Int 14/AH=03h/DX=FFFFh

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Connection Manager - RETURN COMMUNICATION PORT STATUS

AH = 03h
DX = FFFFh
AL = connection ID

Return:
AH = return code (00h-02h) (see #00303) BH = line status (see #00306) BL = modem status (see #00305) (only bits 4,5,7; all others zero)

Notes: If DX is 0-3 on entry, Connection Manager emulates the standard BIOS function, but redirects the port over the network; if DX is any other value, the call is chained

See Also: AH=00h/DX=FFFFh - AH=04h/DX=FFFFh - AH=0Ah/DX=FFFFh

Bitfields for Connection Manager line status: Bit(s) Description (Table 00306) 7 CTS changed 6 current CTS state 5 timeout 4 break 3 framing error 2 parity error 1 overrun 0 current carrier state (0 active, 1 no carrier)

Category: Network - Int 14h - C

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