Category: <b>serial I/O</b>
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<pre><b>INT 14 - COMM-DRV v14.0 - FLUSH COMMUNICATION BUFFERS</b>

	AH = 83h
	DX = port number
	AL = subfunction
	    00h flush input buffer
	    01h flush output buffer
	    02h flush both buffers
Return: AH bit 7 set on error
	AH bit 7 clear if successful
SeeAlso: AH=81h"COMM-DRV",AH=84h"COMM-DRV"
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