71 files changed, 2891 insertions, 958 deletions

diff --git a/src/core/hle/service/ac_u.cpp b/src/core/hle/service/ac_u.cpp
index 9af96f6b8..20a3fa2e5 100644
--- a/src/core/hle/service/ac_u.cpp
+++ b/src/core/hle/service/ac_u.cpp
@@ -1,5 +1,5 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #include "common/log.h"
@@ -11,6 +11,24 @@
 
 namespace AC_U {
 
+/**
+ * AC_U::GetWifiStatus service function
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ *      2 : Output connection type, 0 = none, 1 = Old3DS Internet, 2 = New3DS Internet.
+ */
+void GetWifiStatus(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+
+    // TODO(purpasmart96): This function is only a stub,
+    // it returns a valid result without implementing full functionality.
+
+    cmd_buff[1] = 0; // No error
+    cmd_buff[2] = 0; // Connection type set to none
+
+    LOG_WARNING(Service_AC, "(STUBBED) called");
+}
+
 const Interface::FunctionInfo FunctionTable[] = {
     {0x00010000, nullptr,               "CreateDefaultConfig"},
     {0x00040006, nullptr,               "ConnectAsync"},
@@ -18,7 +36,7 @@ const Interface::FunctionInfo FunctionTable[] = {
     {0x00080004, nullptr,               "CloseAsync"},
     {0x00090002, nullptr,               "GetCloseResult"},
     {0x000A0000, nullptr,               "GetLastErrorCode"},
-    {0x000D0000, nullptr,               "GetWifiStatus"},
+    {0x000D0000, GetWifiStatus,         "GetWifiStatus"},
     {0x000E0042, nullptr,               "GetCurrentAPInfo"},
     {0x00100042, nullptr,               "GetCurrentNZoneInfo"},
     {0x00110042, nullptr,               "GetNZoneApNumService"},
@@ -38,7 +56,4 @@ Interface::Interface() {
     Register(FunctionTable, ARRAY_SIZE(FunctionTable));
 }
 
-Interface::~Interface() {
-}
-
 } // namespace
diff --git a/src/core/hle/service/ac_u.h b/src/core/hle/service/ac_u.h
index c91b28353..f1d26ebe8 100644
--- a/src/core/hle/service/ac_u.h
+++ b/src/core/hle/service/ac_u.h
@@ -1,5 +1,5 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #pragma once
@@ -16,11 +16,7 @@ namespace AC_U {
 class Interface : public Service::Interface {
 public:
     Interface();
-    ~Interface();
-    /**
-     * Gets the string port name used by CTROS for the service
-     * @return Port name of service
-     */
+
     std::string GetPortName() const override {
         return "ac:u";
     }
diff --git a/src/core/hle/service/act_u.cpp b/src/core/hle/service/act_u.cpp
new file mode 100644
index 000000000..10870f14b
--- /dev/null
+++ b/src/core/hle/service/act_u.cpp
@@ -0,0 +1,24 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/log.h"
+#include "core/hle/hle.h"
+#include "core/hle/service/act_u.h"
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace ACT_U
+
+namespace ACT_U {
+
+// Empty arrays are illegal -- commented out until an entry is added.
+//const Interface::FunctionInfo FunctionTable[] = { };
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Interface class
+
+Interface::Interface() {
+    //Register(FunctionTable, ARRAY_SIZE(FunctionTable));
+}
+
+} // namespace
diff --git a/src/core/hle/service/act_u.h b/src/core/hle/service/act_u.h
new file mode 100644
index 000000000..be41454a4
--- /dev/null
+++ b/src/core/hle/service/act_u.h
@@ -0,0 +1,23 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "core/hle/service/service.h"
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace ACT_U
+
+namespace ACT_U {
+
+class Interface : public Service::Interface {
+public:
+    Interface();
+
+    std::string GetPortName() const override {
+        return "act:u";
+    }
+};
+
+} // namespace
diff --git a/src/core/hle/service/am_app.cpp b/src/core/hle/service/am_app.cpp
new file mode 100644
index 000000000..0b396b6d3
--- /dev/null
+++ b/src/core/hle/service/am_app.cpp
@@ -0,0 +1,24 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/log.h"
+#include "core/hle/hle.h"
+#include "core/hle/service/am_app.h"
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace AM_APP
+
+namespace AM_APP {
+
+// Empty arrays are illegal -- commented out until an entry is added.
+//const Interface::FunctionInfo FunctionTable[] = { };
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Interface class
+
+Interface::Interface() {
+    //Register(FunctionTable, ARRAY_SIZE(FunctionTable));
+}
+
+} // namespace
diff --git a/src/core/hle/service/am_app.h b/src/core/hle/service/am_app.h
new file mode 100644
index 000000000..50dc2f5a2
--- /dev/null
+++ b/src/core/hle/service/am_app.h
@@ -0,0 +1,23 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "core/hle/service/service.h"
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace AM_APP
+
+namespace AM_APP {
+
+class Interface : public Service::Interface {
+public:
+    Interface();
+
+    std::string GetPortName() const override {
+        return "am:app";
+    }
+};
+
+} // namespace
diff --git a/src/core/hle/service/am_net.cpp b/src/core/hle/service/am_net.cpp
index 403cac353..112844e5b 100644
--- a/src/core/hle/service/am_net.cpp
+++ b/src/core/hle/service/am_net.cpp
@@ -1,5 +1,5 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #include "common/log.h"
@@ -41,7 +41,4 @@ Interface::Interface() {
     Register(FunctionTable, ARRAY_SIZE(FunctionTable));
 }
 
-Interface::~Interface() {
-}
-
 } // namespace
diff --git a/src/core/hle/service/am_net.h b/src/core/hle/service/am_net.h
index 4816e1697..616c33ee8 100644
--- a/src/core/hle/service/am_net.h
+++ b/src/core/hle/service/am_net.h
@@ -1,5 +1,5 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #pragma once
@@ -14,11 +14,7 @@ namespace AM_NET {
 class Interface : public Service::Interface {
 public:
     Interface();
-    ~Interface();
-    /**
-     * Gets the string port name used by CTROS for the service
-     * @return Port name of service
-     */
+
     std::string GetPortName() const override {
         return "am:net";
     }
diff --git a/src/core/hle/service/apt_a.cpp b/src/core/hle/service/apt_a.cpp
new file mode 100644
index 000000000..dcf5ec4fe
--- /dev/null
+++ b/src/core/hle/service/apt_a.cpp
@@ -0,0 +1,34 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/log.h"
+#include "core/hle/hle.h"
+#include "core/hle/service/apt_a.h"
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace APT_A
+
+namespace APT_A {
+
+const Interface::FunctionInfo FunctionTable[] = {
+    {0x00010040, nullptr,               "GetLockHandle?"},
+    {0x00020080, nullptr,               "Initialize?"},
+    {0x00030040, nullptr,               "Enable?"},
+    {0x00040040, nullptr,               "Finalize?"},
+    {0x00050040, nullptr,               "GetAppletManInfo?"},
+    {0x00060040, nullptr,               "GetAppletInfo?"},
+    {0x003B0040, nullptr,               "CancelLibraryApplet?"},
+    {0x00430040, nullptr,               "NotifyToWait?"},
+    {0x004B00C2, nullptr,               "AppletUtility?"},
+    {0x00550040, nullptr,               "WriteInputToNsState?"},
+};
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Interface class
+
+Interface::Interface() {
+    Register(FunctionTable, ARRAY_SIZE(FunctionTable));
+}
+
+} // namespace
diff --git a/src/core/hle/service/apt_a.h b/src/core/hle/service/apt_a.h
new file mode 100644
index 000000000..6cbf1288f
--- /dev/null
+++ b/src/core/hle/service/apt_a.h
@@ -0,0 +1,23 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "core/hle/service/service.h"
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace APT_A
+
+namespace APT_A {
+
+class Interface : public Service::Interface {
+public:
+    Interface();
+
+    std::string GetPortName() const override {
+        return "APT:A";
+    }
+};
+
+} // namespace
diff --git a/src/core/hle/service/apt_u.cpp b/src/core/hle/service/apt_u.cpp
index 4bb05ce40..d8b261ba7 100644
--- a/src/core/hle/service/apt_u.cpp
+++ b/src/core/hle/service/apt_u.cpp
@@ -1,13 +1,15 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 
 #include "common/common.h"
+#include "common/file_util.h"
 
 #include "core/hle/hle.h"
 #include "core/hle/kernel/event.h"
 #include "core/hle/kernel/mutex.h"
+#include "core/hle/kernel/shared_memory.h"
 #include "apt_u.h"
 
 ////////////////////////////////////////////////////////////////////////////////////////////////////
@@ -15,7 +17,19 @@
 
 namespace APT_U {
 
+// Address used for shared font (as observed on HW)
+// TODO(bunnei): This is the hard-coded address where we currently dump the shared font from via
+// https://github.com/citra-emu/3dsutils. This is technically a hack, and will not work at any
+// address other than 0x18000000 due to internal pointers in the shared font dump that would need to
+// be relocated. This might be fixed by dumping the shared font @ address 0x00000000 and then
+// correctly mapping it in Citra, however we still do not understand how the mapping is determined.
+static const VAddr SHARED_FONT_VADDR = 0x18000000;
+
+// Handle to shared memory region designated to for shared system font
+static Handle shared_font_mem = 0;
+
 static Handle lock_handle = 0;
+static std::vector<u8> shared_font;
 
 /// Signals used by APT functions
 enum class SignalType : u32 {
@@ -26,7 +40,7 @@ enum class SignalType : u32 {
 };
 
 void Initialize(Service::Interface* self) {
-    u32* cmd_buff = Service::GetCommandBuffer();
+    u32* cmd_buff = Kernel::GetCommandBuffer();
 
     cmd_buff[3] = Kernel::CreateEvent(RESETTYPE_ONESHOT, "APT_U:Menu");  // APT menu event handle
     cmd_buff[4] = Kernel::CreateEvent(RESETTYPE_ONESHOT, "APT_U:Pause"); // APT pause event handle
@@ -39,11 +53,11 @@ void Initialize(Service::Interface* self) {
 
     cmd_buff[1] = 0; // No error
 
-    DEBUG_LOG(KERNEL, "called");
+    LOG_DEBUG(Service_APT, "called");
 }
 
 void GetLockHandle(Service::Interface* self) {
-    u32* cmd_buff = Service::GetCommandBuffer();
+    u32* cmd_buff = Kernel::GetCommandBuffer();
     u32 flags = cmd_buff[1]; // TODO(bunnei): Figure out the purpose of the flag field
 
     if (0 == lock_handle) {
@@ -60,22 +74,22 @@ void GetLockHandle(Service::Interface* self) {
     cmd_buff[4] = 0;
 
     cmd_buff[5] = lock_handle;
-    DEBUG_LOG(KERNEL, "called handle=0x%08X", cmd_buff[5]);
+    LOG_TRACE(Service_APT, "called handle=0x%08X", cmd_buff[5]);
 }
 
 void Enable(Service::Interface* self) {
-    u32* cmd_buff = Service::GetCommandBuffer();
+    u32* cmd_buff = Kernel::GetCommandBuffer();
     u32 unk = cmd_buff[1]; // TODO(bunnei): What is this field used for?
     cmd_buff[1] = 0; // No error
-    WARN_LOG(KERNEL, "(STUBBED) called unk=0x%08X", unk);
+    LOG_WARNING(Service_APT, "(STUBBED) called unk=0x%08X", unk);
 }
 
 void InquireNotification(Service::Interface* self) {
-    u32* cmd_buff = Service::GetCommandBuffer();
+    u32* cmd_buff = Kernel::GetCommandBuffer();
     u32 app_id = cmd_buff[2];
     cmd_buff[1] = 0; // No error
     cmd_buff[2] = static_cast<u32>(SignalType::None); // Signal type
-    WARN_LOG(KERNEL, "(STUBBED) called app_id=0x%08X", app_id);
+    LOG_WARNING(Service_APT, "(STUBBED) called app_id=0x%08X", app_id);
 }
 
 /**
@@ -84,21 +98,21 @@ void InquireNotification(Service::Interface* self) {
  * state so that this command will return an error if this command is used again if parameters were
  * not set again. This is called when the second Initialize event is triggered. It returns a signal
  * type indicating why it was triggered.
- * Inputs:
- * 1 : AppID
- * 2 : Parameter buffer size, max size is 0x1000
- * Outputs:
- * 1 : Result of function, 0 on success, otherwise error code
- * 2 : Unknown, for now assume AppID of the process which sent these parameters
- * 3 : Unknown, for now assume Signal type
- * 4 : Actual parameter buffer size, this is <= to the the input size
- * 5 : Value
- * 6 : Handle from the source process which set the parameters, likely used for shared memory
- * 7 : Size
- * 8 : Output parameter buffer ptr
+ *  Inputs:
+ *      1 : AppID
+ *      2 : Parameter buffer size, max size is 0x1000
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ *      2 : Unknown, for now assume AppID of the process which sent these parameters
+ *      3 : Unknown, for now assume Signal type
+ *      4 : Actual parameter buffer size, this is <= to the the input size
+ *      5 : Value
+ *      6 : Handle from the source process which set the parameters, likely used for shared memory
+ *      7 : Size
+ *      8 : Output parameter buffer ptr
  */
 void ReceiveParameter(Service::Interface* self) {
-    u32* cmd_buff = Service::GetCommandBuffer();
+    u32* cmd_buff = Kernel::GetCommandBuffer();
     u32 app_id = cmd_buff[1];
     u32 buffer_size = cmd_buff[2];
     cmd_buff[1] = 0; // No error
@@ -108,28 +122,28 @@ void ReceiveParameter(Service::Interface* self) {
     cmd_buff[5] = 0;
     cmd_buff[6] = 0;
     cmd_buff[7] = 0;
-    WARN_LOG(KERNEL, "(STUBBED) called app_id=0x%08X, buffer_size=0x%08X", app_id, buffer_size);
+    LOG_WARNING(Service_APT, "(STUBBED) called app_id=0x%08X, buffer_size=0x%08X", app_id, buffer_size);
 }
 
 /**
  * APT_U::GlanceParameter service function. This is exactly the same as APT_U::ReceiveParameter
  * (except for the word value prior to the output handle), except this will not clear the flag
  * (except when responseword[3]==8 || responseword[3]==9) in NS state.
- * Inputs:
- * 1 : AppID
- * 2 : Parameter buffer size, max size is 0x1000
- * Outputs:
- * 1 : Result of function, 0 on success, otherwise error code
- * 2 : Unknown, for now assume AppID of the process which sent these parameters
- * 3 : Unknown, for now assume Signal type
- * 4 : Actual parameter buffer size, this is <= to the the input size
- * 5 : Value
- * 6 : Handle from the source process which set the parameters, likely used for shared memory
- * 7 : Size
- * 8 : Output parameter buffer ptr
+ *  Inputs:
+ *      1 : AppID
+ *      2 : Parameter buffer size, max size is 0x1000
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ *      2 : Unknown, for now assume AppID of the process which sent these parameters
+ *      3 : Unknown, for now assume Signal type
+ *      4 : Actual parameter buffer size, this is <= to the the input size
+ *      5 : Value
+ *      6 : Handle from the source process which set the parameters, likely used for shared memory
+ *      7 : Size
+ *      8 : Output parameter buffer ptr
  */
 void GlanceParameter(Service::Interface* self) {
-    u32* cmd_buff = Service::GetCommandBuffer();
+    u32* cmd_buff = Kernel::GetCommandBuffer();
     u32 app_id = cmd_buff[1];
     u32 buffer_size = cmd_buff[2];
 
@@ -141,22 +155,22 @@ void GlanceParameter(Service::Interface* self) {
     cmd_buff[6] = 0;
     cmd_buff[7] = 0;
 
-    WARN_LOG(KERNEL, "(STUBBED) called app_id=0x%08X, buffer_size=0x%08X", app_id, buffer_size);
+    LOG_WARNING(Service_APT, "(STUBBED) called app_id=0x%08X, buffer_size=0x%08X", app_id, buffer_size);
 }
 
 /**
  * APT_U::AppletUtility service function
- * Inputs:
- * 1 : Unknown, but clearly used for something
- * 2 : Buffer 1 size (purpose is unknown)
- * 3 : Buffer 2 size (purpose is unknown)
- * 5 : Buffer 1 address (purpose is unknown)
- * 65 : Buffer 2 address (purpose is unknown)
- * Outputs:
- * 1 : Result of function, 0 on success, otherwise error code
+ *  Inputs:
+ *      1 : Unknown, but clearly used for something
+ *      2 : Buffer 1 size (purpose is unknown)
+ *      3 : Buffer 2 size (purpose is unknown)
+ *      5 : Buffer 1 address (purpose is unknown)
+ *      65 : Buffer 2 address (purpose is unknown)
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
  */
 void AppletUtility(Service::Interface* self) {
-    u32* cmd_buff = Service::GetCommandBuffer();
+    u32* cmd_buff = Kernel::GetCommandBuffer();
 
     // These are from 3dbrew - I'm not really sure what they're used for.
     u32 unk = cmd_buff[1];
@@ -167,11 +181,39 @@ void AppletUtility(Service::Interface* self) {
 
     cmd_buff[1] = 0; // No error
 
-    WARN_LOG(KERNEL, "(STUBBED) called unk=0x%08X, buffer1_size=0x%08x, buffer2_size=0x%08x, "
+    LOG_WARNING(Service_APT, "(STUBBED) called unk=0x%08X, buffer1_size=0x%08x, buffer2_size=0x%08x, "
              "buffer1_addr=0x%08x, buffer2_addr=0x%08x", unk, buffer1_size, buffer2_size,
              buffer1_addr, buffer2_addr);
 }
 
+/**
+ * APT_U::GetSharedFont service function
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ *      2 : Virtual address of where shared font will be loaded in memory
+ *      4 : Handle to shared font memory
+ */
+void GetSharedFont(Service::Interface* self) {
+    LOG_TRACE(Kernel_SVC, "called");
+
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+
+    if (!shared_font.empty()) {
+        // TODO(bunnei): This function shouldn't copy the shared font every time it's called.
+        // Instead, it should probably map the shared font as RO memory. We don't currently have
+        // an easy way to do this, but the copy should be sufficient for now.
+        memcpy(Memory::GetPointer(SHARED_FONT_VADDR), shared_font.data(), shared_font.size());
+
+        cmd_buff[0] = 0x00440082;
+        cmd_buff[1] = 0; // No error
+        cmd_buff[2] = SHARED_FONT_VADDR;
+        cmd_buff[4] = shared_font_mem;
+    } else {
+        cmd_buff[1] = -1; // Generic error (not really possible to verify this on hardware)
+        LOG_ERROR(Kernel_SVC, "called, but %s has not been loaded!", SHARED_FONT);
+    }
+}
+
 const Interface::FunctionInfo FunctionTable[] = {
     {0x00010040, GetLockHandle,         "GetLockHandle"},
     {0x00020080, Initialize,            "Initialize"},
@@ -240,7 +282,7 @@ const Interface::FunctionInfo FunctionTable[] = {
     {0x00410040, nullptr,               "ReceiveCaptureBufferInfo"},
     {0x00420080, nullptr,               "SleepSystem"},
     {0x00430040, nullptr,               "NotifyToWait"},
-    {0x00440000, nullptr,               "GetSharedFont"},
+    {0x00440000, GetSharedFont,         "GetSharedFont"},
     {0x00450040, nullptr,               "GetWirelessRebootInfo"},
     {0x00460104, nullptr,               "Wrap"},
     {0x00470104, nullptr,               "Unwrap"},
@@ -259,12 +301,33 @@ const Interface::FunctionInfo FunctionTable[] = {
 // Interface class
 
 Interface::Interface() {
-    Register(FunctionTable, ARRAY_SIZE(FunctionTable));
+    // Load the shared system font (if available).
+    // The expected format is a decrypted, uncompressed BCFNT file with the 0x80 byte header
+    // generated by the APT:U service. The best way to get is by dumping it from RAM. We've provided
+    // a homebrew app to do this: https://github.com/citra-emu/3dsutils. Put the resulting file
+    // "shared_font.bin" in the Citra "sysdata" directory.
+
+    shared_font.clear();
+    std::string filepath = FileUtil::GetUserPath(D_SYSDATA_IDX) + SHARED_FONT;
+
+    FileUtil::CreateFullPath(filepath); // Create path if not already created
+    FileUtil::IOFile file(filepath, "rb");
+
+    if (file.IsOpen()) {
+        // Read shared font data
+        shared_font.resize((size_t)file.GetSize());
+        file.ReadBytes(shared_font.data(), (size_t)file.GetSize());
+
+        // Create shared font memory object
+        shared_font_mem = Kernel::CreateSharedMemory("APT_U:shared_font_mem");
+    } else {
+        LOG_WARNING(Service_APT, "Unable to load shared font: %s", filepath.c_str());
+        shared_font_mem = 0;
+    }
 
     lock_handle = 0;
-}
 
-Interface::~Interface() {
+    Register(FunctionTable, ARRAY_SIZE(FunctionTable));
 }
 
 } // namespace
diff --git a/src/core/hle/service/apt_u.h b/src/core/hle/service/apt_u.h
index 306730400..aad918cfc 100644
--- a/src/core/hle/service/apt_u.h
+++ b/src/core/hle/service/apt_u.h
@@ -1,5 +1,5 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #pragma once
@@ -20,15 +20,8 @@ namespace APT_U {
 /// Interface to "APT:U" service
 class Interface : public Service::Interface {
 public:
-
     Interface();
 
-    ~Interface();
-
-    /**
-     * Gets the string port name used by CTROS for the service
-     * @return Port name of service
-     */
     std::string GetPortName() const override {
         return "APT:U";
     }
diff --git a/src/core/hle/service/boss_u.cpp b/src/core/hle/service/boss_u.cpp
index b2ff4a756..1820ea7ad 100644
--- a/src/core/hle/service/boss_u.cpp
+++ b/src/core/hle/service/boss_u.cpp
@@ -1,5 +1,5 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #include "common/log.h"
@@ -11,18 +11,15 @@
 
 namespace BOSS_U {
 
-    const Interface::FunctionInfo FunctionTable[] = {
-        {0x00020100, nullptr,               "GetStorageInfo"},
-    };
+const Interface::FunctionInfo FunctionTable[] = {
+    {0x00020100, nullptr,               "GetStorageInfo"},
+};
 
-    ////////////////////////////////////////////////////////////////////////////////////////////////////
-    // Interface class
-
-    Interface::Interface() {
-        Register(FunctionTable, ARRAY_SIZE(FunctionTable));
-    }
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Interface class
 
-    Interface::~Interface() {
-    }
+Interface::Interface() {
+    Register(FunctionTable, ARRAY_SIZE(FunctionTable));
+}
 
 } // namespace
diff --git a/src/core/hle/service/boss_u.h b/src/core/hle/service/boss_u.h
index af39b8e65..2668f2dfd 100644
--- a/src/core/hle/service/boss_u.h
+++ b/src/core/hle/service/boss_u.h
@@ -1,5 +1,5 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #pragma once
@@ -11,17 +11,13 @@
 
 namespace BOSS_U {
 
-    class Interface : public Service::Interface {
-    public:
-        Interface();
-        ~Interface();
-        /**
-         * Gets the string port name used by CTROS for the service
-         * @return Port name of service
-         */
-        std::string GetPortName() const {
-            return "boss:U";
-        }
-    };
+class Interface : public Service::Interface {
+public:
+    Interface();
+    
+    std::string GetPortName() const override {
+        return "boss:U";
+    }
+};
 
 } // namespace
diff --git a/src/core/hle/service/cecd_u.cpp b/src/core/hle/service/cecd_u.cpp
new file mode 100644
index 000000000..b7655ef0b
--- /dev/null
+++ b/src/core/hle/service/cecd_u.cpp
@@ -0,0 +1,24 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/log.h"
+#include "core/hle/hle.h"
+#include "core/hle/service/cecd_u.h"
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace CECD_U
+
+namespace CECD_U {
+
+// Empty arrays are illegal -- commented out until an entry is added.
+//const Interface::FunctionInfo FunctionTable[] = { };
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Interface class
+
+Interface::Interface() {
+    //Register(FunctionTable, ARRAY_SIZE(FunctionTable));
+}
+
+} // namespace
diff --git a/src/core/hle/service/cecd_u.h b/src/core/hle/service/cecd_u.h
new file mode 100644
index 000000000..e67564135
--- /dev/null
+++ b/src/core/hle/service/cecd_u.h
@@ -0,0 +1,23 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "core/hle/service/service.h"
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace CECD_U
+
+namespace CECD_U {
+
+class Interface : public Service::Interface {
+public:
+    Interface();
+
+    std::string GetPortName() const override {
+        return "cecd:u";
+    }
+};
+
+} // namespace
diff --git a/src/core/hle/service/cfg/cfg.cpp b/src/core/hle/service/cfg/cfg.cpp
new file mode 100644
index 000000000..161aa8531
--- /dev/null
+++ b/src/core/hle/service/cfg/cfg.cpp
@@ -0,0 +1,202 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <algorithm>
+#include "common/log.h"
+#include "common/make_unique.h"
+#include "core/file_sys/archive_systemsavedata.h"
+#include "core/hle/service/cfg/cfg.h"
+
+namespace Service {
+namespace CFG {
+
+const u64 CFG_SAVE_ID = 0x00010017;
+const u64 CONSOLE_UNIQUE_ID = 0xDEADC0DE;
+const ConsoleModelInfo CONSOLE_MODEL = { NINTENDO_3DS_XL, { 0, 0, 0 } };
+const u8 CONSOLE_LANGUAGE = LANGUAGE_EN;
+const char CONSOLE_USERNAME[0x14] = "CITRA";
+/// This will be initialized in CFGInit, and will be used when creating the block
+UsernameBlock CONSOLE_USERNAME_BLOCK;
+/// TODO(Subv): Find out what this actually is
+const u8 SOUND_OUTPUT_MODE = 2;
+const u8 UNITED_STATES_COUNTRY_ID = 49;
+/// TODO(Subv): Find what the other bytes are
+const ConsoleCountryInfo COUNTRY_INFO = { { 0, 0, 0 }, UNITED_STATES_COUNTRY_ID };
+
+/**
+ * TODO(Subv): Find out what this actually is, these values fix some NaN uniforms in some games,
+ * for example Nintendo Zone
+ * Thanks Normmatt for providing this information
+ */
+const std::array<float, 8> STEREO_CAMERA_SETTINGS = {
+    62.0f, 289.0f, 76.80000305175781f, 46.08000183105469f,
+    10.0f, 5.0f, 55.58000183105469f, 21.56999969482422f
+};
+
+static const u32 CONFIG_SAVEFILE_SIZE = 0x8000;
+static std::array<u8, CONFIG_SAVEFILE_SIZE> cfg_config_file_buffer;
+
+static std::unique_ptr<FileSys::Archive_SystemSaveData> cfg_system_save_data;
+
+ResultCode GetConfigInfoBlock(u32 block_id, u32 size, u32 flag, u8* output) {
+    // Read the header
+    SaveFileConfig* config = reinterpret_cast<SaveFileConfig*>(cfg_config_file_buffer.data());
+
+    auto itr = std::find_if(std::begin(config->block_entries), std::end(config->block_entries),
+            [&](const SaveConfigBlockEntry& entry) {
+                return entry.block_id == block_id && entry.size == size && (entry.flags & flag);
+            });
+
+    if (itr == std::end(config->block_entries)) {
+        LOG_ERROR(Service_CFG, "Config block %u with size %u and flags %u not found", block_id, size, flag);
+        return ResultCode(-1); // TODO(Subv): Find the correct error code
+    }
+
+    // The data is located in the block header itself if the size is less than 4 bytes
+    if (itr->size <= 4)
+        memcpy(output, &itr->offset_or_data, itr->size);
+    else
+        memcpy(output, &cfg_config_file_buffer[itr->offset_or_data], itr->size);
+
+    return RESULT_SUCCESS;
+}
+
+ResultCode CreateConfigInfoBlk(u32 block_id, u16 size, u16 flags, const u8* data) {
+    SaveFileConfig* config = reinterpret_cast<SaveFileConfig*>(cfg_config_file_buffer.data());
+    if (config->total_entries >= CONFIG_FILE_MAX_BLOCK_ENTRIES)
+        return ResultCode(-1); // TODO(Subv): Find the right error code
+
+    // Insert the block header with offset 0 for now
+    config->block_entries[config->total_entries] = { block_id, 0, size, flags };
+    if (size > 4) {
+        u32 offset = config->data_entries_offset;
+        // Perform a search to locate the next offset for the new data
+        // use the offset and size of the previous block to determine the new position
+        for (int i = config->total_entries - 1; i >= 0; --i) {
+            // Ignore the blocks that don't have a separate data offset
+            if (config->block_entries[i].size > 4) {
+                offset = config->block_entries[i].offset_or_data +
+                         config->block_entries[i].size;
+                break;
+            }
+        }
+
+        config->block_entries[config->total_entries].offset_or_data = offset;
+
+        // Write the data at the new offset
+        memcpy(&cfg_config_file_buffer[offset], data, size);
+    }
+    else {
+        // The offset_or_data field in the header contains the data itself if it's 4 bytes or less
+        memcpy(&config->block_entries[config->total_entries].offset_or_data, data, size);
+    }
+
+    ++config->total_entries;
+    return RESULT_SUCCESS;
+}
+
+ResultCode DeleteConfigNANDSaveFile() {
+    FileSys::Path path("config");
+    if (cfg_system_save_data->DeleteFile(path))
+        return RESULT_SUCCESS;
+    return ResultCode(-1); // TODO(Subv): Find the right error code
+}
+
+ResultCode UpdateConfigNANDSavegame() {
+    FileSys::Mode mode = {};
+    mode.write_flag = 1;
+    mode.create_flag = 1;
+    FileSys::Path path("config");
+    auto file = cfg_system_save_data->OpenFile(path, mode);
+    _assert_msg_(Service_CFG, file != nullptr, "could not open file");
+    file->Write(0, CONFIG_SAVEFILE_SIZE, 1, cfg_config_file_buffer.data());
+    return RESULT_SUCCESS;
+}
+
+ResultCode FormatConfig() {
+    ResultCode res = DeleteConfigNANDSaveFile();
+    if (!res.IsSuccess())
+        return res;
+    // Delete the old data
+    cfg_config_file_buffer.fill(0);
+    // Create the header
+    SaveFileConfig* config = reinterpret_cast<SaveFileConfig*>(cfg_config_file_buffer.data());
+    // This value is hardcoded, taken from 3dbrew, verified by hardware, it's always the same value
+    config->data_entries_offset = 0x455C;
+    // Insert the default blocks
+    res = CreateConfigInfoBlk(0x00050005, sizeof(STEREO_CAMERA_SETTINGS), 0xE,
+                              reinterpret_cast<const u8*>(STEREO_CAMERA_SETTINGS.data()));
+    if (!res.IsSuccess())
+        return res;
+    res = CreateConfigInfoBlk(0x00090001, sizeof(CONSOLE_UNIQUE_ID), 0xE,
+                              reinterpret_cast<const u8*>(&CONSOLE_UNIQUE_ID));
+    if (!res.IsSuccess())
+        return res;
+    res = CreateConfigInfoBlk(0x000F0004, sizeof(CONSOLE_MODEL), 0x8,
+                              reinterpret_cast<const u8*>(&CONSOLE_MODEL));
+    if (!res.IsSuccess())
+        return res;
+    res = CreateConfigInfoBlk(0x000A0002, sizeof(CONSOLE_LANGUAGE), 0xA, &CONSOLE_LANGUAGE);
+    if (!res.IsSuccess())
+        return res;
+    res = CreateConfigInfoBlk(0x00070001, sizeof(SOUND_OUTPUT_MODE), 0xE, &SOUND_OUTPUT_MODE);
+    if (!res.IsSuccess())
+        return res;
+    res = CreateConfigInfoBlk(0x000B0000, sizeof(COUNTRY_INFO), 0xE,
+                              reinterpret_cast<const u8*>(&COUNTRY_INFO));
+    if (!res.IsSuccess())
+        return res;
+    res = CreateConfigInfoBlk(0x000A0000, sizeof(CONSOLE_USERNAME_BLOCK), 0xE,
+                              reinterpret_cast<const u8*>(&CONSOLE_USERNAME_BLOCK));
+    if (!res.IsSuccess())
+        return res;
+    // Save the buffer to the file
+    res = UpdateConfigNANDSavegame();
+    if (!res.IsSuccess())
+        return res;
+    return RESULT_SUCCESS;
+}
+
+void CFGInit() {
+    // TODO(Subv): In the future we should use the FS service to query this archive, 
+    // currently it is not possible because you can only have one open archive of the same type at any time
+    std::string syssavedata_directory = FileUtil::GetUserPath(D_SYSSAVEDATA_IDX);
+    cfg_system_save_data = Common::make_unique<FileSys::Archive_SystemSaveData>(
+                           syssavedata_directory, CFG_SAVE_ID);
+    if (!cfg_system_save_data->Initialize()) {
+        LOG_CRITICAL(Service_CFG, "Could not initialize SystemSaveData archive for the CFG:U service");
+        return;
+    }
+
+    // TODO(Subv): All this code should be moved to cfg:i, 
+    // it's only here because we do not currently emulate the lower level code that uses that service
+    // Try to open the file in read-only mode to check its existence
+    FileSys::Mode mode = {};
+    mode.read_flag = 1;
+    FileSys::Path path("config");
+    auto file = cfg_system_save_data->OpenFile(path, mode);
+
+    // Load the config if it already exists
+    if (file != nullptr) {
+        file->Read(0, CONFIG_SAVEFILE_SIZE, cfg_config_file_buffer.data());
+        return;
+    }
+
+    // Initialize the Username block
+    // TODO(Subv): Initialize this directly in the variable when MSVC supports char16_t string literals
+    CONSOLE_USERNAME_BLOCK.ng_word = 0;
+    CONSOLE_USERNAME_BLOCK.zero = 0;
+    // Copy string to buffer and pad with zeros at the end
+    auto size = Common::UTF8ToUTF16(CONSOLE_USERNAME).copy(CONSOLE_USERNAME_BLOCK.username, 0x14);
+    std::fill(std::begin(CONSOLE_USERNAME_BLOCK.username) + size,
+              std::end(CONSOLE_USERNAME_BLOCK.username), 0);
+    FormatConfig();
+}
+
+void CFGShutdown() {
+
+}
+
+} // namespace CFG
+} // namespace Service
diff --git a/src/core/hle/service/cfg/cfg.h b/src/core/hle/service/cfg/cfg.h
new file mode 100644
index 000000000..c74527ca4
--- /dev/null
+++ b/src/core/hle/service/cfg/cfg.h
@@ -0,0 +1,144 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <array>
+#include "core/hle/result.h"
+
+namespace Service {
+namespace CFG {
+
+enum SystemModel {
+    NINTENDO_3DS = 0,
+    NINTENDO_3DS_XL = 1,
+    NEW_NINTENDO_3DS = 2,
+    NINTENDO_2DS = 3,
+    NEW_NINTENDO_3DS_XL = 4
+};
+
+enum SystemLanguage {
+    LANGUAGE_JP = 0,
+    LANGUAGE_EN = 1,
+    LANGUAGE_FR = 2,
+    LANGUAGE_DE = 3,
+    LANGUAGE_IT = 4,
+    LANGUAGE_ES = 5,
+    LANGUAGE_ZH = 6,
+    LANGUAGE_KO = 7,
+    LANGUAGE_NL = 8,
+    LANGUAGE_PT = 9,
+    LANGUAGE_RU = 10
+};
+
+/// Block header in the config savedata file
+struct SaveConfigBlockEntry {
+    u32 block_id;       ///< The id of the current block
+    u32 offset_or_data; ///< This is the absolute offset to the block data if the size is greater than 4 bytes, otherwise it contains the data itself
+    u16 size;           ///< The size of the block
+    u16 flags;          ///< The flags of the block, possibly used for access control
+};
+
+/// The maximum number of block entries that can exist in the config file
+static const u32 CONFIG_FILE_MAX_BLOCK_ENTRIES = 1479;
+
+/**
+* The header of the config savedata file,
+* contains information about the blocks in the file
+*/
+struct SaveFileConfig {
+    u16 total_entries;                        ///< The total number of set entries in the config file
+    u16 data_entries_offset;                  ///< The offset where the data for the blocks start, this is hardcoded to 0x455C as per hardware
+    SaveConfigBlockEntry block_entries[CONFIG_FILE_MAX_BLOCK_ENTRIES]; ///< The block headers, the maximum possible value is 1479 as per hardware
+    u32 unknown;                              ///< This field is unknown, possibly padding, 0 has been observed in hardware
+};
+static_assert(sizeof(SaveFileConfig) == 0x455C, "The SaveFileConfig header must be exactly 0x455C bytes");
+
+struct UsernameBlock {
+    char16_t username[10]; ///< Exactly 20 bytes long, padded with zeros at the end if necessary
+    u32 zero;
+    u32 ng_word;
+};
+static_assert(sizeof(UsernameBlock) == 0x1C, "Size of UsernameBlock must be 0x1C");
+
+struct ConsoleModelInfo {
+    u8 model;       ///< The console model (3DS, 2DS, etc)
+    u8 unknown[3];  ///< Unknown data
+};
+static_assert(sizeof(ConsoleModelInfo) == 4, "ConsoleModelInfo must be exactly 4 bytes");
+
+struct ConsoleCountryInfo {
+    u8 unknown[3];   ///< Unknown data
+    u8 country_code; ///< The country code of the console
+};
+static_assert(sizeof(ConsoleCountryInfo) == 4, "ConsoleCountryInfo must be exactly 4 bytes");
+
+extern const u64 CFG_SAVE_ID;
+extern const u64 CONSOLE_UNIQUE_ID;
+extern const ConsoleModelInfo CONSOLE_MODEL;
+extern const u8 CONSOLE_LANGUAGE;
+extern const char CONSOLE_USERNAME[0x14];
+/// This will be initialized in the Interface constructor, and will be used when creating the block
+extern UsernameBlock CONSOLE_USERNAME_BLOCK;
+/// TODO(Subv): Find out what this actually is
+extern const u8 SOUND_OUTPUT_MODE;
+extern const u8 UNITED_STATES_COUNTRY_ID;
+/// TODO(Subv): Find what the other bytes are
+extern const ConsoleCountryInfo COUNTRY_INFO;
+extern const std::array<float, 8> STEREO_CAMERA_SETTINGS;
+
+static_assert(sizeof(STEREO_CAMERA_SETTINGS) == 0x20, "STEREO_CAMERA_SETTINGS must be exactly 0x20 bytes");
+static_assert(sizeof(CONSOLE_UNIQUE_ID) == 8, "CONSOLE_UNIQUE_ID must be exactly 8 bytes");
+static_assert(sizeof(CONSOLE_LANGUAGE) == 1, "CONSOLE_LANGUAGE must be exactly 1 byte");
+static_assert(sizeof(SOUND_OUTPUT_MODE) == 1, "SOUND_OUTPUT_MODE must be exactly 1 byte");
+
+/**
+ * Reads a block with the specified id and flag from the Config savegame buffer
+ * and writes the output to output.
+ * The input size must match exactly the size of the requested block
+ * @param block_id The id of the block we want to read
+ * @param size The size of the block we want to read
+ * @param flag The requested block must have this flag set
+ * @param output A pointer where we will write the read data
+ * @returns ResultCode indicating the result of the operation, 0 on success
+ */
+ResultCode GetConfigInfoBlock(u32 block_id, u32 size, u32 flag, u8* output);
+
+/**
+ * Creates a block with the specified id and writes the input data to the cfg savegame buffer in memory.
+ * The config savegame file in the filesystem is not updated.
+ * @param block_id The id of the block we want to create
+ * @param size The size of the block we want to create
+ * @param flag The flags of the new block
+ * @param data A pointer containing the data we will write to the new block
+ * @returns ResultCode indicating the result of the operation, 0 on success
+ */
+ResultCode CreateConfigInfoBlk(u32 block_id, u16 size, u16 flags, const u8* data);
+
+/**
+ * Deletes the config savegame file from the filesystem, the buffer in memory is not affected
+ * @returns ResultCode indicating the result of the operation, 0 on success
+ */
+ResultCode DeleteConfigNANDSaveFile();
+
+/**
+ * Writes the config savegame memory buffer to the config savegame file in the filesystem
+ * @returns ResultCode indicating the result of the operation, 0 on success
+ */
+ResultCode UpdateConfigNANDSavegame();
+
+/**
+ * Re-creates the config savegame file in memory and the filesystem with the default blocks
+ * @returns ResultCode indicating the result of the operation, 0 on success
+ */
+ResultCode FormatConfig();
+
+/// Initialize the config service
+void CFGInit();
+
+/// Shutdown the config service
+void CFGShutdown();
+
+} // namespace CFG
+} // namespace Service
diff --git a/src/core/hle/service/cfg/cfg_i.cpp b/src/core/hle/service/cfg/cfg_i.cpp
new file mode 100644
index 000000000..7c1ee8ac3
--- /dev/null
+++ b/src/core/hle/service/cfg/cfg_i.cpp
@@ -0,0 +1,110 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/log.h"
+#include "core/hle/hle.h"
+#include "core/hle/service/cfg/cfg.h"
+#include "core/hle/service/cfg/cfg_i.h"
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace CFG_I
+
+namespace CFG_I {
+    
+/**
+ * CFG_I::GetConfigInfoBlk8 service function
+ * This function is called by two command headers,
+ * there appears to be no difference between them according to 3dbrew
+ *  Inputs:
+ *      0 : 0x04010082 / 0x08010082
+ *      1 : Size
+ *      2 : Block ID
+ *      3 : Descriptor for the output buffer
+ *      4 : Output buffer pointer
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ */
+static void GetConfigInfoBlk8(Service::Interface* self) {
+    u32* cmd_buffer = Kernel::GetCommandBuffer();
+    u32 size = cmd_buffer[1];
+    u32 block_id = cmd_buffer[2];
+    u8* data_pointer = Memory::GetPointer(cmd_buffer[4]);
+
+    if (data_pointer == nullptr) {
+        cmd_buffer[1] = -1; // TODO(Subv): Find the right error code
+        return;
+    }
+
+    cmd_buffer[1] = Service::CFG::GetConfigInfoBlock(block_id, size, 0x8, data_pointer).raw;
+}
+
+/**
+ * CFG_I::UpdateConfigNANDSavegame service function
+ * This function is called by two command headers, 
+ * there appears to be no difference between them according to 3dbrew
+ *  Inputs:
+ *      0 : 0x04030000 / 0x08030000
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ */
+static void UpdateConfigNANDSavegame(Service::Interface* self) {
+    u32* cmd_buffer = Kernel::GetCommandBuffer();
+    cmd_buffer[1] = Service::CFG::UpdateConfigNANDSavegame().raw;
+}
+
+/**
+ * CFG_I::FormatConfig service function
+ *  Inputs:
+ *      0 : 0x08060000
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ */
+static void FormatConfig(Service::Interface* self) {
+    u32* cmd_buffer = Kernel::GetCommandBuffer();
+    cmd_buffer[1] = Service::CFG::FormatConfig().raw;
+}
+
+const Interface::FunctionInfo FunctionTable[] = {
+    {0x04010082, GetConfigInfoBlk8,                    "GetConfigInfoBlk8"},
+    {0x04020082, nullptr,                              "SetConfigInfoBlk4"},
+    {0x04030000, UpdateConfigNANDSavegame,             "UpdateConfigNANDSavegame"},
+    {0x04040042, nullptr,                              "GetLocalFriendCodeSeedData"},
+    {0x04050000, nullptr,                              "GetLocalFriendCodeSeed"},
+    {0x04060000, nullptr,                              "SecureInfoGetRegion"},
+    {0x04070000, nullptr,                              "SecureInfoGetByte101"},
+    {0x04080042, nullptr,                              "SecureInfoGetSerialNo"},
+    {0x04090000, nullptr,                              "UpdateConfigBlk00040003"},
+    {0x08010082, GetConfigInfoBlk8,                    "GetConfigInfoBlk8"},
+    {0x08020082, nullptr,                              "SetConfigInfoBlk4"},
+    {0x08030000, UpdateConfigNANDSavegame,             "UpdateConfigNANDSavegame"},
+    {0x080400C2, nullptr,                              "CreateConfigInfoBlk"},
+    {0x08050000, nullptr,                              "DeleteConfigNANDSavefile"},
+    {0x08060000, FormatConfig,                         "FormatConfig"},
+    {0x08080000, nullptr,                              "UpdateConfigBlk1"},
+    {0x08090000, nullptr,                              "UpdateConfigBlk2"},
+    {0x080A0000, nullptr,                              "UpdateConfigBlk3"},
+    {0x080B0082, nullptr,                              "SetGetLocalFriendCodeSeedData"},
+    {0x080C0042, nullptr,                              "SetLocalFriendCodeSeedSignature"},
+    {0x080D0000, nullptr,                              "DeleteCreateNANDLocalFriendCodeSeed"},
+    {0x080E0000, nullptr,                              "VerifySigLocalFriendCodeSeed"},
+    {0x080F0042, nullptr,                              "GetLocalFriendCodeSeedData"},
+    {0x08100000, nullptr,                              "GetLocalFriendCodeSeed"},
+    {0x08110084, nullptr,                              "SetSecureInfo"},
+    {0x08120000, nullptr,                              "DeleteCreateNANDSecureInfo"},
+    {0x08130000, nullptr,                              "VerifySigSecureInfo"},
+    {0x08140042, nullptr,                              "SecureInfoGetData"},
+    {0x08150042, nullptr,                              "SecureInfoGetSignature"},
+    {0x08160000, nullptr,                              "SecureInfoGetRegion"},
+    {0x08170000, nullptr,                              "SecureInfoGetByte101"},
+    {0x08180042, nullptr,                              "SecureInfoGetSerialNo"},
+};
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Interface class
+
+Interface::Interface() {
+    Register(FunctionTable, ARRAY_SIZE(FunctionTable));
+}
+
+} // namespace
diff --git a/src/core/hle/service/cfg_i.h b/src/core/hle/service/cfg/cfg_i.h
index fe343c968..a498dd589 100644
--- a/src/core/hle/service/cfg_i.h
+++ b/src/core/hle/service/cfg/cfg_i.h
@@ -1,5 +1,5 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #pragma once
@@ -14,11 +14,7 @@ namespace CFG_I {
 class Interface : public Service::Interface {
 public:
     Interface();
-    ~Interface();
-    /**
-     * Gets the string port name used by CTROS for the service
-     * @return Port name of service
-     */
+
     std::string GetPortName() const override {
         return "cfg:i";
     }
diff --git a/src/core/hle/service/cfg/cfg_u.cpp b/src/core/hle/service/cfg/cfg_u.cpp
new file mode 100644
index 000000000..03c01cf90
--- /dev/null
+++ b/src/core/hle/service/cfg/cfg_u.cpp
@@ -0,0 +1,192 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/file_util.h"
+#include "common/log.h"
+#include "common/string_util.h"
+#include "core/file_sys/archive_systemsavedata.h"
+#include "core/hle/hle.h"
+#include "core/hle/service/cfg/cfg.h"
+#include "core/hle/service/cfg/cfg_u.h"
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace CFG_U
+
+namespace CFG_U {
+
+// TODO(Link Mauve): use a constexpr once MSVC starts supporting it.
+#define C(code) ((code)[0] | ((code)[1] << 8))
+
+static const std::array<u16, 187> country_codes = {
+    0,       C("JP"), 0,       0,       0,       0,       0,       0,       // 0-7
+    C("AI"), C("AG"), C("AR"), C("AW"), C("BS"), C("BB"), C("BZ"), C("BO"), // 8-15
+    C("BR"), C("VG"), C("CA"), C("KY"), C("CL"), C("CO"), C("CR"), C("DM"), // 16-23
+    C("DO"), C("EC"), C("SV"), C("GF"), C("GD"), C("GP"), C("GT"), C("GY"), // 24-31
+    C("HT"), C("HN"), C("JM"), C("MQ"), C("MX"), C("MS"), C("AN"), C("NI"), // 32-39
+    C("PA"), C("PY"), C("PE"), C("KN"), C("LC"), C("VC"), C("SR"), C("TT"), // 40-47
+    C("TC"), C("US"), C("UY"), C("VI"), C("VE"), 0,       0,       0,       // 48-55
+    0,       0,       0,       0,       0,       0,       0,       0,       // 56-63
+    C("AL"), C("AU"), C("AT"), C("BE"), C("BA"), C("BW"), C("BG"), C("HR"), // 64-71
+    C("CY"), C("CZ"), C("DK"), C("EE"), C("FI"), C("FR"), C("DE"), C("GR"), // 72-79
+    C("HU"), C("IS"), C("IE"), C("IT"), C("LV"), C("LS"), C("LI"), C("LT"), // 80-87
+    C("LU"), C("MK"), C("MT"), C("ME"), C("MZ"), C("NA"), C("NL"), C("NZ"), // 88-95
+    C("NO"), C("PL"), C("PT"), C("RO"), C("RU"), C("RS"), C("SK"), C("SI"), // 96-103
+    C("ZA"), C("ES"), C("SZ"), C("SE"), C("CH"), C("TR"), C("GB"), C("ZM"), // 104-111
+    C("ZW"), C("AZ"), C("MR"), C("ML"), C("NE"), C("TD"), C("SD"), C("ER"), // 112-119
+    C("DJ"), C("SO"), C("AD"), C("GI"), C("GG"), C("IM"), C("JE"), C("MC"), // 120-127
+    C("TW"), 0,       0,       0,       0,       0,       0,       0,       // 128-135
+    C("KR"), 0,       0,       0,       0,       0,       0,       0,       // 136-143
+    C("HK"), C("MO"), 0,       0,       0,       0,       0,       0,       // 144-151
+    C("ID"), C("SG"), C("TH"), C("PH"), C("MY"), 0,       0,       0,       // 152-159
+    C("CN"), 0,       0,       0,       0,       0,       0,       0,       // 160-167
+    C("AE"), C("IN"), C("EG"), C("OM"), C("QA"), C("KW"), C("SA"), C("SY"), // 168-175
+    C("BH"), C("JO"), 0,       0,       0,       0,       0,       0,       // 176-183
+    C("SM"), C("VA"), C("BM")                                               // 184-186
+};
+
+#undef C
+
+/**
+ * CFG_User::GetCountryCodeString service function
+ *  Inputs:
+ *      1 : Country Code ID
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ *      2 : Country's 2-char string
+ */
+static void GetCountryCodeString(Service::Interface* self) {
+    u32* cmd_buffer = Kernel::GetCommandBuffer();
+    u32 country_code_id = cmd_buffer[1];
+
+    if (country_code_id >= country_codes.size() || 0 == country_codes[country_code_id]) {
+        LOG_ERROR(Service_CFG, "requested country code id=%d is invalid", country_code_id);
+        cmd_buffer[1] = ResultCode(ErrorDescription::NotFound, ErrorModule::Config, ErrorSummary::WrongArgument, ErrorLevel::Permanent).raw;
+        return;
+    }
+
+    cmd_buffer[1] = 0;
+    cmd_buffer[2] = country_codes[country_code_id];
+}
+
+/**
+ * CFG_User::GetCountryCodeID service function
+ *  Inputs:
+ *      1 : Country Code 2-char string
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ *      2 : Country Code ID
+ */
+static void GetCountryCodeID(Service::Interface* self) {
+    u32* cmd_buffer = Kernel::GetCommandBuffer();
+    u16 country_code = cmd_buffer[1];
+    u16 country_code_id = 0;
+
+    // The following algorithm will fail if the first country code isn't 0.
+    _dbg_assert_(Service_CFG, country_codes[0] == 0);
+
+    for (size_t id = 0; id < country_codes.size(); ++id) {
+        if (country_codes[id] == country_code) {
+            country_code_id = id;
+            break;
+        }
+    }
+
+    if (0 == country_code_id) {
+        LOG_ERROR(Service_CFG, "requested country code name=%c%c is invalid", country_code & 0xff, country_code >> 8);
+        cmd_buffer[1] = ResultCode(ErrorDescription::NotFound, ErrorModule::Config, ErrorSummary::WrongArgument, ErrorLevel::Permanent).raw;
+        cmd_buffer[2] = 0xFFFF;
+        return;
+    }
+
+    cmd_buffer[1] = 0;
+    cmd_buffer[2] = country_code_id;
+}
+
+/**
+ * CFG_User::GetConfigInfoBlk2 service function
+ *  Inputs:
+ *      0 : 0x00010082
+ *      1 : Size
+ *      2 : Block ID
+ *      3 : Descriptor for the output buffer
+ *      4 : Output buffer pointer
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ */
+static void GetConfigInfoBlk2(Service::Interface* self) {
+    u32* cmd_buffer = Kernel::GetCommandBuffer();
+    u32 size = cmd_buffer[1];
+    u32 block_id = cmd_buffer[2];
+    u8* data_pointer = Memory::GetPointer(cmd_buffer[4]);
+    
+    if (data_pointer == nullptr) {
+        cmd_buffer[1] = -1; // TODO(Subv): Find the right error code
+        return;
+    }
+
+    cmd_buffer[1] = Service::CFG::GetConfigInfoBlock(block_id, size, 0x2, data_pointer).raw;
+}
+
+/**
+ * CFG_User::GetSystemModel service function
+ *  Inputs:
+ *      0 : 0x00050000
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ *      2 : Model of the console
+ */
+static void GetSystemModel(Service::Interface* self) {
+    u32* cmd_buffer = Kernel::GetCommandBuffer();
+    u32 data;
+
+    // TODO(Subv): Find out the correct error codes
+    cmd_buffer[1] = Service::CFG::GetConfigInfoBlock(0x000F0004, 4, 0x8,
+                                                     reinterpret_cast<u8*>(&data)).raw; 
+    cmd_buffer[2] = data & 0xFF;
+}
+
+/**
+ * CFG_User::GetModelNintendo2DS service function
+ *  Inputs:
+ *      0 : 0x00060000
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ *      2 : 0 if the system is a Nintendo 2DS, 1 otherwise
+ */
+static void GetModelNintendo2DS(Service::Interface* self) {
+    u32* cmd_buffer = Kernel::GetCommandBuffer();
+    u32 data;
+
+    // TODO(Subv): Find out the correct error codes
+    cmd_buffer[1] = Service::CFG::GetConfigInfoBlock(0x000F0004, 4, 0x8,
+                                                     reinterpret_cast<u8*>(&data)).raw; 
+    
+    u8 model = data & 0xFF;
+    if (model == Service::CFG::NINTENDO_2DS)
+        cmd_buffer[2] = 0;
+    else
+        cmd_buffer[2] = 1;
+}
+
+const Interface::FunctionInfo FunctionTable[] = {
+    {0x00010082, GetConfigInfoBlk2,     "GetConfigInfoBlk2"},
+    {0x00020000, nullptr,               "SecureInfoGetRegion"},
+    {0x00030000, nullptr,               "GenHashConsoleUnique"},
+    {0x00040000, nullptr,               "GetRegionCanadaUSA"},
+    {0x00050000, GetSystemModel,        "GetSystemModel"},
+    {0x00060000, GetModelNintendo2DS,   "GetModelNintendo2DS"},
+    {0x00070040, nullptr,               "unknown"},
+    {0x00080080, nullptr,               "unknown"},
+    {0x00090040, GetCountryCodeString,  "GetCountryCodeString"},
+    {0x000A0040, GetCountryCodeID,      "GetCountryCodeID"},
+};
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Interface class
+
+Interface::Interface() {
+    Register(FunctionTable, ARRAY_SIZE(FunctionTable));
+}
+
+} // namespace
diff --git a/src/core/hle/service/cfg_u.h b/src/core/hle/service/cfg/cfg_u.h
index 8075d19a8..9ad73f355 100644
--- a/src/core/hle/service/cfg_u.h
+++ b/src/core/hle/service/cfg/cfg_u.h
@@ -1,5 +1,5 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #pragma once
@@ -14,11 +14,7 @@ namespace CFG_U {
 class Interface : public Service::Interface {
 public:
     Interface();
-    ~Interface();
-    /**
-     * Gets the string port name used by CTROS for the service
-     * @return Port name of service
-     */
+
     std::string GetPortName() const override {
         return "cfg:u";
     }
diff --git a/src/core/hle/service/cfg_i.cpp b/src/core/hle/service/cfg_i.cpp
deleted file mode 100644
index 88d13d459..000000000
--- a/src/core/hle/service/cfg_i.cpp
+++ /dev/null
@@ -1,59 +0,0 @@
-// Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
-// Refer to the license.txt file included.
-
-#include "common/log.h"
-#include "core/hle/hle.h"
-#include "core/hle/service/cfg_i.h"
-
-////////////////////////////////////////////////////////////////////////////////////////////////////
-// Namespace CFG_I
-
-namespace CFG_I {
-
-const Interface::FunctionInfo FunctionTable[] = {
-    {0x04010082, nullptr,               "GetConfigInfoBlk8"},
-    {0x04020082, nullptr,               "GetConfigInfoBlk4"},
-    {0x04030000, nullptr,               "UpdateConfigNANDSavegame"},
-    {0x04040042, nullptr,               "GetLocalFriendCodeSeedData"},
-    {0x04050000, nullptr,               "GetLocalFriendCodeSeed"},
-    {0x04060000, nullptr,               "SecureInfoGetRegion"},
-    {0x04070000, nullptr,               "SecureInfoGetByte101"},
-    {0x04080042, nullptr,               "SecureInfoGetSerialNo"},
-    {0x04090000, nullptr,               "UpdateConfigBlk00040003"},
-    {0x08010082, nullptr,               "GetConfigInfoBlk8"},
-    {0x08020082, nullptr,               "GetConfigInfoBlk4"},
-    {0x08030000, nullptr,               "UpdateConfigNANDSavegame"},
-    {0x080400C2, nullptr,               "CreateConfigInfoBlk"},
-    {0x08050000, nullptr,               "DeleteConfigNANDSavefile"},
-    {0x08060000, nullptr,               "FormatConfig"},
-    {0x08070000, nullptr,               "Unknown"},
-    {0x08080000, nullptr,               "UpdateConfigBlk1"},
-    {0x08090000, nullptr,               "UpdateConfigBlk2"},
-    {0x080A0000, nullptr,               "UpdateConfigBlk3"},
-    {0x080B0082, nullptr,               "SetGetLocalFriendCodeSeedData"},
-    {0x080C0042, nullptr,               "SetLocalFriendCodeSeedSignature"},
-    {0x080D0000, nullptr,               "DeleteCreateNANDLocalFriendCodeSeed"},
-    {0x080E0000, nullptr,               "VerifySigLocalFriendCodeSeed"},
-    {0x080F0042, nullptr,               "GetLocalFriendCodeSeedData"},
-    {0x08100000, nullptr,               "GetLocalFriendCodeSeed"},
-    {0x08110084, nullptr,               "SetSecureInfo"},
-    {0x08120000, nullptr,               "DeleteCreateNANDSecureInfo"},
-    {0x08130000, nullptr,               "VerifySigSecureInfo"},
-    {0x08140042, nullptr,               "SecureInfoGetData"},
-    {0x08150042, nullptr,               "SecureInfoGetSignature"},
-    {0x08160000, nullptr,               "SecureInfoGetRegion"},
-    {0x08170000, nullptr,               "SecureInfoGetByte101"},
-    {0x08180042, nullptr,               "SecureInfoGetSerialNo"},
-};
-////////////////////////////////////////////////////////////////////////////////////////////////////
-// Interface class
-
-Interface::Interface() {
-    Register(FunctionTable, ARRAY_SIZE(FunctionTable));
-}
-
-Interface::~Interface() {
-}
-
-} // namespace
diff --git a/src/core/hle/service/cfg_u.cpp b/src/core/hle/service/cfg_u.cpp
deleted file mode 100644
index 822b0e2b8..000000000
--- a/src/core/hle/service/cfg_u.cpp
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
-// Refer to the license.txt file included.
-
-#include "common/log.h"
-#include "core/hle/hle.h"
-#include "core/hle/service/cfg_u.h"
-
-////////////////////////////////////////////////////////////////////////////////////////////////////
-// Namespace CFG_U
-
-namespace CFG_U {
-
-const Interface::FunctionInfo FunctionTable[] = {
-    {0x00010082, nullptr,               "GetConfigInfoBlk2"},
-    {0x00020000, nullptr,               "SecureInfoGetRegion"},
-    {0x00030000, nullptr,               "GenHashConsoleUnique"},
-    {0x00040000, nullptr,               "GetRegionCanadaUSA"},
-    {0x00050000, nullptr,               "GetSystemModel"},
-    {0x00060000, nullptr,               "GetModelNintendo2DS"},
-    {0x00070040, nullptr,               "unknown"},
-    {0x00080080, nullptr,               "unknown"},
-    {0x00090080, nullptr,               "GetCountryCodeString"},
-    {0x000A0040, nullptr,               "GetCountryCodeID"},
-};
-////////////////////////////////////////////////////////////////////////////////////////////////////
-// Interface class
-
-Interface::Interface() {
-    Register(FunctionTable, ARRAY_SIZE(FunctionTable));
-}
-
-Interface::~Interface() {
-}
-
-} // namespace
diff --git a/src/core/hle/service/csnd_snd.cpp b/src/core/hle/service/csnd_snd.cpp
index 6e59a9bf3..aef8cfbca 100644
--- a/src/core/hle/service/csnd_snd.cpp
+++ b/src/core/hle/service/csnd_snd.cpp
@@ -1,5 +1,5 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #include "common/log.h"
@@ -33,7 +33,4 @@ Interface::Interface() {
     Register(FunctionTable, ARRAY_SIZE(FunctionTable));
 }
 
-Interface::~Interface() {
-}
-
 } // namespace
diff --git a/src/core/hle/service/csnd_snd.h b/src/core/hle/service/csnd_snd.h
index 31cc85b07..a84752473 100644
--- a/src/core/hle/service/csnd_snd.h
+++ b/src/core/hle/service/csnd_snd.h
@@ -1,5 +1,5 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #pragma once
@@ -14,11 +14,7 @@ namespace CSND_SND {
 class Interface : public Service::Interface {
 public:
     Interface();
-    ~Interface();
-    /**
-     * Gets the string port name used by CTROS for the service
-     * @return Port name of service
-     */
+
     std::string GetPortName() const override {
         return "csnd:SND";
     }
diff --git a/src/core/hle/service/dsp_dsp.cpp b/src/core/hle/service/dsp_dsp.cpp
index bbcf26f61..2cf4d118f 100644
--- a/src/core/hle/service/dsp_dsp.cpp
+++ b/src/core/hle/service/dsp_dsp.cpp
@@ -1,9 +1,10 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #include "common/log.h"
 #include "core/hle/hle.h"
+#include "core/hle/kernel/event.h"
 #include "core/hle/service/dsp_dsp.h"
 
 ////////////////////////////////////////////////////////////////////////////////////////////////////
@@ -11,42 +12,182 @@
 
 namespace DSP_DSP {
 
+static u32 read_pipe_count;
+static Handle semaphore_event;
+static Handle interrupt_event;
+
+/**
+ * DSP_DSP::ConvertProcessAddressFromDspDram service function
+ *  Inputs:
+ *      1 : Address
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ *      2 : (inaddr << 1) + 0x1FF40000 (where 0x1FF00000 is the DSP RAM address)
+ */
+void ConvertProcessAddressFromDspDram(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+
+    u32 addr = cmd_buff[1];
+
+    cmd_buff[1] = 0; // No error
+    cmd_buff[2] = (addr << 1) + (Memory::DSP_MEMORY_VADDR + 0x40000);
+
+    LOG_WARNING(Service_DSP, "(STUBBED) called with address %u", addr);
+}
+
+/**
+ * DSP_DSP::LoadComponent service function
+ *  Inputs:
+ *      1 : Size
+ *      2 : Unknown (observed only half word used)
+ *      3 : Unknown (observed only half word used)
+ *      4 : (size << 4) | 0xA
+ *      5 : Buffer address
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ *      2 : Component loaded, 0 on not loaded, 1 on loaded
+ */
+void LoadComponent(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+
+    cmd_buff[1] = 0; // No error
+    cmd_buff[2] = 1; // Pretend that we actually loaded the DSP firmware
+
+    // TODO(bunnei): Implement real DSP firmware loading
+
+    LOG_WARNING(Service_DSP, "(STUBBED) called");
+}
+
+/**
+ * DSP_DSP::GetSemaphoreEventHandle service function
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ *      3 : Semaphore event handle
+ */
+void GetSemaphoreEventHandle(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+
+    cmd_buff[1] = 0; // No error
+    cmd_buff[3] = semaphore_event; // Event handle
+
+    LOG_WARNING(Service_DSP, "(STUBBED) called");
+}
+
+/**
+ * DSP_DSP::RegisterInterruptEvents service function
+ *  Inputs:
+ *      1 : Parameter 0 (purpose unknown)
+ *      2 : Parameter 1 (purpose unknown)
+ *      4 : Interrupt event handle
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ */
+void RegisterInterruptEvents(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+
+    interrupt_event = static_cast<Handle>(cmd_buff[4]);
+
+    cmd_buff[1] = 0; // No error
+
+    LOG_WARNING(Service_DSP, "(STUBBED) called");
+}
+
+/**
+ * DSP_DSP::WriteReg0x10 service function
+ *  Inputs:
+ *      1 : Unknown (observed only half word used)
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ */
+void WriteReg0x10(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+
+    Kernel::SignalEvent(interrupt_event);
+
+    cmd_buff[1] = 0; // No error
+
+    LOG_WARNING(Service_DSP, "(STUBBED) called");
+}
+
+/**
+ * DSP_DSP::ReadPipeIfPossible service function
+ *  Inputs:
+ *      1 : Unknown
+ *      2 : Unknown
+ *      3 : Size in bytes of read (observed only lower half word used)
+ *      0x41 : Virtual address to read from DSP pipe to in memory
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ *      2 : Number of bytes read from pipe
+ */
+void ReadPipeIfPossible(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+
+    u32 size = cmd_buff[3] & 0xFFFF;// Lower 16 bits are size
+    VAddr addr = cmd_buff[0x41];
+
+    // Canned DSP responses that games expect. These were taken from HW by 3dmoo team.
+    // TODO: Remove this hack :)
+    static const std::array<u16, 16> canned_read_pipe = {
+        0x000F, 0xBFFF, 0x9E8E, 0x8680, 0xA78E, 0x9430, 0x8400, 0x8540,
+        0x948E, 0x8710, 0x8410, 0xA90E, 0xAA0E, 0xAACE, 0xAC4E, 0xAC58
+    };
+
+    u32 initial_size = read_pipe_count;
+
+    for (unsigned offset = 0; offset < size; offset += sizeof(u16)) {
+        if (read_pipe_count < canned_read_pipe.size()) {
+            Memory::Write16(addr + offset, canned_read_pipe[read_pipe_count]);
+            read_pipe_count++;
+        } else {
+            LOG_ERROR(Service_DSP, "canned read pipe log exceeded!");
+            break;
+        }
+    }
+
+    cmd_buff[1] = 0; // No error
+    cmd_buff[2] = (read_pipe_count - initial_size) * sizeof(u16);
+
+    LOG_WARNING(Service_DSP, "(STUBBED) called size=0x%08X, buffer=0x%08X", size, addr);
+}
+
 const Interface::FunctionInfo FunctionTable[] = {
-    {0x00010040, nullptr,               "RecvData"},
-    {0x00020040, nullptr,               "RecvDataIsReady"},
-    {0x00030080, nullptr,               "SendData"},
-    {0x00040040, nullptr,               "SendDataIsEmpty"},
-    {0x00070040, nullptr,               "WriteReg0x10"},
-    {0x00080000, nullptr,               "GetSemaphore"},
-    {0x00090040, nullptr,               "ClearSemaphore"},
-    {0x000B0000, nullptr,               "CheckSemaphoreRequest"},
-    {0x000C0040, nullptr,               "ConvertProcessAddressFromDspDram"},
-    {0x000D0082, nullptr,               "WriteProcessPipe"},
-    {0x001000C0, nullptr,               "ReadPipeIfPossible"},
-    {0x001100C2, nullptr,               "LoadComponent"},
-    {0x00120000, nullptr,               "UnloadComponent"},
-    {0x00130082, nullptr,               "FlushDataCache"},
-    {0x00140082, nullptr,               "InvalidateDCache"},
-    {0x00150082, nullptr,               "RegisterInterruptEvents"},
-    {0x00160000, nullptr,               "GetSemaphoreEventHandle"},
-    {0x00170040, nullptr,               "SetSemaphoreMask"},
-    {0x00180040, nullptr,               "GetPhysicalAddress"},
-    {0x00190040, nullptr,               "GetVirtualAddress"},
-    {0x001A0042, nullptr,               "SetIirFilterI2S1_cmd1"},
-    {0x001B0042, nullptr,               "SetIirFilterI2S1_cmd2"},
-    {0x001C0082, nullptr,               "SetIirFilterEQ"},
-    {0x001F0000, nullptr,               "GetHeadphoneStatus"},
-    {0x00210000, nullptr,               "GetIsDspOccupied"},
+    {0x00010040, nullptr,                          "RecvData"},
+    {0x00020040, nullptr,                          "RecvDataIsReady"},
+    {0x00030080, nullptr,                          "SendData"},
+    {0x00040040, nullptr,                          "SendDataIsEmpty"},
+    {0x00070040, WriteReg0x10,                     "WriteReg0x10"},
+    {0x00080000, nullptr,                          "GetSemaphore"},
+    {0x00090040, nullptr,                          "ClearSemaphore"},
+    {0x000B0000, nullptr,                          "CheckSemaphoreRequest"},
+    {0x000C0040, ConvertProcessAddressFromDspDram, "ConvertProcessAddressFromDspDram"},
+    {0x000D0082, nullptr,                          "WriteProcessPipe"},
+    {0x001000C0, ReadPipeIfPossible,               "ReadPipeIfPossible"},
+    {0x001100C2, LoadComponent,                    "LoadComponent"},
+    {0x00120000, nullptr,                          "UnloadComponent"},
+    {0x00130082, nullptr,                          "FlushDataCache"},
+    {0x00140082, nullptr,                          "InvalidateDCache"},
+    {0x00150082, RegisterInterruptEvents,          "RegisterInterruptEvents"},
+    {0x00160000, GetSemaphoreEventHandle,          "GetSemaphoreEventHandle"},
+    {0x00170040, nullptr,                          "SetSemaphoreMask"},
+    {0x00180040, nullptr,                          "GetPhysicalAddress"},
+    {0x00190040, nullptr,                          "GetVirtualAddress"},
+    {0x001A0042, nullptr,                          "SetIirFilterI2S1_cmd1"},
+    {0x001B0042, nullptr,                          "SetIirFilterI2S1_cmd2"},
+    {0x001C0082, nullptr,                          "SetIirFilterEQ"},
+    {0x001F0000, nullptr,                          "GetHeadphoneStatus"},
+    {0x00210000, nullptr,                          "GetIsDspOccupied"},
 };
 
 ////////////////////////////////////////////////////////////////////////////////////////////////////
 // Interface class
 
 Interface::Interface() {
-    Register(FunctionTable, ARRAY_SIZE(FunctionTable));
-}
+    semaphore_event = Kernel::CreateEvent(RESETTYPE_ONESHOT, "DSP_DSP::semaphore_event");
+    interrupt_event = 0;
+    read_pipe_count = 0;
 
-Interface::~Interface() {
+    Register(FunctionTable, ARRAY_SIZE(FunctionTable));
 }
 
 } // namespace
diff --git a/src/core/hle/service/dsp_dsp.h b/src/core/hle/service/dsp_dsp.h
index c4ce44245..0b8b64600 100644
--- a/src/core/hle/service/dsp_dsp.h
+++ b/src/core/hle/service/dsp_dsp.h
@@ -1,5 +1,5 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #pragma once
@@ -14,13 +14,9 @@ namespace DSP_DSP {
 class Interface : public Service::Interface {
 public:
     Interface();
-    ~Interface();
-    /**
-     * Gets the string port name used by CTROS for the service
-     * @return Port name of service
-     */
+
     std::string GetPortName() const override {
-        return "dsp:DSP";
+        return "dsp::DSP";
     }
 };
 
diff --git a/src/core/hle/service/err_f.cpp b/src/core/hle/service/err_f.cpp
index 785c351e9..8c900eabc 100644
--- a/src/core/hle/service/err_f.cpp
+++ b/src/core/hle/service/err_f.cpp
@@ -1,5 +1,5 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #include "common/log.h"
@@ -11,17 +11,15 @@
 
 namespace ERR_F {
 
-    const Interface::FunctionInfo FunctionTable[] = {
-        {0x00010800, nullptr,               "ThrowFatalError"}
-    };
-    ////////////////////////////////////////////////////////////////////////////////////////////////////
-    // Interface class
+const Interface::FunctionInfo FunctionTable[] = {
+    {0x00010800, nullptr,               "ThrowFatalError"}
+};
 
-    Interface::Interface() {
-        Register(FunctionTable, ARRAY_SIZE(FunctionTable));
-    }
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Interface class
 
-    Interface::~Interface() {
-    }
+Interface::Interface() {
+    Register(FunctionTable, ARRAY_SIZE(FunctionTable));
+}
 
 } // namespace
diff --git a/src/core/hle/service/err_f.h b/src/core/hle/service/err_f.h
index 6d7141c1b..892d8af9b 100644
--- a/src/core/hle/service/err_f.h
+++ b/src/core/hle/service/err_f.h
@@ -1,5 +1,5 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #pragma once
@@ -11,17 +11,13 @@
 
 namespace ERR_F {
 
-    class Interface : public Service::Interface {
-    public:
-        Interface();
-        ~Interface();
-        /**
-         * Gets the string port name used by CTROS for the service
-         * @return Port name of service
-         */
-        std::string GetPortName() const override {
-            return "err:f";
-        }
-    };
+class Interface : public Service::Interface {
+public:
+    Interface();
+
+    std::string GetPortName() const override {
+        return "err:f";
+    }
+};
 
 } // namespace
diff --git a/src/core/hle/service/frd_u.cpp b/src/core/hle/service/frd_u.cpp
index 58023e536..021186e57 100644
--- a/src/core/hle/service/frd_u.cpp
+++ b/src/core/hle/service/frd_u.cpp
@@ -1,5 +1,5 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #include "common/log.h"
@@ -11,25 +11,23 @@
 
 namespace FRD_U {
 
-    const Interface::FunctionInfo FunctionTable[] = {
-        {0x00050000, nullptr,               "GetFriendKey"},
-        {0x00080000, nullptr,               "GetMyPresence"},
-        {0x00100040, nullptr,               "GetPassword"},
-        {0x00190042, nullptr,               "GetFriendFavoriteGame"},
-        {0x001A00C4, nullptr,               "GetFriendInfo"},
-        {0x001B0080, nullptr,               "IsOnFriendList"},
-        {0x001C0042, nullptr,               "DecodeLocalFriendCode"},
-        {0x001D0002, nullptr,               "SetCurrentlyPlayingText"},
-        {0x00320042, nullptr,               "SetClientSdkVersion"}
-    };
-    ////////////////////////////////////////////////////////////////////////////////////////////////////
-    // Interface class
+const Interface::FunctionInfo FunctionTable[] = {
+    {0x00050000, nullptr,               "GetFriendKey"},
+    {0x00080000, nullptr,               "GetMyPresence"},
+    {0x00100040, nullptr,               "GetPassword"},
+    {0x00190042, nullptr,               "GetFriendFavoriteGame"},
+    {0x001A00C4, nullptr,               "GetFriendInfo"},
+    {0x001B0080, nullptr,               "IsOnFriendList"},
+    {0x001C0042, nullptr,               "DecodeLocalFriendCode"},
+    {0x001D0002, nullptr,               "SetCurrentlyPlayingText"},
+    {0x00320042, nullptr,               "SetClientSdkVersion"}
+};
 
-    Interface::Interface() {
-        Register(FunctionTable, ARRAY_SIZE(FunctionTable));
-    }
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Interface class
 
-    Interface::~Interface() {
-    }
+Interface::Interface() {
+    Register(FunctionTable, ARRAY_SIZE(FunctionTable));
+}
 
 } // namespace
diff --git a/src/core/hle/service/frd_u.h b/src/core/hle/service/frd_u.h
index 4020c6664..ab8897d5b 100644
--- a/src/core/hle/service/frd_u.h
+++ b/src/core/hle/service/frd_u.h
@@ -1,5 +1,5 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #pragma once
@@ -11,17 +11,13 @@
 
 namespace FRD_U {
 
-    class Interface : public Service::Interface {
-    public:
-        Interface();
-        ~Interface();
-        /**
-         * Gets the string port name used by CTROS for the service
-         * @return Port name of service
-         */
-        std::string GetPortName() const override {
-            return "frd:u";
-        }
-    };
+class Interface : public Service::Interface {
+public:
+    Interface();
+
+    std::string GetPortName() const override {
+        return "frd:u";
+    }
+};
 
 } // namespace
diff --git a/src/core/hle/service/fs/archive.cpp b/src/core/hle/service/fs/archive.cpp
new file mode 100644
index 000000000..487bf3aa7
--- /dev/null
+++ b/src/core/hle/service/fs/archive.cpp
@@ -0,0 +1,442 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <memory>
+#include <unordered_map>
+
+#include "common/common_types.h"
+#include "common/file_util.h"
+#include "common/make_unique.h"
+#include "common/math_util.h"
+
+#include "core/file_sys/archive_savedata.h"
+#include "core/file_sys/archive_backend.h"
+#include "core/file_sys/archive_sdmc.h"
+#include "core/file_sys/directory_backend.h"
+#include "core/hle/service/fs/archive.h"
+#include "core/hle/kernel/session.h"
+#include "core/hle/result.h"
+
+// Specializes std::hash for ArchiveIdCode, so that we can use it in std::unordered_map.
+// Workaroung for libstdc++ bug: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60970
+namespace std {
+    template <>
+    struct hash<Service::FS::ArchiveIdCode> {
+        typedef Service::FS::ArchiveIdCode argument_type;
+        typedef std::size_t result_type;
+
+        result_type operator()(const argument_type& id_code) const {
+            typedef std::underlying_type<argument_type>::type Type;
+            return std::hash<Type>()(static_cast<Type>(id_code));
+        }
+    };
+}
+
+namespace Service {
+namespace FS {
+
+// Command to access archive file
+enum class FileCommand : u32 {
+    Dummy1          = 0x000100C6,
+    Control         = 0x040100C4,
+    OpenSubFile     = 0x08010100,
+    Read            = 0x080200C2,
+    Write           = 0x08030102,
+    GetSize         = 0x08040000,
+    SetSize         = 0x08050080,
+    GetAttributes   = 0x08060000,
+    SetAttributes   = 0x08070040,
+    Close           = 0x08080000,
+    Flush           = 0x08090000,
+};
+
+// Command to access directory
+enum class DirectoryCommand : u32 {
+    Dummy1          = 0x000100C6,
+    Control         = 0x040100C4,
+    Read            = 0x08010042,
+    Close           = 0x08020000,
+};
+
+class Archive {
+public:
+    Archive(std::unique_ptr<FileSys::ArchiveBackend>&& backend, ArchiveIdCode id_code)
+            : backend(std::move(backend)), id_code(id_code) {
+    }
+
+    std::string GetName() const { return "Archive: " + backend->GetName(); }
+
+    ArchiveIdCode id_code; ///< Id code of the archive
+    std::unique_ptr<FileSys::ArchiveBackend> backend; ///< Archive backend interface
+};
+
+class File : public Kernel::Session {
+public:
+    File(std::unique_ptr<FileSys::FileBackend>&& backend, const FileSys::Path& path)
+            : backend(std::move(backend)), path(path) {
+    }
+
+    std::string GetName() const override { return "Path: " + path.DebugStr(); }
+
+    FileSys::Path path; ///< Path of the file
+    std::unique_ptr<FileSys::FileBackend> backend; ///< File backend interface
+
+    ResultVal<bool> SyncRequest() override {
+        u32* cmd_buff = Kernel::GetCommandBuffer();
+        FileCommand cmd = static_cast<FileCommand>(cmd_buff[0]);
+        switch (cmd) {
+
+        // Read from file...
+        case FileCommand::Read:
+        {
+            u64 offset = cmd_buff[1] | ((u64) cmd_buff[2]) << 32;
+            u32 length  = cmd_buff[3];
+            u32 address = cmd_buff[5];
+            LOG_TRACE(Service_FS, "Read %s %s: offset=0x%llx length=%d address=0x%x",
+                      GetTypeName().c_str(), GetName().c_str(), offset, length, address);
+            cmd_buff[2] = backend->Read(offset, length, Memory::GetPointer(address));
+            break;
+        }
+
+        // Write to file...
+        case FileCommand::Write:
+        {
+            u64 offset  = cmd_buff[1] | ((u64) cmd_buff[2]) << 32;
+            u32 length  = cmd_buff[3];
+            u32 flush   = cmd_buff[4];
+            u32 address = cmd_buff[6];
+            LOG_TRACE(Service_FS, "Write %s %s: offset=0x%llx length=%d address=0x%x, flush=0x%x",
+                      GetTypeName().c_str(), GetName().c_str(), offset, length, address, flush);
+            cmd_buff[2] = backend->Write(offset, length, flush, Memory::GetPointer(address));
+            break;
+        }
+
+        case FileCommand::GetSize:
+        {
+            LOG_TRACE(Service_FS, "GetSize %s %s", GetTypeName().c_str(), GetName().c_str());
+            u64 size = backend->GetSize();
+            cmd_buff[2] = (u32)size;
+            cmd_buff[3] = size >> 32;
+            break;
+        }
+
+        case FileCommand::SetSize:
+        {
+            u64 size = cmd_buff[1] | ((u64)cmd_buff[2] << 32);
+            LOG_TRACE(Service_FS, "SetSize %s %s size=%llu",
+                    GetTypeName().c_str(), GetName().c_str(), size);
+            backend->SetSize(size);
+            break;
+        }
+
+        case FileCommand::Close:
+        {
+            LOG_TRACE(Service_FS, "Close %s %s", GetTypeName().c_str(), GetName().c_str());
+            backend->Close();
+            break;
+        }
+
+        case FileCommand::Flush:
+        {
+            LOG_TRACE(Service_FS, "Flush");
+            backend->Flush();
+            break;
+        }
+
+        // Unknown command...
+        default:
+            LOG_ERROR(Service_FS, "Unknown command=0x%08X!", cmd);
+            ResultCode error = UnimplementedFunction(ErrorModule::FS);
+            cmd_buff[1] = error.raw; // TODO(Link Mauve): use the correct error code for that.
+            return error;
+        }
+        cmd_buff[1] = 0; // No error
+        return MakeResult<bool>(false);
+    }
+};
+
+class Directory : public Kernel::Session {
+public:
+    Directory(std::unique_ptr<FileSys::DirectoryBackend>&& backend, const FileSys::Path& path)
+            : backend(std::move(backend)), path(path) {
+    }
+
+    std::string GetName() const override { return "Directory: " + path.DebugStr(); }
+
+    FileSys::Path path; ///< Path of the directory
+    std::unique_ptr<FileSys::DirectoryBackend> backend; ///< File backend interface
+
+    ResultVal<bool> SyncRequest() override {
+        u32* cmd_buff = Kernel::GetCommandBuffer();
+        DirectoryCommand cmd = static_cast<DirectoryCommand>(cmd_buff[0]);
+        switch (cmd) {
+
+        // Read from directory...
+        case DirectoryCommand::Read:
+        {
+            u32 count = cmd_buff[1];
+            u32 address = cmd_buff[3];
+            auto entries = reinterpret_cast<FileSys::Entry*>(Memory::GetPointer(address));
+            LOG_TRACE(Service_FS, "Read %s %s: count=%d",
+                    GetTypeName().c_str(), GetName().c_str(), count);
+
+            // Number of entries actually read
+            cmd_buff[2] = backend->Read(count, entries);
+            break;
+        }
+
+        case DirectoryCommand::Close:
+        {
+            LOG_TRACE(Service_FS, "Close %s %s", GetTypeName().c_str(), GetName().c_str());
+            backend->Close();
+            break;
+        }
+
+        // Unknown command...
+        default:
+            LOG_ERROR(Service_FS, "Unknown command=0x%08X!", cmd);
+            ResultCode error = UnimplementedFunction(ErrorModule::FS);
+            cmd_buff[1] = error.raw; // TODO(Link Mauve): use the correct error code for that.
+            return MakeResult<bool>(false);
+        }
+        cmd_buff[1] = 0; // No error
+        return MakeResult<bool>(false);
+    }
+};
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+
+/**
+ * Map of registered archives, identified by id code. Once an archive is registered here, it is
+ * never removed until the FS service is shut down.
+ */
+static std::unordered_map<ArchiveIdCode, std::unique_ptr<Archive>> id_code_map;
+
+/**
+ * Map of active archive handles. Values are pointers to the archives in `idcode_map`.
+ */
+static std::unordered_map<ArchiveHandle, Archive*> handle_map;
+static ArchiveHandle next_handle;
+
+static Archive* GetArchive(ArchiveHandle handle) {
+    auto itr = handle_map.find(handle);
+    return (itr == handle_map.end()) ? nullptr : itr->second;
+}
+
+ResultVal<ArchiveHandle> OpenArchive(ArchiveIdCode id_code) {
+    LOG_TRACE(Service_FS, "Opening archive with id code 0x%08X", id_code);
+
+    auto itr = id_code_map.find(id_code);
+    if (itr == id_code_map.end()) {
+        if (id_code == ArchiveIdCode::SaveData) {
+            // When a SaveData archive is created for the first time, it is not yet formatted
+            // and the save file/directory structure expected by the game has not yet been initialized. 
+            // Returning the NotFormatted error code will signal the game to provision the SaveData archive 
+            // with the files and folders that it expects. 
+            // The FormatSaveData service call will create the SaveData archive when it is called.
+            return ResultCode(ErrorDescription::FS_NotFormatted, ErrorModule::FS,
+                              ErrorSummary::InvalidState, ErrorLevel::Status);
+        }
+        // TODO: Verify error against hardware
+        return ResultCode(ErrorDescription::NotFound, ErrorModule::FS,
+                          ErrorSummary::NotFound, ErrorLevel::Permanent);
+    }
+
+    // This should never even happen in the first place with 64-bit handles, 
+    while (handle_map.count(next_handle) != 0) {
+        ++next_handle;
+    }
+    handle_map.emplace(next_handle, itr->second.get());
+    return MakeResult<ArchiveHandle>(next_handle++);
+}
+
+ResultCode CloseArchive(ArchiveHandle handle) {
+    if (handle_map.erase(handle) == 0)
+        return InvalidHandle(ErrorModule::FS);
+    else
+        return RESULT_SUCCESS;
+}
+
+// TODO(yuriks): This might be what the fs:REG service is for. See the Register/Unregister calls in
+// http://3dbrew.org/wiki/Filesystem_services#ProgramRegistry_service_.22fs:REG.22
+ResultCode CreateArchive(std::unique_ptr<FileSys::ArchiveBackend>&& backend, ArchiveIdCode id_code) {
+    auto result = id_code_map.emplace(id_code, Common::make_unique<Archive>(std::move(backend), id_code));
+
+    bool inserted = result.second;
+    _dbg_assert_msg_(Service_FS, inserted, "Tried to register more than one archive with same id code");
+
+    auto& archive = result.first->second;
+    LOG_DEBUG(Service_FS, "Registered archive %s with id code 0x%08X", archive->GetName().c_str(), id_code);
+    return RESULT_SUCCESS;
+}
+
+ResultVal<Handle> OpenFileFromArchive(ArchiveHandle archive_handle, const FileSys::Path& path, const FileSys::Mode mode) {
+    Archive* archive = GetArchive(archive_handle);
+    if (archive == nullptr)
+        return InvalidHandle(ErrorModule::FS);
+
+    std::unique_ptr<FileSys::FileBackend> backend = archive->backend->OpenFile(path, mode);
+    if (backend == nullptr) {
+        return ResultCode(ErrorDescription::FS_NotFound, ErrorModule::FS,
+                          ErrorSummary::NotFound, ErrorLevel::Status);
+    }
+
+    auto file = Common::make_unique<File>(std::move(backend), path);
+    // TOOD(yuriks): Fix error reporting
+    Handle handle = Kernel::g_handle_table.Create(file.release()).ValueOr(INVALID_HANDLE);
+    return MakeResult<Handle>(handle);
+}
+
+ResultCode DeleteFileFromArchive(ArchiveHandle archive_handle, const FileSys::Path& path) {
+    Archive* archive = GetArchive(archive_handle);
+    if (archive == nullptr)
+        return InvalidHandle(ErrorModule::FS);
+
+    if (archive->backend->DeleteFile(path))
+        return RESULT_SUCCESS;
+    return ResultCode(ErrorDescription::NoData, ErrorModule::FS, // TODO: verify description
+                      ErrorSummary::Canceled, ErrorLevel::Status);
+}
+
+ResultCode RenameFileBetweenArchives(ArchiveHandle src_archive_handle, const FileSys::Path& src_path,
+                                     ArchiveHandle dest_archive_handle, const FileSys::Path& dest_path) {
+    Archive* src_archive = GetArchive(src_archive_handle);
+    Archive* dest_archive = GetArchive(dest_archive_handle);
+    if (src_archive == nullptr || dest_archive == nullptr)
+        return InvalidHandle(ErrorModule::FS);
+
+    if (src_archive == dest_archive) {
+        if (src_archive->backend->RenameFile(src_path, dest_path))
+            return RESULT_SUCCESS;
+    } else {
+        // TODO: Implement renaming across archives
+        return UnimplementedFunction(ErrorModule::FS);
+    }
+
+    // TODO(yuriks): This code probably isn't right, it'll return a Status even if the file didn't
+    // exist or similar. Verify.
+    return ResultCode(ErrorDescription::NoData, ErrorModule::FS, // TODO: verify description
+                      ErrorSummary::NothingHappened, ErrorLevel::Status);
+}
+
+ResultCode DeleteDirectoryFromArchive(ArchiveHandle archive_handle, const FileSys::Path& path) {
+    Archive* archive = GetArchive(archive_handle);
+    if (archive == nullptr)
+        return InvalidHandle(ErrorModule::FS);
+
+    if (archive->backend->DeleteDirectory(path))
+        return RESULT_SUCCESS;
+    return ResultCode(ErrorDescription::NoData, ErrorModule::FS, // TODO: verify description
+                      ErrorSummary::Canceled, ErrorLevel::Status);
+}
+
+ResultCode CreateFileInArchive(Handle archive_handle, const FileSys::Path& path, u32 file_size) {
+    Archive* archive = GetArchive(archive_handle);
+    if (archive == nullptr)
+        return InvalidHandle(ErrorModule::FS);
+
+    return archive->backend->CreateFile(path, file_size);
+}
+
+ResultCode CreateDirectoryFromArchive(ArchiveHandle archive_handle, const FileSys::Path& path) {
+    Archive* archive = GetArchive(archive_handle);
+    if (archive == nullptr)
+        return InvalidHandle(ErrorModule::FS);
+
+    if (archive->backend->CreateDirectory(path))
+        return RESULT_SUCCESS;
+    return ResultCode(ErrorDescription::NoData, ErrorModule::FS, // TODO: verify description
+                      ErrorSummary::Canceled, ErrorLevel::Status);
+}
+
+ResultCode RenameDirectoryBetweenArchives(ArchiveHandle src_archive_handle, const FileSys::Path& src_path,
+                                          ArchiveHandle dest_archive_handle, const FileSys::Path& dest_path) {
+    Archive* src_archive = GetArchive(src_archive_handle);
+    Archive* dest_archive = GetArchive(dest_archive_handle);
+    if (src_archive == nullptr || dest_archive == nullptr)
+        return InvalidHandle(ErrorModule::FS);
+
+    if (src_archive == dest_archive) {
+        if (src_archive->backend->RenameDirectory(src_path, dest_path))
+            return RESULT_SUCCESS;
+    } else {
+        // TODO: Implement renaming across archives
+        return UnimplementedFunction(ErrorModule::FS);
+    }
+
+    // TODO(yuriks): This code probably isn't right, it'll return a Status even if the file didn't
+    // exist or similar. Verify.
+    return ResultCode(ErrorDescription::NoData, ErrorModule::FS, // TODO: verify description
+                      ErrorSummary::NothingHappened, ErrorLevel::Status);
+}
+
+/**
+ * Open a Directory from an Archive
+ * @param archive_handle Handle to an open Archive object
+ * @param path Path to the Directory inside of the Archive
+ * @return Opened Directory object
+ */
+ResultVal<Handle> OpenDirectoryFromArchive(ArchiveHandle archive_handle, const FileSys::Path& path) {
+    Archive* archive = GetArchive(archive_handle);
+    if (archive == nullptr)
+        return InvalidHandle(ErrorModule::FS);
+
+    std::unique_ptr<FileSys::DirectoryBackend> backend = archive->backend->OpenDirectory(path);
+    if (backend == nullptr) {
+        return ResultCode(ErrorDescription::NotFound, ErrorModule::FS,
+                          ErrorSummary::NotFound, ErrorLevel::Permanent);
+    }
+
+    auto directory = Common::make_unique<Directory>(std::move(backend), path);
+    // TOOD(yuriks): Fix error reporting
+    Handle handle = Kernel::g_handle_table.Create(directory.release()).ValueOr(INVALID_HANDLE);
+    return MakeResult<Handle>(handle);
+}
+
+ResultCode FormatSaveData() {
+    // TODO(Subv): Actually wipe the savedata folder after creating or opening it
+
+    // Do not create the archive again if it already exists
+    if (id_code_map.find(ArchiveIdCode::SaveData) != id_code_map.end())
+        return UnimplementedFunction(ErrorModule::FS); // TODO(Subv): Find the correct error code
+
+    // Create the SaveData archive
+    std::string savedata_directory = FileUtil::GetUserPath(D_SAVEDATA_IDX);
+    auto savedata_archive = Common::make_unique<FileSys::Archive_SaveData>(savedata_directory,
+        Kernel::g_program_id);
+
+    if (savedata_archive->Initialize()) {
+        CreateArchive(std::move(savedata_archive), ArchiveIdCode::SaveData);
+        return RESULT_SUCCESS;
+    } else {
+        LOG_ERROR(Service_FS, "Can't instantiate SaveData archive with path %s",
+            savedata_archive->GetMountPoint().c_str());
+        return UnimplementedFunction(ErrorModule::FS); // TODO(Subv): Find the proper error code
+    }
+}
+
+/// Initialize archives
+void ArchiveInit() {
+    next_handle = 1;
+
+    // TODO(Link Mauve): Add the other archive types (see here for the known types:
+    // http://3dbrew.org/wiki/FS:OpenArchive#Archive_idcodes).  Currently the only half-finished
+    // archive type is SDMC, so it is the only one getting exposed.
+
+    std::string sdmc_directory = FileUtil::GetUserPath(D_SDMC_IDX);
+    auto sdmc_archive = Common::make_unique<FileSys::Archive_SDMC>(sdmc_directory);
+    if (sdmc_archive->Initialize())
+        CreateArchive(std::move(sdmc_archive), ArchiveIdCode::SDMC);
+    else
+        LOG_ERROR(Service_FS, "Can't instantiate SDMC archive with path %s", sdmc_directory.c_str());
+}
+
+/// Shutdown archives
+void ArchiveShutdown() {
+    handle_map.clear();
+    id_code_map.clear();
+}
+
+} // namespace FS
+} // namespace Service
diff --git a/src/core/hle/service/fs/archive.h b/src/core/hle/service/fs/archive.h
new file mode 100644
index 000000000..b39bc41b6
--- /dev/null
+++ b/src/core/hle/service/fs/archive.h
@@ -0,0 +1,134 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "common/common_types.h"
+
+#include "core/file_sys/archive_backend.h"
+#include "core/hle/kernel/kernel.h"
+#include "core/hle/result.h"
+
+namespace Service {
+namespace FS {
+
+/// Supported archive types
+enum class ArchiveIdCode : u32 {
+    RomFS               = 0x00000003,
+    SaveData            = 0x00000004,
+    ExtSaveData         = 0x00000006,
+    SharedExtSaveData   = 0x00000007,
+    SystemSaveData      = 0x00000008,
+    SDMC                = 0x00000009,
+    SDMCWriteOnly       = 0x0000000A,
+};
+
+typedef u64 ArchiveHandle;
+
+/**
+ * Opens an archive
+ * @param id_code IdCode of the archive to open
+ * @return Handle to the opened archive
+ */
+ResultVal<ArchiveHandle> OpenArchive(ArchiveIdCode id_code);
+
+/**
+ * Closes an archive
+ * @param id_code IdCode of the archive to open
+ */
+ResultCode CloseArchive(ArchiveHandle handle);
+
+/**
+ * Creates an Archive
+ * @param backend File system backend interface to the archive
+ * @param id_code Id code used to access this type of archive
+ */
+ResultCode CreateArchive(std::unique_ptr<FileSys::ArchiveBackend>&& backend, ArchiveIdCode id_code);
+
+/**
+ * Open a File from an Archive
+ * @param archive_handle Handle to an open Archive object
+ * @param path Path to the File inside of the Archive
+ * @param mode Mode under which to open the File
+ * @return Handle to the opened File object
+ */
+ResultVal<Handle> OpenFileFromArchive(ArchiveHandle archive_handle, const FileSys::Path& path, const FileSys::Mode mode);
+
+/**
+ * Delete a File from an Archive
+ * @param archive_handle Handle to an open Archive object
+ * @param path Path to the File inside of the Archive
+ * @return Whether deletion succeeded
+ */
+ResultCode DeleteFileFromArchive(ArchiveHandle archive_handle, const FileSys::Path& path);
+
+/**
+ * Rename a File between two Archives
+ * @param src_archive_handle Handle to the source Archive object
+ * @param src_path Path to the File inside of the source Archive
+ * @param dest_archive_handle Handle to the destination Archive object
+ * @param dest_path Path to the File inside of the destination Archive
+ * @return Whether rename succeeded
+ */
+ResultCode RenameFileBetweenArchives(ArchiveHandle src_archive_handle, const FileSys::Path& src_path,
+                                     ArchiveHandle dest_archive_handle, const FileSys::Path& dest_path);
+
+/**
+ * Delete a Directory from an Archive
+ * @param archive_handle Handle to an open Archive object
+ * @param path Path to the Directory inside of the Archive
+ * @return Whether deletion succeeded
+ */
+ResultCode DeleteDirectoryFromArchive(ArchiveHandle archive_handle, const FileSys::Path& path);
+
+/**
+ * Create a File in an Archive
+ * @param archive_handle Handle to an open Archive object
+ * @param path Path to the File inside of the Archive
+ * @param file_size The size of the new file, filled with zeroes
+ * @return File creation result code
+ */
+ResultCode CreateFileInArchive(Handle archive_handle, const FileSys::Path& path, u32 file_size);
+
+/**
+ * Create a Directory from an Archive
+ * @param archive_handle Handle to an open Archive object
+ * @param path Path to the Directory inside of the Archive
+ * @return Whether creation of directory succeeded
+ */
+ResultCode CreateDirectoryFromArchive(ArchiveHandle archive_handle, const FileSys::Path& path);
+
+/**
+ * Rename a Directory between two Archives
+ * @param src_archive_handle Handle to the source Archive object
+ * @param src_path Path to the Directory inside of the source Archive
+ * @param dest_archive_handle Handle to the destination Archive object
+ * @param dest_path Path to the Directory inside of the destination Archive
+ * @return Whether rename succeeded
+ */
+ResultCode RenameDirectoryBetweenArchives(ArchiveHandle src_archive_handle, const FileSys::Path& src_path,
+                                          ArchiveHandle dest_archive_handle, const FileSys::Path& dest_path);
+
+/**
+ * Open a Directory from an Archive
+ * @param archive_handle Handle to an open Archive object
+ * @param path Path to the Directory inside of the Archive
+ * @return Handle to the opened File object
+ */
+ResultVal<Handle> OpenDirectoryFromArchive(ArchiveHandle archive_handle, const FileSys::Path& path);
+
+/**
+ * Creates a blank SaveData archive.
+ * @return ResultCode 0 on success or the corresponding code on error
+ */
+ResultCode FormatSaveData();
+
+/// Initialize archives
+void ArchiveInit();
+
+/// Shutdown archives
+void ArchiveShutdown();
+
+} // namespace FS
+} // namespace Service
diff --git a/src/core/hle/service/fs/fs_user.cpp b/src/core/hle/service/fs/fs_user.cpp
new file mode 100644
index 000000000..b1a465274
--- /dev/null
+++ b/src/core/hle/service/fs/fs_user.cpp
@@ -0,0 +1,601 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/common.h"
+#include "common/file_util.h"
+#include "common/scope_exit.h"
+#include "common/string_util.h"
+#include "core/hle/result.h"
+#include "core/hle/service/fs/archive.h"
+#include "core/hle/service/fs/fs_user.h"
+#include "core/settings.h"
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace FS_User
+
+namespace Service {
+namespace FS {
+
+static ArchiveHandle MakeArchiveHandle(u32 low_word, u32 high_word) {
+    return (u64)low_word | ((u64)high_word << 32);
+}
+
+static void Initialize(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+
+    // TODO(Link Mauve): check the behavior when cmd_buff[1] isn't 32, as per
+    // http://3dbrew.org/wiki/FS:Initialize#Request
+    cmd_buff[1] = RESULT_SUCCESS.raw;
+
+    LOG_DEBUG(Service_FS, "called");
+}
+
+/**
+ * FS_User::OpenFile service function
+ *  Inputs:
+ *      1 : Transaction
+ *      2 : Archive handle lower word
+ *      3 : Archive handle upper word
+ *      4 : Low path type
+ *      5 : Low path size
+ *      6 : Open flags
+ *      7 : Attributes
+ *      8 : (LowPathSize << 14) | 2
+ *      9 : Low path data pointer
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ *      3 : File handle
+ */
+static void OpenFile(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+
+    ArchiveHandle archive_handle = MakeArchiveHandle(cmd_buff[2], cmd_buff[3]);
+    auto filename_type    = static_cast<FileSys::LowPathType>(cmd_buff[4]);
+    u32 filename_size     = cmd_buff[5];
+    FileSys::Mode mode; mode.hex = cmd_buff[6];
+    u32 attributes        = cmd_buff[7]; // TODO(Link Mauve): do something with those attributes.
+    u32 filename_ptr      = cmd_buff[9];
+    FileSys::Path file_path(filename_type, filename_size, filename_ptr);
+
+    LOG_DEBUG(Service_FS, "path=%s, mode=%d attrs=%u", file_path.DebugStr().c_str(), mode.hex, attributes);
+
+    ResultVal<Handle> handle = OpenFileFromArchive(archive_handle, file_path, mode);
+    cmd_buff[1] = handle.Code().raw;
+    if (handle.Succeeded()) {
+        cmd_buff[3] = *handle;
+    } else {
+        cmd_buff[3] = 0;
+        LOG_ERROR(Service_FS, "failed to get a handle for file %s", file_path.DebugStr().c_str());
+    }
+}
+
+/**
+ * FS_User::OpenFileDirectly service function
+ *  Inputs:
+ *      1 : Transaction
+ *      2 : Archive ID
+ *      3 : Archive low path type
+ *      4 : Archive low path size
+ *      5 : File low path type
+ *      6 : File low path size
+ *      7 : Flags
+ *      8 : Attributes
+ *      9 : (ArchiveLowPathSize << 14) | 0x802
+ *      10 : Archive low path
+ *      11 : (FileLowPathSize << 14) | 2
+ *      12 : File low path
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ *      3 : File handle
+ */
+static void OpenFileDirectly(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+
+    auto archive_id       = static_cast<FS::ArchiveIdCode>(cmd_buff[2]);
+    auto archivename_type = static_cast<FileSys::LowPathType>(cmd_buff[3]);
+    u32 archivename_size  = cmd_buff[4];
+    auto filename_type    = static_cast<FileSys::LowPathType>(cmd_buff[5]);
+    u32 filename_size     = cmd_buff[6];
+    FileSys::Mode mode; mode.hex = cmd_buff[7];
+    u32 attributes        = cmd_buff[8]; // TODO(Link Mauve): do something with those attributes.
+    u32 archivename_ptr   = cmd_buff[10];
+    u32 filename_ptr      = cmd_buff[12];
+    FileSys::Path archive_path(archivename_type, archivename_size, archivename_ptr);
+    FileSys::Path file_path(filename_type, filename_size, filename_ptr);
+
+    LOG_DEBUG(Service_FS, "archive_path=%s file_path=%s, mode=%u attributes=%d",
+              archive_path.DebugStr().c_str(), file_path.DebugStr().c_str(), mode.hex, attributes);
+
+    if (archive_path.GetType() != FileSys::Empty) {
+        LOG_ERROR(Service_FS, "archive LowPath type other than empty is currently unsupported");
+        cmd_buff[1] = UnimplementedFunction(ErrorModule::FS).raw;
+        cmd_buff[3] = 0;
+        return;
+    }
+
+    ResultVal<ArchiveHandle> archive_handle = OpenArchive(archive_id);
+    if (archive_handle.Failed()) {
+        LOG_ERROR(Service_FS, "failed to get a handle for archive");
+        cmd_buff[1] = archive_handle.Code().raw;
+        cmd_buff[3] = 0;
+        return;
+    }
+    SCOPE_EXIT({ CloseArchive(*archive_handle); });
+
+    ResultVal<Handle> handle = OpenFileFromArchive(*archive_handle, file_path, mode);
+    cmd_buff[1] = handle.Code().raw;
+    if (handle.Succeeded()) {
+        cmd_buff[3] = *handle;
+    } else {
+        cmd_buff[3] = 0;
+        LOG_ERROR(Service_FS, "failed to get a handle for file %s", file_path.DebugStr().c_str());
+    }
+}
+
+/*
+ * FS_User::DeleteFile service function
+ *  Inputs:
+ *      2 : Archive handle lower word
+ *      3 : Archive handle upper word
+ *      4 : File path string type
+ *      5 : File path string size
+ *      7 : File path string data
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ */
+static void DeleteFile(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+
+    ArchiveHandle archive_handle = MakeArchiveHandle(cmd_buff[2], cmd_buff[3]);
+    auto filename_type    = static_cast<FileSys::LowPathType>(cmd_buff[4]);
+    u32 filename_size     = cmd_buff[5];
+    u32 filename_ptr      = cmd_buff[7];
+
+    FileSys::Path file_path(filename_type, filename_size, filename_ptr);
+
+    LOG_DEBUG(Service_FS, "type=%d size=%d data=%s",
+              filename_type, filename_size, file_path.DebugStr().c_str());
+
+    cmd_buff[1] = DeleteFileFromArchive(archive_handle, file_path).raw;
+}
+
+/*
+ * FS_User::RenameFile service function
+ *  Inputs:
+ *      2 : Source archive handle lower word
+ *      3 : Source archive handle upper word
+ *      4 : Source file path type
+ *      5 : Source file path size
+ *      6 : Dest archive handle lower word
+ *      7 : Dest archive handle upper word
+ *      8 : Dest file path type
+ *      9 : Dest file path size
+ *      11: Source file path string data
+ *      13: Dest file path string
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ */
+static void RenameFile(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+
+    ArchiveHandle src_archive_handle = MakeArchiveHandle(cmd_buff[2], cmd_buff[3]);
+    auto src_filename_type     = static_cast<FileSys::LowPathType>(cmd_buff[4]);
+    u32 src_filename_size      = cmd_buff[5];
+    ArchiveHandle dest_archive_handle = MakeArchiveHandle(cmd_buff[6], cmd_buff[7]);;
+    auto dest_filename_type    = static_cast<FileSys::LowPathType>(cmd_buff[8]);
+    u32 dest_filename_size     = cmd_buff[9];
+    u32 src_filename_ptr       = cmd_buff[11];
+    u32 dest_filename_ptr      = cmd_buff[13];
+
+    FileSys::Path src_file_path(src_filename_type, src_filename_size, src_filename_ptr);
+    FileSys::Path dest_file_path(dest_filename_type, dest_filename_size, dest_filename_ptr);
+
+    LOG_DEBUG(Service_FS, "src_type=%d src_size=%d src_data=%s dest_type=%d dest_size=%d dest_data=%s",
+              src_filename_type, src_filename_size, src_file_path.DebugStr().c_str(),
+              dest_filename_type, dest_filename_size, dest_file_path.DebugStr().c_str());
+
+    cmd_buff[1] = RenameFileBetweenArchives(src_archive_handle, src_file_path, dest_archive_handle, dest_file_path).raw;
+}
+
+/*
+ * FS_User::DeleteDirectory service function
+ *  Inputs:
+ *      2 : Archive handle lower word
+ *      3 : Archive handle upper word
+ *      4 : Directory path string type
+ *      5 : Directory path string size
+ *      7 : Directory path string data
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ */
+static void DeleteDirectory(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+
+    ArchiveHandle archive_handle = MakeArchiveHandle(cmd_buff[2], cmd_buff[3]);
+    auto dirname_type     = static_cast<FileSys::LowPathType>(cmd_buff[4]);
+    u32 dirname_size      = cmd_buff[5];
+    u32 dirname_ptr       = cmd_buff[7];
+
+    FileSys::Path dir_path(dirname_type, dirname_size, dirname_ptr);
+
+    LOG_DEBUG(Service_FS, "type=%d size=%d data=%s",
+              dirname_type, dirname_size, dir_path.DebugStr().c_str());
+    
+    cmd_buff[1] = DeleteDirectoryFromArchive(archive_handle, dir_path).raw;
+}
+
+/*
+ * FS_User::CreateFile service function
+ *  Inputs:
+ *      0 : Command header 0x08080202
+ *      2 : Archive handle lower word
+ *      3 : Archive handle upper word
+ *      4 : File path string type
+ *      5 : File path string size
+ *      7 : File size (filled with zeroes)
+ *      10: File path string data
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ */
+static void CreateFile(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+
+    ArchiveHandle archive_handle = MakeArchiveHandle(cmd_buff[2], cmd_buff[3]);
+    auto filename_type    = static_cast<FileSys::LowPathType>(cmd_buff[4]);
+    u32 filename_size     = cmd_buff[5];
+    u32 file_size         = cmd_buff[7];
+    u32 filename_ptr      = cmd_buff[10];
+
+    FileSys::Path file_path(filename_type, filename_size, filename_ptr);
+
+    LOG_DEBUG(Service_FS, "type=%d size=%d data=%s", filename_type, filename_size, file_path.DebugStr().c_str());
+
+    cmd_buff[1] = CreateFileInArchive(archive_handle, file_path, file_size).raw;
+}
+
+/*
+ * FS_User::CreateDirectory service function
+ *  Inputs:
+ *      2 : Archive handle lower word
+ *      3 : Archive handle upper word
+ *      4 : Directory path string type
+ *      5 : Directory path string size
+ *      8 : Directory path string data
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ */
+static void CreateDirectory(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+
+    ArchiveHandle archive_handle = MakeArchiveHandle(cmd_buff[2], cmd_buff[3]);
+    auto dirname_type = static_cast<FileSys::LowPathType>(cmd_buff[4]);
+    u32 dirname_size = cmd_buff[5];
+    u32 dirname_ptr = cmd_buff[8];
+
+    FileSys::Path dir_path(dirname_type, dirname_size, dirname_ptr);
+
+    LOG_DEBUG(Service_FS, "type=%d size=%d data=%s", dirname_type, dirname_size, dir_path.DebugStr().c_str());
+
+    cmd_buff[1] = CreateDirectoryFromArchive(archive_handle, dir_path).raw;
+}
+
+/*
+ * FS_User::RenameDirectory service function
+ *  Inputs:
+ *      2 : Source archive handle lower word
+ *      3 : Source archive handle upper word
+ *      4 : Source dir path type
+ *      5 : Source dir path size
+ *      6 : Dest archive handle lower word
+ *      7 : Dest archive handle upper word
+ *      8 : Dest dir path type
+ *      9 : Dest dir path size
+ *      11: Source dir path string data
+ *      13: Dest dir path string
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ */
+static void RenameDirectory(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+
+    ArchiveHandle src_archive_handle = MakeArchiveHandle(cmd_buff[2], cmd_buff[3]);
+    auto src_dirname_type      = static_cast<FileSys::LowPathType>(cmd_buff[4]);
+    u32 src_dirname_size       = cmd_buff[5];
+    ArchiveHandle dest_archive_handle = MakeArchiveHandle(cmd_buff[6], cmd_buff[7]);
+    auto dest_dirname_type     = static_cast<FileSys::LowPathType>(cmd_buff[8]);
+    u32 dest_dirname_size      = cmd_buff[9];
+    u32 src_dirname_ptr        = cmd_buff[11];
+    u32 dest_dirname_ptr       = cmd_buff[13];
+
+    FileSys::Path src_dir_path(src_dirname_type, src_dirname_size, src_dirname_ptr);
+    FileSys::Path dest_dir_path(dest_dirname_type, dest_dirname_size, dest_dirname_ptr);
+
+    LOG_DEBUG(Service_FS, "src_type=%d src_size=%d src_data=%s dest_type=%d dest_size=%d dest_data=%s",
+              src_dirname_type, src_dirname_size, src_dir_path.DebugStr().c_str(),
+              dest_dirname_type, dest_dirname_size, dest_dir_path.DebugStr().c_str());
+
+    cmd_buff[1] = RenameDirectoryBetweenArchives(src_archive_handle, src_dir_path, dest_archive_handle, dest_dir_path).raw;
+}
+
+/**
+ * FS_User::OpenDirectory service function
+ *  Inputs:
+ *      1 : Archive handle low word
+ *      2 : Archive handle high word
+ *      3 : Low path type
+ *      4 : Low path size
+ *      7 : (LowPathSize << 14) | 2
+ *      8 : Low path data pointer
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ *      3 : Directory handle
+ */
+static void OpenDirectory(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+
+    ArchiveHandle archive_handle = MakeArchiveHandle(cmd_buff[1], cmd_buff[2]);
+    auto dirname_type = static_cast<FileSys::LowPathType>(cmd_buff[3]);
+    u32 dirname_size = cmd_buff[4];
+    u32 dirname_ptr = cmd_buff[6];
+
+    FileSys::Path dir_path(dirname_type, dirname_size, dirname_ptr);
+
+    LOG_DEBUG(Service_FS, "type=%d size=%d data=%s", dirname_type, dirname_size, dir_path.DebugStr().c_str());
+
+    ResultVal<Handle> handle = OpenDirectoryFromArchive(archive_handle, dir_path);
+    cmd_buff[1] = handle.Code().raw;
+    if (handle.Succeeded()) {
+        cmd_buff[3] = *handle;
+    } else {
+        LOG_ERROR(Service_FS, "failed to get a handle for directory");
+    }
+}
+
+/**
+ * FS_User::OpenArchive service function
+ *  Inputs:
+ *      1 : Archive ID
+ *      2 : Archive low path type
+ *      3 : Archive low path size
+ *      4 : (LowPathSize << 14) | 2
+ *      5 : Archive low path
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ *      2 : Archive handle lower word (unused)
+ *      3 : Archive handle upper word (same as file handle)
+ */
+static void OpenArchive(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+
+    auto archive_id       = static_cast<FS::ArchiveIdCode>(cmd_buff[1]);
+    auto archivename_type = static_cast<FileSys::LowPathType>(cmd_buff[2]);
+    u32 archivename_size  = cmd_buff[3];
+    u32 archivename_ptr   = cmd_buff[5];
+    FileSys::Path archive_path(archivename_type, archivename_size, archivename_ptr);
+
+    LOG_DEBUG(Service_FS, "archive_path=%s", archive_path.DebugStr().c_str());
+
+    if (archive_path.GetType() != FileSys::Empty) {
+        LOG_ERROR(Service_FS, "archive LowPath type other than empty is currently unsupported");
+        cmd_buff[1] = UnimplementedFunction(ErrorModule::FS).raw;
+        return;
+    }
+
+    ResultVal<ArchiveHandle> handle = OpenArchive(archive_id);
+    cmd_buff[1] = handle.Code().raw;
+    if (handle.Succeeded()) {
+        cmd_buff[2] = *handle & 0xFFFFFFFF;
+        cmd_buff[3] = (*handle >> 32) & 0xFFFFFFFF;
+    } else {
+        cmd_buff[2] = cmd_buff[3] = 0;
+        LOG_ERROR(Service_FS, "failed to get a handle for archive");
+    }
+}
+
+/**
+ * FS_User::CloseArchive service function
+ *  Inputs:
+ *      0 : 0x080E0080
+ *      1 : Archive handle low word
+ *      2 : Archive handle high word
+ *  Outputs:
+ *      0 : ??? TODO(yuriks): Verify return header
+ *      1 : Result of function, 0 on success, otherwise error code
+ */
+static void CloseArchive(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+
+    ArchiveHandle archive_handle = MakeArchiveHandle(cmd_buff[1], cmd_buff[2]);
+    cmd_buff[1] = CloseArchive(archive_handle).raw;
+}
+
+/*
+* FS_User::IsSdmcDetected service function
+*  Outputs:
+*      1 : Result of function, 0 on success, otherwise error code
+*      2 : Whether the Sdmc could be detected
+*/
+static void IsSdmcDetected(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+
+    cmd_buff[1] = 0;
+    cmd_buff[2] = Settings::values.use_virtual_sd ? 1 : 0;
+
+    LOG_DEBUG(Service_FS, "called");
+}
+
+/**
+ * FS_User::IsSdmcWriteable service function
+ *  Outputs:
+ *      0 : Command header 0x08180000
+ *      1 : Result of function, 0 on success, otherwise error code
+ *      2 : Whether the Sdmc is currently writeable
+ */
+static void IsSdmcWriteable(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+
+    cmd_buff[1] = RESULT_SUCCESS.raw;
+    // If the SD isn't enabled, it can't be writeable...else, stubbed true
+    cmd_buff[2] = Settings::values.use_virtual_sd ? 1 : 0;
+    
+    LOG_DEBUG(Service_FS, " (STUBBED)");
+}
+
+/**
+ * FS_User::FormatSaveData service function, 
+ * formats the SaveData specified by the input path.
+ *  Inputs:
+ *      0  : 0x084C0242
+ *      1  : Archive ID
+ *      2  : Archive low path type
+ *      3  : Archive low path size
+ *      10 : (LowPathSize << 14) | 2
+ *      11 : Archive low path
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ */
+static void FormatSaveData(Service::Interface* self) {
+    // TODO(Subv): Find out what the other inputs and outputs of this function are
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+    LOG_DEBUG(Service_FS, "(STUBBED)");
+
+    auto archive_id = static_cast<FS::ArchiveIdCode>(cmd_buff[1]);
+    auto archivename_type = static_cast<FileSys::LowPathType>(cmd_buff[2]);
+    u32 archivename_size = cmd_buff[3];
+    u32 archivename_ptr = cmd_buff[11];
+    FileSys::Path archive_path(archivename_type, archivename_size, archivename_ptr);
+
+    LOG_DEBUG(Service_FS, "archive_path=%s", archive_path.DebugStr().c_str());
+
+    if (archive_id != FS::ArchiveIdCode::SaveData) {
+        // TODO(Subv): What should happen if somebody attempts to format a different archive?
+        LOG_ERROR(Service_FS, "tried to format an archive different than SaveData, %u", cmd_buff[1]);
+        cmd_buff[1] = UnimplementedFunction(ErrorModule::FS).raw;
+        return;
+    }
+
+    if (archive_path.GetType() != FileSys::LowPathType::Empty) {
+        // TODO(Subv): Implement formatting the SaveData of other games
+        LOG_ERROR(Service_FS, "archive LowPath type other than empty is currently unsupported");
+        cmd_buff[1] = UnimplementedFunction(ErrorModule::FS).raw;
+        return;
+    }
+
+    cmd_buff[1] = FormatSaveData().raw;
+}
+
+/**
+ * FS_User::FormatThisUserSaveData service function
+ *  Inputs:
+ *      0: 0x080F0180
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ */
+static void FormatThisUserSaveData(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+    LOG_DEBUG(Service_FS, "(STUBBED)");
+
+    // TODO(Subv): Find out what the inputs and outputs of this function are
+
+    cmd_buff[1] = FormatSaveData().raw;
+}
+
+const FSUserInterface::FunctionInfo FunctionTable[] = {
+    {0x000100C6, nullptr,               "Dummy1"},
+    {0x040100C4, nullptr,               "Control"},
+    {0x08010002, Initialize,            "Initialize"},
+    {0x080201C2, OpenFile,              "OpenFile"},
+    {0x08030204, OpenFileDirectly,      "OpenFileDirectly"},
+    {0x08040142, DeleteFile,            "DeleteFile"},
+    {0x08050244, RenameFile,            "RenameFile"},
+    {0x08060142, DeleteDirectory,       "DeleteDirectory"},
+    {0x08070142, nullptr,               "DeleteDirectoryRecursively"},
+    {0x08080202, CreateFile,            "CreateFile"},
+    {0x08090182, CreateDirectory,       "CreateDirectory"},
+    {0x080A0244, RenameDirectory,       "RenameDirectory"},
+    {0x080B0102, OpenDirectory,         "OpenDirectory"},
+    {0x080C00C2, OpenArchive,           "OpenArchive"},
+    {0x080D0144, nullptr,               "ControlArchive"},
+    {0x080E0080, CloseArchive,          "CloseArchive"},
+    {0x080F0180, FormatThisUserSaveData,"FormatThisUserSaveData"},
+    {0x08100200, nullptr,               "CreateSystemSaveData"},
+    {0x08110040, nullptr,               "DeleteSystemSaveData"},
+    {0x08120080, nullptr,               "GetFreeBytes"},
+    {0x08130000, nullptr,               "GetCardType"},
+    {0x08140000, nullptr,               "GetSdmcArchiveResource"},
+    {0x08150000, nullptr,               "GetNandArchiveResource"},
+    {0x08160000, nullptr,               "GetSdmcFatfsErro"},
+    {0x08170000, IsSdmcDetected,        "IsSdmcDetected"},
+    {0x08180000, IsSdmcWriteable,       "IsSdmcWritable"},
+    {0x08190042, nullptr,               "GetSdmcCid"},
+    {0x081A0042, nullptr,               "GetNandCid"},
+    {0x081B0000, nullptr,               "GetSdmcSpeedInfo"},
+    {0x081C0000, nullptr,               "GetNandSpeedInfo"},
+    {0x081D0042, nullptr,               "GetSdmcLog"},
+    {0x081E0042, nullptr,               "GetNandLog"},
+    {0x081F0000, nullptr,               "ClearSdmcLog"},
+    {0x08200000, nullptr,               "ClearNandLog"},
+    {0x08210000, nullptr,               "CardSlotIsInserted"},
+    {0x08220000, nullptr,               "CardSlotPowerOn"},
+    {0x08230000, nullptr,               "CardSlotPowerOff"},
+    {0x08240000, nullptr,               "CardSlotGetCardIFPowerStatus"},
+    {0x08250040, nullptr,               "CardNorDirectCommand"},
+    {0x08260080, nullptr,               "CardNorDirectCommandWithAddress"},
+    {0x08270082, nullptr,               "CardNorDirectRead"},
+    {0x082800C2, nullptr,               "CardNorDirectReadWithAddress"},
+    {0x08290082, nullptr,               "CardNorDirectWrite"},
+    {0x082A00C2, nullptr,               "CardNorDirectWriteWithAddress"},
+    {0x082B00C2, nullptr,               "CardNorDirectRead_4xIO"},
+    {0x082C0082, nullptr,               "CardNorDirectCpuWriteWithoutVerify"},
+    {0x082D0040, nullptr,               "CardNorDirectSectorEraseWithoutVerify"},
+    {0x082E0040, nullptr,               "GetProductInfo"},
+    {0x082F0040, nullptr,               "GetProgramLaunchInfo"},
+    {0x08300182, nullptr,               "CreateExtSaveData"},
+    {0x08310180, nullptr,               "CreateSharedExtSaveData"},
+    {0x08320102, nullptr,               "ReadExtSaveDataIcon"},
+    {0x08330082, nullptr,               "EnumerateExtSaveData"},
+    {0x08340082, nullptr,               "EnumerateSharedExtSaveData"},
+    {0x08350080, nullptr,               "DeleteExtSaveData"},
+    {0x08360080, nullptr,               "DeleteSharedExtSaveData"},
+    {0x08370040, nullptr,               "SetCardSpiBaudRate"},
+    {0x08380040, nullptr,               "SetCardSpiBusMode"},
+    {0x08390000, nullptr,               "SendInitializeInfoTo9"},
+    {0x083A0100, nullptr,               "GetSpecialContentIndex"},
+    {0x083B00C2, nullptr,               "GetLegacyRomHeader"},
+    {0x083C00C2, nullptr,               "GetLegacyBannerData"},
+    {0x083D0100, nullptr,               "CheckAuthorityToAccessExtSaveData"},
+    {0x083E00C2, nullptr,               "QueryTotalQuotaSize"},
+    {0x083F00C0, nullptr,               "GetExtDataBlockSize"},
+    {0x08400040, nullptr,               "AbnegateAccessRight"},
+    {0x08410000, nullptr,               "DeleteSdmcRoot"},
+    {0x08420040, nullptr,               "DeleteAllExtSaveDataOnNand"},
+    {0x08430000, nullptr,               "InitializeCtrFileSystem"},
+    {0x08440000, nullptr,               "CreateSeed"},
+    {0x084500C2, nullptr,               "GetFormatInfo"},
+    {0x08460102, nullptr,               "GetLegacyRomHeader2"},
+    {0x08470180, nullptr,               "FormatCtrCardUserSaveData"},
+    {0x08480042, nullptr,               "GetSdmcCtrRootPath"},
+    {0x08490040, nullptr,               "GetArchiveResource"},
+    {0x084A0002, nullptr,               "ExportIntegrityVerificationSeed"},
+    {0x084B0002, nullptr,               "ImportIntegrityVerificationSeed"},
+    {0x084C0242, FormatSaveData,        "FormatSaveData"},
+    {0x084D0102, nullptr,               "GetLegacySubBannerData"},
+    {0x084E0342, nullptr,               "UpdateSha256Context"},
+    {0x084F0102, nullptr,               "ReadSpecialFile"},
+    {0x08500040, nullptr,               "GetSpecialFileSize"},
+    {0x08580000, nullptr,               "GetMovableSedHashedKeyYRandomData"},
+    {0x08610042, nullptr,               "InitializeWithSdkVersion"},
+    {0x08620040, nullptr,               "SetPriority"},
+    {0x08630000, nullptr,               "GetPriority"},
+};
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Interface class
+
+FSUserInterface::FSUserInterface() {
+    Register(FunctionTable, ARRAY_SIZE(FunctionTable));
+}
+
+} // namespace FS
+} // namespace Service
diff --git a/src/core/hle/service/fs_user.h b/src/core/hle/service/fs/fs_user.h
index 005382540..2d896dd5f 100644
--- a/src/core/hle/service/fs_user.h
+++ b/src/core/hle/service/fs/fs_user.h
@@ -1,5 +1,5 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #pragma once
@@ -9,23 +9,18 @@
 ////////////////////////////////////////////////////////////////////////////////////////////////////
 // Namespace FS_User
 
-namespace FS_User {
+namespace Service {
+namespace FS {
 
 /// Interface to "fs:USER" service
-class Interface : public Service::Interface {
+class FSUserInterface : public Service::Interface {
 public:
+    FSUserInterface();
 
-    Interface();
-
-    ~Interface();
-
-    /**
-     * Gets the string port name used by CTROS for the service
-     * @return Port name of service
-     */
     std::string GetPortName() const override {
         return "fs:USER";
     }
 };
 
-} // namespace
+} // namespace FS
+} // namespace Service
diff --git a/src/core/hle/service/fs_user.cpp b/src/core/hle/service/fs_user.cpp
deleted file mode 100644
index 435be5b5d..000000000
--- a/src/core/hle/service/fs_user.cpp
+++ /dev/null
@@ -1,409 +0,0 @@
-// Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
-// Refer to the license.txt file included.
-
-#include "common/common.h"
-
-#include "common/string_util.h"
-#include "core/hle/kernel/archive.h"
-#include "core/hle/kernel/archive.h"
-#include "core/hle/result.h"
-#include "core/hle/service/fs_user.h"
-#include "core/settings.h"
-
-////////////////////////////////////////////////////////////////////////////////////////////////////
-// Namespace FS_User
-
-namespace FS_User {
-
-static void Initialize(Service::Interface* self) {
-    u32* cmd_buff = Service::GetCommandBuffer();
-
-    // TODO(Link Mauve): check the behavior when cmd_buff[1] isn't 32, as per
-    // http://3dbrew.org/wiki/FS:Initialize#Request
-    cmd_buff[1] = RESULT_SUCCESS.raw;
-
-    DEBUG_LOG(KERNEL, "called");
-}
-
-/**
- * FS_User::OpenFile service function
- *  Inputs:
- *      1 : Transaction
- *      2 : Archive handle lower word
- *      3 : Archive handle upper word
- *      4 : Low path type
- *      5 : Low path size
- *      6 : Open flags
- *      7 : Attributes
- *      8 : (LowPathSize << 14) | 2
- *      9 : Low path data pointer
- *  Outputs:
- *      1 : Result of function, 0 on success, otherwise error code
- *      3 : File handle
- */
-static void OpenFile(Service::Interface* self) {
-    u32* cmd_buff = Service::GetCommandBuffer();
-
-    // TODO(Link Mauve): cmd_buff[2], aka archive handle lower word, isn't used according to
-    // 3dmoo's or ctrulib's implementations.  Triple check if it's really the case.
-    Handle archive_handle = static_cast<Handle>(cmd_buff[3]);
-    auto filename_type    = static_cast<FileSys::LowPathType>(cmd_buff[4]);
-    u32 filename_size     = cmd_buff[5];
-    FileSys::Mode mode; mode.hex = cmd_buff[6];
-    u32 attributes        = cmd_buff[7]; // TODO(Link Mauve): do something with those attributes.
-    u32 filename_ptr      = cmd_buff[9];
-    FileSys::Path file_path(filename_type, filename_size, filename_ptr);
-
-    DEBUG_LOG(KERNEL, "path=%s, mode=%d attrs=%d", file_path.DebugStr().c_str(), mode, attributes);
-
-    ResultVal<Handle> handle = Kernel::OpenFileFromArchive(archive_handle, file_path, mode);
-    cmd_buff[1] = handle.Code().raw;
-    if (handle.Succeeded()) {
-        cmd_buff[3] = *handle;
-    } else {
-        ERROR_LOG(KERNEL, "failed to get a handle for file %s", file_path.DebugStr().c_str());
-    }
-
-    DEBUG_LOG(KERNEL, "called");
-}
-
-/**
- * FS_User::OpenFileDirectly service function
- *  Inputs:
- *      1 : Transaction
- *      2 : Archive ID
- *      3 : Archive low path type
- *      4 : Archive low path size
- *      5 : File low path type
- *      6 : File low path size
- *      7 : Flags
- *      8 : Attributes
- *      9 : (ArchiveLowPathSize << 14) | 0x802
- *      10 : Archive low path
- *      11 : (FileLowPathSize << 14) | 2
- *      12 : File low path
- *  Outputs:
- *      1 : Result of function, 0 on success, otherwise error code
- *      3 : File handle
- */
-static void OpenFileDirectly(Service::Interface* self) {
-    u32* cmd_buff = Service::GetCommandBuffer();
-
-    auto archive_id       = static_cast<FileSys::Archive::IdCode>(cmd_buff[2]);
-    auto archivename_type = static_cast<FileSys::LowPathType>(cmd_buff[3]);
-    u32 archivename_size  = cmd_buff[4];
-    auto filename_type    = static_cast<FileSys::LowPathType>(cmd_buff[5]);
-    u32 filename_size     = cmd_buff[6];
-    FileSys::Mode mode; mode.hex = cmd_buff[7];
-    u32 attributes        = cmd_buff[8]; // TODO(Link Mauve): do something with those attributes.
-    u32 archivename_ptr   = cmd_buff[10];
-    u32 filename_ptr      = cmd_buff[12];
-    FileSys::Path archive_path(archivename_type, archivename_size, archivename_ptr);
-    FileSys::Path file_path(filename_type, filename_size, filename_ptr);
-
-    DEBUG_LOG(KERNEL, "archive_path=%s file_path=%s, mode=%d attributes=%d",
-              archive_path.DebugStr().c_str(), file_path.DebugStr().c_str(), mode, attributes);
-
-    if (archive_path.GetType() != FileSys::Empty) {
-        ERROR_LOG(KERNEL, "archive LowPath type other than empty is currently unsupported");
-        cmd_buff[1] = UnimplementedFunction(ErrorModule::FS).raw;
-        return;
-    }
-
-    // TODO(Link Mauve): Check if we should even get a handle for the archive, and don't leak it
-    // TODO(yuriks): Why is there all this duplicate (and seemingly useless) code up here?
-    ResultVal<Handle> archive_handle = Kernel::OpenArchive(archive_id);
-    cmd_buff[1] = archive_handle.Code().raw;
-    if (archive_handle.Failed()) {
-        ERROR_LOG(KERNEL, "failed to get a handle for archive");
-        return;
-    }
-    // cmd_buff[2] isn't used according to 3dmoo's implementation.
-    cmd_buff[3] = *archive_handle;
-
-    ResultVal<Handle> handle = Kernel::OpenFileFromArchive(*archive_handle, file_path, mode);
-    cmd_buff[1] = handle.Code().raw;
-    if (handle.Succeeded()) {
-        cmd_buff[3] = *handle;
-    } else {
-        ERROR_LOG(KERNEL, "failed to get a handle for file %s", file_path.DebugStr().c_str());
-    }
-
-    DEBUG_LOG(KERNEL, "called");
-}
-
-/*
- * FS_User::DeleteFile service function
- *  Inputs:
- *      2 : Archive handle lower word
- *      3 : Archive handle upper word
- *      4 : File path string type
- *      5 : File path string size
- *      7 : File path string data
- *  Outputs:
- *      1 : Result of function, 0 on success, otherwise error code
- */
-void DeleteFile(Service::Interface* self) {
-    u32* cmd_buff = Service::GetCommandBuffer();
-
-    // TODO(Link Mauve): cmd_buff[2], aka archive handle lower word, isn't used according to
-    // 3dmoo's or ctrulib's implementations.  Triple check if it's really the case.
-    Handle archive_handle = static_cast<Handle>(cmd_buff[3]);
-    auto filename_type    = static_cast<FileSys::LowPathType>(cmd_buff[4]);
-    u32 filename_size     = cmd_buff[5];
-    u32 filename_ptr      = cmd_buff[7];
-
-    FileSys::Path file_path(filename_type, filename_size, filename_ptr);
-
-    DEBUG_LOG(KERNEL, "type=%d size=%d data=%s",
-              filename_type, filename_size, file_path.DebugStr().c_str());
-
-    cmd_buff[1] = Kernel::DeleteFileFromArchive(archive_handle, file_path);
-    
-    DEBUG_LOG(KERNEL, "called");
-}
-
-/*
- * FS_User::DeleteDirectory service function
- *  Inputs:
- *      2 : Archive handle lower word
- *      3 : Archive handle upper word
- *      4 : Directory path string type
- *      5 : Directory path string size
- *      7 : Directory path string data
- *  Outputs:
- *      1 : Result of function, 0 on success, otherwise error code
- */
-void DeleteDirectory(Service::Interface* self) {
-    u32* cmd_buff = Service::GetCommandBuffer();
-
-    // TODO(Link Mauve): cmd_buff[2], aka archive handle lower word, isn't used according to
-    // 3dmoo's or ctrulib's implementations.  Triple check if it's really the case.
-    Handle archive_handle = static_cast<Handle>(cmd_buff[3]);
-    auto dirname_type     = static_cast<FileSys::LowPathType>(cmd_buff[4]);
-    u32 dirname_size      = cmd_buff[5];
-    u32 dirname_ptr       = cmd_buff[7];
-
-    FileSys::Path dir_path(dirname_type, dirname_size, dirname_ptr);
-
-    DEBUG_LOG(KERNEL, "type=%d size=%d data=%s",
-              dirname_type, dirname_size, dir_path.DebugStr().c_str());
-    
-    cmd_buff[1] = Kernel::DeleteDirectoryFromArchive(archive_handle, dir_path);
-    
-    DEBUG_LOG(KERNEL, "called");
-}
-
-/*
- * FS_User::CreateDirectory service function
- *  Inputs:
- *      2 : Archive handle lower word
- *      3 : Archive handle upper word
- *      4 : Directory path string type
- *      5 : Directory path string size
- *      8 : Directory path string data
- *  Outputs:
- *      1 : Result of function, 0 on success, otherwise error code
- */
-static void CreateDirectory(Service::Interface* self) {
-    u32* cmd_buff = Service::GetCommandBuffer();
-
-    // TODO: cmd_buff[2], aka archive handle lower word, isn't used according to
-    // 3dmoo's or ctrulib's implementations.  Triple check if it's really the case.
-    Handle archive_handle = static_cast<Handle>(cmd_buff[3]);
-    auto dirname_type = static_cast<FileSys::LowPathType>(cmd_buff[4]);
-    u32 dirname_size = cmd_buff[5];
-    u32 dirname_ptr = cmd_buff[8];
-
-    FileSys::Path dir_path(dirname_type, dirname_size, dirname_ptr);
-
-    DEBUG_LOG(KERNEL, "type=%d size=%d data=%s", dirname_type, dirname_size, dir_path.DebugStr().c_str());
-
-    cmd_buff[1] = Kernel::CreateDirectoryFromArchive(archive_handle, dir_path);
-
-    DEBUG_LOG(KERNEL, "called");
-}
-
-static void OpenDirectory(Service::Interface* self) {
-    u32* cmd_buff = Service::GetCommandBuffer();
-
-    // TODO(Link Mauve): cmd_buff[2], aka archive handle lower word, isn't used according to
-    // 3dmoo's or ctrulib's implementations.  Triple check if it's really the case.
-    Handle archive_handle = static_cast<Handle>(cmd_buff[2]);
-    auto dirname_type = static_cast<FileSys::LowPathType>(cmd_buff[3]);
-    u32 dirname_size = cmd_buff[4];
-    u32 dirname_ptr = cmd_buff[6];
-
-    FileSys::Path dir_path(dirname_type, dirname_size, dirname_ptr);
-
-    DEBUG_LOG(KERNEL, "type=%d size=%d data=%s", dirname_type, dirname_size, dir_path.DebugStr().c_str());
-
-    ResultVal<Handle> handle = Kernel::OpenDirectoryFromArchive(archive_handle, dir_path);
-    cmd_buff[1] = handle.Code().raw;
-    if (handle.Succeeded()) {
-        cmd_buff[3] = *handle;
-    } else {
-        ERROR_LOG(KERNEL, "failed to get a handle for directory");
-    }
-
-    DEBUG_LOG(KERNEL, "called");
-}
-
-/**
- * FS_User::OpenArchive service function
- *  Inputs:
- *      1 : Archive ID
- *      2 : Archive low path type
- *      3 : Archive low path size
- *      4 : (LowPathSize << 14) | 2
- *      5 : Archive low path
- *  Outputs:
- *      1 : Result of function, 0 on success, otherwise error code
- *      2 : Archive handle lower word (unused)
- *      3 : Archive handle upper word (same as file handle)
- */
-static void OpenArchive(Service::Interface* self) {
-    u32* cmd_buff = Service::GetCommandBuffer();
-
-    auto archive_id       = static_cast<FileSys::Archive::IdCode>(cmd_buff[1]);
-    auto archivename_type = static_cast<FileSys::LowPathType>(cmd_buff[2]);
-    u32 archivename_size  = cmd_buff[3];
-    u32 archivename_ptr   = cmd_buff[5];
-    FileSys::Path archive_path(archivename_type, archivename_size, archivename_ptr);
-
-    DEBUG_LOG(KERNEL, "archive_path=%s", archive_path.DebugStr().c_str());
-
-    if (archive_path.GetType() != FileSys::Empty) {
-        ERROR_LOG(KERNEL, "archive LowPath type other than empty is currently unsupported");
-        cmd_buff[1] = UnimplementedFunction(ErrorModule::FS).raw;
-        return;
-    }
-
-    ResultVal<Handle> handle = Kernel::OpenArchive(archive_id);
-    cmd_buff[1] = handle.Code().raw;
-    if (handle.Succeeded()) {
-        // cmd_buff[2] isn't used according to 3dmoo's implementation.
-        cmd_buff[3] = *handle;
-    } else {
-        ERROR_LOG(KERNEL, "failed to get a handle for archive");
-    }
-
-    DEBUG_LOG(KERNEL, "called");
-}
-
-/*
-* FS_User::IsSdmcDetected service function
-*  Outputs:
-*      1 : Result of function, 0 on success, otherwise error code
-*      2 : Whether the Sdmc could be detected
-*/
-static void IsSdmcDetected(Service::Interface* self) {
-    u32* cmd_buff = Service::GetCommandBuffer();
-
-    cmd_buff[1] = 0;
-    cmd_buff[2] = Settings::values.use_virtual_sd ? 1 : 0;
-
-    DEBUG_LOG(KERNEL, "called");
-}
-
-const Interface::FunctionInfo FunctionTable[] = {
-    {0x000100C6, nullptr,               "Dummy1"},
-    {0x040100C4, nullptr,               "Control"},
-    {0x08010002, Initialize,            "Initialize"},
-    {0x080201C2, OpenFile,              "OpenFile"},
-    {0x08030204, OpenFileDirectly,      "OpenFileDirectly"},
-    {0x08040142, DeleteFile,            "DeleteFile"},
-    {0x08050244, nullptr,               "RenameFile"},
-    {0x08060142, DeleteDirectory,       "DeleteDirectory"},
-    {0x08070142, nullptr,               "DeleteDirectoryRecursively"},
-    {0x08080202, nullptr,               "CreateFile"},
-    {0x08090182, CreateDirectory,       "CreateDirectory"},
-    {0x080A0244, nullptr,               "RenameDirectory"},
-    {0x080B0102, OpenDirectory,         "OpenDirectory"},
-    {0x080C00C2, OpenArchive,           "OpenArchive"},
-    {0x080D0144, nullptr,               "ControlArchive"},
-    {0x080E0080, nullptr,               "CloseArchive"},
-    {0x080F0180, nullptr,               "FormatThisUserSaveData"},
-    {0x08100200, nullptr,               "CreateSystemSaveData"},
-    {0x08110040, nullptr,               "DeleteSystemSaveData"},
-    {0x08120080, nullptr,               "GetFreeBytes"},
-    {0x08130000, nullptr,               "GetCardType"},
-    {0x08140000, nullptr,               "GetSdmcArchiveResource"},
-    {0x08150000, nullptr,               "GetNandArchiveResource"},
-    {0x08160000, nullptr,               "GetSdmcFatfsErro"},
-    {0x08170000, IsSdmcDetected,        "IsSdmcDetected"},
-    {0x08180000, nullptr,               "IsSdmcWritable"},
-    {0x08190042, nullptr,               "GetSdmcCid"},
-    {0x081A0042, nullptr,               "GetNandCid"},
-    {0x081B0000, nullptr,               "GetSdmcSpeedInfo"},
-    {0x081C0000, nullptr,               "GetNandSpeedInfo"},
-    {0x081D0042, nullptr,               "GetSdmcLog"},
-    {0x081E0042, nullptr,               "GetNandLog"},
-    {0x081F0000, nullptr,               "ClearSdmcLog"},
-    {0x08200000, nullptr,               "ClearNandLog"},
-    {0x08210000, nullptr,               "CardSlotIsInserted"},
-    {0x08220000, nullptr,               "CardSlotPowerOn"},
-    {0x08230000, nullptr,               "CardSlotPowerOff"},
-    {0x08240000, nullptr,               "CardSlotGetCardIFPowerStatus"},
-    {0x08250040, nullptr,               "CardNorDirectCommand"},
-    {0x08260080, nullptr,               "CardNorDirectCommandWithAddress"},
-    {0x08270082, nullptr,               "CardNorDirectRead"},
-    {0x082800C2, nullptr,               "CardNorDirectReadWithAddress"},
-    {0x08290082, nullptr,               "CardNorDirectWrite"},
-    {0x082A00C2, nullptr,               "CardNorDirectWriteWithAddress"},
-    {0x082B00C2, nullptr,               "CardNorDirectRead_4xIO"},
-    {0x082C0082, nullptr,               "CardNorDirectCpuWriteWithoutVerify"},
-    {0x082D0040, nullptr,               "CardNorDirectSectorEraseWithoutVerify"},
-    {0x082E0040, nullptr,               "GetProductInfo"},
-    {0x082F0040, nullptr,               "GetProgramLaunchInfo"},
-    {0x08300182, nullptr,               "CreateExtSaveData"},
-    {0x08310180, nullptr,               "CreateSharedExtSaveData"},
-    {0x08320102, nullptr,               "ReadExtSaveDataIcon"},
-    {0x08330082, nullptr,               "EnumerateExtSaveData"},
-    {0x08340082, nullptr,               "EnumerateSharedExtSaveData"},
-    {0x08350080, nullptr,               "DeleteExtSaveData"},
-    {0x08360080, nullptr,               "DeleteSharedExtSaveData"},
-    {0x08370040, nullptr,               "SetCardSpiBaudRate"},
-    {0x08380040, nullptr,               "SetCardSpiBusMode"},
-    {0x08390000, nullptr,               "SendInitializeInfoTo9"},
-    {0x083A0100, nullptr,               "GetSpecialContentIndex"},
-    {0x083B00C2, nullptr,               "GetLegacyRomHeader"},
-    {0x083C00C2, nullptr,               "GetLegacyBannerData"},
-    {0x083D0100, nullptr,               "CheckAuthorityToAccessExtSaveData"},
-    {0x083E00C2, nullptr,               "QueryTotalQuotaSize"},
-    {0x083F00C0, nullptr,               "GetExtDataBlockSize"},
-    {0x08400040, nullptr,               "AbnegateAccessRight"},
-    {0x08410000, nullptr,               "DeleteSdmcRoot"},
-    {0x08420040, nullptr,               "DeleteAllExtSaveDataOnNand"},
-    {0x08430000, nullptr,               "InitializeCtrFileSystem"},
-    {0x08440000, nullptr,               "CreateSeed"},
-    {0x084500C2, nullptr,               "GetFormatInfo"},
-    {0x08460102, nullptr,               "GetLegacyRomHeader2"},
-    {0x08470180, nullptr,               "FormatCtrCardUserSaveData"},
-    {0x08480042, nullptr,               "GetSdmcCtrRootPath"},
-    {0x08490040, nullptr,               "GetArchiveResource"},
-    {0x084A0002, nullptr,               "ExportIntegrityVerificationSeed"},
-    {0x084B0002, nullptr,               "ImportIntegrityVerificationSeed"},
-    {0x084C0242, nullptr,               "FormatSaveData"},
-    {0x084D0102, nullptr,               "GetLegacySubBannerData"},
-    {0x084E0342, nullptr,               "UpdateSha256Context"},
-    {0x084F0102, nullptr,               "ReadSpecialFile"},
-    {0x08500040, nullptr,               "GetSpecialFileSize"},
-    {0x08580000, nullptr,               "GetMovableSedHashedKeyYRandomData"},
-    {0x08610042, nullptr,               "InitializeWithSdkVersion"},
-    {0x08620040, nullptr,               "SetPriority"},
-    {0x08630000, nullptr,               "GetPriority"},
-};
-
-////////////////////////////////////////////////////////////////////////////////////////////////////
-// Interface class
-
-Interface::Interface() {
-    Register(FunctionTable, ARRAY_SIZE(FunctionTable));
-}
-
-Interface::~Interface() {
-}
-
-} // namespace
diff --git a/src/core/hle/service/gsp_gpu.cpp b/src/core/hle/service/gsp_gpu.cpp
index de1bd3f61..0127d4ee5 100644
--- a/src/core/hle/service/gsp_gpu.cpp
+++ b/src/core/hle/service/gsp_gpu.cpp
@@ -1,5 +1,5 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 
@@ -33,7 +33,7 @@ static inline u8* GetCommandBuffer(u32 thread_id) {
 }
 
 static inline FrameBufferUpdate* GetFrameBufferInfo(u32 thread_id, u32 screen_index) {
-    _dbg_assert_msg_(GSP, screen_index < 2, "Invalid screen index");
+    _dbg_assert_msg_(Service_GSP, screen_index < 2, "Invalid screen index");
 
     // For each thread there are two FrameBufferUpdate fields
     u32 offset = 0x200 + (2 * thread_id + screen_index) * sizeof(FrameBufferUpdate);
@@ -50,14 +50,14 @@ static inline InterruptRelayQueue* GetInterruptRelayQueue(u32 thread_id) {
 static void WriteHWRegs(u32 base_address, u32 size_in_bytes, const u32* data) {
     // TODO: Return proper error codes
     if (base_address + size_in_bytes >= 0x420000) {
-        ERROR_LOG(GPU, "Write address out of range! (address=0x%08x, size=0x%08x)",
+        LOG_ERROR(Service_GSP, "Write address out of range! (address=0x%08x, size=0x%08x)",
                   base_address, size_in_bytes);
         return;
     }
 
     // size should be word-aligned
     if ((size_in_bytes % 4) != 0) {
-        ERROR_LOG(GPU, "Invalid size 0x%08x", size_in_bytes);
+        LOG_ERROR(Service_GSP, "Invalid size 0x%08x", size_in_bytes);
         return;
     }
 
@@ -72,7 +72,7 @@ static void WriteHWRegs(u32 base_address, u32 size_in_bytes, const u32* data) {
 
 /// Write a GSP GPU hardware register
 static void WriteHWRegs(Service::Interface* self) {
-    u32* cmd_buff = Service::GetCommandBuffer();
+    u32* cmd_buff = Kernel::GetCommandBuffer();
     u32 reg_addr = cmd_buff[1];
     u32 size = cmd_buff[2];
 
@@ -83,19 +83,19 @@ static void WriteHWRegs(Service::Interface* self) {
 
 /// Read a GSP GPU hardware register
 static void ReadHWRegs(Service::Interface* self) {
-    u32* cmd_buff = Service::GetCommandBuffer();
+    u32* cmd_buff = Kernel::GetCommandBuffer();
     u32 reg_addr = cmd_buff[1];
     u32 size = cmd_buff[2];
 
     // TODO: Return proper error codes
     if (reg_addr + size >= 0x420000) {
-        ERROR_LOG(GPU, "Read address out of range! (address=0x%08x, size=0x%08x)", reg_addr, size);
+        LOG_ERROR(Service_GSP, "Read address out of range! (address=0x%08x, size=0x%08x)", reg_addr, size);
         return;
     }
 
     // size should be word-aligned
     if ((size % 4) != 0) {
-        ERROR_LOG(GPU, "Invalid size 0x%08x", size);
+        LOG_ERROR(Service_GSP, "Invalid size 0x%08x", size);
         return;
     }
 
@@ -136,7 +136,7 @@ static void SetBufferSwap(u32 screen_id, const FrameBufferInfo& info) {
  *      1: Result code
  */
 static void SetBufferSwap(Service::Interface* self) {
-    u32* cmd_buff = Service::GetCommandBuffer();
+    u32* cmd_buff = Kernel::GetCommandBuffer();
     u32 screen_id = cmd_buff[1];
     FrameBufferInfo* fb_info = (FrameBufferInfo*)&cmd_buff[2];
     SetBufferSwap(screen_id, *fb_info);
@@ -145,6 +145,30 @@ static void SetBufferSwap(Service::Interface* self) {
 }
 
 /**
+ * GSP_GPU::FlushDataCache service function
+ *
+ * This Function is a no-op, We aren't emulating the CPU cache any time soon.
+ *
+ *  Inputs:
+ *      1 : Address
+ *      2 : Size
+ *      3 : Value 0, some descriptor for the KProcess Handle
+ *      4 : KProcess handle
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ */
+static void FlushDataCache(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+    u32 address = cmd_buff[1];
+    u32 size    = cmd_buff[2];
+    u32 process = cmd_buff[4];
+
+    // TODO(purpasmart96): Verify return header on HW
+
+    cmd_buff[1] = RESULT_SUCCESS.raw; // No error
+}
+
+/**
  * GSP_GPU::RegisterInterruptRelayQueue service function
  *  Inputs:
  *      1 : "Flags" field, purpose is unknown
@@ -155,14 +179,15 @@ static void SetBufferSwap(Service::Interface* self) {
  *      4 : Handle to GSP shared memory
  */
 static void RegisterInterruptRelayQueue(Service::Interface* self) {
-    u32* cmd_buff = Service::GetCommandBuffer();
+    u32* cmd_buff = Kernel::GetCommandBuffer();
     u32 flags = cmd_buff[1];
     g_interrupt_event = cmd_buff[3];
     g_shared_memory = Kernel::CreateSharedMemory("GSPSharedMem");
 
     _assert_msg_(GSP, (g_interrupt_event != 0), "handle is not valid!");
 
-    cmd_buff[2] = g_thread_id++; // ThreadID
+    cmd_buff[1] = 0x2A07; // Value verified by 3dmoo team, purpose unknown, but needed for GSP init
+    cmd_buff[2] = g_thread_id++; // Thread ID
     cmd_buff[4] = g_shared_memory; // GSP shared memory
 
     Kernel::SignalEvent(g_interrupt_event); // TODO(bunnei): Is this correct?
@@ -172,14 +197,15 @@ static void RegisterInterruptRelayQueue(Service::Interface* self) {
  * Signals that the specified interrupt type has occurred to userland code
  * @param interrupt_id ID of interrupt that is being signalled
  * @todo This should probably take a thread_id parameter and only signal this thread?
+ * @todo This probably does not belong in the GSP module, instead move to video_core
  */
 void SignalInterrupt(InterruptId interrupt_id) {
     if (0 == g_interrupt_event) {
-        WARN_LOG(GSP, "cannot synchronize until GSP event has been created!");
+        LOG_WARNING(Service_GSP, "cannot synchronize until GSP event has been created!");
         return;
     }
     if (0 == g_shared_memory) {
-        WARN_LOG(GSP, "cannot synchronize until GSP shared memory has been created!");
+        LOG_WARNING(Service_GSP, "cannot synchronize until GSP shared memory has been created!");
         return;
     }
     for (int thread_id = 0; thread_id < 0x4; ++thread_id) {
@@ -210,6 +236,7 @@ static void ExecuteCommand(const Command& command, u32 thread_id) {
         memcpy(Memory::GetPointer(command.dma_request.dest_address),
                Memory::GetPointer(command.dma_request.source_address),
                command.dma_request.size);
+        SignalInterrupt(InterruptId::DMA);
         break;
 
     // ctrulib homebrew sends all relevant command list data with this command,
@@ -218,13 +245,13 @@ static void ExecuteCommand(const Command& command, u32 thread_id) {
     case CommandId::SET_COMMAND_LIST_LAST:
     {
         auto& params = command.set_command_list_last;
+
         WriteGPURegister(GPU_REG_INDEX(command_processor_config.address), Memory::VirtualToPhysicalAddress(params.address) >> 3);
-        WriteGPURegister(GPU_REG_INDEX(command_processor_config.size), params.size >> 3);
+        WriteGPURegister(GPU_REG_INDEX(command_processor_config.size), params.size);
 
         // TODO: Not sure if we are supposed to always write this .. seems to trigger processing though
         WriteGPURegister(GPU_REG_INDEX(command_processor_config.trigger), 1);
 
-        SignalInterrupt(InterruptId::P3D);
         break;
     }
 
@@ -242,6 +269,8 @@ static void ExecuteCommand(const Command& command, u32 thread_id) {
         WriteGPURegister(GPU_REG_INDEX(memory_fill_config[1].address_end), Memory::VirtualToPhysicalAddress(params.end2) >> 3);
         WriteGPURegister(GPU_REG_INDEX(memory_fill_config[1].size), params.end2 - params.start2);
         WriteGPURegister(GPU_REG_INDEX(memory_fill_config[1].value), params.value2);
+
+        SignalInterrupt(InterruptId::PSC0);
         break;
     }
 
@@ -255,14 +284,9 @@ static void ExecuteCommand(const Command& command, u32 thread_id) {
         WriteGPURegister(GPU_REG_INDEX(display_transfer_config.flags), params.flags);
         WriteGPURegister(GPU_REG_INDEX(display_transfer_config.trigger), 1);
 
-        // TODO(bunnei): Signalling all of these interrupts here is totally wrong, but it seems to
-        // work well enough for running demos. Need to figure out how these all work and trigger
-        // them correctly.
-        SignalInterrupt(InterruptId::PSC0);
+        // TODO(bunnei): Determine if these interrupts should be signalled here.
         SignalInterrupt(InterruptId::PSC1);
         SignalInterrupt(InterruptId::PPF);
-        SignalInterrupt(InterruptId::P3D);
-        SignalInterrupt(InterruptId::DMA);
 
         // Update framebuffer information if requested
         for (int screen_id = 0; screen_id < 2; ++screen_id) {
@@ -298,13 +322,15 @@ static void ExecuteCommand(const Command& command, u32 thread_id) {
     }
 
     default:
-        ERROR_LOG(GSP, "unknown command 0x%08X", (int)command.id.Value());
+        LOG_ERROR(Service_GSP, "unknown command 0x%08X", (int)command.id.Value());
     }
 }
 
 /// This triggers handling of the GX command written to the command buffer in shared memory.
 static void TriggerCmdReqQueue(Service::Interface* self) {
 
+    LOG_TRACE(Service_GSP, "called");
+
     // Iterate through each thread's command queue...
     for (unsigned thread_id = 0; thread_id < 0x4; ++thread_id) {
         CommandBuffer* command_buffer = (CommandBuffer*)GetCommandBuffer(thread_id);
@@ -320,6 +346,9 @@ static void TriggerCmdReqQueue(Service::Interface* self) {
             command_buffer->number_commands = command_buffer->number_commands - 1;
         }
     }
+
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+    cmd_buff[1] = 0; // No error
 }
 
 const Interface::FunctionInfo FunctionTable[] = {
@@ -330,7 +359,7 @@ const Interface::FunctionInfo FunctionTable[] = {
     {0x00050200, SetBufferSwap,                 "SetBufferSwap"},
     {0x00060082, nullptr,                       "SetCommandList"},
     {0x000700C2, nullptr,                       "RequestDma"},
-    {0x00080082, nullptr,                       "FlushDataCache"},
+    {0x00080082, FlushDataCache,                "FlushDataCache"},
     {0x00090082, nullptr,                       "InvalidateDataCache"},
     {0x000A0044, nullptr,                       "RegisterInterruptEvents"},
     {0x000B0040, nullptr,                       "SetLcdForceBlack"},
@@ -367,7 +396,4 @@ Interface::Interface() {
     g_thread_id = 1;
 }
 
-Interface::~Interface() {
-}
-
 } // namespace
diff --git a/src/core/hle/service/gsp_gpu.h b/src/core/hle/service/gsp_gpu.h
index 177ce8da6..932b6170f 100644
--- a/src/core/hle/service/gsp_gpu.h
+++ b/src/core/hle/service/gsp_gpu.h
@@ -1,5 +1,5 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #pragma once
@@ -158,19 +158,11 @@ static_assert(sizeof(CommandBuffer) == 0x200, "CommandBuffer struct has incorrec
 /// Interface to "srv:" service
 class Interface : public Service::Interface {
 public:
-
     Interface();
 
-    ~Interface();
-
-    /**
-     * Gets the string port name used by CTROS for the service
-     * @return Port name of service
-     */
     std::string GetPortName() const override {
         return "gsp::Gpu";
     }
-
 };
 
 /**
diff --git a/src/core/hle/service/hid_user.cpp b/src/core/hle/service/hid_user.cpp
index d29de1a52..99b0ea5a0 100644
--- a/src/core/hle/service/hid_user.cpp
+++ b/src/core/hle/service/hid_user.cpp
@@ -1,5 +1,5 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #include "common/log.h"
@@ -55,7 +55,7 @@ static void UpdateNextCirclePadState() {
 /**
  * Sets a Pad state (button or button combo) as pressed
  */
-void PadButtonPress(PadState pad_state) {
+void PadButtonPress(const PadState& pad_state) {
     next_state.hex |= pad_state.hex;
     UpdateNextCirclePadState();
 }
@@ -63,7 +63,7 @@ void PadButtonPress(PadState pad_state) {
 /**
  * Sets a Pad state (button or button combo) as released
  */
-void PadButtonRelease(PadState pad_state) {
+void PadButtonRelease(const PadState& pad_state) {
     next_state.hex &= ~pad_state.hex;
     UpdateNextCirclePadState();
 }
@@ -153,7 +153,7 @@ void PadUpdateComplete() {
  *      8 : Event signaled by HID_User
  */
 static void GetIPCHandles(Service::Interface* self) {
-    u32* cmd_buff = Service::GetCommandBuffer();
+    u32* cmd_buff = Kernel::GetCommandBuffer();
 
     cmd_buff[1] = 0; // No error
     cmd_buff[3] = shared_mem;
@@ -163,7 +163,7 @@ static void GetIPCHandles(Service::Interface* self) {
     cmd_buff[7] = event_gyroscope;
     cmd_buff[8] = event_debug_pad;
 
-    DEBUG_LOG(KERNEL, "called");
+    LOG_TRACE(Service_HID, "called");
 }
 
 const Interface::FunctionInfo FunctionTable[] = {
@@ -179,7 +179,6 @@ const Interface::FunctionInfo FunctionTable[] = {
     {0x00170000, nullptr,       "GetSoundVolume"},
 };
 
-
 ////////////////////////////////////////////////////////////////////////////////////////////////////
 // Interface class
 
@@ -196,7 +195,4 @@ Interface::Interface() {
     Register(FunctionTable, ARRAY_SIZE(FunctionTable));
 }
 
-Interface::~Interface() {
-}
-
 } // namespace
diff --git a/src/core/hle/service/hid_user.h b/src/core/hle/service/hid_user.h
index 5ed97085d..5b96dda60 100644
--- a/src/core/hle/service/hid_user.h
+++ b/src/core/hle/service/hid_user.h
@@ -1,5 +1,5 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #pragma once
@@ -93,8 +93,8 @@ const PadState PAD_CIRCLE_UP    = {{1u << 30}};
 const PadState PAD_CIRCLE_DOWN  = {{1u << 31}};
 
 // Methods for updating the HID module's state
-void PadButtonPress(PadState pad_state);
-void PadButtonRelease(PadState pad_state);
+void PadButtonPress(const PadState& pad_state);
+void PadButtonRelease(const PadState& pad_state);
 void PadUpdateComplete();
 
 /**
@@ -102,19 +102,11 @@ void PadUpdateComplete();
  */
 class Interface : public Service::Interface {
 public:
-
     Interface();
 
-    ~Interface();
-
-    /**
-     * Gets the string port name used by CTROS for the service
-     * @return Port name of service
-     */
     std::string GetPortName() const override {
         return "hid:USER";
     }
-
 };
 
 } // namespace
diff --git a/src/core/hle/service/http_c.cpp b/src/core/hle/service/http_c.cpp
new file mode 100644
index 000000000..d0bff552f
--- /dev/null
+++ b/src/core/hle/service/http_c.cpp
@@ -0,0 +1,64 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/log.h"
+#include "core/hle/hle.h"
+#include "core/hle/service/http_c.h"
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace HTTP_C
+
+namespace HTTP_C {
+
+const Interface::FunctionInfo FunctionTable[] = {
+    {0x00010044, nullptr,                 "Initialize"},
+    {0x00020082, nullptr,                 "CreateContext"},
+    {0x00030040, nullptr,                 "CloseContext"},
+    {0x00040040, nullptr,                 "CancelConnection"},
+    {0x00050040, nullptr,                 "GetRequestState"},
+    {0x00060040, nullptr,                 "GetDownloadSizeState"},
+    {0x00070040, nullptr,                 "GetRequestError"},
+    {0x00080042, nullptr,                 "InitializeConnectionSession"},
+    {0x00090040, nullptr,                 "BeginRequest"},
+    {0x000A0040, nullptr,                 "BeginRequestAsync"},
+    {0x000B0082, nullptr,                 "ReceiveData"},
+    {0x000C0102, nullptr,                 "ReceiveDataTimeout"},
+    {0x000D0146, nullptr,                 "SetProxy"},
+    {0x000E0040, nullptr,                 "SetProxyDefault"},
+    {0x000F00C4, nullptr,                 "SetBasicAuthorization"},
+    {0x00100080, nullptr,                 "SetSocketBufferSize"},
+    {0x001100C4, nullptr,                 "AddRequestHeader"},
+    {0x001200C4, nullptr,                 "AddPostDataAscii"},
+    {0x001300C4, nullptr,                 "AddPostDataBinary"},
+    {0x00140082, nullptr,                 "AddPostDataRaw"},
+    {0x00150080, nullptr,                 "SetPostDataType"},
+    {0x001600C4, nullptr,                 "SendPostDataAscii"},
+    {0x00170144, nullptr,                 "SendPostDataAsciiTimeout"},
+    {0x001800C4, nullptr,                 "SendPostDataBinary"},
+    {0x00190144, nullptr,                 "SendPostDataBinaryTimeout"},
+    {0x001A0082, nullptr,                 "SendPostDataRaw"},
+    {0x001B0102, nullptr,                 "SendPOSTDataRawTimeout"},
+    {0x001C0080, nullptr,                 "SetPostDataEncoding"},
+    {0x001D0040, nullptr,                 "NotifyFinishSendPostData"},
+    {0x001E00C4, nullptr,                 "GetResponseHeader"},
+    {0x001F0144, nullptr,                 "GetResponseHeaderTimeout"},
+    {0x00200082, nullptr,                 "GetResponseData"},
+    {0x00210102, nullptr,                 "GetResponseDataTimeout"},
+    {0x00220040, nullptr,                 "GetResponseStatusCode"},
+    {0x002300C0, nullptr,                 "GetResponseStatusCodeTimeout"},
+    {0x00240082, nullptr,                 "AddTrustedRootCA"},
+    {0x00350186, nullptr,                 "SetDefaultProxy"},
+    {0x00360000, nullptr,                 "ClearDNSCache"},
+    {0x00370080, nullptr,                 "SetKeepAlive"},
+    {0x003800C0, nullptr,                 "Finalize"},
+};
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Interface class
+
+Interface::Interface() {
+    Register(FunctionTable, ARRAY_SIZE(FunctionTable));
+}
+
+} // namespace
diff --git a/src/core/hle/service/http_c.h b/src/core/hle/service/http_c.h
new file mode 100644
index 000000000..5ea3d1df3
--- /dev/null
+++ b/src/core/hle/service/http_c.h
@@ -0,0 +1,23 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "core/hle/service/service.h"
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace HTTP_C
+
+namespace HTTP_C {
+
+class Interface : public Service::Interface {
+public:
+    Interface();
+
+    std::string GetPortName() const override {
+        return "http:C";
+    }
+};
+
+} // namespace
diff --git a/src/core/hle/service/ir_rst.cpp b/src/core/hle/service/ir_rst.cpp
index be15db231..b388afb15 100644
--- a/src/core/hle/service/ir_rst.cpp
+++ b/src/core/hle/service/ir_rst.cpp
@@ -1,5 +1,5 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #include "common/log.h"
@@ -30,7 +30,4 @@ Interface::Interface() {
     Register(FunctionTable, ARRAY_SIZE(FunctionTable));
 }
 
-Interface::~Interface() {
-}
-
 } // namespace
diff --git a/src/core/hle/service/ir_rst.h b/src/core/hle/service/ir_rst.h
index 73effd7e3..deef701c5 100644
--- a/src/core/hle/service/ir_rst.h
+++ b/src/core/hle/service/ir_rst.h
@@ -1,6 +1,6 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
-// Refer to the license.txt file included.
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included..
 
 #pragma once
 
@@ -14,11 +14,7 @@ namespace IR_RST {
 class Interface : public Service::Interface {
 public:
     Interface();
-    ~Interface();
-    /**
-     * Gets the string port name used by CTROS for the service
-     * @return Port name of service
-     */
+
     std::string GetPortName() const override {
         return "ir:rst";
     }
diff --git a/src/core/hle/service/ir_u.cpp b/src/core/hle/service/ir_u.cpp
index aa9db6f6d..da6f38e41 100644
--- a/src/core/hle/service/ir_u.cpp
+++ b/src/core/hle/service/ir_u.cpp
@@ -1,5 +1,5 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #include "common/log.h"
@@ -39,7 +39,4 @@ Interface::Interface() {
     Register(FunctionTable, ARRAY_SIZE(FunctionTable));
 }
 
-Interface::~Interface() {
-}
-
 } // namespace
diff --git a/src/core/hle/service/ir_u.h b/src/core/hle/service/ir_u.h
index 86d98d079..ec47a1524 100644
--- a/src/core/hle/service/ir_u.h
+++ b/src/core/hle/service/ir_u.h
@@ -1,5 +1,5 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #pragma once
@@ -14,11 +14,7 @@ namespace IR_U {
 class Interface : public Service::Interface {
 public:
     Interface();
-    ~Interface();
-    /**
-     * Gets the string port name used by CTROS for the service
-     * @return Port name of service
-     */
+
     std::string GetPortName() const override {
         return "ir:u";
     }
diff --git a/src/core/hle/service/ldr_ro.cpp b/src/core/hle/service/ldr_ro.cpp
new file mode 100644
index 000000000..9c9e90a40
--- /dev/null
+++ b/src/core/hle/service/ldr_ro.cpp
@@ -0,0 +1,29 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/log.h"
+#include "core/hle/hle.h"
+#include "core/hle/service/ldr_ro.h"
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace LDR_RO
+
+namespace LDR_RO {
+
+const Interface::FunctionInfo FunctionTable[] = {
+    {0x000100C2, nullptr,               "Initialize"},
+    {0x00020082, nullptr,               "CRR_Load"},
+    {0x00030042, nullptr,               "CRR_Unload"},
+    {0x000402C2, nullptr,               "CRO_LoadAndFix"},
+    {0x000500C2, nullptr,               "CRO_ApplyRelocationPatchesAndLink"}
+};
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Interface class
+
+Interface::Interface() {
+    Register(FunctionTable, ARRAY_SIZE(FunctionTable));
+}
+
+} // namespace
diff --git a/src/core/hle/service/ldr_ro.h b/src/core/hle/service/ldr_ro.h
new file mode 100644
index 000000000..331637cde
--- /dev/null
+++ b/src/core/hle/service/ldr_ro.h
@@ -0,0 +1,23 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "core/hle/service/service.h"
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace LDR_RO
+
+namespace LDR_RO {
+
+class Interface : public Service::Interface {
+public:
+    Interface();
+
+    std::string GetPortName() const override {
+        return "ldr:ro";
+    }
+};
+
+} // namespace
diff --git a/src/core/hle/service/mic_u.cpp b/src/core/hle/service/mic_u.cpp
index d6f30e9ae..82bce9180 100644
--- a/src/core/hle/service/mic_u.cpp
+++ b/src/core/hle/service/mic_u.cpp
@@ -1,5 +1,5 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #include "common/log.h"
@@ -37,7 +37,4 @@ Interface::Interface() {
     Register(FunctionTable, ARRAY_SIZE(FunctionTable));
 }
 
-Interface::~Interface() {
-}
-
 } // namespace
diff --git a/src/core/hle/service/mic_u.h b/src/core/hle/service/mic_u.h
index 2a495f3a9..dc795d14c 100644
--- a/src/core/hle/service/mic_u.h
+++ b/src/core/hle/service/mic_u.h
@@ -1,5 +1,5 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #pragma once
@@ -16,11 +16,7 @@ namespace MIC_U {
 class Interface : public Service::Interface {
 public:
     Interface();
-    ~Interface();
-    /**
-     * Gets the string port name used by CTROS for the service
-     * @return Port name of service
-     */
+
     std::string GetPortName() const override {
         return "mic:u";
     }
diff --git a/src/core/hle/service/ndm_u.cpp b/src/core/hle/service/ndm_u.cpp
index 37c0661bf..233b14f6d 100644
--- a/src/core/hle/service/ndm_u.cpp
+++ b/src/core/hle/service/ndm_u.cpp
@@ -1,5 +1,5 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #include "core/hle/hle.h"
@@ -24,7 +24,4 @@ Interface::Interface() {
     Register(FunctionTable, ARRAY_SIZE(FunctionTable));
 }
 
-Interface::~Interface() {
-}
-
 } // namespace
diff --git a/src/core/hle/service/ndm_u.h b/src/core/hle/service/ndm_u.h
index 2ca9fcf22..51c4b3902 100644
--- a/src/core/hle/service/ndm_u.h
+++ b/src/core/hle/service/ndm_u.h
@@ -1,5 +1,5 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #pragma once
@@ -15,19 +15,11 @@ namespace NDM_U {
 
 class Interface : public Service::Interface {
 public:
-
     Interface();
 
-    ~Interface();
-
-    /**
-     * Gets the string port name used by CTROS for the service
-     * @return Port name of service
-     */
     std::string GetPortName() const override {
         return "ndm:u";
     }
-
 };
 
 } // namespace
diff --git a/src/core/hle/service/news_u.cpp b/src/core/hle/service/news_u.cpp
new file mode 100644
index 000000000..b5adad4c6
--- /dev/null
+++ b/src/core/hle/service/news_u.cpp
@@ -0,0 +1,25 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/log.h"
+#include "core/hle/hle.h"
+#include "core/hle/service/news_u.h"
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace NEWS_U
+
+namespace NEWS_U {
+
+const Interface::FunctionInfo FunctionTable[] = {
+    {0x000100C8, nullptr,               "AddNotification"},
+};
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Interface class
+
+Interface::Interface() {
+    Register(FunctionTable, ARRAY_SIZE(FunctionTable));
+}
+
+} // namespace
diff --git a/src/core/hle/service/news_u.h b/src/core/hle/service/news_u.h
new file mode 100644
index 000000000..0473cd19c
--- /dev/null
+++ b/src/core/hle/service/news_u.h
@@ -0,0 +1,23 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "core/hle/service/service.h"
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace NEWS_U
+
+namespace NEWS_U {
+
+class Interface : public Service::Interface {
+public:
+    Interface();
+
+    std::string GetPortName() const override {
+        return "news:u";
+    }
+};
+
+} // namespace
diff --git a/src/core/hle/service/nim_aoc.cpp b/src/core/hle/service/nim_aoc.cpp
new file mode 100644
index 000000000..17d1c4ff5
--- /dev/null
+++ b/src/core/hle/service/nim_aoc.cpp
@@ -0,0 +1,31 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/log.h"
+#include "core/hle/hle.h"
+#include "core/hle/service/nim_aoc.h"
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace NIM_AOC
+
+namespace NIM_AOC {
+
+const Interface::FunctionInfo FunctionTable[] = {
+    {0x00030042, nullptr,               "SetApplicationId"},
+    {0x00040042, nullptr,               "SetTin"},
+    {0x000902D0, nullptr,               "ListContentSetsEx"},
+    {0x00180000, nullptr,               "GetBalance"},
+    {0x001D0000, nullptr,               "GetCustomerSupportCode"},
+    {0x00210000, nullptr,               "Initialize"},
+    {0x00240282, nullptr,               "CalculateContentsRequiredSize"},
+    {0x00250000, nullptr,               "RefreshServerTime"},
+};
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Interface class
+
+Interface::Interface() {
+    Register(FunctionTable, ARRAY_SIZE(FunctionTable));
+}
+
+} // namespace
diff --git a/src/core/hle/service/nim_aoc.h b/src/core/hle/service/nim_aoc.h
new file mode 100644
index 000000000..aeb71eed2
--- /dev/null
+++ b/src/core/hle/service/nim_aoc.h
@@ -0,0 +1,23 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "core/hle/service/service.h"
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace NIM_AOC
+
+namespace NIM_AOC {
+
+class Interface : public Service::Interface {
+public:
+    Interface();
+
+    std::string GetPortName() const override {
+        return "nim:aoc";
+    }
+};
+
+} // namespace
diff --git a/src/core/hle/service/nwm_uds.cpp b/src/core/hle/service/nwm_uds.cpp
index 14df86d85..ce456a966 100644
--- a/src/core/hle/service/nwm_uds.cpp
+++ b/src/core/hle/service/nwm_uds.cpp
@@ -1,5 +1,5 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #include "common/log.h"
@@ -29,7 +29,4 @@ Interface::Interface() {
     Register(FunctionTable, ARRAY_SIZE(FunctionTable));
 }
 
-Interface::~Interface() {
-}
-
 } // namespace
diff --git a/src/core/hle/service/nwm_uds.h b/src/core/hle/service/nwm_uds.h
index 69d2c2002..9043f5aa7 100644
--- a/src/core/hle/service/nwm_uds.h
+++ b/src/core/hle/service/nwm_uds.h
@@ -1,5 +1,5 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #pragma once
@@ -16,11 +16,7 @@ namespace NWM_UDS {
 class Interface : public Service::Interface {
 public:
     Interface();
-    ~Interface();
-    /**
-     * Gets the string port name used by CTROS for the service
-     * @return Port name of service
-     */
+
     std::string GetPortName() const override {
         return "nwm:UDS";
     }
diff --git a/src/core/hle/service/pm_app.cpp b/src/core/hle/service/pm_app.cpp
index 90e9b1bfa..529dccafb 100644
--- a/src/core/hle/service/pm_app.cpp
+++ b/src/core/hle/service/pm_app.cpp
@@ -1,5 +1,5 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #include "common/log.h"
@@ -29,7 +29,4 @@ Interface::Interface() {
     Register(FunctionTable, ARRAY_SIZE(FunctionTable));
 }
 
-Interface::~Interface() {
-}
-
 } // namespace
diff --git a/src/core/hle/service/pm_app.h b/src/core/hle/service/pm_app.h
index 28c38f582..c1fb1f9da 100644
--- a/src/core/hle/service/pm_app.h
+++ b/src/core/hle/service/pm_app.h
@@ -1,5 +1,5 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #pragma once
@@ -14,11 +14,7 @@ namespace PM_APP {
 class Interface : public Service::Interface {
 public:
     Interface();
-    ~Interface();
-    /**
-     * Gets the string port name used by CTROS for the service
-     * @return Port name of service
-     */
+
     std::string GetPortName() const override {
         return "pm:app";
     }
diff --git a/src/core/hle/service/ptm_u.cpp b/src/core/hle/service/ptm_u.cpp
index d9122dbbc..d1498f05c 100644
--- a/src/core/hle/service/ptm_u.cpp
+++ b/src/core/hle/service/ptm_u.cpp
@@ -1,5 +1,5 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #include "common/log.h"
@@ -11,15 +11,101 @@
 
 namespace PTM_U {
 
+/// Charge levels used by PTM functions
+enum class ChargeLevels : u32 {
+    CriticalBattery    = 1,
+    LowBattery         = 2,
+    HalfFull           = 3,
+    MostlyFull         = 4,
+    CompletelyFull     = 5,
+};
+
+static bool shell_open = true;
+
+static bool battery_is_charging = true;
+
+/**
+ * It is unknown if GetAdapterState is the same as GetBatteryChargeState,
+ * it is likely to just be a duplicate function of GetBatteryChargeState
+ * that controls another part of the HW.
+ * PTM_U::GetAdapterState service function
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ *      2 : Output of function, 0 = not charging, 1 = charging.
+ */
+static void GetAdapterState(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+
+    // TODO(purpasmart96): This function is only a stub,
+    // it returns a valid result without implementing full functionality.
+
+    cmd_buff[1] = 0; // No error
+    cmd_buff[2] = battery_is_charging ? 1 : 0;
+
+    LOG_WARNING(Service_PTM, "(STUBBED) called");
+}
+
+/*
+ * PTM_User::GetShellState service function.
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ *      2 : Whether the 3DS's physical shell casing is open (1) or closed (0)
+ */
+static void GetShellState(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+
+    cmd_buff[1] = 0;
+    cmd_buff[2] = shell_open ? 1 : 0;
+
+    LOG_TRACE(Service_PTM, "PTM_U::GetShellState called");
+}
+
+/**
+ * PTM_U::GetBatteryLevel service function
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ *      2 : Battery level, 5 = completely full battery, 4 = mostly full battery,
+ *          3 = half full battery, 2 =  low battery, 1 = critical battery.
+ */
+static void GetBatteryLevel(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+
+    // TODO(purpasmart96): This function is only a stub,
+    // it returns a valid result without implementing full functionality.
+
+    cmd_buff[1] = 0; // No error
+    cmd_buff[2] = static_cast<u32>(ChargeLevels::CompletelyFull); // Set to a completely full battery
+
+    LOG_WARNING(Service_PTM, "(STUBBED) called");
+}
+
+/**
+ * PTM_U::GetBatteryChargeState service function
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ *      2 : Output of function, 0 = not charging, 1 = charging.
+ */
+static void GetBatteryChargeState(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+
+    // TODO(purpasmart96): This function is only a stub,
+    // it returns a valid result without implementing full functionality.
+
+    cmd_buff[1] = 0; // No error
+    cmd_buff[2] = battery_is_charging ? 1 : 0;
+
+    LOG_WARNING(Service_PTM, "(STUBBED) called");
+}
+
 const Interface::FunctionInfo FunctionTable[] = {
     {0x00010002, nullptr,               "RegisterAlarmClient"},
     {0x00020080, nullptr,               "SetRtcAlarm"},
     {0x00030000, nullptr,               "GetRtcAlarm"},
     {0x00040000, nullptr,               "CancelRtcAlarm"},
-    {0x00050000, nullptr,               "GetAdapterState"},
-    {0x00060000, nullptr,               "GetShellState"},
-    {0x00070000, nullptr,               "GetBatteryLevel"},
-    {0x00080000, nullptr,               "GetBatteryChargeState"},
+    {0x00050000, GetAdapterState,       "GetAdapterState"},
+    {0x00060000, GetShellState,         "GetShellState"},
+    {0x00070000, GetBatteryLevel,       "GetBatteryLevel"},
+    {0x00080000, GetBatteryChargeState, "GetBatteryChargeState"},
     {0x00090000, nullptr,               "GetPedometerState"},
     {0x000A0042, nullptr,               "GetStepHistoryEntry"},
     {0x000B00C2, nullptr,               "GetStepHistory"},
@@ -36,7 +122,4 @@ Interface::Interface() {
     Register(FunctionTable, ARRAY_SIZE(FunctionTable));
 }
 
-Interface::~Interface() {
-}
-
 } // namespace
diff --git a/src/core/hle/service/ptm_u.h b/src/core/hle/service/ptm_u.h
index f8d9f57be..a44624fd5 100644
--- a/src/core/hle/service/ptm_u.h
+++ b/src/core/hle/service/ptm_u.h
@@ -1,5 +1,5 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #pragma once
@@ -16,11 +16,7 @@ namespace PTM_U {
 class Interface : public Service::Interface {
 public:
     Interface();
-    ~Interface();
-    /**
-     * Gets the string port name used by CTROS for the service
-     * @return Port name of service
-     */
+
     std::string GetPortName() const override {
         return "ptm:u";
     }
diff --git a/src/core/hle/service/service.cpp b/src/core/hle/service/service.cpp
index fed2268a0..0f3cc2aa8 100644
--- a/src/core/hle/service/service.cpp
+++ b/src/core/hle/service/service.cpp
@@ -1,5 +1,5 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #include "common/common.h"
@@ -7,22 +7,30 @@
 
 #include "core/hle/service/service.h"
 #include "core/hle/service/ac_u.h"
+#include "core/hle/service/act_u.h"
+#include "core/hle/service/am_app.h"
 #include "core/hle/service/am_net.h"
+#include "core/hle/service/apt_a.h"
 #include "core/hle/service/apt_u.h"
 #include "core/hle/service/boss_u.h"
-#include "core/hle/service/cfg_i.h"
-#include "core/hle/service/cfg_u.h"
+#include "core/hle/service/cecd_u.h"
+#include "core/hle/service/cfg/cfg_i.h"
+#include "core/hle/service/cfg/cfg_u.h"
 #include "core/hle/service/csnd_snd.h"
 #include "core/hle/service/dsp_dsp.h"
 #include "core/hle/service/err_f.h"
-#include "core/hle/service/fs_user.h"
+#include "core/hle/service/fs/fs_user.h"
 #include "core/hle/service/frd_u.h"
 #include "core/hle/service/gsp_gpu.h"
 #include "core/hle/service/hid_user.h"
+#include "core/hle/service/http_c.h"
 #include "core/hle/service/ir_rst.h"
 #include "core/hle/service/ir_u.h"
+#include "core/hle/service/ldr_ro.h"
 #include "core/hle/service/mic_u.h"
 #include "core/hle/service/ndm_u.h"
+#include "core/hle/service/news_u.h"
+#include "core/hle/service/nim_aoc.h"
 #include "core/hle/service/nwm_uds.h"
 #include "core/hle/service/pm_app.h"
 #include "core/hle/service/ptm_u.h"
@@ -48,7 +56,8 @@ Manager::~Manager() {
 
 /// Add a service to the manager (does not create it though)
 void Manager::AddService(Interface* service) {
-    m_port_map[service->GetPortName()] = Kernel::g_object_pool.Create(service);
+    // TOOD(yuriks): Fix error reporting
+    m_port_map[service->GetPortName()] = Kernel::g_handle_table.Create(service).ValueOr(INVALID_HANDLE);
     m_services.push_back(service);
 }
 
@@ -62,7 +71,7 @@ void Manager::DeleteService(const std::string& port_name) {
 
 /// Get a Service Interface from its Handle
 Interface* Manager::FetchFromHandle(Handle handle) {
-    return Kernel::g_object_pool.Get<Interface>(handle);
+    return Kernel::g_handle_table.Get<Interface>(handle);
 }
 
 /// Get a Service Interface from its port
@@ -84,35 +93,43 @@ void Init() {
 
     g_manager->AddService(new SRV::Interface);
     g_manager->AddService(new AC_U::Interface);
+    g_manager->AddService(new ACT_U::Interface);
+    g_manager->AddService(new AM_APP::Interface);
     g_manager->AddService(new AM_NET::Interface);
+    g_manager->AddService(new APT_A::Interface);
     g_manager->AddService(new APT_U::Interface);
     g_manager->AddService(new BOSS_U::Interface);
+    g_manager->AddService(new CECD_U::Interface);
     g_manager->AddService(new CFG_I::Interface);
     g_manager->AddService(new CFG_U::Interface);
     g_manager->AddService(new CSND_SND::Interface);
     g_manager->AddService(new DSP_DSP::Interface);
     g_manager->AddService(new ERR_F::Interface);
     g_manager->AddService(new FRD_U::Interface);
-    g_manager->AddService(new FS_User::Interface);
+    g_manager->AddService(new FS::FSUserInterface);
     g_manager->AddService(new GSP_GPU::Interface);
     g_manager->AddService(new HID_User::Interface);
+    g_manager->AddService(new HTTP_C::Interface);
     g_manager->AddService(new IR_RST::Interface);
     g_manager->AddService(new IR_U::Interface);
+    g_manager->AddService(new LDR_RO::Interface);
     g_manager->AddService(new MIC_U::Interface);
     g_manager->AddService(new NDM_U::Interface);
+    g_manager->AddService(new NEWS_U::Interface);
+    g_manager->AddService(new NIM_AOC::Interface);
     g_manager->AddService(new NWM_UDS::Interface);
     g_manager->AddService(new PM_APP::Interface);
     g_manager->AddService(new PTM_U::Interface);
     g_manager->AddService(new SOC_U::Interface);
     g_manager->AddService(new SSL_C::Interface);
 
-    NOTICE_LOG(HLE, "initialized OK");
+    LOG_DEBUG(Service, "initialized OK");
 }
 
 /// Shutdown ServiceManager
 void Shutdown() {
     delete g_manager;
-    NOTICE_LOG(HLE, "shutdown OK");
+    LOG_DEBUG(Service, "shutdown OK");
 }
 
 
diff --git a/src/core/hle/service/service.h b/src/core/hle/service/service.h
index 20e7fb4d3..28b4ccd17 100644
--- a/src/core/hle/service/service.h
+++ b/src/core/hle/service/service.h
@@ -1,5 +1,5 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #pragma once
@@ -10,9 +10,11 @@
 #include <string>
 
 #include "common/common.h"
+#include "common/string_util.h"
 #include "core/mem_map.h"
 
 #include "core/hle/kernel/kernel.h"
+#include "core/hle/kernel/session.h"
 #include "core/hle/svc.h"
 
 ////////////////////////////////////////////////////////////////////////////////////////////////////
@@ -20,30 +22,19 @@
 
 namespace Service {
 
-static const int kMaxPortSize           = 0x08; ///< Maximum size of a port name (8 characters)
-static const int kCommandHeaderOffset   = 0x80; ///< Offset into command buffer of header
-
-/**
- * Returns a pointer to the command buffer in kernel memory
- * @param offset Optional offset into command buffer
- * @return Pointer to command buffer
- */
-inline static u32* GetCommandBuffer(const int offset=0) {
-    return (u32*)Memory::GetPointer(Memory::KERNEL_MEMORY_VADDR + kCommandHeaderOffset + offset);
-}
+static const int kMaxPortSize = 8; ///< Maximum size of a port name (8 characters)
 
 class Manager;
 
 /// Interface to a CTROS service
-class Interface  : public Kernel::Object {
+class Interface  : public Kernel::Session {
+    // TODO(yuriks): An "Interface" being a Kernel::Object is mostly non-sense. Interface should be
+    // just something that encapsulates a session and acts as a helper to implement service
+    // processes.
+
     friend class Manager;
 public:
-
     std::string GetName() const override { return GetPortName(); }
-    std::string GetTypeName() const override { return GetPortName(); }
-
-    static Kernel::HandleType GetStaticHandleType() { return Kernel::HandleType::Service; }
-    Kernel::HandleType GetHandleType() const override { return Kernel::HandleType::Service; }
 
     typedef void (*Function)(Interface*);
 
@@ -63,7 +54,8 @@ public:
 
     /// Allocates a new handle for the service
     Handle CreateHandle(Kernel::Object *obj) {
-        Handle handle = Kernel::g_object_pool.Create(obj);
+        // TODO(yuriks): Fix error reporting
+        Handle handle = Kernel::g_handle_table.Create(obj).ValueOr(INVALID_HANDLE);
         m_handles.push_back(handle);
         return handle;
     }
@@ -71,29 +63,28 @@ public:
     /// Frees a handle from the service
     template <class T>
     void DeleteHandle(const Handle handle) {
-        Kernel::g_object_pool.Destroy<T>(handle);
+        Kernel::g_handle_table.Close(handle);
         m_handles.erase(std::remove(m_handles.begin(), m_handles.end(), handle), m_handles.end());
     }
 
     ResultVal<bool> SyncRequest() override {
-        u32* cmd_buff = GetCommandBuffer();
+        u32* cmd_buff = Kernel::GetCommandBuffer();
         auto itr = m_functions.find(cmd_buff[0]);
 
-        if (itr == m_functions.end()) {
-            ERROR_LOG(OSHLE, "unknown/unimplemented function: port=%s, command=0x%08X",
-                GetPortName().c_str(), cmd_buff[0]);
+        if (itr == m_functions.end() || itr->second.func == nullptr) {
+            // Number of params == bits 0-5 + bits 6-11
+            int num_params = (cmd_buff[0] & 0x3F) + ((cmd_buff[0] >> 6) & 0x3F);
 
-            // TODO(bunnei): Hack - ignore error
-            u32* cmd_buff = Service::GetCommandBuffer();
-            cmd_buff[1] = 0;
-            return MakeResult<bool>(false);
-        }
-        if (itr->second.func == nullptr) {
-            ERROR_LOG(OSHLE, "unimplemented function: port=%s, name=%s",
-                GetPortName().c_str(), itr->second.name.c_str());
+            std::string error = "unknown/unimplemented function '%s': port=%s";
+            for (int i = 1; i <= num_params; ++i) {
+                error += Common::StringFromFormat(", cmd_buff[%i]=%u", i, cmd_buff[i]);
+            }
+
+            std::string name = (itr == m_functions.end()) ? Common::StringFromFormat("0x%08X", cmd_buff[0]) : itr->second.name;
+
+            LOG_ERROR(Service, error.c_str(), name.c_str(), GetPortName().c_str());
 
             // TODO(bunnei): Hack - ignore error
-            u32* cmd_buff = Service::GetCommandBuffer();
             cmd_buff[1] = 0;
             return MakeResult<bool>(false);
         }
@@ -103,12 +94,6 @@ public:
         return MakeResult<bool>(false); // TODO: Implement return from actual function
     }
 
-    ResultVal<bool> WaitSynchronization() override {
-        // TODO(bunnei): ImplementMe
-        ERROR_LOG(OSHLE, "unimplemented function");
-        return UnimplementedFunction(ErrorModule::OS);
-    }
-
 protected:
 
     /**
diff --git a/src/core/hle/service/soc_u.cpp b/src/core/hle/service/soc_u.cpp
index 2f8910468..ef4f9829d 100644
--- a/src/core/hle/service/soc_u.cpp
+++ b/src/core/hle/service/soc_u.cpp
@@ -1,5 +1,5 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #include "common/log.h"
@@ -52,7 +52,4 @@ Interface::Interface() {
     Register(FunctionTable, ARRAY_SIZE(FunctionTable));
 }
 
-Interface::~Interface() {
-}
-
 } // namespace
diff --git a/src/core/hle/service/soc_u.h b/src/core/hle/service/soc_u.h
index d5590a683..2edf3b482 100644
--- a/src/core/hle/service/soc_u.h
+++ b/src/core/hle/service/soc_u.h
@@ -1,5 +1,5 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #pragma once
@@ -14,11 +14,7 @@ namespace SOC_U {
 class Interface : public Service::Interface {
 public:
     Interface();
-    ~Interface();
-    /**
-     * Gets the string port name used by CTROS for the service
-     * @return Port name of service
-     */
+
     std::string GetPortName() const override {
         return "soc:U";
     }
diff --git a/src/core/hle/service/srv.cpp b/src/core/hle/service/srv.cpp
index 0e7fa9e3b..25fab1a4f 100644
--- a/src/core/hle/service/srv.cpp
+++ b/src/core/hle/service/srv.cpp
@@ -1,5 +1,5 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #include "core/hle/hle.h"
@@ -14,17 +14,17 @@ namespace SRV {
 static Handle g_event_handle = 0;
 
 static void Initialize(Service::Interface* self) {
-    DEBUG_LOG(OSHLE, "called");
+    LOG_DEBUG(Service_SRV, "called");
 
-    u32* cmd_buff = Service::GetCommandBuffer();
+    u32* cmd_buff = Kernel::GetCommandBuffer();
 
     cmd_buff[1] = 0; // No error
 }
 
 static void GetProcSemaphore(Service::Interface* self) {
-    DEBUG_LOG(OSHLE, "called");
+    LOG_TRACE(Service_SRV, "called");
 
-    u32* cmd_buff = Service::GetCommandBuffer();
+    u32* cmd_buff = Kernel::GetCommandBuffer();
 
     // TODO(bunnei): Change to a semaphore once these have been implemented
     g_event_handle = Kernel::CreateEvent(RESETTYPE_ONESHOT, "SRV:Event");
@@ -36,16 +36,16 @@ static void GetProcSemaphore(Service::Interface* self) {
 
 static void GetServiceHandle(Service::Interface* self) {
     ResultCode res = RESULT_SUCCESS;
-    u32* cmd_buff = Service::GetCommandBuffer();
+    u32* cmd_buff = Kernel::GetCommandBuffer();
 
     std::string port_name = std::string((const char*)&cmd_buff[1], 0, Service::kMaxPortSize);
     Service::Interface* service = Service::g_manager->FetchFromPortName(port_name);
 
     if (nullptr != service) {
         cmd_buff[3] = service->GetHandle();
-        DEBUG_LOG(OSHLE, "called port=%s, handle=0x%08X", port_name.c_str(), cmd_buff[3]);
+        LOG_TRACE(Service_SRV, "called port=%s, handle=0x%08X", port_name.c_str(), cmd_buff[3]);
     } else {
-        ERROR_LOG(OSHLE, "(UNIMPLEMENTED) called port=%s", port_name.c_str());
+        LOG_ERROR(Service_SRV, "(UNIMPLEMENTED) called port=%s", port_name.c_str());
         res = UnimplementedFunction(ErrorModule::SRV);
     }
     cmd_buff[1] = res.raw;
@@ -68,7 +68,4 @@ Interface::Interface() {
     Register(FunctionTable, ARRAY_SIZE(FunctionTable));
 }
 
-Interface::~Interface() {
-}
-
 } // namespace
diff --git a/src/core/hle/service/srv.h b/src/core/hle/service/srv.h
index 6d5fe5048..653aba5cb 100644
--- a/src/core/hle/service/srv.h
+++ b/src/core/hle/service/srv.h
@@ -1,5 +1,5 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #include "core/hle/service/service.h"
@@ -11,21 +11,12 @@ namespace SRV {
 
 /// Interface to "srv:" service
 class Interface : public Service::Interface {
-
 public:
-
     Interface();
 
-    ~Interface();
-
-    /**
-     * Gets the string name used by CTROS for the service
-     * @return Port name of service
-     */
     std::string GetPortName() const override {
         return "srv:";
     }
-
 };
 
 } // namespace
diff --git a/src/core/hle/service/ssl_c.cpp b/src/core/hle/service/ssl_c.cpp
index 4aa660ecc..360516cdf 100644
--- a/src/core/hle/service/ssl_c.cpp
+++ b/src/core/hle/service/ssl_c.cpp
@@ -1,5 +1,5 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #include "common/log.h"
@@ -25,7 +25,4 @@ Interface::Interface() {
     Register(FunctionTable, ARRAY_SIZE(FunctionTable));
 }
 
-Interface::~Interface() {
-}
-
 } // namespace
diff --git a/src/core/hle/service/ssl_c.h b/src/core/hle/service/ssl_c.h
index 7b4e7fd8a..58e87c1cb 100644
--- a/src/core/hle/service/ssl_c.h
+++ b/src/core/hle/service/ssl_c.h
@@ -1,5 +1,5 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #pragma once
@@ -14,12 +14,8 @@ namespace SSL_C {
 class Interface : public Service::Interface {
 public:
     Interface();
-    ~Interface();
-    /**
-     * Gets the string port name used by CTROS for the service
-     * @return Port name of service
-     */
-    std::string GetPortName() const {
+
+    std::string GetPortName() const override {
         return "ssl:C";
     }
 };