
The .zap file is probably corrupt, I'm not using Timex's software to
load it into the watch.  The included source-code should work.  Please
let me know about any problems with it, since I'm using a home-grown
assembler too (which thinks its a C compiler at times).

Anyway, this is an attempt at writing a tide clock.  It will count from
-6:11:09 to +6:11:09, and back.  -6:11:09 is low tide, 00:00:00 is 
flood-tide (the water is flowing into the harbor), +6:11:09 is high
tide, back to 00:00:00 which is ebb-tide this time (water is leaving
the harbor), etc.  The theory is that you set the watch to the harbor
you're approaching from an announcement.  It will then indicate the tide
for a while, until it drifts out of sync due to rounding errors.  It
should remain in sync for a week or so.

To use:
Load it into your watch.
Next and prev will set the hour.  There is as yet no way to set the minutes
or seconds.  Set/delete will reverse the direction of the direction.
There is no way to set the sign of the time either...  This is a work in
progress...

Thanks to John Zeigler (KG4CSC) for the inspiration to dust off my Timex
stuff, and actually get something done with it, as well as explaining 
Tides.  He really designed the program, I just implemented it.  

Thanks to John A. Toebes, for his datalink reference material at
http://www.geocities.com/ResearchTriangle/7650/datalink.html.  
Without Karl R. Hakimian's datalink library this probably wouldn't have
gotten done either.

I suppose I should thank Timex for creating the watch...  But they
sure didn't help with any programming information.

-Tommy Johnson   KE4ILZ
tjohnson@csgrad.cs.vt.edu
