Assignment Three -1. The following sequence of steps in the instruction cycle: PCMAR MDRIR IR [address]MAR MDR A PC+1 PC What instruction does it represent? The possibilities are: LDA, STO, SUB, ADD, IN, OUT, HLT, BR, BRP, and BRZ. -2. The following sequence of steps in the instruction cycle PCMAR MDR IR IR [address] MAR A-MDR A PC+1 PC What instruction does it represent? 3. The following sequence of steps in the instruction cycle PCMAR MDR IR IR [address] PC What instruction does it represent? 4. The following sequence of steps in the instruction cycle PC MAR MDR IR lfA=0 Then IR [address] PC Else PC+1 PC What instruction does it represent? 5. The following sequence of steps in the instruction cycle PC MAR MDR IR A Out-basket What instruction does it represent? 8. The following sequence of steps in the instruction cycle PC MAR MDR IR In-basket-A What instruction does it represent? 7. Assume that the content of the accumulator is 10. If you perform the left arithmetic shift of The accumulator by 2 bits, the new content of the accumulator will be a. 40 b. 2 c. 20 d. 5 8. Assume that the content of the accumulator is 25. If you perform the right arithmetic shift of the accumulator by 1 bit, the new content of the accumulator will be a. 50 b. 12 c. 6 d. 12.5 9. In an instruction STO 80, an implicit source address is a. memory location 80 c. the status register . b, the accumulator d. the instruction register 10.In an instruction LDA 80, an implicit destination address is a. memory location 80 c. the status register b. the accumulator d. the instruction register