typedef  struct  SclLineParam {
     Uint8 delta_enbl; / * Line zoom enabled * /
                                   / * Line & vertical cell scroll register (18009ah) * /
                                   / * ON / OFF * /
     Uint8 v_enbl; / * Line scroll enable (vertical) * /
                                   / * Line & vertical cell scroll register; (18009ah) * /
                                   / * ON / OFF * /
     Uint8 h_enbl; / * Cell scroll enable (horizontal) * /
                                   / * Line & vertical cell scroll register (18009ah) * /
                                   / * ON / OFF * /
     Uint8 cell_enbl; / * Enable vertical cell scrolling * /
                                   / * Line & vertical cell scroll register (18009ah) * /
                                   / * ON / OFF * /
     Uint8 interval; / * Line-in scroll interval * /
                                   / * Line & vertical cell scroll register (18009ah) * /
                                   / * SCL_1_LINE * /
                                   / * Line scroll data table for each line * /
                                   / * Set * /
                                   / * SCL_2_LINE * /
                                   / * Line scroll data table every 2 lines * /
                                   / * Set * /
                                   / * SCL_4_LINE * /
                                   / * Line scroll data table every 4 lines * /
                                   / * Set * /
     Uint32 line_addr; / * Line scroll address register (18009ch ~ 18009eh) * /
                                   / * Set the address on VRAM where the line scroll table is placed * /
     Uint32 cell_addr; / * Vertical cell scroll table address register (18009c to 18009e) * /
                                   / * Set the address on VRAM where the vertical cell scroll table is placed * /
     GlbLineTb line_tbl []; / * Line scroll table * /
     Fixed32 cell_tbl []; / * Vertical cell scroll address register * /
} SclLineParam;