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Index > Linux > screen control and a very old post

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MajorDill



Joined: 01 Nov 2010
Posts: 20
MajorDill
I was looking thru old posts and found the one about using escape sequences (instead of ncurses) to control the screen. When I tried to compile the example code I get:

clear_screen: db ESC,"[2J"
error: undefined symbol 'ESC'

the man pages on control_code does not seem to shed any light on my problem.

Any help?

the old post is "Terminals and escape sequences" (not sure how to link it)
Post 27 Jan 2015, 16:55
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JohnFound



Joined: 16 Jun 2003
Posts: 3502
Location: Bulgaria
JohnFound
Code:
ESC=27    
Post 27 Jan 2015, 16:57
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gens



Joined: 18 Feb 2013
Posts: 161
gens
a list of escape codes for a "normal" terminal
http://www.climagic.org/mirrors/VT100_Escape_Codes.html

ESC is in man ascii
Post 27 Jan 2015, 18:05
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Rem-



Joined: 29 Mar 2013
Posts: 11
Location: Canada
Rem-
It's the first time I use FASM and this code works well! Smile
Code:
----------------------[clear_screen]------------------------------------

ESC equ 1bh
clear_screen: db ESC,"[2J"  ; screen clearing sequence
clear_screenSize = $-clear_screen
------------------------------------------------------------------------


----------------------[clear_screen2]-----------------------------------

clear_screen2: db 1bh,"[2J"  ; screen clearing sequence
clear_screenSize2 = $-clear_screen2
------------------------------------------------------------------------


---------------------[cursor_position]----------------------------------

cursor_position: db 1bh,"[5;1HMy message is here",10   ; row 5, column 1
cursor_positionSize = $-cursor_position
------------------------------------------------------------------------


-----------------------[text_color]-------------------------------------

text_color db 1bh,"[0;31;40mHello world!",10  ; red color
text_colorSize = $-text_color
------------------------------------------------------------------------
    

More info here --> http://bogdro.ciki.me/linux/tryb_txt_linux_en.html
Post 28 Jan 2015, 05:58
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Endre



Joined: 29 Dec 2003
Posts: 212
Location: Budapest, Hungary
Endre
The link
Post 28 Jan 2015, 09:13
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MajorDill



Joined: 01 Nov 2010
Posts: 20
MajorDill
that got it...thanks
Post 29 Jan 2015, 06:10
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