void deserialize(PdbByteReader substreamReader) throws PdbException {
		flags = substreamReader.parseUnsignedShortVal();
		ovl = substreamReader.parseUnsignedShortVal();
		group = substreamReader.parseUnsignedShortVal();
		frame = substreamReader.parseUnsignedShortVal();
		segNameIndex = substreamReader.parseUnsignedShortVal();
		classNameIndex = substreamReader.parseUnsignedShortVal();
		segOffset = substreamReader.parseUnsignedIntVal();
		segLength = substreamReader.parseUnsignedIntVal();
	}
Deserializes the {@link SegmentMapDescription}.
@param substreamReader {@link PdbByteReader} from which to deserialize the data.
@throws PdbException Upon not enough data left to parse.
Ghidra/Features/PDB/src/main/java/ghidra/app/util/bin/format/pdb2/pdbreader/SegmentMapDescription.java