*20
	12-D6CC
	 
	A TO D TST
	 
	ST ADD
	LOC 4020
	 
	SW SET
	SSW=00 CH 00-17 ARE SAM AND DIS
	SSW=40 CH 20-37 ARE SAM AND DIS
	SSW=20 CH SEL BY LSW 7-11
	SSW=10 CH 0-7 
	SSW=04 CH 10-17
	SSW=02.CH 20-27
	SSW=01 CH 30-37