System.Collections.Hashtable.putEntry C# (CSharp) Method

        private void putEntry(bucket[] newBuckets, Object key, Object nvalue, int hashcode)
        {
            Debug.Assert(hashcode >= 0, "hashcode >= 0");  // make sure collision bit (sign bit) wasn't set.

            uint seed = (uint)hashcode;
            uint incr = (uint)(1 + ((seed * HashPrime) % ((uint)newBuckets.Length - 1)));
            int bucketNumber = (int)(seed % (uint)newBuckets.Length);
            do
            {
                if ((newBuckets[bucketNumber].key == null) || (newBuckets[bucketNumber].key == _buckets))
                {
                    newBuckets[bucketNumber].val = nvalue;
                    newBuckets[bucketNumber].key = key;
                    newBuckets[bucketNumber].hash_coll |= hashcode;
                    return;
                }

                if (newBuckets[bucketNumber].hash_coll >= 0)
                {
                    newBuckets[bucketNumber].hash_coll |= unchecked((int)0x80000000);
                    _occupancy++;
                }
                bucketNumber = (int)(((long)bucketNumber + incr) % (uint)newBuckets.Length);
            } while (true);
        }