Int 15H Function 83H
◄Summary► ◄Notes► ◄Back►
──────────────────────────────────────────────────────────────────────────────
Description: Event Wait [AT] [PS/2]
Requests setting of a semaphore after a specified interval or cancels
a previous request.
Input Output
════════════════════════════ ═══════════════════════════════════
If requesting event wait If called with AL=00H,
AH=83H and function successful
AL=00H Carry flag=clear
CX:DX=microseconds If called with AL=00H, and function
ES:BX=segment:offset of unsuccessful (Event Wait already
semaphore byte active)
If canceling event wait Carry flag=set
AH=83H If called with AL=01H
AL=01H Nothing
-♦-