INT E0 - DR Multiuser DOS - "A_CONFIG" - GET/SET AUX DEVICE PARAMETERS
	CL = B0h
	DX:DX -> AUX device parameter block (see #04053)
Return: AX = status
	    0000h successful
		parameter block updated
	    FFFFh failed
		CX = error code
Note:	also supported by REAL/32
SeeAlso: INT E0/CL=A5h,INT E0/CL=B1h


Format of DR Multiuser DOS AUX device parameter block:
Offset	Size	Description	(Table 04053)
 00h	BYTE	function (00h get, 01h set)
 01h	BYTE	baud rate (see #04055) FFh = don't change/unknown
 02h	BYTE	parity (see #04054)
 03h	BYTE	stop bits (00h one, 01h 1.5, 02h two, FFh unknown/don't change)
 04h	BYTE	data bits (05h-08h or FFh unknown/don't change)
 05h	BYTE	handshake (00h none, 01h DTS/DSR, 02h RTS/CTS, 04h XON/XOFF,
		FFh unknown/don't change)
 06h	BYTE	XON character, FFh unknown/don't change
 07h	BYTE	XOFF character, FFh unknown/don't change


(Table 04054)
Values for DR Multiuser DOS AUX parity:
 00h	none
 01h	odd
 02h	none
 03h	even
 04h	stick parity bit
 FFh	don't change/unknown
SeeAlso: #04053,#04055


(Table 04055)
Values for DR Multiuser DOS AUX baud rate:
 00h	50 baud
 01h	62.5 baud
 02h	75 baud
 03h	110 baud
 04h	134.5 baud
 05h	150 baud
 06h	200 baud
 07h	300 baud
 08h	600 baud
 09h	1200 baud
 0Ah	1800 baud
 0Bh	2000 baud
 0Ch	2400 baud
 0Dh	3600 baud
 0Eh	4800 baud
 0Fh	7200 baud
 10h	9600 baud
 11h	19200 baud
 12h	38400 baud
 13h	56000 baud
 14h	76800 baud
 15h	115200 baud
SeeAlso: #04053,#04054