public void handler() {
            ROM_REGION(CODE_SIZE, REGION_CPU1);     /* 68000 code */

            ROM_LOAD_EVEN("psu26.rom", 0x000000, 0x20000, 0x9236d121);
            ROM_LOAD_ODD("psu30.rom", 0x000000, 0x20000, 0x8320e501);
            ROM_LOAD_EVEN("psu27.rom", 0x040000, 0x20000, 0x61c960a1);
            ROM_LOAD_ODD("psu31.rom", 0x040000, 0x20000, 0x78d4c298);
            ROM_LOAD_EVEN("psu24.rom", 0x080000, 0x20000, 0x1cfecad7);
            ROM_LOAD_ODD("psu28.rom", 0x080000, 0x20000, 0xbdf921c1);
            ROM_LOAD_EVEN("psu25.rom", 0x0c0000, 0x20000, 0xc51acc94);
            ROM_LOAD_ODD("psu29.rom", 0x0c0000, 0x20000, 0x52dce1ca);
            ROM_LOAD_WIDE_SWAP("ps_21.rom", 0x100000, 0x80000, 0x8affa5a9);

            ROM_REGION(0x400000, REGION_GFX1 | REGIONFLAG_DISPOSE);
            ROM_LOAD("ps_gfx2.rom", 0x000000, 0x80000, 0x64fa58d4);
            ROM_LOAD("ps_gfx6.rom", 0x080000, 0x80000, 0xa544f4cc);
            ROM_LOAD("ps_gfx1.rom", 0x100000, 0x80000, 0x77b7ccab);
            ROM_LOAD("ps_gfx5.rom", 0x180000, 0x80000, 0xc54ea839);
            ROM_LOAD("ps_gfx4.rom", 0x200000, 0x80000, 0x60da42c8);
            ROM_LOAD("ps_gfx8.rom", 0x280000, 0x80000, 0x8f02f436);
            ROM_LOAD("ps_gfx3.rom", 0x300000, 0x80000, 0x0122720b);
            ROM_LOAD("ps_gfx7.rom", 0x380000, 0x80000, 0x04c5acbd);

            ROM_REGION(2 * 0x28000, REGION_CPU2);/* QSound Z80 code + space for decrypted opcodes */

            ROM_LOAD("ps_q.rom", 0x00000, 0x08000, 0x49ff4446);
            ROM_CONTINUE(0x10000, 0x18000);

            ROM_REGION(0x200000, REGION_SOUND1);/* QSound samples */

            ROM_LOAD("ps_q1.rom", 0x000000, 0x80000, 0x31fd8726);
            ROM_LOAD("ps_q2.rom", 0x080000, 0x80000, 0x980a9eef);
            ROM_LOAD("ps_q3.rom", 0x100000, 0x80000, 0x0dd44491);
            ROM_LOAD("ps_q4.rom", 0x180000, 0x80000, 0xbed42f03);
            ROM_END();
        }