READ intialy points to the first DATA bit, and then moves its internal pointer to the next one, yes
DATA may have several data bits, separated by a comma
several DATA lines may exist, READ will just from one to the other
you may want the RESTORE keyword, that forces the DATA pointer to a given line number
useful to reprocess the same DATA again and again
READ intialy points to the first DATA bit, and then moves its internal pointer to the next one, yes DATA may have several data bits, separated by a comma several DATA lines may exist, READ will just from one to the other you may want the RESTORE keyword, that forces the DATA pointer to a given line number useful to reprocess the same DATA again and again