the diagram show below is a small microarchitecture. the datapath consists of six (6) general purpose register: R0, R1, R2, R3, R4 and R5. R5 is permenantly set to +1

Output Erables A-bus B-bus Jeon A-bus B-bus F1Fo 00 01 10 11 Function AND (A,B) XNOR (AB) NOR (A,B) NOT (B) Six 4 bit register 0 Write Enables 2 3 4 5 C-bus F1FO ALU Write a control sequence to compute RO - (R1 - R2)(R1 - R3 R3 Write Enables 0 1 2 3 A-Bus Enables 0 1 3 4 B-Bus Enables 0 1 2 3 ALU F1 FO 4 5 5 01 4 5 Output Erables A-bus B-bus Jeon A-bus B-bus F1Fo 00 01 10 11 Function AND (A,B) XNOR (AB) NOR (A,B) NOT (B) Six 4 bit register 0 Write Enables 2 3 4 5 C-bus F1FO ALU Write a control sequence to compute RO - (R1 - R2)(R1 - R3 R3 Write Enables 0 1 2 3 A-Bus Enables 0 1 3 4 B-Bus Enables 0 1 2 3 ALU F1 FO 4 5 5 01 4 5