Date   : Wed, 28 Mar 1984 12:09:50 pst
From   : William C. Wells <wcwells%ucbopal.CC@Ucb-Vax.ARPA>
Subject: Re: modem7 and emacs

In reply to:

       Date:  28 March 1984 10:41 cst
       From: Cargo.PD@Hi-Multics.ARPA
       Subject:  modem7 and emacs
       To: info-cpm@Amsaa.ARPA

       I too have been trying to use emacs (Gosling derivative from
       UniPress on VMS) with mdm720. When I turned on the capture
       option to see what was received, it became apparent that in
       terminal mode, mdm720 was eating the escape characters that
       emacs was sending to do things like cursor positioning and so
       forth.

Check your overlay for a

       IGNORCTL DB YES

about address 11DH, and change it to

       IGNORCTL DB NO

then re-overlay the COM file.

MDM7xx assumes that you are using a dump terminal (TTY) and that you
do not want to see extra characters generated by signal line noise.
Thus the "IGNORCTL DB YES" flag does not display characters higher
than control-M in the ASCII table when you are in terminal mode.

"IGNORCTL DB NO" should be set if you are using MDM7xx to communicate
with a remote computer that drives your microcomputer console
directly.

Bill Wells