From: utzoo!decvax!ucbvax!info-vax
Newsgroups: fa.info-vax
Title: UNIX Emacs and Ann Arbor Ambassador
Article-I.D.: ucbvax.490
Posted: Thu Dec 23 14:46:30 1982
Received: Fri Dec 24 06:42:06 1982

>From MCLINDEN@RUTGERS  Thu Dec 23 14:25:38 1982
Mail-From: ARPANET host RUTGERS rcvd at 22-Dec-82 1342-PST
To: zorat.suny-sbcs@UDEL-RELAY
Cc: Info-Vax@SRI-CSL
Remailed-Date: 23 Dec 1982 1054-PST
Remailed-From: the tty of Geoffrey S. Goodfellow  <Geoff5 at SRI-CSL>
Remailed-To: Info-VAX@SRI-CSL: ;

Since it came up again, I thought I would mention that there is
 a bug in the terminal driver for Unix Emacs (Gosling), which is
 responsible, in part, for some of the problems. The bug is in
 TrmAmb.c in the function "blanks". The old code was:

    SetHL(0);
    if (CurrentMode == m_insert) {
        printf ("\033[%d@", n);

  etc.

  It should read:

    SetHL(0);
    if (DesiredMode == m_insert) {
        printf ("\033[%d@", n);

  And:

    static
    enum IDmode {m_insert = 1, m_overwrite = 0}
    CurrentMode, DesiredMode;

  should read:

    static
    enum IDmode {m_insert = 1, m_overwrite = 0}
    DesiredMode;

  We have found that this seems to solve the problems sometimes
  attributed to padding, at speads in excess of 9600 baud. This
  error was in a version of Emacs which we got in July so later
  editions may have fixed this.

  Merry Christmas!

  Sean McLinden
  Decision Systems Lab

  P.S. My apologies if an earlier (and incomplete), version
  of this text was released. The mailer jumped before I could
  proofread the text.
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