2195 	LINE adt, ad1, ad2;  in move()  local
2199 	if ((adt = address()) == 0)  in move()
2214 	if (adt < ad1) {  in move()
2215 		dot = adt + (ad2-ad1);  in move()
2216 		if ((++adt) == ad1)  in move()
2218 		reverse(adt, ad1);  in move()
2220 		reverse(adt, ad2);  in move()
2221 	} else if (adt >= ad2) {  in move()
2222 		dot = adt++;  in move()
2224 		reverse(ad2, adt);  in move()
2225 		reverse(ad1, adt);  in move()