Consider an instructionADD R1 , R2. ( Add the contents of Register R2 to the contents of Register R1)Give the steps (micro operations) involved in the execution of an above given instruction.Answer:MAR ← PCMDR ← Mem[MAR]IR← MDRR1← R1+R2PC← PC+4

Consider an instruction ADD R1 , R2. ( Add the contents of Register R2 to the contents of Register R1)The following steps are used to execute it over the given path. Assume that PC is incremented appropriately.MAR ← PCR1← R1+R2PC← PC+4MDR ← Mem[MAR]IR← MDRIdentify the correct order of execution of the above steps.

Consider an instructionADD R1 , R2. ( Add the contents of Register R2 to the contents of Register R1)Give the steps (micro operations) involved in the execution of an above given instruction.

Consider the instructions in the given figure and find the contents of the CPU registers - PC, MAR, MDR, IR, R1 and R2.

If the instruction involves reading from or writing to memory, the __________ register will be used to hold the address, and the __________ register will hold the data to be written or read.  PC and DRIMAR and IRMAR and MDRMAR and DATA BusALU and DR

Which of the following operation performed by ADD M instruction? A) Add the contents of memory location (specified BC register pair) to the accumulator. B) Add the contents of memory location (specified HL register pair) to the accumulator. C) Add the contents of memory location (specified DE register pair) to the accumulator. D) Add the contents of B register to the accumulator.