comp logic 3



8.


register


       ----+- X ---+- X -+-----
	   |	   |	 |
	   |	   |	 |
	   +-------------+
                   |
                   |
     reset   X ----+





9.

	+-------------------------------------+
	| 				      |
	|                                     |
	+-----                                |
		R1 -----+		      |
			|		      |
			|		      |
			+----- and ---- Rx ---+
			|
			|...... or ....
		R2 -----+




load registers R1, R2,



select function e.g and

reset/set Rx			(clock signal A)	logic change  low-high-low

reset/set R1 from Rx		(clock signal B)	logic change  low-high-low







see also 'comp logic' and 'comp logic 2'