static Vec256 <T> ClearAlternating() { var mask = Span256.Alloc <T>(1); var chop = PrimalInfo.Get <T>().MaxVal; //For the first 128-bit lane var half = mask.Length / 2; for (byte i = 0; i < half; i++) { if (i % 2 != 0) { mask[i] = chop; } else { mask[i] = convert <byte, T>(i); } } //For the second 128-bit lane for (byte i = 0; i < half; i++) { if (i % 2 != 0) { mask[i + half] = chop; } else { mask[i + half] = convert <byte, T>(i); } } return(Vec256.Load(mask)); }
protected virtual Interval <byte> ShiftRange <K>() where K : unmanaged { var offsetMin = (byte)1; var offsetMax = (byte)(PrimalInfo.Get <K>().BitSize - 2); return(closed(offsetMin, offsetMax)); }