INT 61 - Atari Portfolio - SERVICE INITIALIZATION                               
	AH = 00h
Return: nothing
Note:	applications using any Portfolio INT 61 calls should call this function
	  exactly once at startup
SeeAlso: AH=07h"Portfolio",AH=09h"Portfolio",AH=0Dh"Portfolio"
SeeAlso: AH=11h"Portfolio",AH=15h"Portfolio",AH=19h"Portfolio"
SeeAlso: AH=1Bh"Portfolio",AH=24h"Portfolio",AH=2Ch"Portfolio"
SeeAlso: AH=30h"Portfolio"