From c71af2b9d9255dbac8de266beafd1fa553d27b47 Mon Sep 17 00:00:00 2001
From: Souryo <mesenemu@gmail.com>
Date: Mon, 18 Jan 2016 18:03:42 -0500
Subject: [PATCH] Mapper 180 support

---
 Core/Core.vcxproj         |  1 +
 Core/Core.vcxproj.filters |  3 +++
 Core/MapperFactory.cpp    |  2 ++
 Core/UnRom_180.h          | 23 +++++++++++++++++++++++
 4 files changed, 29 insertions(+)
 create mode 100644 Core/UnRom_180.h

diff --git a/Core/Core.vcxproj b/Core/Core.vcxproj
index 556f657e..169d8006 100644
--- a/Core/Core.vcxproj
+++ b/Core/Core.vcxproj
@@ -285,6 +285,7 @@
     <ClInclude Include="TriangleChannel.h" />
     <ClInclude Include="UnlPci556.h" />
     <ClInclude Include="UNROM.h" />
+    <ClInclude Include="UnRom_180.h" />
     <ClInclude Include="VideoDecoder.h" />
     <ClInclude Include="BaseVideoFilter.h" />
     <ClInclude Include="VirtualController.h" />
diff --git a/Core/Core.vcxproj.filters b/Core/Core.vcxproj.filters
index cbee8196..f6208ce8 100644
--- a/Core/Core.vcxproj.filters
+++ b/Core/Core.vcxproj.filters
@@ -344,6 +344,9 @@
     <ClInclude Include="SoundMixer.h">
       <Filter>Nes\APU</Filter>
     </ClInclude>
+    <ClInclude Include="UnRom_180.h">
+      <Filter>Nes\Mappers</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="stdafx.cpp">
diff --git a/Core/MapperFactory.cpp b/Core/MapperFactory.cpp
index 1941a0cf..e92e74f2 100644
--- a/Core/MapperFactory.cpp
+++ b/Core/MapperFactory.cpp
@@ -38,6 +38,7 @@
 #include "TaitoX1005.h"
 #include "UnlPci556.h"
 #include "UNROM.h"
+#include "UnRom_180.h"
 #include "VRC1.h"
 #include "VRC2_4.h"
 #include "BF909x.h"
@@ -95,6 +96,7 @@ BaseMapper* MapperFactory::GetMapperFromID(ROMLoader &romLoader)
 		case 152: return new Bandai74161_7432(true);
 		case 154: return new Namco108_154();
 		case 163: return new Nanjing();
+		case 180: return new UnRom_180();
 		case 184: return new Sunsoft184();
 		case 185: return new CNROM(true);
 		case 189: return new MMC3_189();
diff --git a/Core/UnRom_180.h b/Core/UnRom_180.h
new file mode 100644
index 00000000..e1a99f71
--- /dev/null
+++ b/Core/UnRom_180.h
@@ -0,0 +1,23 @@
+#pragma once
+#include "stdafx.h"
+#include "BaseMapper.h"
+
+class UnRom_180 : public BaseMapper
+{
+protected:
+	virtual uint16_t GetPRGPageSize() { return 0x4000; }
+	virtual uint16_t GetCHRPageSize() { return 0x2000; }
+
+	void InitMapper()
+	{
+		SelectPRGPage(0, 0);
+		SelectPRGPage(1, -1);
+
+		SelectCHRPage(0, 0);
+	}
+
+	void WriteRegister(uint16_t addr, uint8_t value)
+	{
+		SelectPRGPage(1, value & 0x07);
+	}
+};
\ No newline at end of file