public void handler() {
            ROM_REGION(0x020000, REGION_CPU1);/* 68000 code */
            // Custom Cpu 317-0092
            ROM_LOAD_EVEN("tetris.a7", 0x000000, 0x10000, 0x9ce15ac9);
            ROM_LOAD_ODD("tetris.a5", 0x000000, 0x10000, 0x98d590ca);

            ROM_REGION(0x30000, REGION_GFX1 | REGIONFLAG_DISPOSE);/* tiles */
            ROM_LOAD("scr01.rom", 0x00000, 0x10000, 0x62640221);
            ROM_LOAD("scr02.rom", 0x10000, 0x10000, 0x9abd183b);
            ROM_LOAD("scr03.rom", 0x20000, 0x10000, 0x2495fd4e);

            ROM_REGION(0x020000 * 2, REGION_GFX2);/* sprites */
            ROM_LOAD("obj0-o.rom", 0x00000, 0x10000, 0x2fb38880);
            ROM_LOAD("obj0-e.rom", 0x10000, 0x10000, 0xd6a02cba);

            ROM_REGION(0x10000, REGION_CPU2);/* sound CPU */
            ROM_LOAD("s-prog.rom", 0x0000, 0x8000, 0xbd9ba01b);
            ROM_END();
        }