Int 16h Functions

AH = 00h: Read Character From Keyboard Input Buffer

AH = 01h: Report If Character Available

AH = 02h: Get Shift Status

AH = 03h: Set Typematic Rate and Key Delay

AH = 05h: Write Character to Keyboard Input Buffer

AH = 10h: Extended Read Character from Keyboard Input Buffer

AH = 11h: Extended Report if Character Available

AH = 12h: Get Extended Keyboard Status

AH = 13h: Wait for Keyboard Event

AH = 14h: Wait for Keyboard Event, Variable Timeout