1 files changed, 11 insertions, 0 deletions
diff --git a/src/lib/utils/donna128.h b/src/lib/utils/donna128.h
index 2cfeb455f..037d9bdfe 100644
--- a/src/lib/utils/donna128.h
+++ b/src/lib/utils/donna128.h
@@ -111,6 +111,17 @@ inline u64bit combine_lower(const donna128 a, size_t s1,
    return z.lo();
    }
 
+inline u64bit carry_shift(const uint128_t a, size_t shift)
+   {
+   return static_cast<u64bit>(a >> shift);
+   }
+
+inline u64bit combine_lower(const uint128_t a, size_t s1,
+                            const uint128_t b, size_t s2)
+   {
+   return static_cast<u64bit>((a >> s1) | (b << s2));
+   }
+
 }
 
 #endif