INT 61 - Atari Portfolio - GET/SET SCREEN MODE                                  
	AH = 0Eh
	AL = function
	    00h get mode
	    01h set mode
		DL = new mode (see #03460)
Return: DL = current/old mode
Note:	if changing the mode places the cursor position or virtual screen
	  origin outside the displayed area, the screen origin will be reset
	  to (0,0), the screen cleared, and the cursor position set to (0,0)
SeeAlso: AH=00h"Portfolio",AH=0Dh"Portfolio",AH=0Fh"Portfolio",INT 10/AH=00h


Bitfields for Atari Portfolio screen mode:
Bit(s)	Description	(Table 03460)
 0	40x8 mode instead of 80x25
 1	tracked mode
 7	graphics
Note:	the above bits are mutually exclusive