Category: <b>serial I/O</b>
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<pre><b>INT 14 - Tandy 2000 - SERIAL - FLUSH COMM BUFFER</b>

	AH = 04h
	DL = port number
	DH = protocol
	    bit 0: use XON/XOFF on received data
	    bit 1: use XON/XOFF when transmitting
Return: nothing
Desc:	clears the serial interface buffer
Note:	this interrupt is identical to INT 53 on the Tandy 2000
SeeAlso: AH=00h"Tandy 2000",INT 53"Tandy 2000"
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