[Kernel] Fixed incorrect behaviour of IsSystemTitle util

- Added missing symlinks

src/xenia/emulator.cc

@@ -579,6 +579,14 @@ X_STATUS Emulator::LaunchXexFile(const std::filesystem::path& path) {
     if (!kernel::IsSystemTitle(title_id)) {
       // Assumption that any loaded game is loaded as a disc.
       kernel_state_->deployment_type_ = XDeploymentType::kOpticalDisc;
+    } else {
+      const std::string mount_path = xe::path_to_utf8(
+          std::filesystem::path(kernel_state_->GetExecutableModule()->path())
+              .parent_path());
+
+      // System related symlinks
+      file_system_->RegisterSymbolicLink("media:", mount_path);
+      file_system_->RegisterSymbolicLink("font:", mount_path);
     }
   }
   return result;

src/xenia/kernel/title_id_utils.h

@@ -73,11 +73,11 @@ static constexpr bool IsSystemTitle(const uint32_t title_id) {
   }
 
   if (!IsXboxTitle(title_id)) {
-    return IsValidGameId(title_id);
+    return !IsValidGameId(title_id);
   }
 
   if (IsXblaTitle(title_id)) {
-    return IsValidGameId(title_id);
+    return !IsValidGameId(title_id);
   }
 
   return true;

src/xenia/kernel/xboxkrnl/xboxkrnl_xconfig.cc

@@ -135,7 +135,7 @@ X_STATUS xeExGetXConfigSetting(uint16_t category, uint16_t setting,
         case 0x000C:  // XCONFIG_USER_RETAIL_FLAGS
           setting_size = 4;
           // TODO(benvanik): get this value.
-          xe::store_and_swap<uint32_t>(value, 0);
+          xe::store_and_swap<uint32_t>(value, 0x40);
           break;
         case 0x000E:  // XCONFIG_USER_COUNTRY
           setting_size = 1;