khockenbury@vaxc.stevens-tech.edu
Date: 04/07/93


From: khockenbury@vaxc.stevens-tech.edu
Subject: VT100 info (was Re: Wanted: console control sequences)
Date: Wed, 7 Apr 1993 16:06:11 GMT

Erik Heinz (pih@rz.uni-jena.de) wrote:
: Is there any information available on the CTRL- or ESC- sequences that Linux
: consoles understand? Unfortunately, I neither have a VT100 manual at hand nor
: do I know to what extend the consoles are VT100 compatible.

Here is some vt100 info off the net. Linux seems to do a very good job with
vt100 compatibility (hurrah Linus!). I've found some minor stuff missing
(double width characters, double height characters).

Newsgroups: comp.terminals
From: chan@ece.scarolina.edu (Simon Chan)
Subject: VT100 Reference Card !! ( if you are looking for....)
Message-ID: <chan.728236678@hertz>
Keywords: vt100 terminal escape codes
Organization: USC Department of Computer Science
Date: 28 Jan 1993 15:57:58 GMT
Lines: 162

Taken from VT100 Programming Reference Card (DIGITAL)

ANSI Compatible Mode

        Cursor Movement Commands
                Cursor up ESC [ Pn A
                Cursor down ESC [ Pn B
                Cursor forward (right) ESC [ Pn C
                Cursor backward (left) ESC [ Pn D
                Direct cursor addressing ESC [ Pl; Pc H or
                                                ESC [ Pl; Pc f
                Index ESC D
                Next Line ESC E
                Reverse index ESC M
                Save cursor and attributes ESC 7
                Restore cursor and attributes ESC 8
                * Pn = decimal parameter in string of ASCII digits.(default 1)
                * Pl = line number (default 0); Pc = column number (default 0)

        Line Size (Double-Height and Double-Width) Commands
                Change this line to double-height top half ESC # 3
                Change this line to double-height bottom half ESC # 4
                Change this line to single-width single-height ESC # 5
                Change this line to double-width single-height ESC # 6

        Character Attributes
                ESC [ Ps;Ps;Ps;...,Ps m
                Ps = 0 or None All Attributes Off
                        1 Bold on
                        4 Underscore on
                        5 Blink on
                        7 Reverse video on
                Any other parameter values are ignored.

        Erasing
                From cursor to end of line ESC [ K or ESC [ 0 K
                From beginning of line to cursor ESC [ 1 K
                Entire line containing cursor ESC [ 2 K
                From cursor to end of screen ESC [ J or ESC [ 0 J
                From beginning of screen to cursor ESC [ 1 J
                Entire screen ESC [ 2 J

        Programmable LEDs
                ESC [ Ps;Ps;...Ps q
                Ps = 0 or None All LEDs Off
                        1 L1 on
                        2 L2 on
                        3 L3 on
                        4 L4 on
                Any other parameter values are ignored.

        Character Set (G0 and G1 Designators)
                Charactor Set G0 Designator G1 Designator
                United Kingdom (UK) ESC ( A ESC ) A
                United States (USASCII) ESC ( B ESC ) B
                Special graphics characters ESC ( 0 ESC ) 0
                 and line drawing set
                Alternate character ROM ESC ( 1 ESC ) 1
                Alternate character ROM ESC ( 2 ESC ) 2
                 special graphics characters

        Scrolling Region
                ESC [ Pt ; Pb r
                Pt is the number of the top line of the scrolling region;
                Pb is the number of the bottom line of the scrolling region
                and must be greater than Pt.
                (The default for Pt is line 1, the default for Pb is the end
                 of the screen)

        TAB stops
                Set tab at current column ESC H
                Clear tab at curent column ESC [ g or ESC [ 0 g
                Clear all tabs ESC [ 3 g

        Modes
                                  To Set To Reset
        Mode Name Mode Sequence Mode Sequence
        Line feed/new line New line ESC [20h Line feed ESC [20l
        Cursor key mode Application ESC [?1h Cursor ESC [?l
        ANSI/VT52 mode ANSI N/A VT52 ESC [?2l
        Column mode 132 Col ESC [?3h 80 Col ESC [?3l
        Scrolling mode Smooth ESC [?4h Jump ESC [?4l
        Screen mode Reverse ESC [?5h Normal ESC [?5l
        Origin mode Relative ESC [?6h Absolute ESC [?6l
        Wraparound On ESC [?7h Off ESC [?7l
        Auto repeat On ESC [?8h Off ESC [?8l
        Interlace On ESC [?9h Off ESC [?9l
        Graphic proc. option On ESC 1 Off ESC 2
        Keypad mode Application ESC = Numeric ESC >

        Reports
                Cursor Position Report
                Invoked by ESC [ 6 n
                Response is ESC [ Pl; Pc R
                * Pl = line number; Pc = column number

        Status Report
                Invoked by ESC [ 5 n
                Response is ESC [ 0 n (terminal ok)
                                                ESC [ 3 n (terminal not ok)

        What Are You
                Invoked by ESC [ c or ESC [ O c
                Response is ESC [ ?1 ; Ps C
                Ps = 0 Base VT100, no options
                        1 Processor option (STP)
                        2 Advanced Video option (AVO)
                        3 AVO and STP
                        4 Graphocs processor option (GO)
                        5 GO and STP
                        6 GO and AVO
                        7 GO, STP, and AVO
        Alternately invoked by ESC Z (not recommended.) Response is the same.

        Reset
                ESC c

        Confidence Tests
        Fill Screen with "Es" ESC # 8
        Invoke Test(s) ESC [ 2 ; Ps y
        Ps = 1 Power-up self test
                                                (ROM checksum, RAM, NVR,
                                                keyboard and AVO if installed)
                2(loop back connector required) Data Loop Back
                4(loop back connector required) ETA Modern Control Test
                8 Repeat selected test(s)
                                                indefinitely
                                                (until failure or power off)

VT52 Compatible Mode
        Cursor Up ESC A
        Cursor Down ESC B
        Cursor Right ESC C
        Cursor Left ESC D
        Select Special Graphics character set ESC F
        Select ASCII character set ESC G
        Cursor to home ESC H
        Reverse line feed ESC I
        Erase to end of screen ESC J
        Erase to end of line ESC K
        Direct cursor address ESC Ylc (see note 1)
        Identify ESC Z (see note 2)
        Enter alternate keypad mode ESC =
        Exit alternate keypad mode ESC >
        Enter ANSI mode ESC <

        NOTE 1: Line and column numbers for direct cursor address are single
                character codes whose values are the desired number plus
                37 (in Octal). Line and column numbers start at 1.
        NOTE 2: Response to ESC Z is ESC / Z.

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Simon Chan chan@ece.scarolina.edu
Department of Electrical & Computer Engineering
Swearingen Engineering Centre
University of South Carolina
Coulmbia, South Carolina 29208
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

From: gwyn@smoke.brl.mil (Doug Gwyn)
Newsgroups: comp.terminals
Subject: Re: VT100 Reference Card !!
Keywords: vt100 terminal escape codes
Message-ID: <19629@smoke.brl.mil>
Date: 1 Feb 1993 15:01:49 GMT
References: <chan.728236678@hertz>
Organization: U.S. Army Ballistic Research Lab, APG MD.
Lines: 25

In article <chan.728236678@hertz> chan@ece.scarolina.edu (Simon Chan) writes:
>Taken from VT100 Programming Reference Card (DIGITAL)

Note that EK-VT100-RC-001 contains several errors and omissions.
The errors appear to all be fixed in the posted version.
Here are some additions:

        Parameters to Direct cursor addressing can be omitted if 1.
        "Index" is broken if NEWLINE is enabled (set-up).
        "Reverse index" scrolls up retaining the same column.

        CHARACTER SET DESIGNATORS: G0 = Shift-In, G1 = Shift-Out

> ANSI/VT52 mode ANSI N/A VT52 ESC [?2l
        ANSI/VT52 mode ANSI ESC < VT52 ESC [?2l
        Modes can be combined using ";", for example "ESC [ ? 3 ; 4 ; 7 h"

        CONFIDENCE TESTS: Parameter bits are summed into one parameter.

        Hardcopy ESC # 7
        Graphic processor ON ESC 1
        Graphic processor OFF ESC 2

The reference card showed incorrect graphics for octal code 140; its
correct graphic is ` (accent grave).