/// <summary>Constructs a new instance of the <see cref="MaximumLengthSequence"/> class from a tap value given by the argument.</summary>
/// <param name="tapValue">The tap value. A basic test of the validity of the tap value will be made, although it can not be guaranteed that the given tap value is able to generate a maximum length sequence. The highest set bit
/// of the tap value determines the length of the maximum length sequence.</param>
/// <returns>The constructed instance of the <see cref="MaximumLengthSequence"/> class with the given tap value.</returns>
public static MaximumLengthSequence FromTapValue(ulong tapValue)
{
var result = new MaximumLengthSequence
{
TapValue = tapValue
};
return(result);
}
/// <summary>Constructs a new instance of the <see cref="MaximumLengthSequence"/> class froms the number of stages (bits, flip-flops).</summary>
/// <param name="numberOfStages">The number of stages (2..64). The length of the resulting sequence is 2^numberOfStages-1.</param>
/// <returns>The constructed instance of the <see cref="MaximumLengthSequence"/> class with the given number of stages.</returns>
public static MaximumLengthSequence FromNumberOfStages(int numberOfStages)
{
if (!(numberOfStages >= 2))
{
throw new ArgumentOutOfRangeException("numberOfStages must be >= 2");
}
if (!(numberOfStages <= 64))
{
throw new ArgumentOutOfRangeException("numberOfStages must be <= 64");
}
var result = new MaximumLengthSequence
{
_numberOfStages = numberOfStages,
_sequenceLength = GetSequenceLengthFromNumberOfStages(numberOfStages),
_tap = TapValues[numberOfStages]
};
return(result);
}
