public void handler() {
            ROM_REGION(0x10000, REGION_CPU1);/* 64k for code */

            ROM_LOAD("thawk.l8", 0xdc00, 0x0400, 0xb01dab4b);
            ROM_LOAD("thawk.l7", 0xe000, 0x0400, 0x3a6549e8);
            ROM_LOAD("thawk.l6", 0xe400, 0x0400, 0x863e47f7);
            ROM_LOAD("thawk.l5", 0xe800, 0x0400, 0xde0183bc);
            ROM_LOAD("thawk.l4", 0xec00, 0x0400, 0x11e9c7ea);
            ROM_LOAD("thawk.l3", 0xf000, 0x0400, 0xec44d388);
            ROM_LOAD("thawk.l2", 0xf400, 0x0400, 0xdc0a0f54);
            ROM_LOAD("thawk.l1", 0xf800, 0x0400, 0x1d9dab9c);
            ROM_LOAD("thawk.l0", 0xfc00, 0x0400, 0xd21a1eba);

            ROM_REGION(0x0020, REGION_PROMS);
            ROM_LOAD("t777.clr", 0x0000, 0x0020, 0xd6a528fd);
            ROM_END();
        }