diff --git a/rx/include/rx/bits.hpp b/rx/include/rx/bits.hpp
index c2762efd9..5fab46ebb 100644
--- a/rx/include/rx/bits.hpp
+++ b/rx/include/rx/bits.hpp
@@ -6,7 +6,21 @@ inline constexpr T getBits(T value, unsigned end, unsigned begin) {
   return (value >> begin) & ((1ull << (end - begin + 1)) - 1);
 }
 
+template <typename T, typename U>
+inline constexpr T setBits(T value, unsigned end, unsigned begin, U bits) {
+  auto mask = ((1ull << (end - begin + 1)) - 1) << begin;
+  return static_cast<T>((value & ~mask) |
+                        ((static_cast<T>(bits) << begin) & mask));
+}
+
 template <typename T> inline constexpr T getBit(T value, unsigned bit) {
   return (value >> bit) & 1;
 }
+template <typename T, typename U>
+inline constexpr T setBit(T value, unsigned bit, U bitValue) {
+  auto mask = 1ull << bit;
+
+  return static_cast<T>((value & ~mask) |
+                        ((static_cast<T>(bitValue) << bit) & mask));
+}
 } // namespace rx