INT 61 - Atari Portfolio - GET/SET CLOCK TICK SPEED                             
	AH = 1Eh
	AL = function
	    00h get speed
	    01h set speed
		BX = clock tick speed
		    0000h tick every 128 seconds
		    0001h tick every second
Return: if function 00h
	    BX = clock tick speed
Note:	the faster tick speed also uses more power
SeeAlso: AH=00h"Portfolio",AH=1Ch"Portfolio",AH=1Fh"Portfolio"