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AH = 23h AL = logical port (01h COM1, 02h COM2) DH = user ID DL = process ID (DH,DL both FFh for current task)
Return:
AL = MW386 port mode (see #00351) CX = MW386 port number DH = owner's user ID DL = owner's task ID
See Also: AH=20h"Alloy" - INT 17/AH=8Bh"Alloy"
Bitfields for MW386 port mode: Bit(s) Description (Table 00351) 0 port is shared (spooler only) 1 port is spooled instead of direct (spooler only) 2 port is assigned as logical COM device, not in spooler 3 port is free
Category: Serial I/O - Int 14h - A
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