Category: vendor-specific BIOS extensions

INT 61 - Atari Portfolio - SET PERIPHERAL ID BYTE

	AH = 1Bh
	AL = which peripheral to set
	    00h serial
	    01h parallel
	DL = peripheral ID
Return: nothing
Desc:	specify that a peripheral is compatible with the BIOS serial or
	  parallel services
SeeAlso: AH=1Ah"Portfolio",AH=1Ch"Portfolio"