An instruction at address $021$ in the basic computer has I $=0,$ an operation

code of the AND instruction, and an address part equal to $083($all numbers are in hexadecimal$).$ The memory word at address $083$ contains the operand B$8$F$2$ and the content of AC is A$937.$ Go over the instruction cycle and determine the contents of the following registers at the end of the execute phase: PC$,$ AR$,$ DR$,$ AC$,$ and IR$.$ Repeat the problem six more times starting with an operation code of another memory$-$reference instruction.