public void handler() {
            konami_cpu_setlines_callback = vendetta_banking;

            paletteram = new UBytePtr(memory_region(REGION_CPU1), 0x48000);
            irq_enabled = 0;

            /* init banks */
            cpu_setbank(1, new UBytePtr(memory_region(REGION_CPU1), 0x10000));
            vendetta_video_banking(0);
        }