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Index > OS Construction > Keyboard Scan Code for 16 bit

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Redragon



Joined: 27 Nov 2004
Posts: 101
Location: U.S.
Redragon
I recently cam across some code for 16 bits, i was reading the code for keyboard input and i noticed that it uses

cmp al, 10 ; if al==returnkey then
je .ret ; return
cmp al, 13 ; if al==returnkey then
je .ret ; return
cmp al, 8 ; if al==backspace then
je .back ; do backspace

i searched through all of my keyboard scancode documentation and have not found anywhere, where 8 = backspace and 13 = enter.. if anyone can post or redirect me to the correct scancode it would be much appreciated
Post 18 Jun 2005, 17:51
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crc



Joined: 21 Jun 2003
Posts: 637
Location: Penndel, PA [USA]
crc
Those are the ascii codes (see http://www.lookuptables.com/ for a list of codes). ASCII 9 is backspace, ASCII 10 is line feed, and ASCII 13 is carriage return. You may need to use a table to translate the scancodes to ascii codes, but this is pretty easy to do.

For a list of scan codes, try http://www.win.tue.nl/~aeb/linux/kbd/scancodes-1.html#ss1.4
Post 18 Jun 2005, 18:46
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