Control Shift Keys [+]; Control Ctrl-Alt-Del [+] - Husky MP2500 Manual

Control shift keys [+]

Entry
Exit
Description

Control Ctrl-Alt-Del [+]

Entry
Exit
Chapter 27: INT 16H, Keyboard Handler
AH=21H
AL=keys to control
BL=shift state required
Returns nothing
Disables shift keys and sets them to a specified state.
The user cannot override the state of disabled keys.
In both AL and BL, individual bits correspond to
different keys, as follows:
Bit Key
7 INS
6 Caps Lock (WC)
5 Num Lock
4 Scroll lock (WC)
3 ALT
2 CTRL
Left S
1
Right S
0
Bits set in AL specify keys to disable. Bits set in BL
specify the state to set those disabled keys in.
AH=22H
AL=control (0=enable, non-0=disable)
BH=7
BL=8
CH=9
CL=10H
DH=11H
DL=12H
AL=0 (success).
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