Int 14/AX=F4FFh

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IBM/Yale EBIOS SERIAL I/O - INSTALLATION CHECK

AX = F4FFh
DX = port (00h-03h)

Return:
CF clear if present AX = 0000h CF set if not present AX <> 0000h

See Also: AH=36h"ComShare" - AH=F9h - AH=FCh

Category: Serial I/O - Int 14h - I

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