HP 2000 BASIC help / TREK73

I need some help with some HP 2000 BASIC. I probably last used it around 1980, and not often even then for somehow the PDP-8s looked more attractive than the grey HP box in the same room. Yeah, I know better now. Luckily, I'm sure some of you can help me out... I've been retyping TREK73 from a fairly poor-quality listing, and it needs a sanity check. Also I'd like to learn a bit more about what I'm typing. This is the original source for the Star Trek program by William Char and friends, and what I've typed so far is on my Star Trek web page at http://www.dunnington.u-net.com/public/startrek/ I've added some other stuff to that page, too. Questions: All the lines have two spaces between the line number and the code. All, that is, except for a few that have an '@' in place of the second space. Is that significant (does it mean "ignore this" or something?) or is it just an artifact of a noisy Teletype line? (The listing appears to have been made on a Teletype, which needed a new ribbon and a better platen roller.) What does '14 in a PRINT statement, in front of a quoted string, mean (eg in PRINT '14"SULU")? I wondered if it were something like PRINT TAB(14)"... but there are TAB()s elsewhere. A control character, perhaps? If cursor or screen control, are they octal or decimal (I'd guess decimal) and is there a table anywhere? What exactly do the first two parameters to the ENTER command do? They always seem to have three variables (eg ENTER T2,T,X$). That'll do for now :-) If anyone would like to proofread what I've retyped so far (about half the total) and check for obvious sillies, please do - especially in TREK0 around line 740 (cf line 840). Better still, if anyone is willing to actually try this out, please do! though it won't work very well with half of it missing. -- Pete Peter Turnbull Network Manager University of York