Topic : The ATARI Compendium
Author : Scott Sanders / JAY Software
Version : 1.25 (20/6/2003)
Subject : Documentation
Nodes : 1117
Index Size : 32614
HCP-Version : 6
Compiled on : Atari
@charset : UTF-8
@lang : en
@default :
@help : %About
@options : +g -i -t4 +y +z
@width : 100
View Ref-File Appendix F
IKBD Scan CodesThe AES, VDI, and BIOS, all contain functions which return scan codes
from the Intelligent Keyboard Controller (IKBD). These scan codes can be
used to determine exactly which key was struck (not simply the ASCII
value).
One thing that must be considered when relying on scan codes is that they
identify a physical vector on the keyboard, not a key definition. The
scancode for a letter on an American keyboard, for instance, may be
different than the scancode for the same letter on a German keyboard. The
XBIOS function Keytbl() can be used to look up the ASCII value assigned to
a scancode to ensure that keystrokes are correctly processed.
Scancodes for keyboard modifiers (SHIFT, ALT, etc.) are never returned by
an OS call. However, when handling the IKBD directly, the following
scancodes may be encountered:
Key Scancode
Left-Shift 42 (0x2A)
Right-Shift 54 (0x36)
Control 29 (0x1D)
Alternate 56 (0x38)
Caps Lock 58 (0x3A)
The values shown in the following table contain the IKBD scancode of each
keyboard key in the high BYTE and the ASCII code in the low BYTE. Keys
with no corresponding ASCII value will always have zero as the low byte.
These values are valid for all Atari computers with US keyboards:
Key Unshifted Key Shifted w/CTRL w/ALTa 0x1E61 A 0x1E41 0x1E01 0x1E00
b 0x3062 B 0x3042 0x3002 0x3000
c 0x2E63 C 0x2E43 0x2E03 0x2E00
d 0x2064 D 0x2044 0x2004 0x2000
e 0x1265 E 0x1245 0x1205 0x1200
f 0x2166 F 0x2146 0x2106 0x2100
g 0x2267 G 0x2247 0x2207 0x2200
h 0x2368 H 0x2348 0x2308 0x2300
i 0x1769 I 0x1749 0x1709 0x1700
j 0x246A J 0x244A 0x240A 0x2400
k 0x256B K 0x254B 0x250B 0x2500
l 0x266C L 0x264C 0x260C 0x2600
m 0x326D M 0x324D 0x320D 0x3200
n 0x316E N 0x314E 0x310E 0x3100
o 0x186F O 0x184F 0x180F 0x1800
p 0x1970 P 0x1950 0x1910 0x1900
q 0x1071 Q 0x1051 0x1011 0x1000
r 0x1372 R 0x1352 0x1312 0x1300
s 0x1F73 S 0x1F53 0x1F13 0x1F00
t 0x1474 T 0x1454 0x1414 0x1400
u 0x1675 U 0x1655 0x1615 0x1600
v 0x2F76 V 0x2F56 0x2F16 0x2F00
w 0x1177 W 0x1157 0x1117 0x1100
x 0x2D78 X 0x2D58 0x2D18 0x2D00
y 0x1579 Y 0x1559 0x1519 0x1500
z 0x2C7A Z 0x2C5A 0x2C1A 0x2C00
1 0x0231 ! 0x0221 0x0211 0x7800
2 0x0332 @ 0x0340 0x0300 0x7900
3 0x0433 # 0x0423 0x0413 0x7A00
4 0x0534 $ 0x0524 0x0514 0x7B00
5 0x0635 % 0x0625 0x0615 0x7C00
6 0x0736 ^ 0x075E 0x071E 0x7D00
7 0x0837 & 0x0826 0x0817 0x7E00
8 0x0938 * 0x092A 0x0918 0x7F00
9 0x0A39 ( 0x0A28 0x0A19 0x8000
0 0x0B30 ) 0x0B29 0x0B10 0x8100
- 0x0C2D _ 0x0C5F 0x0C1F 0x8200
= 0x0D3D + 0x0D2B 0x0D1D 0x8300
` 0x2960 ~ 0x297E 0x2900 0x2960
\ 0x2B5C | 0x2B7C 0x2B1C 0x2B5C
[ 0x1A5B { 0x1A7B 0x1A1B 0x1A5B
] 0x1B5D } 0x1B7D 0x1B1D 0x1B5D
; 0x273B : 0x273A 0x271B 0x273B
' 0x2827 " 0x2822 0x2807 0x2827
, 0x332C < 0x333C 0x330C 0x332C
. 0x342E > 0x343E 0x340E 0x342E
/ 0x352F ? 0x353F 0x250F 0x352E
space 0x3920 0x3920 0x3900 0x3920
esc 0x011B 0x011B 0x011B 0x011B
bksp 0x0E08 0x0E08 0x0E08 0x0E08
del 0x537F 0x537F 0x531F 0x537F
return 0x1C0D 0x1C0D 0x1C0A 0x1C0D
tab 0x0F09 0x0F09 0x0F09 0x0F09
Nmpad ( 0x6328 0x6328 0x6308 0x6328
Nmpad ) 0x6429 0x6429 0x6409 0x6429
Nmpad / 0x652F 0x652F 0x650F 0x652F
Nmpad * 0x662A 0x662A 0x660A 0x662A
Nmpad _ 0x4A2D 0x4A2D 0x4A1F 0x4A2D
Nmpad + 0x4E2B 0x4E2B 0x3E0B 0x4E2B
Nmpad . 0x712E 0x712E 0x710E 0x712E
Nmpad enter 0x720D 0x720D 0x720A 0x720D
Nmpad 0 0x7030 0x7030 0x7010 0x7030 ∙Atari computers with TOS 2.0 or higher
do not generate scan codes for the ALT-Numeric
Keypad numbers. Instead they allow the user to
enter any key by holding ALT while typing the
ASCII code number and than releasing ALT to
generate the keypress.
Nmpad 1 0x6D31 0x6D31 0x6D11 0x6D31 ∙Atari computers with TOS 2.0 or higher
do not generate scan codes for the ALT-Numeric
Keypad numbers. Instead they allow the user to
enter any key by holding ALT while typing the
ASCII code number and than releasing ALT to
generate the keypress.
Nmpad 2 0x6E32 0x6E32 0x6E00 0x6E32 ∙Atari computers with TOS 2.0 or higher
do not generate scan codes for the ALT-Numeric
Keypad numbers. Instead they allow the user to
enter any key by holding ALT while typing the
ASCII code number and than releasing ALT to
generate the keypress.
Nmpad 3 0x6F33 0x6F33 0x6F13 0x6F33 ∙Atari computers with TOS 2.0 or higher
do not generate scan codes for the ALT-Numeric
Keypad numbers. Instead they allow the user to
enter any key by holding ALT while typing the
ASCII code number and than releasing ALT to
generate the keypress.
Nmpad 4 0x6A34 0x6A34 0x6A14 0x6A34 ∙Atari computers with TOS 2.0 or higher
do not generate scan codes for the ALT-Numeric
Keypad numbers. Instead they allow the user to
enter any key by holding ALT while typing the
ASCII code number and than releasing ALT to
generate the keypress.
Nmpad 5 0x6B35 0x6B35 0x6B15 0x6B35 ∙Atari computers with TOS 2.0 or higher
do not generate scan codes for the ALT-Numeric
Keypad numbers. Instead they allow the user to
enter any key by holding ALT while typing the
ASCII code number and than releasing ALT to
generate the keypress.
Nmpad 6 0x6C36 0x6C36 0x6C1E 0x6C36 ∙Atari computers with TOS 2.0 or higher
do not generate scan codes for the ALT-Numeric
Keypad numbers. Instead they allow the user to
enter any key by holding ALT while typing the
ASCII code number and than releasing ALT to
generate the keypress.
Nmpad 7 0x6737 0x6737 0x6717 0x6737 ∙Atari computers with TOS 2.0 or higher
do not generate scan codes for the ALT-Numeric
Keypad numbers. Instead they allow the user to
enter any key by holding ALT while typing the
ASCII code number and than releasing ALT to
generate the keypress.
Nmpad 8 0x6838 0x6838 0x6818 0x6838 ∙Atari computers with TOS 2.0 or higher
do not generate scan codes for the ALT-Numeric
Keypad numbers. Instead they allow the user to
enter any key by holding ALT while typing the
ASCII code number and than releasing ALT to
generate the keypress.
Nmpad 9 0x6939 0x6939 0x6919 0x6939 ∙Atari computers with TOS 2.0 or higher
do not generate scan codes for the ALT-Numeric
Keypad numbers. Instead they allow the user to
enter any key by holding ALT while typing the
ASCII code number and than releasing ALT to
generate the keypress.
help 0x6200 0x6200 0x6200 Alt-Help ∙∙This key doesn't generate a keycode, rather
it triggers the screen dump interrupt.
undo 0x6100 0x6100 0x6100 0x6100
insert 0x5200 0x5230 0x5200 Left Mouse Button ∙∙∙These keycodes are mouse-equivalent keys
and generate mouse events rather than keycodes.
clr/ Home 0x4700 0x4737 0x7700 Right Mouse Button∙∙∙These keycodes are mouse-equivalent keys
and generate mouse events rather than keycodes.
up-arrow 0x4800 0x4838 0x4800 Mouse Up ∙∙∙These keycodes are mouse-equivalent keys
and generate mouse events rather than keycodes.
down-arrow 0x5000 0x5032 0x5000 Mouse Down ∙∙∙These keycodes are mouse-equivalent keys
and generate mouse events rather than keycodes.
left-arrow 0x4B00 0x4B34 0x7300 Mouse Left ∙∙∙These keycodes are mouse-equivalent keys
and generate mouse events rather than keycodes.
right-arrow 0x4D00 0x4D36 0x7400 Mouse Right ∙∙∙These keycodes are mouse-equivalent keys
and generate mouse events rather than keycodes.
F1 0x3B00 F11 0x5400 0x3B00 0x3B00
F2 0x3C00 F12 0x5500 0x3C00 0x3C00
F3 0x3D00 F13 0x5600 0x3D00 0x3D00
F4 0x3E00 F14 0x5700 0x3E00 0x3E00
F5 0x3F00 F15 0x5800 0x3F00 0x3F00
F6 0x4000 F16 0x5900 0x4000 0x4000
F7 0x4100 F17 0x5A00 0x4100 0x4100
F8 0x4200 F18 0x5B00 0x4200 0x4200
F9 0x4300 F19 0x5C00 0x4300 0x4300
F10 0x4400 F20 0x5D00 0x4400 0x4400