private Address normalizeToCodeUnitStart(Side side, Address address) {
		Listing listing = getListing(side);
		CodeUnit cu = listing.getCodeUnitContaining(address);

		if (cu != null) {
			address = cu.getMinAddress();
		}
		if (isValidAddress(side, address)) {
			return address;
		}
		return null;
	}
Creates an address correlation with a simplistic correlation where each address correlates based
on an offset from the address set's minimum address.
Ghidra/Features/Base/src/main/java/ghidra/features/base/codecompare/listing/LinearAddressCorrelation.java