static const int16_t ydt3[8] = { 4, -6, 20, -20, 46, -46, 94, -94 };
static const int16_t fat_ydt3[8] = { 0, -15, 50, -50, 115, -115, 235, -235 };
static const int16_t ydt4[8] = { 0, -4, 4, -16, 16, -36, 36, -80 };
static const int16_t ydt3[8] = { 4, -6, 20, -20, 46, -46, 94, -94 };
static const int16_t fat_ydt3[8] = { 0, -15, 50, -50, 115, -115, 235, -235 };
static const int16_t ydt4[8] = { 0, -4, 4, -16, 16, -36, 36, -80 };