public static konami_cpu_setlines_callbackPtr rollerg_banking = new konami_cpu_setlines_callbackPtr() { public void handler(int lines)
        {
		UBytePtr RAM = memory_region(REGION_CPU1);
		int offs = 0;
	
	
		offs = 0x10000 + ((lines & 0x07) * 0x4000);
		if (offs >= 0x28000) offs -= 0x20000;
		cpu_setbank(1,new UBytePtr(RAM,offs));
	}}