INT 14 - COURIERS.COM - DECONFIGURE PORTIBM PC Portable (uses same BIOS as XT)
	AH = 8Dh
Return: nothing
SeeAlso: AH=82h"COURIERS"
                                                                                

INT 14 - COMM-DRV v14.0 - WRITE UART(Universal Asyncronous Receiver/Transmitter)  A peripheral device which converts a sequence of bytes into a serial bit stream at a programmable rate, and vice versa.  This device is what makes an RS-232 serial port function.  See also USART. REGISTER
	AH = 8Dh
	AL = register offset
	BL = new value for UART(Universal Asyncronous Receiver/Transmitter)  A peripheral device which converts a sequence of bytes into a serial bit stream at a programmable rate, and vice versa.  This device is what makes an RS-232 serial port function.  See also USART. register
	DX = port number
Return: AH bit 7 set on error
	AH bit 7 clear if successful
SeeAlso: AH=8Ch"COMM-DRV"