FRAC_BITS
tmp |= (vert_space * (1 << FRAC_BITS) / 10000);
tv_y_saw_tooth_cntl = (vert_space * SLOPE_value[i] * (1 << (FRAC_BITS - 1)) +
(1 << (FRAC_BITS - 1)) / 8) << 16);
RADEON_Y_FALL_PING_PONG | (272 * SLOPE_value[i] / 8) * (1 << (FRAC_BITS - 1)) /
(flicker_removal * 1024 - 272) * SLOPE_value[i] / 8 * (1 << (FRAC_BITS - 1)) / 1024;