An instruction at address 012 in the basic computer has I = 1, an operation code of the ADD instruction, and an address part equal to 083 (all numbers are in hexadecimal). The memory word at address 083 contains the word 0204, memory word at address 204 contains the word B82F, and the content of AC is A973. Go over the instruction cycle and determine the contents of the following registers at the end of the execute phase: PC, E, AR, DR, AC, and IR. rooperation(s) PC EARDRAC IR Initial TO T1 T2 T3 T4 T5 T6 T7 012-- A973