Read a key from keyboard by user

[daniellam]

Hi,
how to check if the user press the "Page Down" or "Page Up" botton on keyboard by "int 16h"??

Thx!!

[Mark Jones]

Hi, perhaps this will help:

http://www.ctyme.com/rbrown.htm

[Neil]

Here is  a code example ;-


KB:
SUB AH,AH        ;Function wait for
INT 016            ;& get keypress
CMP AL,0          ;Is it extended code?
JNZ KB              ;No, ignore & return to keypress
CMP AH,73        ;'Page up'?
JZ                    ;Yes, do something
CMP AH,81        ;'Page down'?
JZ                     ;Yes, Do something else