VOID
PopRoundThrottle(
  IN  UCHAR Throttle,
  OUT OPTIONAL PUCHAR RoundDown,
  OUT OPTIONAL PUCHAR RoundUp,
  OUT OPTIONAL PUCHAR RoundDownIndex,
  OUT OPTIONAL PUCHAR RoundUpIndex
  );

Routine Description:

    Given an arbitrary throttle percentage, computes the closest
    match in the possible throttle steps. Both the lower and higher
    matches are returned.

Arguments:

    Throttle - supplies the percentage throttle

    RoundDown - Returns the closest match, rounded down.

    RoundUp - Returns the closest match, rounded up.

Return Value:

    None