public static konami_cpu_setlines_callbackPtr gbusters_banking = new konami_cpu_setlines_callbackPtr() { public void handler(int lines)
        {
		UBytePtr RAM = memory_region(REGION_CPU1);
		int offs = 0x10000;
	
		/* bits 0-3 ROM bank */
		offs += (lines & 0x0f)*0x2000;
		cpu_setbank( 1, new UBytePtr(RAM,offs) );
	
		//if (lines & 0xf0){
			//if (errorlog)
			//	fprintf(errorlog,"%04x: (lines) write %02x\n",cpu_get_pc(), lines);
			//sprintf(baf,"lines = %02x", lines);
			//usrintf_showmessage(baf);
		//}
	
		/* other bits unknown */
	}}