UI itself is usable

src/frontend/EmuThread.cpp

@@ -0,0 +1,11 @@
+#include <EmuThread.hpp>
+
+EmuThread::EmuThread(QObject* parent_object) noexcept : QThread(parent_object) {}
+
+[[noreturn]] void EmuThread::run() noexcept {
+  while (true) {
+    if (!core.pause) {
+      core.Run(0.5, 0.5);
+    }
+  }
+}