diff --git a/bsnes/Makefile b/bsnes/Makefile
index 4af87086..0ae818e5 100755
--- a/bsnes/Makefile
+++ b/bsnes/Makefile
@@ -1,7 +1,7 @@
 include nall/Makefile
 snes := snes
 gameboy := gameboy
-profile := accuracy
+profile := compatibility
 ui := ui
 
 # debugger
diff --git a/bsnes/phoenix/core/layout/vertical-layout.cpp b/bsnes/phoenix/core/layout/vertical-layout.cpp
index 373c8249..e3185001 100755
--- a/bsnes/phoenix/core/layout/vertical-layout.cpp
+++ b/bsnes/phoenix/core/layout/vertical-layout.cpp
@@ -69,6 +69,10 @@ Geometry VerticalLayout::minimumLayoutGeometry() {
   return { 0, 0, maximumWidth ? MaximumSize : margin * 2 + width, maximumHeight ? MaximumSize : margin * 2 + height };
 }
 
+void VerticalLayout::reset() {
+  children.reset();
+}
+
 void VerticalLayout::setGeometry(const Geometry &containerGeometry) {
   auto children = this->children;
   foreach(child, children) {
diff --git a/bsnes/phoenix/core/layout/vertical-layout.hpp b/bsnes/phoenix/core/layout/vertical-layout.hpp
index a280c269..fb78247e 100755
--- a/bsnes/phoenix/core/layout/vertical-layout.hpp
+++ b/bsnes/phoenix/core/layout/vertical-layout.hpp
@@ -5,6 +5,7 @@ struct VerticalLayout : public Layout {
   void append(Widget &widget, unsigned width, unsigned height, unsigned spacing = 0);
   Geometry minimumGeometry();
   Geometry minimumLayoutGeometry();
+  void reset();
   void setGeometry(const Geometry &geometry);
   void setMargin(unsigned margin);
   void setParent(Window &parent);
diff --git a/bsnes/snes/Makefile b/bsnes/snes/Makefile
index d9c24d55..c0ee05bb 100755
--- a/bsnes/snes/Makefile
+++ b/bsnes/snes/Makefile
@@ -2,7 +2,7 @@ snes_objects := snes-system
 snes_objects += snes-cartridge snes-cheat
 snes_objects += snes-memory snes-cpucore snes-smpcore
 snes_objects += snes-cpu snes-smp snes-dsp snes-ppu
-snes_objects += snes-icd2 snes-superfx snes-sa1 snes-necdsp
+snes_objects += snes-nss snes-icd2 snes-superfx snes-sa1 snes-necdsp
 snes_objects += snes-bsx snes-srtc snes-sdd1 snes-spc7110 snes-cx4
 snes_objects += snes-obc1 snes-st0018 snes-sufamiturbo
 snes_objects += snes-msu1 snes-serial
@@ -39,6 +39,7 @@ obj/snes-ppu.o      : $(snesppu)/ppu.cpp $(call rwildcard,$(snesppu)/)
 obj/snes-cartridge.o: $(snes)/cartridge/cartridge.cpp $(snes)/cartridge/*
 obj/snes-cheat.o    : $(snes)/cheat/cheat.cpp $(snes)/cheat/*
 
+obj/snes-nss.o        : $(snes)/chip/nss/nss.cpp $(call rwildcard,$(snes)/chip/nss/)
 obj/snes-icd2.o       : $(snes)/chip/icd2/icd2.cpp $(call rwildcard,$(snes)/chip/icd2/)
 obj/snes-superfx.o    : $(snes)/chip/superfx/superfx.cpp $(call rwildcard,$(snes)/chip/superfx/)
 obj/snes-sa1.o        : $(snes)/chip/sa1/sa1.cpp $(call rwildcard,$(snes)/chip/sa1/)
diff --git a/bsnes/snes/alt/smp/smp.cpp b/bsnes/snes/alt/smp/smp.cpp
index a309db05..08a67ef0 100755
--- a/bsnes/snes/alt/smp/smp.cpp
+++ b/bsnes/snes/alt/smp/smp.cpp
@@ -1,4 +1,4 @@
-//#define CYCLE_ACCURATE
+#define CYCLE_ACCURATE
 
 #include <snes/snes.hpp>
 
diff --git a/bsnes/snes/cartridge/cartridge.cpp b/bsnes/snes/cartridge/cartridge.cpp
index db47d958..4d2db951 100755
--- a/bsnes/snes/cartridge/cartridge.cpp
+++ b/bsnes/snes/cartridge/cartridge.cpp
@@ -17,6 +17,7 @@ void Cartridge::load(Mode cartridge_mode, const lstring &xml_list) {
   ram_size = 0;
 
   has_bsx_slot   = false;
+  has_nss_dip    = false;
   has_superfx    = false;
   has_sa1        = false;
   has_necdsp     = false;
diff --git a/bsnes/snes/cartridge/cartridge.hpp b/bsnes/snes/cartridge/cartridge.hpp
index 5678e028..9817ac41 100755
--- a/bsnes/snes/cartridge/cartridge.hpp
+++ b/bsnes/snes/cartridge/cartridge.hpp
@@ -34,6 +34,7 @@ public:
   readonly<unsigned> ram_size;
 
   readonly<bool> has_bsx_slot;
+  readonly<bool> has_nss_dip;
   readonly<bool> has_superfx;
   readonly<bool> has_sa1;
   readonly<bool> has_necdsp;
@@ -75,6 +76,13 @@ public:
   };
   linear_vector<Mapping> mapping;
 
+  struct Information {
+    struct NSS {
+      lstring setting;
+      lstring option[16];
+    } nss;
+  } information;
+
   void load(Mode, const lstring&);
   void unload();
 
@@ -91,6 +99,7 @@ private:
 
   void xml_parse_rom(xml_element&);
   void xml_parse_ram(xml_element&);
+  void xml_parse_nss(xml_element&);
   void xml_parse_icd2(xml_element&);
   void xml_parse_superfx(xml_element&);
   void xml_parse_sa1(xml_element&);
diff --git a/bsnes/snes/cartridge/xml.cpp b/bsnes/snes/cartridge/xml.cpp
index 24731888..59801eff 100755
--- a/bsnes/snes/cartridge/xml.cpp
+++ b/bsnes/snes/cartridge/xml.cpp
@@ -17,6 +17,9 @@ void Cartridge::parse_xml(const lstring &list) {
 }
 
 void Cartridge::parse_xml_cartridge(const char *data) {
+  //reset cartridge information
+  information.nss.setting.reset();
+
   xml_element document = xml_parse(data);
   if(document.element.size() == 0) return;
 
@@ -32,6 +35,7 @@ void Cartridge::parse_xml_cartridge(const char *data) {
       foreach(node, head.element) {
         if(node.name == "rom") xml_parse_rom(node);
         if(node.name == "ram") xml_parse_ram(node);
+        if(node.name == "nss") xml_parse_nss(node);
         if(node.name == "icd2") xml_parse_icd2(node);
         if(node.name == "superfx") xml_parse_superfx(node);
         if(node.name == "sa1") xml_parse_sa1(node);
@@ -97,6 +101,33 @@ void Cartridge::xml_parse_ram(xml_element &root) {
   }
 }
 
+void Cartridge::xml_parse_nss(xml_element &root) {
+  has_nss_dip = true;
+
+  foreach(node, root.element) {
+    if(node.name == "setting") {
+      unsigned number = information.nss.setting.size();
+      if(number >= 16) break;  //more than 16 DIP switches is not possible
+
+      information.nss.option[number].reset();
+      foreach(attr, node.attribute) {
+        if(attr.name == "name") {
+          information.nss.setting[number] = attr.parse();
+        }
+      }
+      foreach(leaf, node.element) {
+        string name;
+        unsigned value = 0x0000;
+        foreach(attr, leaf.attribute) {
+          if(attr.name == "name") name = attr.parse();
+          if(attr.name == "value") value = (uint16)hex(attr.content);
+        }
+        information.nss.option[number].append({ hex<4>(value), ":", name });
+      }
+    }
+  }
+}
+
 void Cartridge::xml_parse_icd2(xml_element &root) {
   if(mode != Mode::SuperGameBoy) return;
   icd2.revision = 1;
diff --git a/bsnes/snes/chip/chip.hpp b/bsnes/snes/chip/chip.hpp
index c6a61700..fda6775f 100755
--- a/bsnes/snes/chip/chip.hpp
+++ b/bsnes/snes/chip/chip.hpp
@@ -3,6 +3,7 @@ struct Coprocessor : Processor {
   alwaysinline void synchronize_cpu();
 };
 
+#include <snes/chip/nss/nss.hpp>
 #include <snes/chip/icd2/icd2.hpp>
 #include <snes/chip/superfx/superfx.hpp>
 #include <snes/chip/sa1/sa1.hpp>
diff --git a/bsnes/snes/chip/nss/nss.cpp b/bsnes/snes/chip/nss/nss.cpp
new file mode 100755
index 00000000..964973d0
--- /dev/null
+++ b/bsnes/snes/chip/nss/nss.cpp
@@ -0,0 +1,39 @@
+#include <snes/snes.hpp>
+
+#define NSS_CPP
+namespace SNES {
+
+NSS nss;
+
+void NSS::init() {
+}
+
+void NSS::load() {
+  dip = 0x0000;
+  bus.map(Bus::MapMode::Direct, 0x00, 0x3f, 0x4100, 0x4101, { &NSS::read, this }, { &NSS::write, this });
+  bus.map(Bus::MapMode::Direct, 0x80, 0xbf, 0x4100, 0x4101, { &NSS::read, this }, { &NSS::write, this });
+}
+
+void NSS::unload() {
+}
+
+void NSS::power() {
+}
+
+void NSS::reset() {
+}
+
+void NSS::set_dip(uint16 dip) {
+  this->dip = dip;
+}
+
+uint8 NSS::read(unsigned addr) {
+  if((addr & 0x40ffff) == 0x004100) return dip >> 0;
+  if((addr & 0x40ffff) == 0x004101) return dip >> 8;
+  return cpu.regs.mdr;
+}
+
+void NSS::write(unsigned addr, uint8 data) {
+}
+
+}
diff --git a/bsnes/snes/chip/nss/nss.hpp b/bsnes/snes/chip/nss/nss.hpp
new file mode 100755
index 00000000..3cab46da
--- /dev/null
+++ b/bsnes/snes/chip/nss/nss.hpp
@@ -0,0 +1,17 @@
+class NSS {
+public:
+  void init();
+  void load();
+  void unload();
+  void power();
+  void reset();
+
+  void set_dip(uint16 dip);
+  uint8 read(unsigned addr);
+  void write(unsigned addr, uint8 data);
+
+private:
+  uint16 dip;
+};
+
+extern NSS nss;
diff --git a/bsnes/snes/snes.hpp b/bsnes/snes/snes.hpp
index 0cafa6c0..d4991082 100755
--- a/bsnes/snes/snes.hpp
+++ b/bsnes/snes/snes.hpp
@@ -1,7 +1,7 @@
 namespace SNES {
   namespace Info {
     static const char Name[] = "bsnes";
-    static const char Version[] = "078.04";
+    static const char Version[] = "078.05";
     static const unsigned SerializerVersion = 20;
   }
 }
diff --git a/bsnes/snes/system/system.cpp b/bsnes/snes/system/system.cpp
index 56316e55..2060160f 100755
--- a/bsnes/snes/system/system.cpp
+++ b/bsnes/snes/system/system.cpp
@@ -70,6 +70,7 @@ void System::init(Interface *interface_) {
   assert(interface != 0);
 
   icd2.init();
+  nss.init();
   superfx.init();
   sa1.init();
   necdsp.init();
@@ -111,6 +112,7 @@ void System::load() {
   if(cartridge.mode() == Cartridge::Mode::SuperGameBoy) icd2.load();
 
   if(cartridge.has_bsx_slot()) bsxflash.load();
+  if(cartridge.has_nss_dip()) nss.load();
   if(cartridge.has_superfx()) superfx.load();
   if(cartridge.has_sa1()) sa1.load();
   if(cartridge.has_necdsp()) necdsp.load();
@@ -134,6 +136,7 @@ void System::unload() {
   if(cartridge.mode() == Cartridge::Mode::SuperGameBoy) icd2.unload();
 
   if(cartridge.has_bsx_slot()) bsxflash.unload();
+  if(cartridge.has_nss_dip()) nss.unload();
   if(cartridge.has_superfx()) superfx.unload();
   if(cartridge.has_sa1()) sa1.unload();
   if(cartridge.has_necdsp()) necdsp.unload();
@@ -169,6 +172,7 @@ void System::power() {
   if(cartridge.mode() == Cartridge::Mode::SuperGameBoy) icd2.power();
 
   if(cartridge.has_bsx_slot()) bsxflash.power();
+  if(cartridge.has_nss_dip()) nss.power();
   if(cartridge.has_superfx()) superfx.power();
   if(cartridge.has_sa1()) sa1.power();
   if(cartridge.has_necdsp()) necdsp.power();
@@ -204,6 +208,7 @@ void System::reset() {
   if(cartridge.mode() == Cartridge::Mode::SuperGameBoy) icd2.reset();
 
   if(cartridge.has_bsx_slot()) bsxflash.reset();
+  if(cartridge.has_nss_dip()) nss.reset();
   if(cartridge.has_superfx()) superfx.reset();
   if(cartridge.has_sa1()) sa1.reset();
   if(cartridge.has_necdsp()) necdsp.reset();
diff --git a/bsnes/ui/general/general.cpp b/bsnes/ui/general/general.cpp
index 50e7f351..bf5f4061 100755
--- a/bsnes/ui/general/general.cpp
+++ b/bsnes/ui/general/general.cpp
@@ -2,3 +2,4 @@
 #include "main-window.cpp"
 #include "file-browser.cpp"
 #include "slot-loader.cpp"
+#include "nss-dip-window.cpp"
diff --git a/bsnes/ui/general/general.hpp b/bsnes/ui/general/general.hpp
index a0f43444..350af6e3 100755
--- a/bsnes/ui/general/general.hpp
+++ b/bsnes/ui/general/general.hpp
@@ -1,3 +1,4 @@
 #include "main-window.hpp"
 #include "file-browser.hpp"
 #include "slot-loader.hpp"
+#include "nss-dip-window.hpp"
diff --git a/bsnes/ui/general/nss-dip-window.cpp b/bsnes/ui/general/nss-dip-window.cpp
new file mode 100755
index 00000000..70aa8454
--- /dev/null
+++ b/bsnes/ui/general/nss-dip-window.cpp
@@ -0,0 +1,91 @@
+NSSDipWindow nssDipWindow;
+
+void NSSDipWindow::create() {
+  application.addWindow(this, "NSSDipWindow", "160,160");
+  setTitle("NSS DIP Settings");
+
+  for(unsigned n = 0; n < 16; n++) {
+    dipName[n].setText("Unused");
+    dipName[n].setVisible(false);
+    layout.append(dipName[n], { 0, 0, 16, 16 });
+
+    dipValue[n].setVisible(false);
+    layout.append(dipValue[n], { 0, 0, 16, 16 });
+  }
+
+  loadButton.setText("Load Cartridge");
+  layout.append(loadButton, { 0, 0, 16, 16 });
+
+  append(layout);
+  setResizable(false);
+  setGeometry({ 0, 0, 400, 240 });
+
+  onClose = loadButton.onTick = { &NSSDipWindow::assign, this };
+}
+
+void NSSDipWindow::select() {
+  setVisible(false);
+
+  for(unsigned n = 0; n < 16; n++) {
+    dipName[n].setText({ "DIP #", 1 + n, ":" });
+    dipName[n].setVisible(false);
+    dipValue[n].reset();
+    dipValue[n].setVisible(false);
+  }
+
+  unsigned dipCount = SNES::cartridge.information.nss.setting.size();
+
+  for(unsigned n = 0; n < dipCount; n++) {
+    dipName[n].setText({ "DIP #", 1 + n, ": ", SNES::cartridge.information.nss.setting[n] });
+    for(unsigned z = 0; z < SNES::cartridge.information.nss.option[n].size(); z++) {
+      lstring part;
+      part.split<1>(":", SNES::cartridge.information.nss.option[n][z]);
+      dipValue[n].append(part[1]);
+    }
+  }
+
+  unsigned maximumLabelWidth =  50;
+  unsigned maximumComboWidth = 100;
+  unsigned controlHeight = dipValue[0].minimumGeometry().height;
+
+  for(unsigned n = 0; n < dipCount; n++) {
+    maximumLabelWidth = max(maximumLabelWidth, dipName[n].minimumGeometry().width);
+    maximumComboWidth = max(maximumComboWidth, dipValue[n].minimumGeometry().width);
+  }
+
+  for(unsigned n = 0; n < dipCount; n++) {
+    dipName[n].setGeometry({ 5, 5 + (controlHeight + 5) * n, maximumLabelWidth, controlHeight });
+    dipName[n].setVisible(true);
+
+    dipValue[n].setGeometry({ 5 + maximumLabelWidth + 5, 5 + (controlHeight + 5) * n, maximumComboWidth, controlHeight });
+    dipValue[n].setVisible(true);
+  }
+
+  unsigned buttonWidth  = loadButton.minimumGeometry().width;
+  unsigned buttonHeight = loadButton.minimumGeometry().height;
+
+  unsigned windowWidth  = 5 + maximumLabelWidth + 5 + maximumComboWidth + 5;
+  unsigned windowHeight = 5 + (controlHeight + 5) * dipCount + buttonHeight + 5;
+
+  loadButton.setGeometry({ windowWidth - 5 - buttonWidth, windowHeight - 5 - buttonHeight, buttonWidth, buttonHeight });
+
+  setGeometry({ geometry().x, geometry().y, windowWidth, windowHeight });
+  setVisible(true);
+  loadButton.setFocused();
+}
+
+void NSSDipWindow::assign() {
+  unsigned dip = 0;
+
+  for(unsigned n = 0; n < SNES::cartridge.information.nss.setting.size(); n++) {
+    unsigned position = dipValue[n].selection();
+    lstring part;
+    part.split<1>(":", SNES::cartridge.information.nss.option[n][position]);
+    dip |= hex(part[0]);
+  }
+
+  SNES::nss.set_dip(dip);
+
+  setVisible(false);
+  application.pause = false;
+}
diff --git a/bsnes/ui/general/nss-dip-window.hpp b/bsnes/ui/general/nss-dip-window.hpp
new file mode 100755
index 00000000..885eabf5
--- /dev/null
+++ b/bsnes/ui/general/nss-dip-window.hpp
@@ -0,0 +1,12 @@
+struct NSSDipWindow : TopLevelWindow {
+  FixedLayout layout;
+  Label dipName[16];
+  ComboBox dipValue[16];
+  Button loadButton;
+
+  void create();
+  void select();
+  void assign();
+};
+
+extern NSSDipWindow nssDipWindow;
diff --git a/bsnes/ui/main.cpp b/bsnes/ui/main.cpp
index 06c588c5..444b7ffc 100755
--- a/bsnes/ui/main.cpp
+++ b/bsnes/ui/main.cpp
@@ -54,6 +54,7 @@ void Application::main(int argc, char **argv) {
   fileBrowser.create();
   singleSlotLoader.create();
   doubleSlotLoader.create();
+  nssDipWindow.create();
   videoSettings.create();
   audioSettings.create();
   inputSettings.create();
diff --git a/bsnes/ui/utility/utility.cpp b/bsnes/ui/utility/utility.cpp
index bd799a60..ed08475f 100755
--- a/bsnes/ui/utility/utility.cpp
+++ b/bsnes/ui/utility/utility.cpp
@@ -158,6 +158,12 @@ void Utility::cartridgeLoaded() {
     "Loaded ", notdir(cartridge.baseName),
     cartridge.patchApplied ? ", and applied UPS patch" : ""
   });
+
+  //NSS
+  if(SNES::cartridge.has_nss_dip()) {
+    nssDipWindow.select();
+    application.pause = true;
+  }
 }
 
 void Utility::cartridgeUnloaded() {