Index for interrupt INT FD

Table of Contents by Order
FD - INT FD - reserved for user interrupt
FD - INT FD - DoubleDOS - ???
FD - INT FD - Sanyo MBC-550/555 - IRQ5 - FLOPPY DISK CONTROLLER
FD - INT FD - TFPCX - INSTALLATION CHECK
FD01 - INT FD - TFPCX - TEST FOR CHARACTER WAITING
FD02 - INT FD - TFPCX - GET CHARACTER
FD03 - INT FD - TFPCX - OUTPUT CHARACTER
FDFE - INT FD - TFPCX - GET VERSION

INT FD - reserved for user interrupt

INT FD - DoubleDOS - ???

INT FD - Sanyo MBC-550/555 - IRQ5 - FLOPPY DISK CONTROLLER
SeeAlso: INT 0D"IRQ5",INT FC"Sanyo",INT FE"Sanyo"

INT FD - TFPCX - INSTALLATION CHECK
	AH = function (also see separate entries below)
Program: TFPCX is an interface between modem and terminal program for packet-
	  radio communications
InstallCheck:	test for the string "N5NX" three bytes beyond the interrupt
	  handler
Range:	INT FD is the default, but may be changed, so the full installation
	 check consists of scanning for the signature
Note:	TFPCX returns AX=FFFFh on any unsupported function call
SeeAlso: AH=01h,AH=03h,AH=FEh

INT FD - TFPCX - TEST FOR CHARACTER WAITING
	AH = 01h
Return: AX = status
	    0000h no characters waiting
	    0001h character available for input
Program: TFPCX is an interface between modem and terminal program for packet-
	  radio communications
SeeAlso: AH=02h

INT FD - TFPCX - GET CHARACTER
	AH = 02h
Return: AL = character
Notes:	this call is only allowed if AH=01h indicated that a character is
	  available
	all available characters should be read before sending any additional
	  characters
SeeAlso: AH=01h,AH=03h

INT FD - TFPCX - OUTPUT CHARACTER
	AH = 03h
	AL = character to send
Return: nothing
SeeAlso: AH=02h

INT FD - TFPCX - GET VERSION
	AH = FEh
Return: AH = major version
	AL = minor version
Program: TFPCX is an interface between modem and terminal program for packet-
	  radio communications
SeeAlso: AH=01h,AH=03h