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This document explains the how the ANSI escape sequences are
defined for the IBM PC.
Notes:
1. The default value is used when no explicit value is given
or a value of zero is given.
2. Pn - Numeric parameter. A decimal number specified
with ASCII digits.
3. Ps - Selective parameter. Any decimal number that is
is used to select a subfunction. Multiple subfunctions
may be selected by separating the parameters with
semi-colons.
C U R S O R F U N C T I O N S
CUP - Cursor Postion
ESC [ Pl ; Pc H
HVP - Horizontal & Vertical Postion
ESC [ Pl ; Pc f
CUP and HVP move the cursor to the position specified by
the parameters. The first parameter specifies the line number
and the second parameter specifies the column number. The
default value is one. When no parameters are given the cursor
is moved to the home postion.
CUU - Cursor Up
ESC [ Pn A
Moves the cursor up one line without changing columns. The
value of Pn determines the number of lines moved. The default
value for Pn is one. This sequence is ignored if the cursor
is already on the top line.
CUD - Cursor Down
ESC [ Pn B
Moves the cursor down one line without changing columns.
The value of Pn determines the number of lines moved. The
default value for Pn is one. This sequence is ignored if the
cursor is already on the bottom line.
CUF - Cursor Forward
ESC [ Pn C
Moves the cursor forword one column without changing lines.
The value of Pn determines the number of columns moved. The
default value for Pn is one. This sequence is ignored if the
cursor is already in the rightmost column.
ESC [ Pn D
Moves the cursor back one column without changing lines. The
value of Pn determines the number of columns moved. The default
value for Pn is one. This sequence is ignored if the cursor
is already in the leftmost column.
DSR - Device Status Report
ESC [ 6 n
The console driver will output a CPR sequence on receipt of
DSR.
CPR - Cursor Position Report (from console driver to system)
ESC [ Pn ; Pn R
The CPR sequence reports current cursor position via
standard input. The first parameter specifies the current
line and the second parameter specifies the current column.
SCP - Save Cursor Postion
ESC [ s
The current cursor position is saved. This cursor position
can be restored with the RCP sequence.
RCP - Restore cursor position
ESC [ u
Restores the cursor position to the value it had when the
console driver received the SCP sequence.
E R A S I N G
ED - Erase Display
ESC [ 2 J
Erases all of the screen and the cursor goes to the home
position.
EL - Erase Line
ESC [ K
Erases from the cursor to the end of the line and includes
the cursor position.
M O D E S O F O P E R A T I O N
SGR - Set Graphics Rendition
ESC [ Ps ; ... ; Ps m
Invokes the graphic rendition specified by the parameter(s).
All following characters are rendered according to the
parameter(s) until the next occurence of SGR.
Parameter Parameter Function
0 All Attributes Off
1 Bold On
4 Underscore On (monochrome displays
only)
5 Blink On
7 Reverse Video On
8 Concealed On (ISO 6429 standard)
30 Black foreground (ISO 6429 standard)
31 Red foreground (ISO 6429 standard)
32 Green foreground (ISO 6429 standard)
33 Yellow foreground (ISO 6429 standard)
34 Blue foreground (ISO 6429 standard)
35 Magenta foreground (ISO 6429 standard)
36 Cyan foreground (ISO 6429 standard)
37 White foregound (ISO 6429 standard)
40 Black background (ISO 6429 standard)
41 Red background (ISO 6429 standard)
42 Green background (ISO 6429 standard)
43 Yellow background (ISO 6429 standard)
44 Blue background (ISO 6429 standard)
45 Magenta background (ISO 6429 standard)
46 Cyan background (ISO 6429 standard)
47 White backgound (ISO 6429 standard)
SM - Set Mode (IBM/MICROSOFT Private)
ESC [ = Ps h
or ESC [ = h
or ESC [ = 0 h
or ESC [ ? 7 h
Invokes the screen width or type specified by the parameter.
Parameter Parameter Function
0 40 x 25 black and white
1 40 x 25 color
2 80 x 25 black and white
3 80 x 25 color
4 320 x 200 color
5 320 x 200 black and white
6 640 x 200 black and white
7 wrap at end of line
RM - Reset Mode
ESC [ = Ps l
or ESC [ = l
or ESC [ = 0 l
or ESC [ ? 7 l
Parameters are the same as SM (Set Mode) except that
parameter 7 will reset wrap at end of line mode.
K E Y B O A R D R E - A S S I G N M E N T
Although not part of the ANSI 3.64-1979 or ISO 6429 standard
the IBM PC keyboard re-assignment was done in a compatible
way.
The control sequence is:
ESC [ Pn ; Pn ; ... Pn p
or ESC [ "string" ; p
or ESC [ Pn ; "string" ; Pn ; Pn ; "string" ; Pn p
or any other combination of strings and decimal numbers
The final code in the control sequence ("p") is one reserved
for private use the by ANSI 3.64-1979 standard.
The first ASCII code in the control sequence defines which
code is being mapped. The remaining numbers define the
sequence of ASCII codes generated when this key is
intercepted.
To every rule there is an exception, however! If the first
code in the sequence is zero (NUL) then the first and second
code make up an extended ASCII re-definition.
Here are some examples:
1. Reassign the Q and q key to the A and a key (and the other
way as well):
ESC [ 6 5 ; 8 1 p A becomes Q
ESC [ 9 7 ; 1 1 3 p a becomes q
ESC [ 8 1 ; 6 5 p Q becomes A
ESC [ 1 1 3 ; 9 7 p q becomes a
2. Reassign the F10 key to to a dir command followed by a
carriage return:
ESC [ 0 ; 6 8 ; " d i r " ; 1 3 p
The 0;68 is the extended ASCII code for the F10 key. 13
decimal is a carriage return