🚀 go-pugleaf

VS> .In the process of writing a routine to get high-resolution times from the 
  > .timer chip, I wondered at the weird clock rate for the timer chip: 1.19318
  > .Mhz.  Is that right?  If the clock rate were 1.193046 Mhz, the low-speed
  > .counter at 040:06eH would tick once per hour.  At 1.193180 Mhz, it ticks a
  > .1/2 second early (65536*65536/1193180 ~= 3599.597, 65536*65536/1193046 ~=
  > .3600.001), or about 6 us early per interrupt (65536/1193046-65536/1193180)
  > .assuming overflow of the medium-speed counter at 040:06cH is intended to t
  > .the low-speed counter at 040:06eH once per hour.

Good thinking.  What you're missing is that the most common high
precision crystal is 3.579545 mHz.  That's the frequency used for the
color subcarrier oscillator in a color TV, and since they're made by the
gazillions, they're very cheap.

That's the story behind the story...

        D/
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 . QMPro 1.0 41-3345 . Bring back A-N airways!!    Dick.Zeitlin%acc1bbs@ssr.com