DST_LAST_PEL
aty_st_le32(DST_CNTL, DST_LAST_PEL | DST_Y_TOP_TO_BOTTOM |
u32 dy = area->dy, sy = area->sy, direction = DST_LAST_PEL;
DST_LAST_PEL | DST_Y_TOP_TO_BOTTOM |