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14F4FF

Category: serial I/O

INT 14 - 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
SeeAlso: AH=36h"ComShare",AH=F9h,AH=FCh

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