Implementation

final List<int> bitrevTable = <int>[
  0,128,64,192,32,160,96,224,16,144,80,208,48,176,112,240,
  8,136,72,200,40,168,104,232,24,152,88,216,56,184,120,248,
  4,132,68,196,36,164,100,228,20,148,84,212,52,180,116,244,
  12,140,76,204,44,172,108,236,28,156,92,220,60,188,124,252,
  2,130,66,194,34,162,98,226,18,146,82,210,50,178,114,242,
  10,138,74,202,42,170,106,234,26,154,90,218,58,186,122,250,
  6,134,70,198,38,166,102,230,22,150,86,214,54,182,118,246,
  14,142,78,206,46,174,110,238,30,158,94,222,62,190,126,254,
  1,129,65,193,33,161,97,225,17,145,81,209,49,177,113,241,
  9,137,73,201,41,169,105,233,25,153,89,217,57,185,121,249,
  5,133,69,197,37,165,101,229,21,149,85,213,53,181,117,245,
  13,141,77,205,45,173,109,237,29,157,93,221,61,189,125,253,
  3,131,67,195,35,163,99,227,19,147,83,211,51,179,115,243,
  11,139,75,203,43,171,107,235,27,155,91,219,59,187,123,251,
  7,135,71,199,39,167,103,231,23,151,87,215,55,183,119,247,
  15,143,79,207,47,175,111,239,31,159,95,223,63,191,127,255
];