From eeffa162e117235c78efc57598e9cba8bf13af3f Mon Sep 17 00:00:00 2001
From: Souryo <mesenemu@gmail.com>
Date: Wed, 9 Nov 2016 20:14:55 -0500
Subject: [PATCH] UNIF RT-01 board support

---
 Core/Core.vcxproj         |  1 +
 Core/Core.vcxproj.filters |  3 +++
 Core/MapperFactory.cpp    |  3 +++
 Core/MapperFactory.h      |  1 +
 Core/Rt01.h               | 30 ++++++++++++++++++++++++++++++
 Core/UnifLoader.h         |  2 +-
 6 files changed, 39 insertions(+), 1 deletion(-)
 create mode 100644 Core/Rt01.h

diff --git a/Core/Core.vcxproj b/Core/Core.vcxproj
index 44eedd4c..5481c2b1 100644
--- a/Core/Core.vcxproj
+++ b/Core/Core.vcxproj
@@ -561,6 +561,7 @@
     <ClInclude Include="RomData.h" />
     <ClInclude Include="NtdecTc112.h" />
     <ClInclude Include="Rambo1.h" />
+    <ClInclude Include="Rt01.h" />
     <ClInclude Include="Sachen74LS374N.h" />
     <ClInclude Include="Sachen74LS374NB.h" />
     <ClInclude Include="Sachen8259.h" />
diff --git a/Core/Core.vcxproj.filters b/Core/Core.vcxproj.filters
index c66cc7f8..8a89c4cc 100644
--- a/Core/Core.vcxproj.filters
+++ b/Core/Core.vcxproj.filters
@@ -1024,6 +1024,9 @@
     <ClInclude Include="Kaiser7016.h">
       <Filter>Nes\Mappers\Unif</Filter>
     </ClInclude>
+    <ClInclude Include="Rt01.h">
+      <Filter>Nes\Mappers\Unif</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="stdafx.cpp">
diff --git a/Core/MapperFactory.cpp b/Core/MapperFactory.cpp
index 3c8bcd86..2962d2e2 100644
--- a/Core/MapperFactory.cpp
+++ b/Core/MapperFactory.cpp
@@ -161,6 +161,7 @@
 #include "OekaKids.h"
 #include "Racermate.h"
 #include "Rambo1.h"
+#include "Rt01.h"
 #include "Sachen_133.h"
 #include "Sachen_136.h"
 #include "Sachen_143.h"
@@ -255,6 +256,7 @@ const uint16_t MapperFactory::UnifKof97;
 const uint16_t MapperFactory::UnifKs7016;
 const uint16_t MapperFactory::UnifMalee;
 const uint16_t MapperFactory::UnifNovelDiamond;
+const uint16_t MapperFactory::UnifRt01;
 const uint16_t MapperFactory::UnifStreetHeroes;
 const uint16_t MapperFactory::UnifSmb2j;
 const uint16_t MapperFactory::UnifSuper24in1Sc03;
@@ -506,6 +508,7 @@ BaseMapper* MapperFactory::GetMapperFromID(RomData &romData)
 		case MapperFactory::UnifKs7016: return new Kaiser7016();
 		case MapperFactory::UnifMalee: return new Malee();
 		case MapperFactory::UnifNovelDiamond: return new NovelDiamond();
+		case MapperFactory::UnifRt01: return new Rt01();
 		case MapperFactory::UnifSmb2j: return new Smb2j();
 		case MapperFactory::UnifStreetHeroes: return new MMC3_StreetHeroes();
 		case MapperFactory::UnifSuper24in1Sc03: return new MMC3_Super24in1Sc03();
diff --git a/Core/MapperFactory.h b/Core/MapperFactory.h
index ac4bb880..1b848720 100644
--- a/Core/MapperFactory.h
+++ b/Core/MapperFactory.h
@@ -35,6 +35,7 @@ class MapperFactory
 		static const uint16_t UnifSuper40in1Ws = 65512;
 		static const uint16_t UnifCc21 = 65511;
 		static const uint16_t UnifKs7016 = 65510;
+		static const uint16_t UnifRt01 = 65509;
 
 		static shared_ptr<BaseMapper> InitializeFromFile(string romFilename, stringstream *filestream, string ipsFilename, int32_t archiveFileIndex);
 };
diff --git a/Core/Rt01.h b/Core/Rt01.h
new file mode 100644
index 00000000..fbc92468
--- /dev/null
+++ b/Core/Rt01.h
@@ -0,0 +1,30 @@
+#pragma once
+#include "stdafx.h"
+#include "BaseMapper.h"
+
+class Rt01 : public BaseMapper
+{
+protected:
+	uint16_t GetPRGPageSize() { return 0x4000; }
+	uint16_t GetCHRPageSize() { return 0x800; }
+	bool AllowRegisterRead() override { return true; }
+
+	void InitMapper() override
+	{
+		SelectPRGPage(0, 0);
+		SelectPRGPage(1, 0);
+		SelectCHRPage(0, 0);
+		SelectCHRPage(1, 0);
+		SelectCHRPage(2, 0);
+		SelectCHRPage(3, 0);
+	}
+
+	uint8_t ReadRegister(uint16_t addr) override
+	{
+		if((addr >= 0xCE80 && addr < 0xCF00) || (addr >= 0xFE80 && addr < 0xFF00)) {
+			return 0xF2 | (rand() & 0x0D);
+		} else {
+			return InternalReadRam(addr);
+		}
+	}
+};
\ No newline at end of file
diff --git a/Core/UnifLoader.h b/Core/UnifLoader.h
index 5e89c809..bc1faae2 100644
--- a/Core/UnifLoader.h
+++ b/Core/UnifLoader.h
@@ -155,7 +155,7 @@ private:
 		{ "EH8813A", MapperFactory::UnknownBoard },
 		{ "HP898F", MapperFactory::UnknownBoard },
 		{ "F-15", MapperFactory::UnknownBoard },
-		{ "RT-01", MapperFactory::UnknownBoard },
+		{ "RT-01", MapperFactory::UnifRt01 },
 		{ "81-01-31-C", MapperFactory::UnknownBoard },
 		{ "8-IN-1", MapperFactory::UnknownBoard },
 		{ "WS", MapperFactory::UnifSuper40in1Ws }