[no subject]

I don't have a definitive answer, but I think the hardware is not effected.
Some software may need to be modified.  The Mountain hardware clock does
NOT keep track of year, (or even month and day for that matter).  It
essentially is a big counter, counting milliseconds (?) from the beginning
of the year.  Every year, around march or april, it would overflow, so
once a year you had to reset the clock so the counter would reset closer to
zero.  Software would turn the (milli)seconds count into time/date values,
so this would need to be checked to correct for century and leap year
adjustments.  I think onboard firmware did most of these millisecond to
date conversion for you and returned date/time values.  I do remember that
year was not a output value.  My ProDOS clock driver hard-coded the year
and every year I would have to patch the year byte for the correct year.
I'm not sure if century was coded, or just a two digit year.  I no longer
use my MH clock cards, but if they work in Dec 99, I would expect them to
work in Jan 00 and beyond, too.

  --Steve

-- 

 --Steve  (apple2pd@ground.ecn.uiowa.edu)