diff --git a/external/VSRTL b/external/VSRTL
index a7f17baf2..8cb60adf6 160000
--- a/external/VSRTL
+++ b/external/VSRTL
@@ -1 +1 @@
-Subproject commit a7f17baf2f5cee4a9946d987a74348ab75375d25
+Subproject commit 8cb60adf6f197638fe598ba232619c68aa601a38
diff --git a/src/assembler/assembler.h b/src/assembler/assembler.h
index 2f219bba0..8d8c4048e 100644
--- a/src/assembler/assembler.h
+++ b/src/assembler/assembler.h
@@ -176,7 +176,7 @@ class Assembler : public AssemblerBase {
     // Join tokens
     QString joinedLine;
     const auto tokens = std::get<LineTokens>(tokensVar);
-    for (const auto &token : qAsConst(tokens)) {
+    for (const auto &token : std::as_const(tokens)) {
       joinedLine += token + " ";
     }
     joinedLine.chop(1); // remove trailing ' '
diff --git a/src/assembler/gnudirectives.cpp b/src/assembler/gnudirectives.cpp
index 6d75ea483..55bd9044a 100644
--- a/src/assembler/gnudirectives.cpp
+++ b/src/assembler/gnudirectives.cpp
@@ -11,7 +11,7 @@ static QString numTokensError(unsigned expected, const TokenizedSrcLine &line) {
       std::to_string(line.tokens.size()) + "[");
   for (auto t : llvm::enumerate(line.tokens)) {
     err += t.value();
-    if (t.index() < (line.tokens.size() - 1))
+    if (static_cast<int64_t>(t.index()) < (line.tokens.size() - 1))
       err += ", ";
   };
   err += "].";
diff --git a/src/cachesim/cacheplotview.cpp b/src/cachesim/cacheplotview.cpp
index c424ad91e..45a4f4cee 100644
--- a/src/cachesim/cacheplotview.cpp
+++ b/src/cachesim/cacheplotview.cpp
@@ -92,14 +92,14 @@ QPixmap CachePlotView::getPlotPixmap() {
     itemsToHide << marker->marker;
   }
 
-  for (const auto &i : qAsConst(itemsToHide)) {
+  for (const auto &i : std::as_const(itemsToHide)) {
     if (i)
       i->hide();
   }
 
   QPixmap p = grab();
 
-  for (const auto &i : qAsConst(itemsToHide)) {
+  for (const auto &i : std::as_const(itemsToHide)) {
     if (i)
       i->show();
   }
diff --git a/src/cachesim/cacheplotwidget.cpp b/src/cachesim/cacheplotwidget.cpp
index 475028e74..b12c873a4 100644
--- a/src/cachesim/cacheplotwidget.cpp
+++ b/src/cachesim/cacheplotwidget.cpp
@@ -344,7 +344,7 @@ CachePlotWidget::gatherData(unsigned fromCycle) const {
 
 void resample(QLineSeries *series, unsigned target, double &step) {
   QVector<QPointF> newPoints;
-  const auto &oldPoints = series->pointsVector();
+  const auto &oldPoints = series->points();
   step = (oldPoints.last().x() / static_cast<double>(target)) *
          2; // *2 to account for steps
   newPoints.reserve(target);
@@ -356,7 +356,7 @@ void resample(QLineSeries *series, unsigned target, double &step) {
   // sanity check
   QPointF plast = QPointF(0, 0);
   bool first = true;
-  for (const auto &p : qAsConst(newPoints)) {
+  for (const auto &p : std::as_const(newPoints)) {
     if (!first) {
       Q_ASSERT(p.x() - plast.x() < step * 1.1);
       first = false;
@@ -426,8 +426,8 @@ void CachePlotWidget::updateRatioPlot() {
   QList<QPointF> newPoints;
   QList<QPointF> newWindowPoints;
   QPointF lastPoint;
-  if (m_series->pointsVector().size() > 0) {
-    lastPoint = m_series->pointsVector().constLast();
+  if (m_series->points().size() > 0) {
+    lastPoint = m_series->points().constLast();
   } else {
     lastPoint = QPointF(-1, 0);
   }
@@ -489,7 +489,7 @@ void CachePlotWidget::updateRatioPlot() {
   // points, and we resample at a 2x ratio
   const int maxPoints =
       RipesSettings::value(RIPES_SETTING_CACHE_MAXPOINTS).toInt() * 2 * 2;
-  if (m_series->pointsVector().size() >= maxPoints) {
+  if (m_series->points().size() >= maxPoints) {
     resample(m_series, maxPoints / 2, m_xStep);
   }
 
diff --git a/src/cachesim/cacheview.cpp b/src/cachesim/cacheview.cpp
index 74d34b8f3..a2dac7196 100644
--- a/src/cachesim/cacheview.cpp
+++ b/src/cachesim/cacheview.cpp
@@ -21,7 +21,7 @@ void CacheView::mousePressEvent(QMouseEvent *event) {
   // and emit a signal indicating that the address was selected through the
   // cache
   const auto viewItems = items(event->pos());
-  for (const auto &item : qAsConst(viewItems)) {
+  for (const auto &item : std::as_const(viewItems)) {
     if (auto *textItem = dynamic_cast<QGraphicsSimpleTextItem *>(item)) {
       const QVariant userData = textItem->data(Qt::UserRole);
       if (userData.isValid()) {
diff --git a/src/ccmanager.cpp b/src/ccmanager.cpp
index c852f2cf1..84a0df879 100644
--- a/src/ccmanager.cpp
+++ b/src/ccmanager.cpp
@@ -20,7 +20,7 @@ const static QString s_testprogram = "int main() { return 0; }";
 QString indentString(const QString &string, int indent) {
   auto subStrings = string.split("\n");
   auto indentedStrings = QStringList();
-  for (const auto &str : qAsConst(subStrings)) {
+  for (const auto &str : std::as_const(subStrings)) {
     indentedStrings << QString(" ").repeated(indent) + str;
   }
   return indentedStrings.join("\n");
diff --git a/src/cli/clioptions.cpp b/src/cli/clioptions.cpp
index 4cc909962..80f506248 100644
--- a/src/cli/clioptions.cpp
+++ b/src/cli/clioptions.cpp
@@ -111,7 +111,7 @@ bool parseCLIOptions(QCommandLineParser &parser, QString &errorMessage,
                     .isaInfo()
                     .supportedExtensions;
 
-    for (auto &ext : qAsConst(options.isaExtensions)) {
+    for (auto &ext : std::as_const(options.isaExtensions)) {
       if (!exts.contains(ext)) {
         errorMessage =
             "Invalid ISA extension '" + ext + "' specified (--isaexts).";
diff --git a/src/editor/csyntaxhighlighter.cpp b/src/editor/csyntaxhighlighter.cpp
index 22f562d79..d066ae376 100644
--- a/src/editor/csyntaxhighlighter.cpp
+++ b/src/editor/csyntaxhighlighter.cpp
@@ -76,7 +76,7 @@ CSyntaxHighlighter::CSyntaxHighlighter(
 } // namespace Ripes
 
 void CSyntaxHighlighter::syntaxHighlightBlock(const QString &text) {
-  for (const HighlightingRule &rule : qAsConst(highlightingRules)) {
+  for (const HighlightingRule &rule : std::as_const(highlightingRules)) {
     QRegularExpressionMatchIterator matchIterator =
         rule.pattern.globalMatch(text);
     while (matchIterator.hasNext()) {
diff --git a/src/editor/rvsyntaxhighlighter.cpp b/src/editor/rvsyntaxhighlighter.cpp
index 0c6a769ce..0df5112f6 100644
--- a/src/editor/rvsyntaxhighlighter.cpp
+++ b/src/editor/rvsyntaxhighlighter.cpp
@@ -24,7 +24,7 @@ RVSyntaxHighlighter::RVSyntaxHighlighter(
                    << "\\bgp\\b"
                    << "\\btp\\b"
                    << "\\bfp\\b";
-  for (const auto &pattern : qAsConst(registerPatterns)) {
+  for (const auto &pattern : std::as_const(registerPatterns)) {
     rule.pattern = QRegularExpression(pattern);
     rule.format = registerFormat;
     m_highlightingRules.append(rule);
@@ -70,7 +70,7 @@ RVSyntaxHighlighter::RVSyntaxHighlighter(
 }
 
 void RVSyntaxHighlighter::syntaxHighlightBlock(const QString &text) {
-  for (const HighlightingRule &rule : qAsConst(m_highlightingRules)) {
+  for (const HighlightingRule &rule : std::as_const(m_highlightingRules)) {
     QRegularExpressionMatchIterator matchIterator =
         rule.pattern.globalMatch(text);
     while (matchIterator.hasNext()) {
diff --git a/src/edittab.cpp b/src/edittab.cpp
index b433cb4e4..34b4e2648 100644
--- a/src/edittab.cpp
+++ b/src/edittab.cpp
@@ -20,6 +20,7 @@
 #include "processorhandler.h"
 #include "ripessettings.h"
 #include "symbolnavigator.h"
+#include "wasmSupport.h"
 
 namespace Ripes {
 
@@ -87,6 +88,8 @@ EditTab::EditTab(QToolBar *toolbar, QWidget *parent)
           &EditTab::sourceTypeChanged);
   connect(m_ui->setCInput, &QRadioButton::toggled, m_buildAction,
           &QAction::setEnabled);
+  // C compiler is not yet supported on WASM.
+  disableIfWasm(m_ui->setCInput);
 
   // Ensure that changes to the current compiler path will disable C input, if
   // the compiler is invalid
diff --git a/src/flowlayout.cpp b/src/flowlayout.cpp
index 65965cdb1..32d35d3aa 100644
--- a/src/flowlayout.cpp
+++ b/src/flowlayout.cpp
@@ -132,7 +132,7 @@ QSize FlowLayout::sizeHint() const { return minimumSize(); }
 
 QSize FlowLayout::minimumSize() const {
   QSize size;
-  for (const QLayoutItem *item : qAsConst(itemList))
+  for (const QLayoutItem *item : std::as_const(itemList))
     size = size.expandedTo(item->minimumSize());
 
   const QMargins margins = contentsMargins();
@@ -153,7 +153,7 @@ int FlowLayout::doLayout(const QRect &rect, bool testOnly) const {
   //! [9]
 
   //! [10]
-  for (QLayoutItem *item : qAsConst(itemList)) {
+  for (QLayoutItem *item : std::as_const(itemList)) {
     int spaceX = horizontalSpacing();
     int spaceY = verticalSpacing();
     if (spaceX == -1)
diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
index 879a54de3..95120eacb 100644
--- a/src/mainwindow.cpp
+++ b/src/mainwindow.cpp
@@ -15,6 +15,7 @@
 #include "syscall/syscallviewer.h"
 #include "syscall/systemio.h"
 #include "version/version.h"
+#include "wasmSupport.h"
 
 #include "fancytabbar/fancytabbar.h"
 
@@ -204,7 +205,6 @@ void MainWindow::setupMenus() {
   connect(loadAction, &QAction::triggered, this,
           [=] { this->loadFileTriggered(); });
   m_ui->menuFile->addAction(loadAction);
-
   m_ui->menuFile->addSeparator();
 
   auto *examplesMenu = m_ui->menuFile->addMenu("Load Example...");
@@ -231,7 +231,6 @@ void MainWindow::setupMenus() {
           &EditTab::editorStateChanged, saveAction,
           [saveAsAction](bool enabled) { saveAsAction->setEnabled(enabled); });
   m_ui->menuFile->addAction(saveAsAction);
-
   m_ui->menuFile->addSeparator();
 
   const QIcon exitIcon = QIcon(":/icons/cancel.svg");
@@ -246,6 +245,9 @@ void MainWindow::setupMenus() {
   m_ui->menuView->addAction(
       static_cast<ProcessorTab *>(m_tabWidgets.at(ProcessorTabID).tab)
           ->m_displayValuesAction);
+
+  // File I/O is not yet supported on WASM due to sandboxing.
+  disableIfWasm(QList{loadAction, saveAction, saveAsAction, exitAction});
 }
 
 MainWindow::~MainWindow() { delete m_ui; }
@@ -360,8 +362,8 @@ void MainWindow::loadFileTriggered() {
 }
 
 void MainWindow::wiki() {
-  QDesktopServices::openUrl(
-      QUrl(QString("https://github.com/mortbopet/Ripes/blob/master/docs/README.md")));
+  QDesktopServices::openUrl(QUrl(QString(
+      "https://github.com/mortbopet/Ripes/blob/master/docs/README.md")));
 }
 
 void MainWindow::version() {
diff --git a/src/processmanager.h b/src/processmanager.h
index 129026443..028f7d522 100644
--- a/src/processmanager.h
+++ b/src/processmanager.h
@@ -154,8 +154,8 @@ class ProcessManager {
   static bool hasValidProgram() { return false; }
   static const QString &program() { return get().m_programPath; }
   static QString getError() { return QString(); }
-  static ProcessResult run(const QStringList &args,
-                           bool showProgressDialog = false) {
+  static ProcessResult run(const QStringList &,
+                           bool = false) {
     return ProcessResult();
   }
 
@@ -165,7 +165,7 @@ class ProcessManager {
   }
 signals:
 
-  bool trySetProgram(const QString &path) { return false; }
+  bool trySetProgram(const QString &) { return false; }
 
 private:
   QString m_programPath;
diff --git a/src/processorselectiondialog.cpp b/src/processorselectiondialog.cpp
index f69a66c22..cf593bb5c 100644
--- a/src/processorselectiondialog.cpp
+++ b/src/processorselectiondialog.cpp
@@ -160,7 +160,7 @@ void ProcessorSelectionDialog::selectionChanged(QTreeWidgetItem *current,
     delete item;
   }
 
-  for (const auto &ext : qAsConst(isaInfo.supportedExtensions)) {
+  for (const auto &ext : std::as_const(isaInfo.supportedExtensions)) {
     auto chkbox = new QCheckBox(ext);
     chkbox->setToolTip(isaInfo.isa->extensionDescription(ext));
     m_ui->extensions->addWidget(chkbox);
diff --git a/src/ripessettings.cpp b/src/ripessettings.cpp
index 723728255..36ad11830 100644
--- a/src/ripessettings.cpp
+++ b/src/ripessettings.cpp
@@ -65,7 +65,7 @@ const std::map<QString, QVariant> s_defaultSettings = {
     {RIPES_SETTING_PROCESSOR_LAYOUT_ID, 0},
     {RIPES_SETTING_FOLLOW_EXEC, "true"},
     {RIPES_SETTING_SOURCECODE, ""},
-    {RIPES_SETTING_DARKMODE, false},
+    {RIPES_SETTING_DARKMODE, true},
     {RIPES_SETTING_SHOWSIGNALS, false},
     {RIPES_SETTING_INPUT_TYPE, static_cast<unsigned>(SourceType::Assembly)},
     {RIPES_SETTING_AUTOCLOCK_INTERVAL, 100},
diff --git a/src/savedialog.cpp b/src/savedialog.cpp
index d50bbb940..47aaf9049 100644
--- a/src/savedialog.cpp
+++ b/src/savedialog.cpp
@@ -50,7 +50,7 @@ void SaveDialog::accept() {
 
 void SaveDialog::pathChanged() {
   bool okEnabled = !QFileInfo(m_ui->filePath->text()).fileName().isEmpty();
-  okEnabled &= m_ui->saveSource->isChecked() | m_ui->saveBinary->isChecked();
+  okEnabled &= m_ui->saveSource->isChecked() || m_ui->saveBinary->isChecked();
 
   m_ui->buttonBox->button(QDialogButtonBox::Ok)->setEnabled(okEnabled);
 
diff --git a/src/settingsdialog.cpp b/src/settingsdialog.cpp
index e34faf1ff..441e2978b 100644
--- a/src/settingsdialog.cpp
+++ b/src/settingsdialog.cpp
@@ -21,6 +21,7 @@
 
 #include "utilities/hexspinbox.h"
 #include "utilities/scrolleventfilter.h"
+#include "wasmSupport.h"
 
 namespace Ripes {
 
@@ -148,7 +149,10 @@ SettingsDialog::SettingsDialog(QWidget *parent)
   // Create settings pages
   addPage("Environment", createEnvironmentPage());
   addPage("Simulator", createSimulatorPage());
-  addPage("Compiler", createCompilerPage());
+  auto *compilerPage = createCompilerPage();
+  addPage("Compiler", compilerPage);
+  // No C compiler support (yet) for wasm.
+  disableIfWasm(compilerPage);
   addPage("Editor", createEditorPage());
 
   m_ui->settingsList->setCurrentRow(
diff --git a/src/wasmSupport.h b/src/wasmSupport.h
new file mode 100644
index 000000000..2643f060b
--- /dev/null
+++ b/src/wasmSupport.h
@@ -0,0 +1,22 @@
+#pragma once
+
+#include <QWidget>
+
+namespace Ripes {
+
+// Disable a widget if we are running in a wasm environment.
+template <typename T>
+inline void disableIfWasm(T *widget) {
+#ifdef __EMSCRIPTEN__
+  widget->setEnabled(false);
+#endif
+}
+
+// Disables a list of widgets if we are running in a wasm environment.
+template <typename TList>
+inline void disableIfWasm(TList widgets) {
+  for (auto *widget : widgets)
+    disableIfWasm(widget);
+}
+
+} // namespace Ripes
\ No newline at end of file