Exemplo n.º 1
0
 public static void main(string[] args)
 {
     ulong[] bounds = new ulong[] {
         PACKED_1_START,
         PACKED_1_END,
         PACKED_2_START,
         PACKED_2_END,
         PACKED_3_START,
         PACKED_3_END,
         PACKED_4_START,
         PACKED_4_END,
         PACKED_5_START,
         PACKED_5_END,
         PACKED_6_START,
         PACKED_6_END,
         PACKED_7_START,
         PACKED_7_END,
     };
     for (int n = 0; n < bounds.Length; n++)
     {
         for (ulong l = bounds[n] - 1; l < bounds[n] + 2; l++)
         {
             long abs = Math.Abs((long)l);
             Console.WriteLine(String.Format("number {0} {1} {2} bits: {3} switch: {4} - {5}"
                                             , l.ToString("X")
                                             , l
                                             , Fns.numberOfLeadingZeros(abs)
                                             , bitsneeded((long)l)
                                             , switchon((long)l)
                                             , abs));
         }
     }
 }
Exemplo n.º 2
0
 public static int switchon(long l)
 {
     if (l > 0)
     {
         return(Fns.numberOfLeadingZeros(l));
     }
     else
     {
         return(Fns.numberOfLeadingZeros(~l));
     }
 }
Exemplo n.º 3
0
 public static int bitsneeded(long l)
 {
     if (l > 0)
     {
         return(65 - Fns.numberOfLeadingZeros(l));
     }
     else
     {
         return(65 - Fns.numberOfLeadingZeros(~l));
     }
 }