This record type contains the compressed data values. There are
OBJDESC..CMPNUM of these COMPDAT records.
The VALS field contains a byte
array of compressed values; the lengths of the 'th field is given by
the
'th element of the COMPLEN.LENGTHS array.
When this field is uncompressed, it will contain the
values as specified in a series of PAKDAT or REGDAT records without those
records' RECTYPE
fields.