diff --git a/Core/Core.vcxproj b/Core/Core.vcxproj
index 214615da..86ecabe9 100644
--- a/Core/Core.vcxproj
+++ b/Core/Core.vcxproj
@@ -424,6 +424,8 @@
     <ClInclude Include="FrontFareast.h" />
     <ClInclude Include="GameDatabase.h" />
     <ClInclude Include="HdVideoFilter.h" />
+    <ClInclude Include="Henggedianzi177.h" />
+    <ClInclude Include="Henggedianzi179.h" />
     <ClInclude Include="iNesLoader.h" />
     <ClInclude Include="IremH3001.h" />
     <ClInclude Include="IremLrog017.h" />
diff --git a/Core/Core.vcxproj.filters b/Core/Core.vcxproj.filters
index 98243acc..e2013650 100644
--- a/Core/Core.vcxproj.filters
+++ b/Core/Core.vcxproj.filters
@@ -748,6 +748,12 @@
     <ClInclude Include="Kaiser202.h">
       <Filter>Nes\Mappers\Kaiser</Filter>
     </ClInclude>
+    <ClInclude Include="Henggedianzi177.h">
+      <Filter>Nes\Mappers</Filter>
+    </ClInclude>
+    <ClInclude Include="Henggedianzi179.h">
+      <Filter>Nes\Mappers</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="stdafx.cpp">
diff --git a/Core/Henggedianzi177.h b/Core/Henggedianzi177.h
new file mode 100644
index 00000000..ffedd7a5
--- /dev/null
+++ b/Core/Henggedianzi177.h
@@ -0,0 +1,24 @@
+#pragma once
+#include "stdafx.h"
+#include "BaseMapper.h"
+
+class Henggedianzi177 : public BaseMapper
+{
+protected:
+	virtual uint16_t GetPRGPageSize() { return 0x8000; }
+	virtual uint16_t GetCHRPageSize() { return 0x2000; }
+	virtual uint16_t RegisterStartAddress() { return 0x8000; }
+	virtual uint16_t RegisterEndAddress() { return 0xFFFF; }
+
+	void InitMapper()
+	{
+		SelectPRGPage(0, 0);
+		SelectCHRPage(0, 0);
+	}
+
+	void WriteRegister(uint16_t addr, uint8_t value)
+	{
+		SelectPRGPage(0, value);
+		SetMirroringType(value & 0x20 ? MirroringType::Horizontal : MirroringType::Vertical);
+	}
+};
\ No newline at end of file
diff --git a/Core/Henggedianzi179.h b/Core/Henggedianzi179.h
new file mode 100644
index 00000000..807336d0
--- /dev/null
+++ b/Core/Henggedianzi179.h
@@ -0,0 +1,28 @@
+#pragma once
+#include "stdafx.h"
+#include "BaseMapper.h"
+
+class Henggedianzi179 : public BaseMapper
+{
+protected:
+	virtual uint16_t GetPRGPageSize() { return 0x8000; }
+	virtual uint16_t GetCHRPageSize() { return 0x2000; }
+	virtual uint16_t RegisterStartAddress() { return 0x8000; }
+	virtual uint16_t RegisterEndAddress() { return 0xFFFF; }
+
+	void InitMapper()
+	{
+		AddRegisterRange(0x5000, 0x5FFF, MemoryOperation::Write);
+		SelectPRGPage(0, 0);
+		SelectCHRPage(0, 0);
+	}
+
+	void WriteRegister(uint16_t addr, uint8_t value)
+	{
+		if(addr >= 0x8000) {
+			SetMirroringType(value & 0x01 ? MirroringType::Horizontal : MirroringType::Vertical);
+		} else {
+			SelectPRGPage(0, value >> 1);
+		}
+	}
+};
\ No newline at end of file
diff --git a/Core/MapperFactory.cpp b/Core/MapperFactory.cpp
index 663b233f..3a14273b 100644
--- a/Core/MapperFactory.cpp
+++ b/Core/MapperFactory.cpp
@@ -18,6 +18,8 @@
 #include "FDS.h"
 #include "FrontFareast.h"
 #include "GxRom.h"
+#include "Henggedianzi177.h"
+#include "Henggedianzi179.h"
 #include "IremG101.h"
 #include "IremH3001.h"
 #include "IremLrog017.h"
@@ -140,7 +142,7 @@ Supported mappers:  (... denotes bad mappers)
 |   |   |   |   |132|133|   |   |   |137|138|139|140|141|142|143|
 |144|145|146|147|148|149|150|151|152|153|154|155|156|157|   |159|
 |   |   |   |163|164|   |   |   |   |   |   |171|172|173|   |175|
-|176|   |   |   |180|   |182|   |184|185|   |   |   |189|   |191|
+|176|177|   |179|180|   |182|   |184|185|   |   |   |189|   |191|
 |192|193|194|195|   |   |   |   |200|201|202|203|   |205|206|207|
 |   |   |210|   |   |   |   |   |   |   |218|   |   |   |   |   |
 |   |225|226|227|228|   |230|231|232|   |   |   |   |   |   |   |
@@ -282,6 +284,8 @@ BaseMapper* MapperFactory::GetMapperFromID(RomData &romData)
 		case 173: return new Txc22211C();
 		case 175: return new Kaiser7022();
 		case 176: return new Waixing176();
+		case 177: return new Henggedianzi177();
+		case 179: return new Henggedianzi179();
 		case 180: return new UnRom_180();
 		case 182: return new MMC3_182();
 		case 184: return new Sunsoft184();