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From: jedelen@slate.mines.colorado.edu (Jeff Edelen)
Newsgroups: comp.terminals
Subject: Re: Lear Siegler ADM-3 terminal
Message-ID: <1991Apr10.162838.18015@slate.mines.colorado.edu>
Date: 10 Apr 91 16:28:38 GMT
References: <4@metran.UUCP> <15658@smoke.brl.mil>
Organization: Colorado School of Mines
Lines: 18

In article <15658@smoke.brl.mil> gwyn@smoke.brl.mil (Doug Gwyn) writes:
>In article <4@metran.UUCP> jay@metran.UUCP (Jay Ts) writes:
>>Also, I was aghast to find the adm3 terminfo entry on UNIX Sys V/386 does
>>not handle curses well!  vi, for example, has to use open mode.  Now, I seem
>>to recall being able to use a screen editor on a UNIX 32V system with an
>>adm3a sometime in 1981, so it is/was possible, *right*?
>
>I don't think the ADM-3 was able to do much more than emulate a
>"glass KSR-33" except for the addition of direct cursor addressing.
>Many screen-oriented text editors require features such as erase-to-
>end-of-line, which the ADM-3 may not have had.

I think the biggest difficulty was the lack of a "reverse line feed"
sequence.  Without it, you couldn't open a line at the top of the screen
as you need to when moving up through your text (dropping the bottom
line and adding a new top line).

--Jeff