public byte getOriginalValue() throws IOException {
		if (mappedInfo != null) {
			return mappedInfo.getOriginalValue();
		}
		if (fileBytes != null) {
			return fileBytes.getOriginalByte(getFileOffset());
		}
		return 0;
	}
Returns the original byte value from the imported file that provided the byte value for the
associated address or 0 if there is no source information for this location.
@return the original byte value from the imported file that provided the byte value for the
associated address or 0 if there is no source information for this location.
@throws IOException if an io error occurs reading the program database.
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/mem/AddressSourceInfo.java