udp_tech@fennel.cc.uwa.oz.au (03/04/91)
AVOCET SYSTEMS INC., 120 Union St, P.O.Box 490 Rockport, ME 04856 do a wide range of assemblers and cross-assemblers. The address is elderly but you should be able to track them down. Another one worth calling might be AD2500 Software (address unknown, sorry, but try a large software house for a lead on the address). AVOCET products are very nice, but rather expensive, at least here in Australia. Hope this helps.