int get(int parm) throws IOException, IndexOutOfBoundsException {
		try {
			return cache.get(parm);
		}
		catch (NoValueException e) {
			throw new IndexOutOfBoundsException();
		}
	}
Get a parameter value
@param parm parameter number
@return parameter value
@throws IOException thrown if an IO error occurs
@throws IndexOutOfBoundsException if index outside of allocated
parameter space.
Ghidra/Framework/DB/src/main/java/db/DBParms.java