protected long hashString32(String string, long unsigned32BitMod) throws PdbException {
		byte[] bytes = string.getBytes();
		PdbByteReader reader = new PdbByteReader(bytes);
		int count = bytes.length;
		//int count = length >> 2; // Processing 32 bits at a time.
		long hash = 0; // represents unsigned int.

		while (count >= 4) {
			count -= 4;
			hash ^= reader.parseUnsignedIntVal();
		}
		if (bytes.length - reader.getIndex() >= 2) {
			hash ^= reader.parseUnsignedShortVal();
		}
		if (bytes.length - reader.getIndex() == 1) {
			hash ^= reader.parseUnsignedByteVal();
		}

		hash |= 0x20202020; // to-lower mask (not sure of effect after the above hashing)
		hash ^= (hash >> 11);
		// Mask down to 32-bits.
		hash &= 0xffffffff;
		// Apply modulus.
		return (hash ^ (hash >> 16)) % unsigned32BitMod;
	}
Hashes {@link String}, using unsigned32BitMod, which the user should ensure is <= 0xffffffff.
Returns an unsigned integer value (32-bit) returned as a long.
@param string The input {@link String} to be hashed.
@param unsigned32BitMod Modulus to be used for the hash.
@return An unsigned integer hash value returned as a long.
@throws PdbException Upon not enough data left to parse.
Ghidra/Features/PDB/src/main/java/ghidra/app/util/bin/format/pdb2/pdbreader/Hasher.java