@Override
	public int getNextOpenSegment(Address addr) {
		int res = getDefaultSegmentFromFlat(addr.getOffset());
		// Advance the selector by 8, accounting for the descriptor table bit and the privilege level bits
		res = (res + 8) & 0xfff8;
		return res;
	}
Address Space for (intel) 16-bit protected mode programs. This space produces
SegmentedAddress objects whose underlying (flat) offset encodes both the
segment and the segment offset without losing information. There is no possibility
of alternate encodings for a single address as with real-mode.
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/address/ProtectedAddressSpace.java