(2) Study closely the block diagram of Tanenbaum's Machine in the last page.

(2a) Describe precisely the input lines of the box called "Micro seq. logic" in the diagram (from Level 1 machine and MIR register).

(2b) There is no output line from the box called "Micro seq. logic" in the diagram. Design and draw an output line to the proper unit(s) in the diagram.

(2c) Design and build a circuit by using basic gates, AND, NOT, and OR, to implement the "Micro seq. logic" box by analyzing the micro program of Tanenbaum's Machine (1), especially, Lines 2 to 5.