prompt command to set diff prompt for any console
Tue Aug 17 1999

timer val id value
Tue Aug 17 1999
Done: Tue Aug 17 1999

stop should report stop address on `go' console
Tue Aug 17 1999
Done: Tue Aug 17 1999

dis command prints out short lists repeatedly. It should remember addresses
printed out and stop if an already used address comes.
Thu Sep 30 1999