public static WriteHandlerPtr bottom9_1f90_w = new WriteHandlerPtr() { public void handler(int offset, int data)
	{
		/* bits 0/1 = coin counters */
		coin_counter_w.handler(0,data & 0x01);
		coin_counter_w.handler(1,data & 0x02);
	
		/* bit 2 = enable char ROM reading through the video RAM */
		K052109_set_RMRD_line((data & 0x04)!=0 ? ASSERT_LINE : CLEAR_LINE);
	
		/* bit 3 = disable video */
		bottom9_video_enable = ~data & 0x08;
	
		/* bit 4 = enable 051316 ROM reading */
		zoomreadroms = data & 0x10;
	
		/* bit 5 = RAM bank */
		K052109_selected = data & 0x20;
	} }