> 1). I wouldn't use the PIT, sounds unreliable,
using the PIT can be made reliable; has worked flawless for over 20
years since some 80286

> but then again, I don't  know how anyways.  ;-)

> 3). RDTSC (586+) is probably not what you want, esp. due to early
> 586-686 time duration limitations and later SMP having issues
SMP is never an issue in DOS


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