private void CheckSpriteDMA() { byte mask = 1; for (int i = 0; i < 8; i++, mask <<= 1) if ((me & mask) != 0 && (raster_y & 0xff) == my[i]) { spr_dma_on |= mask; mc_base[i] = 0; if ((mye & mask) != 0) spr_exp_y &= (byte)~mask; } }