Align bit transform comments with original implementation

EvenPerfectBitScanner/Candidates/Transforms/CandidateAddTransform.cs

@@ -0,0 +1,30 @@
+using System.Runtime.CompilerServices;
+using System.Threading;
+using EvenPerfectBitScanner.Candidates;
+
+namespace EvenPerfectBitScanner.Candidates.Transforms;
+
+internal static class CandidateAddTransform
+{
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    internal static ulong Transform(ulong value, ref ulong remainder, ref bool limitReached)
+    {
+        ulong next = value;
+        ulong diff = remainder.GetNextAddDiff();
+
+        if (next > ulong.MaxValue - diff)
+        {
+            Volatile.Write(ref limitReached, true);
+            return next;
+        }
+
+        remainder += diff;
+        // Retain direct modulo because the Mod6 helper underperforms on 64-bit operands.
+        while (remainder >= 6UL)
+        {
+            remainder -= 6UL;
+        }
+
+        return next + diff;
+    }
+}