int8_t sin256[]={
0,3,6,9,12,15,18,21,24,28,31,34,37,40,43,46,
48,51,54,57,60,63,65,68,71,73,76,78,81,83,85,88,
90,92,94,96,98,100,102,104,106,108,109,111,112,114,115,117,
118,119,120,121,122,123,124,124,125,126,126,127,127,127,127,127,
127,127,127,127,127,127,126,126,125,124,124,123,122,121,120,119,
118,117,115,114,112,111,109,108,106,104,102,100,98,96,94,92,
90,88,85,83,81,78,76,73,71,68,65,63,60,57,54,51,
48,46,43,40,37,34,31,28,24,21,18,15,12,9,6,3,
0,-3,-6,-9,-12,-15,-18,-21,-24,-28,-31,-34,-37,-40,-43,-46,
-48,-51,-54,-57,-60,-63,-65,-68,-71,-73,-76,-78,-81,-83,-85,-88,
-90,-92,-94,-96,-98,-100,-102,-104,-106,-108,-109,-111,-112,-114,-115,-117,
-118,-119,-120,-121,-122,-123,-124,-124,-125,-126,-126,-127,-127,-127,-127,-127,
-128,-127,-127,-127,-127,-127,-126,-126,-125,-124,-124,-123,-122,-121,-120,-119,
-118,-117,-115,-114,-112,-111,-109,-108,-106,-104,-102,-100,-98,-96,-94,-92,
-90,-88,-85,-83,-81,-78,-76,-73,-71,-68,-65,-63,-60,-57,-54,-51,
-48,-46,-43,-40,-37,-34,-31,-28,-24,-21,-18,-15,-12,-9,-6,-3,
};