[fpc-pascal] Efficient millisecond timestamp

[Mark Morgan Lloyd]

What's the most efficient and portable way of getting a millisecond 
timestamp, relative to any ancient epoch? I find

TimeStampToMSecs(DateTimeToTimeStamp(Now))

hard to swallow since Now() is hardly efficient and the resulting Comp 
is marked as non-potable in the documentation.

-- 
Mark Morgan Lloyd
markMLl .AT. telemetry.co .DOT. uk

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