diff --git a/higan/emulator/emulator.hpp b/higan/emulator/emulator.hpp
index 3c0ebc41..a096703f 100755
--- a/higan/emulator/emulator.hpp
+++ b/higan/emulator/emulator.hpp
@@ -3,7 +3,7 @@
 
 namespace Emulator {
   static const char Name[] = "higan";
-  static const char Version[] = "091.09";
+  static const char Version[] = "091.10";
   static const char Author[] = "byuu";
   static const char License[] = "GPLv3";
 }
diff --git a/higan/emulator/interface.hpp b/higan/emulator/interface.hpp
index 2cf11968..efef6592 100755
--- a/higan/emulator/interface.hpp
+++ b/higan/emulator/interface.hpp
@@ -56,6 +56,7 @@ struct Interface {
     virtual void audioSample(int16_t, int16_t) {}
     virtual int16_t inputPoll(unsigned, unsigned, unsigned) { return 0; }
     virtual unsigned dipSettings(const Markup::Node&) { return 0; }
+    virtual string scoreServer() { return ""; }
     virtual string path(unsigned) { return ""; }
     virtual void notify(const string &text) { print(text, "\n"); }
   } *bind;
@@ -69,6 +70,7 @@ struct Interface {
   void audioSample(int16_t lsample, int16_t rsample) { return bind->audioSample(lsample, rsample); }
   int16_t inputPoll(unsigned port, unsigned device, unsigned input) { return bind->inputPoll(port, device, input); }
   unsigned dipSettings(const Markup::Node &node) { return bind->dipSettings(node); }
+  string scoreServer() { return bind->scoreServer(); }
   string path(unsigned group) { return bind->path(group); }
   template<typename... Args> void notify(Args&... args) { return bind->notify({std::forward<Args>(args)...}); }
 
diff --git a/higan/nall/string/platform.hpp b/higan/nall/string/platform.hpp
index d7e701ee..5c44a313 100755
--- a/higan/nall/string/platform.hpp
+++ b/higan/nall/string/platform.hpp
@@ -6,12 +6,12 @@ string activepath() {
   string result;
   #ifdef _WIN32
   wchar_t path[PATH_MAX] = L"";
-  _wgetcwd(path, PATH_MAX);
+  auto unused = _wgetcwd(path, PATH_MAX);
   result = (const char*)utf8_t(path);
   result.transform("\\", "/");
   #else
   char path[PATH_MAX] = "";
-  getcwd(path, PATH_MAX);
+  auto unused = getcwd(path, PATH_MAX);
   result = path;
   #endif
   if(result.empty()) result = ".";
diff --git a/higan/sfc/Makefile b/higan/sfc/Makefile
index 81e59e8b..e0625b21 100755
--- a/higan/sfc/Makefile
+++ b/higan/sfc/Makefile
@@ -6,7 +6,7 @@ sfc_objects += sfc-sa1 sfc-superfx
 sfc_objects += sfc-armdsp sfc-hitachidsp sfc-necdsp
 sfc_objects += sfc-epsonrtc sfc-sharprtc
 sfc_objects += sfc-spc7110 sfc-sdd1 sfc-obc1
-sfc_objects += sfc-msu1
+sfc_objects += sfc-hsu1 sfc-msu1
 objects += $(sfc_objects)
 
 ifeq ($(profile),accuracy)
@@ -60,4 +60,5 @@ obj/sfc-spc7110.o    : $(sfc)/chip/spc7110/spc7110.cpp $(sfc)/chip/spc7110/*
 obj/sfc-sdd1.o       : $(sfc)/chip/sdd1/sdd1.cpp $(sfc)/chip/sdd1/*
 obj/sfc-obc1.o       : $(sfc)/chip/obc1/obc1.cpp $(sfc)/chip/obc1/*
 
+obj/sfc-hsu1.o       : $(sfc)/chip/hsu1/hsu1.cpp $(sfc)/chip/hsu1/*
 obj/sfc-msu1.o       : $(sfc)/chip/msu1/msu1.cpp $(sfc)/chip/msu1/*
diff --git a/higan/sfc/cartridge/cartridge.cpp b/higan/sfc/cartridge/cartridge.cpp
index 1a0370f8..75f58edf 100755
--- a/higan/sfc/cartridge/cartridge.cpp
+++ b/higan/sfc/cartridge/cartridge.cpp
@@ -26,6 +26,7 @@ void Cartridge::load(const string &manifest) {
   has_spc7110    = false;
   has_sdd1       = false;
   has_obc1       = false;
+  has_hsu1       = false;
   has_msu1       = false;
 
   this->manifest = manifest;
diff --git a/higan/sfc/cartridge/cartridge.hpp b/higan/sfc/cartridge/cartridge.hpp
index 33372d25..042a00ed 100755
--- a/higan/sfc/cartridge/cartridge.hpp
+++ b/higan/sfc/cartridge/cartridge.hpp
@@ -38,6 +38,7 @@ struct Cartridge : property<Cartridge> {
   readonly<bool> has_spc7110;
   readonly<bool> has_sdd1;
   readonly<bool> has_obc1;
+  readonly<bool> has_hsu1;
   readonly<bool> has_msu1;
 
   struct Mapping {
@@ -93,6 +94,7 @@ private:
   void parse_markup_spc7110(Markup::Node);
   void parse_markup_sdd1(Markup::Node);
   void parse_markup_obc1(Markup::Node);
+  void parse_markup_hsu1(Markup::Node);
   void parse_markup_msu1(Markup::Node);
 };
 
diff --git a/higan/sfc/cartridge/markup.cpp b/higan/sfc/cartridge/markup.cpp
index d8e456ed..8e5eae02 100755
--- a/higan/sfc/cartridge/markup.cpp
+++ b/higan/sfc/cartridge/markup.cpp
@@ -25,6 +25,7 @@ void Cartridge::parse_markup(const char *markup) {
   parse_markup_spc7110(board["spc7110"]);
   parse_markup_sdd1(board["sdd1"]);
   parse_markup_obc1(board["obc1"]);
+  parse_markup_hsu1(board["hsu1"]);
   parse_markup_msu1(board["msu1"]);
 }
 
@@ -564,6 +565,21 @@ void Cartridge::parse_markup_obc1(Markup::Node root) {
   }
 }
 
+void Cartridge::parse_markup_hsu1(Markup::Node root) {
+  if(root.exists() == false) return;
+  has_hsu1 = true;
+
+  for(auto &node : root) {
+    if(node.name != "map") continue;
+
+    if(node["id"].data == "io") {
+      Mapping m({&HSU1::read, &hsu1}, {&HSU1::write, &hsu1});
+      parse_markup_map(m, node);
+      mapping.append(m);
+    }
+  }
+}
+
 void Cartridge::parse_markup_msu1(Markup::Node root) {
   if(root.exists() == false) return;
   has_msu1 = true;
diff --git a/higan/sfc/chip/chip.hpp b/higan/sfc/chip/chip.hpp
index b5c12532..6d7637a7 100755
--- a/higan/sfc/chip/chip.hpp
+++ b/higan/sfc/chip/chip.hpp
@@ -23,6 +23,7 @@ struct Coprocessor : Thread {
 #include <sfc/chip/sdd1/sdd1.hpp>
 #include <sfc/chip/obc1/obc1.hpp>
 
+#include <sfc/chip/hsu1/hsu1.hpp>
 #include <sfc/chip/msu1/msu1.hpp>
 
 void Coprocessor::step(unsigned clocks) {
diff --git a/higan/sfc/chip/hsu1/hsu1.cpp b/higan/sfc/chip/hsu1/hsu1.cpp
new file mode 100644
index 00000000..0ccb9cf7
--- /dev/null
+++ b/higan/sfc/chip/hsu1/hsu1.cpp
@@ -0,0 +1,66 @@
+#include <sfc/sfc.hpp>
+
+#define HSU1_CPP
+namespace SuperFamicom {
+
+#include "serialization.cpp"
+HSU1 hsu1;
+
+void HSU1::init() {
+}
+
+void HSU1::load() {
+}
+
+void HSU1::unload() {
+}
+
+void HSU1::power() {
+}
+
+void HSU1::reset() {
+  packetlength = 0;
+}
+
+uint8 HSU1::read(unsigned addr) {
+  return cpu.regs.mdr;
+}
+
+void HSU1::write(unsigned addr, uint8 data) {
+  packet[packetlength] = data;
+  if(packetlength < sizeof(packet)) packetlength++;
+  if(data) return;
+
+  lstring side = interface->scoreServer().split<1>("@");
+  string username = side(0).split<1>(":")(0);
+  string password = side(0).split<1>(":")(1);
+  string servername = side(1).ltrim<1>("http://");
+  side = servername.split<1>("/");
+  string host = side(0).split<1>(":")(0);
+  string port = side(0).split<1>(":")(1);
+  string path = side(1);
+  if(port.empty()) port = "80";
+
+  http server;
+  if(server.connect(host, decimal(port))) {
+    string content = {
+      "username:", username, "\r\n",
+      "password:", password, "\r\n",
+      "sha256:", interface->sha256(), "\r\n",
+      "data:", (const char*)packet, "\r\n",
+      "emulator:bsnes\r\n"
+    };
+    string packet = {
+      "POST ", path, " HTTP/1.0\r\n",
+      "Host: ", host, "\r\n",
+      "Connection: close\r\n",
+      "Content-Type: text/plain; charset=utf-8\r\n",
+      "Content-Length: ", content.length(), "\r\n",
+      "\r\n",
+      content
+    };
+    server.send(packet);
+  }
+}
+
+}
diff --git a/higan/sfc/chip/hsu1/hsu1.hpp b/higan/sfc/chip/hsu1/hsu1.hpp
new file mode 100644
index 00000000..13e79cb8
--- /dev/null
+++ b/higan/sfc/chip/hsu1/hsu1.hpp
@@ -0,0 +1,18 @@
+struct HSU1 {
+  void init();
+  void load();
+  void unload();
+  void power();
+  void reset();
+
+  uint8 read(unsigned addr);
+  void write(unsigned addr, uint8 data);
+
+  void serialize(serializer&);
+
+private:
+  uint8 packet[512];
+  unsigned packetlength;
+};
+
+extern HSU1 hsu1;
diff --git a/higan/sfc/chip/hsu1/serialization.cpp b/higan/sfc/chip/hsu1/serialization.cpp
new file mode 100644
index 00000000..257a3f38
--- /dev/null
+++ b/higan/sfc/chip/hsu1/serialization.cpp
@@ -0,0 +1,8 @@
+#ifdef HSU1_CPP
+
+void HSU1::serialize(serializer &s) {
+  s.array(packet);
+  s.integer(packetlength);
+}
+
+#endif
diff --git a/higan/sfc/memory/memory-inline.hpp b/higan/sfc/memory/memory-inline.hpp
index c72d5bbc..e07bd098 100755
--- a/higan/sfc/memory/memory-inline.hpp
+++ b/higan/sfc/memory/memory-inline.hpp
@@ -73,12 +73,14 @@ unsigned Bus::mirror(unsigned addr, unsigned size) {
   return base;
 }
 
-unsigned Bus::recode(unsigned addr, unsigned mask) {
+unsigned Bus::reduce(unsigned addr, unsigned mask) {
+  unsigned result = 0, length = 0;
   for(unsigned n = 0; n < 24; n++) {
     unsigned bit = 1 << n;
-    if(mask & bit) addr = ((addr >> (n + 1)) << n) | (addr & (bit - 1));
+    if(mask & bit) continue;
+    result |= (bool)(addr & bit) << length++;
   }
-  return addr;
+  return result;
 }
 
 uint8 Bus::read(unsigned addr) {
diff --git a/higan/sfc/memory/memory.cpp b/higan/sfc/memory/memory.cpp
index f9de79d8..105059df 100755
--- a/higan/sfc/memory/memory.cpp
+++ b/higan/sfc/memory/memory.cpp
@@ -22,7 +22,7 @@ void Bus::map(
 
   for(unsigned bank = banklo; bank <= bankhi; bank++) {
     for(unsigned addr = addrlo; addr <= addrhi; addr++) {
-      unsigned offset = recode(bank << 16 | addr, mask);
+      unsigned offset = reduce(bank << 16 | addr, mask);
       if(size) offset = base + mirror(offset, size - base);
       lookup[bank << 16 | addr] = id;
       target[bank << 16 | addr] = offset;
diff --git a/higan/sfc/memory/memory.hpp b/higan/sfc/memory/memory.hpp
index b590262f..34e483cf 100755
--- a/higan/sfc/memory/memory.hpp
+++ b/higan/sfc/memory/memory.hpp
@@ -44,7 +44,7 @@ private:
 
 struct Bus {
   alwaysinline static unsigned mirror(unsigned addr, unsigned size);
-  alwaysinline static unsigned recode(unsigned addr, unsigned mask);
+  alwaysinline static unsigned reduce(unsigned addr, unsigned mask);
 
   alwaysinline uint8 read(unsigned addr);
   alwaysinline void write(unsigned addr, uint8 data);
diff --git a/higan/sfc/system/serialization.cpp b/higan/sfc/system/serialization.cpp
index 970164ca..66231c92 100755
--- a/higan/sfc/system/serialization.cpp
+++ b/higan/sfc/system/serialization.cpp
@@ -71,6 +71,7 @@ void System::serialize_all(serializer &s) {
   if(cartridge.has_spc7110()) spc7110.serialize(s);
   if(cartridge.has_sdd1()) sdd1.serialize(s);
   if(cartridge.has_obc1()) obc1.serialize(s);
+  if(cartridge.has_hsu1()) hsu1.serialize(s);
   if(cartridge.has_msu1()) msu1.serialize(s);
 }
 
diff --git a/higan/sfc/system/system.cpp b/higan/sfc/system/system.cpp
index 08afe2f7..4ec55718 100755
--- a/higan/sfc/system/system.cpp
+++ b/higan/sfc/system/system.cpp
@@ -80,6 +80,7 @@ void System::init() {
   spc7110.init();
   sdd1.init();
   obc1.init();
+  hsu1.init();
   msu1.init();
 
   video.init();
@@ -136,6 +137,7 @@ void System::load() {
   if(cartridge.has_spc7110()) spc7110.load();
   if(cartridge.has_sdd1()) sdd1.load();
   if(cartridge.has_obc1()) obc1.load();
+  if(cartridge.has_hsu1()) hsu1.load();
   if(cartridge.has_msu1()) msu1.load();
 
   serialize_init();
@@ -160,6 +162,7 @@ void System::unload() {
   if(cartridge.has_spc7110()) spc7110.unload();
   if(cartridge.has_sdd1()) sdd1.unload();
   if(cartridge.has_obc1()) obc1.unload();
+  if(cartridge.has_hsu1()) hsu1.unload();
   if(cartridge.has_msu1()) msu1.unload();
 }
 
@@ -187,6 +190,7 @@ void System::power() {
   if(cartridge.has_spc7110()) spc7110.power();
   if(cartridge.has_sdd1()) sdd1.power();
   if(cartridge.has_obc1()) obc1.power();
+  if(cartridge.has_hsu1()) hsu1.power();
   if(cartridge.has_msu1()) msu1.power();
 
   reset();
@@ -214,6 +218,7 @@ void System::reset() {
   if(cartridge.has_spc7110()) spc7110.reset();
   if(cartridge.has_sdd1()) sdd1.reset();
   if(cartridge.has_obc1()) obc1.reset();
+  if(cartridge.has_hsu1()) hsu1.reset();
   if(cartridge.has_msu1()) msu1.reset();
 
   if(cartridge.has_gb_slot()) cpu.coprocessors.append(&icd2);
diff --git a/higan/target-ethos/configuration/configuration.cpp b/higan/target-ethos/configuration/configuration.cpp
index 392e4eec..c4bae5fd 100755
--- a/higan/target-ethos/configuration/configuration.cpp
+++ b/higan/target-ethos/configuration/configuration.cpp
@@ -26,6 +26,9 @@ Configuration::Configuration() {
   append(input.focusAllow = false, "Input::Focus::AllowInput");
   append(timing.video = 60.0, "Timing::Video");
   append(timing.audio = 48000.0, "Timing::Audio");
+  append(highScores.hostname = "", "HighScores::Hostname");
+  append(highScores.username = "", "HighScores::Username");
+  append(highScores.password = "", "HighScores::Password");
   append(path.game = {userpath(), "Emulation/"}, "Path::Game");
   load();
 }
diff --git a/higan/target-ethos/configuration/configuration.hpp b/higan/target-ethos/configuration/configuration.hpp
index 8f20e3e9..af18b9af 100755
--- a/higan/target-ethos/configuration/configuration.hpp
+++ b/higan/target-ethos/configuration/configuration.hpp
@@ -35,6 +35,12 @@ struct Configuration : configuration {
     double audio;
   } timing;
 
+  struct HighScores {
+    string hostname;
+    string username;
+    string password;
+  } highScores;
+
   struct Path {
     string game;
   } path;
diff --git a/higan/target-ethos/ethos.cpp b/higan/target-ethos/ethos.cpp
index 49986a46..0e27a373 100755
--- a/higan/target-ethos/ethos.cpp
+++ b/higan/target-ethos/ethos.cpp
@@ -97,6 +97,7 @@ Application::Application(int argc, char **argv) {
   inputSettings = new InputSettings;
   hotkeySettings = new HotkeySettings;
   timingSettings = new TimingSettings;
+  scoreSettings = new ScoreSettings;
   driverSettings = new DriverSettings;
   settings = new Settings;
   cheatDatabase = new CheatDatabase;
diff --git a/higan/target-ethos/interface/interface.cpp b/higan/target-ethos/interface/interface.cpp
index a8ba194f..56941a63 100755
--- a/higan/target-ethos/interface/interface.cpp
+++ b/higan/target-ethos/interface/interface.cpp
@@ -111,6 +111,14 @@ unsigned Interface::dipSettings(const Markup::Node &node) {
   return dipSwitches->run(node);
 }
 
+string Interface::scoreServer() {
+  return string {
+    config->highScores.username, ":",
+    config->highScores.password, "@",
+    config->highScores.hostname
+  };
+}
+
 string Interface::path(unsigned group) {
   return utility->path(group);
 }
diff --git a/higan/target-ethos/interface/interface.hpp b/higan/target-ethos/interface/interface.hpp
index ba34746e..d5c0af55 100755
--- a/higan/target-ethos/interface/interface.hpp
+++ b/higan/target-ethos/interface/interface.hpp
@@ -7,6 +7,7 @@ struct Interface : Emulator::Interface::Bind {
   void audioSample(int16_t lsample, int16_t rsample);
   int16_t inputPoll(unsigned port, unsigned device, unsigned input);
   unsigned dipSettings(const Markup::Node &node);
+  string scoreServer();
   string path(unsigned group);
   void notify(const string &text);
 };
diff --git a/higan/target-ethos/settings/scores.cpp b/higan/target-ethos/settings/scores.cpp
new file mode 100644
index 00000000..56c26f0b
--- /dev/null
+++ b/higan/target-ethos/settings/scores.cpp
@@ -0,0 +1,32 @@
+ScoreSettings *scoreSettings = nullptr;
+
+ScoreSettings::ScoreSettings() {
+  title.setFont(application->titleFont);
+  title.setText("High Score Server Configuration");
+  hostLabel.setText("Hostname:");
+  userLabel.setText("Username:");
+  passLabel.setText("Password:");
+
+  unsigned width = max(
+    Font(application->normalFont).geometry("Hostname:").width,
+    Font(application->normalFont).geometry("Username:").width
+  );
+
+  append(title, {~0, 0}, 5);
+  append(serverLayout, {~0, 0}, 5);
+    serverLayout.append(hostLabel, {width, 0}, 5);
+    serverLayout.append(hostEdit, {~0, 0});
+  append(loginLayout, {~0, 0});
+    loginLayout.append(userLabel, {width, 0}, 5);
+    loginLayout.append(userEdit, {~0, 0}, 5);
+    loginLayout.append(passLabel, {0, 0}, 5);
+    loginLayout.append(passEdit, {~0, 0});
+
+  hostEdit.setText(config->highScores.hostname);
+  userEdit.setText(config->highScores.username);
+  passEdit.setText(config->highScores.password);
+
+  hostEdit.onChange = [&] { config->highScores.hostname = hostEdit.text(); };
+  userEdit.onChange = [&] { config->highScores.username = userEdit.text(); };
+  passEdit.onChange = [&] { config->highScores.password = passEdit.text(); };
+}
diff --git a/higan/target-ethos/settings/scores.hpp b/higan/target-ethos/settings/scores.hpp
new file mode 100644
index 00000000..43f46324
--- /dev/null
+++ b/higan/target-ethos/settings/scores.hpp
@@ -0,0 +1,15 @@
+struct ScoreSettings : SettingsLayout {
+  Label title;
+  HorizontalLayout serverLayout;
+    Label hostLabel;
+    LineEdit hostEdit;
+  HorizontalLayout loginLayout;
+    Label userLabel;
+    LineEdit userEdit;
+    Label passLabel;
+    LineEdit passEdit;
+
+  ScoreSettings();
+};
+
+extern ScoreSettings *scoreSettings;
diff --git a/higan/target-ethos/settings/settings.cpp b/higan/target-ethos/settings/settings.cpp
index 87b4545e..b9f6cd2f 100755
--- a/higan/target-ethos/settings/settings.cpp
+++ b/higan/target-ethos/settings/settings.cpp
@@ -4,6 +4,7 @@
 #include "input.cpp"
 #include "hotkey.cpp"
 #include "timing.cpp"
+#include "scores.cpp"
 #include "driver.cpp"
 Settings *settings = nullptr;
 
@@ -31,6 +32,7 @@ Settings::Settings() {
   panelList.append("Input");
   panelList.append("Hotkeys");
   panelList.append("Timing");
+  panelList.append("Scores");
   panelList.append("Driver");
 
   append(layout);
@@ -40,6 +42,7 @@ Settings::Settings() {
   append(*inputSettings);
   append(*hotkeySettings);
   append(*timingSettings);
+  append(*scoreSettings);
   append(*driverSettings);
 
   onClose = [&] {
@@ -59,6 +62,7 @@ void Settings::panelChanged() {
   inputSettings->setVisible(false);
   hotkeySettings->setVisible(false);
   timingSettings->setVisible(false);
+  scoreSettings->setVisible(false);
   driverSettings->setVisible(false);
   if(panelList.selected() == false) return;
 
@@ -68,6 +72,7 @@ void Settings::panelChanged() {
   case 2: return inputSettings->setVisible();
   case 3: return hotkeySettings->setVisible();
   case 4: return timingSettings->setVisible();
-  case 5: return driverSettings->setVisible();
+  case 5: return scoreSettings->setVisible();
+  case 6: return driverSettings->setVisible();
   }
 }
diff --git a/higan/target-ethos/settings/settings.hpp b/higan/target-ethos/settings/settings.hpp
index d436cdc1..3f6ceee1 100755
--- a/higan/target-ethos/settings/settings.hpp
+++ b/higan/target-ethos/settings/settings.hpp
@@ -11,6 +11,7 @@ struct SettingsLayout : HorizontalLayout {
 #include "input.hpp"
 #include "hotkey.hpp"
 #include "timing.hpp"
+#include "scores.hpp"
 #include "driver.hpp"
 
 struct Settings : Window {