORTS;_SECURE_SCL=0"

 				RuntimeLibrary="0"

 				BufferSecurityCheck="false"

+				EnableEnhancedInstructionSet="2"

 				FloatingPointModel="0"

 				UsePrecompiledHeader="2"

 				AssemblerListingLocation="$(IntDir)\"

@@ -426,9 +426,9 @@
 			<Tool

 				Name="VCLinkerTool"

 				AdditionalDependencies="dxguid.lib dsound.lib dxerr.lib comctl32.lib winmm.lib OpenAL32.lib"

-				OutputFile="../../../Binary/x64/Plugins/Plugin_DSP_HLE.dll"

+				OutputFile="../../../Binary/Win32/Plugins/Plugin_DSP_HLEDF.dll"

 				LinkIncremental="1"

-				AdditionalLibraryDirectories="&quot;..\..\AudioCommon\$(PlatformName)\$(ConfigurationName)&quot;;../../../Externals/OpenAL/Win64/"

+				AdditionalLibraryDirectories="&quot;..\..\AudioCommon\$(PlatformName)\$(ConfigurationName)&quot;;../../../Externals/OpenAL/Win32/"

 				GenerateManifest="false"

 				GenerateDebugInformation="true"

 				ProgramDatabaseFile="$(PlatformName)\$(ConfigurationName)\$(TargetName).pdb"

@@ -438,7 +438,7 @@
 				RandomizedBaseAddress="1"

 				DataExecutionPrevention="0"

 				ImportLibrary="$(PlatformName)\$(ConfigurationName)\$(TargetName).lib"

-				TargetMachine="17"

+				TargetMachine="1"

 			/>

 			<Tool

 				Name="VCALinkTool"

@@ -460,7 +460,7 @@
 			/>

 			<Tool

 				Name="VCPostBuildEventTool"

-				CommandLine="copy ..\..\..\Externals\OpenAL\Win64\OpenAL32.dll ..\..\..\Binary\x64\OpenAL32.dll /Y&#x0D;&#x0A;copy ..\..\..\Externals\OpenAL\Win64\wrap_oal.dll ..\..\..\Binary\x64\wrap_oal.dll /Y&#x0D;&#x0A;"

+				CommandLine="copy ..\..\..\Externals\OpenAL\Win32\OpenAL32.dll ..\..\..\Binary\Win32\OpenAL32.dll /Y&#x0D;&#x0A;copy ..\..\..\Externals\OpenAL\Win32\wrap_oal.dll ..\..\..\Binary\Win32\wrap_oal.dll /Y&#x0D;&#x0A;"

 			/>

 		</Configuration>

 		<Configuration

@@ -616,7 +616,7 @@
 						/>

 					</FileConfiguration>

 					<FileConfiguration

-						Name="DebugFast|Win32"

+						Name="Release|x64"

 						>

 						<Tool

 							Name="VCCLCompilerTool"

@@ -624,7 +624,7 @@
 						/>

 					</FileConfiguration>

 					<FileConfiguration

-						Name="Release|x64"

+						Name="DebugFast|Win32"

 						>

 						<Tool

 							Name="VCCLCompilerTool"

@@ -685,6 +685,10 @@
 					>

 				</File>

 				<File

+					RelativePath=".\Src\UCodes\UCode_Zelda_Synth.cpp"

+					>

+				</File>

+				<File

 					RelativePath=".\Src\UCodes\UCode_Zelda_Voice.cpp"

 					>

 				</File>

@@ -810,7 +814,7 @@
 				/>

 			</FileConfiguration>

 			<FileConfiguration

-				Name="Release|Win32"

+				Name="Debug|x64"

 				>

 				<Tool

 					Name="VCCLCompilerTool"

@@ -818,7 +822,7 @@
 				/>

 			</FileConfiguration>

 			<FileConfiguration

-				Name="DebugFast|Win32"

+				Name="Release|Win32"

 				>

 				<Tool

 					Name="VCCLCompilerTool"

@@ -826,7 +830,7 @@
 				/>

 			</FileConfiguration>

 			<FileConfiguration

-				Name="Debug|x64"

+				Name="Release|x64"

 				>

 				<Tool

 					Name="VCCLCompilerTool"

@@ -834,7 +838,7 @@
 				/>

 			</FileConfiguration>

 			<FileConfiguration

-				Name="Release|x64"

+				Name="DebugFast|Win32"

 				>

 				<Tool

 					Name="VCCLCompilerTool"

diff --git a/Source/Plugins/Plugin_DSP_HLE/Src/SConscript b/Source/Plugins/Plugin_DSP_HLE/Src/SConscript
index 3d75c9e224..3e6f5a9683 100644
--- a/Source/Plugins/Plugin_DSP_HLE/Src/SConscript
+++ b/Source/Plugins/Plugin_DSP_HLE/Src/SConscript
@@ -23,6 +23,7 @@ files = [
 	'UCodes/UCode_Zelda.cpp',
 	'UCodes/UCode_Zelda_ADPCM.cpp',
 	'UCodes/UCode_Zelda_Voice.cpp',
+	'UCodes/UCode_Zelda_Synth.cpp',
 	]
 
 dspenv = env.Clone()
diff --git a/Source/Plugins/Plugin_DSP_HLE/Src/UCodes/UCode_Zelda_Synth.cpp b/Source/Plugins/Plugin_DSP_HLE/Src/UCodes/UCode_Zelda_Synth.cpp
index 2989b4ae2c..0749c4d69c 100644
--- a/Source/Plugins/Plugin_DSP_HLE/Src/UCodes/UCode_Zelda_Synth.cpp
+++ b/Source/Plugins/Plugin_DSP_HLE/Src/UCodes/UCode_Zelda_Synth.cpp
@@ -25,19 +25,75 @@
 
 void CUCode_Zelda::MixAddSynth_Waveform(ZeldaVoicePB &PB, s32* _Buffer, int _Size)
 {
-	int mask = PB.Format ? 3 : 1;
-        
-	for (int i = 0; i < _Size; i++)
-	{
-		s16 sample = (i & mask) ? 0xc000 : 0x4000;
-
-		_Buffer[i++] = (s32)sample;
-	}
+	float ratioFactor = 32000.0f / (float)soundStream->GetMixer()->GetSampleRate();

+	u32 _ratio = (((PB.RatioInt * 80) + PB.RatioFrac) << 4) & 0xFFFF0000;

+	u64 ratio = (u64)(((_ratio / 80) << 16) * ratioFactor);
+	int mask = PB.Format ? 3 : 1, shift = PB.Format ? 2 : 1;
+	
+	u32 pos[2] = {0, 0};

+	int i = 0;

+

+	if (PB.KeyOff != 0)

+		return;

+

+	if (PB.NeedsReset)

+	{

+		PB.RemLength = PB.Length - PB.RestartPos;

+		PB.CurAddr =  PB.StartAddr + (PB.RestartPos << 1);

+		PB.ReachedEnd = 0;

+	}

+

+_lRestart:

+	if (PB.ReachedEnd)

+	{

+		PB.ReachedEnd = 0;

+

+		if (PB.RepeatMode == 0)

+		{

+			PB.KeyOff = 1;

+			PB.RemLength = 0;

+			PB.CurAddr = PB.StartAddr + (PB.RestartPos << 1) + PB.Length;

+			return;

+		}

+		else

+		{

+			PB.RestartPos = PB.LoopStartPos;

+			PB.RemLength = PB.Length - PB.RestartPos;

+			PB.CurAddr =  PB.StartAddr + (PB.RestartPos << 1);

+			pos[1] = 0; pos[0] = 0;

+		}

+	}

+

+	for (; i < _Size;)

+	{

+		s16 sample = ((pos[1] & mask) == mask) ? 0xc000 : 0x4000;

+

+		_Buffer[i++] = (s32)sample;

+

+		(*(u64*)&pos) += ratio;

+		if ((pos[1] + ((PB.CurAddr - PB.StartAddr) >> 1)) >= PB.Length)

+		{

+			PB.ReachedEnd = 1;

+			goto _lRestart;

+		}

+	}

+

+	if (PB.RemLength < pos[1])

+	{

+		PB.RemLength = 0;

+		PB.ReachedEnd = 1;

+	}

+	else

+		PB.RemLength -= pos[1];

+

+	PB.CurAddr += pos[1] << 1;

+	// There should be a position fraction as well.
 }
 
 
 void CUCode_Zelda::MixAddSynth_Constant(ZeldaVoicePB &PB, s32* _Buffer, int _Size)
 {
+	// TODO: Header, footer and cases this synth actually happens
 	for (int i = 0; i < _Size; i++)
             _Buffer[i++] = (s32)PB.RatioInt;
 }
diff --git a/Source/Plugins/Plugin_DSP_HLE/Src/UCodes/UCode_Zelda_Voice.cpp b/Source/Plugins/Plugin_DSP_HLE/Src/UCodes/UCode_Zelda_Voice.cpp
index dd874708ee..bce5f0e3f2 100644
--- a/Source/Plugins/Plugin_DSP_HLE/Src/UCodes/UCode_Zelda_Voice.cpp
+++ b/Source/Plugins/Plugin_DSP_HLE/Src/UCodes/UCode_Zelda_Voice.cpp
@@ -281,20 +281,22 @@ void CUCode_Zelda::MixAddVoice(ZeldaVoicePB &PB, s32* _LeftBuffer, s32* _RightBu
 	{

 		switch (PB.Format)

 		{

-

 		// Synthesized sounds

-		case 0x0000:

-		case 0x0001:        // Used for "Denied" sound in Zelda

-                    //MixAddSynth_Waveform(PB, m_TempBuffer, _Size);

-                        break;

+		case 0x0000: // Example: Magic meter filling up in ZWW

+		case 0x0001: // Example: "Denied" sound when trying to pull out a sword 

+			         // indoors in ZWW

+			MixAddSynth_Waveform(PB, m_TempBuffer, _Size);

+			break;

 

 		case 0x0006:

-                    //MixAddSynth_Waveform(PB, m_TempBuffer, _Size);

-                        break;

+			WARN_LOG(DSPHLE, "Synthesizing 0x0006 (constant sound)");

+			MixAddSynth_Constant(PB, m_TempBuffer, _Size);

+			break;

                         

-      		// These are more "synth" formats - square wave, saw wave etc.

+      	// These are more "synth" formats - square wave, saw wave etc.

 		case 0x0002:          

-			return;

+			WARN_LOG(DSPHLE, "Synthesizing 0x0002");

+			break;

 

                     

 		// AFC formats

diff --git a/docs/DSP/DSP_UC_Zelda.txt b/docs/DSP/DSP_UC_Zelda.txt
index 1a62b2a1c4..066b6e46d2 100644
--- a/docs/DSP/DSP_UC_Zelda.txt
+++ b/docs/DSP/DSP_UC_Zelda.txt
@@ -2915,37 +2915,51 @@ void 08b2_Unk() {
 	08b2 1401      lsl         $ACC0, #1       // t = PB.RatioFrac * 2

 

 	// Set up sound buffers

-	08b3 009b c000 lri         $AX1.H, #0xc000 // a = 0xc000

-	08b5 0099 4000 lri         $AX1.L, #0x4000 // b = 0x4000

-

-	08b7 1150 08bf bloopi      #0x50, 0x08bf

-	// for(int i = 0; i < 80; i++) {

-		08b9 02c0 0001 andcf       $AC0.M, #0x0001

-		08bb 027c      iflnz       

-			08bc 1b1b      srri        @$AR0, $AX1.H

-		08bd 027d      iflz        

-			08be 1b19      srri        @$AR0, $AX1.L

-		08bf 4800      addax       $ACC0, $AX0.L

-	// }

-	08c0 147f      lsr         $ACC0, #-1

+	//08b3 009b c000 lri         $AX1.H, #0xc000

+	//08b5 0099 4000 lri         $AX1.L, #0x4000

+

+	//08b7 1150 08bf bloopi      #0x50, 0x08bf

+	for(int i = 0; i < 80; i++) {

+		//08b9 02c0 0001 andcf       $AC0.M, #0x0001

+		//08bb 027c      iflnz       

+		//	08bc 1b1b      srri        @$AR0, $AX1.H

+		//08bd 027d      iflz        

+		//	08be 1b19      srri        @$AR0, $AX1.L

+		if(($AC0.M & 1) == 1)

+			*$AR0++ = 0x4000;

+		else

+			*$AR0++ = 0xc000;

+		

+		08bf 4800      addax       $ACC0, $AX0.L // t += PB.RatioInt

+	}

+	08c0 147f      lsr         $ACC0, #-1 // t /= 2

 	08c1 02df      ret

 }

 

 void 08c2_Unk() {         

-	08c2 1402      lsl         $ACC0, #2

-	08c3 8900      clr         $ACC1

-	08c4 1fb8      mrr         $AC1.L, $AX0.L

-	08c5 1501      lsl         $ACC1, #1

+	08c2 1402      lsl         $ACC0, #2       // t = PB.RatioFrac * 4

+	08c3 8900      clr         $ACC1           // ACC1 = 0

+	08c4 1fb8      mrr         $AC1.L, $AX0.L  // AC1.L = PB.RatioInt

+	08c5 1501      lsl         $ACC1, #1       // ACC1 *= 2

 	08c6 009b c000 lri         $AX1.H, #0xc000

 	08c8 0099 4000 lri         $AX1.L, #0x4000

-	08ca 1150 08d2 bloopi      #0x50, 0x08d2

-		08cc 02c0 0003 andcf       $AC0.M, #0x0003

-		08ce 027c      iflnz       

-			08cf 1b1b      srri        @$AR0, $AX1.H

-		08d0 027d      iflz        

-			08d1 1b19      srri        @$AR0, $AX1.L

-		08d2 4c00      add         $ACC0, $AC1.L

-	08d3 147e      lsr         $ACC0, #-2

+	//08ca 1150 08d2 bloopi      #0x50, 0x08d2

+	for(int i = 0; i < 80; i++) {

+		//08cc 02c0 0003 andcf       $AC0.M, #0x0003

+		//08ce 027c      iflnz       

+		//	08cf 1b1b      srri        @$AR0, $AX1.H

+		//08d0 027d      iflz        

+		//	08d1 1b19      srri        @$AR0, $AX1.L

+		//08d2 4c00      add         $ACC0, $AC1.L

+		

+		if(($AC0.M & 3) == 3)

+			*$AR0++ = 0x4000;

+		else

+			*$AR0++ = 0xc000;

+			

+		t += (PB.RatioInt * 2);

+	}

+	08d3 147e      lsr         $ACC0, #-2 // t /= 4

 	08d4 02df      ret         

 }