Fix #2 Preserve unsigned 64-bit decoded values

main.cpp

@@ -87,8 +87,9 @@ static void PrintDecodedFrame (const DecodedFrameValue &decoded) {
       continue;
 
     std::cout << "  " << signal.definition->name
-              << " raw=" << signal.rawValue
-              << " physical=" << signal.physicalValue
+              << " raw=";
+    std::visit ([] (auto rawValue) { std::cout << rawValue; }, signal.rawValue);
+    std::cout << " physical=" << signal.physicalValue
               << " " << signal.definition->unit
               << "\n";
   }