4. Complete the following table by filling missed codes (10-pt) RIN IR MAR MBR AC Step (initial values) Fetch PC 100 100 100 100 IR 100 100 Decode MARPC -- MIMAR] PC PC + 1 MAR IR(11-01 (decode IR[15-12) MBR - MMARI AC MBR 101 101 101 101 1109 109 T109 1109 1109 1109 109 109 Get operand Executo 109 0014 0014 5. Additional Credits - (6-pt) List all control signals for executing MAR - X, including PO ~ P5, MR AND M