1. For the instruction: IF-ICMPEQ offset A) Explain the purpose of each step of the following microprogram: if icmpeq1 if icmpeq2 if icmpeq3 if _icmpeq.4 f_icmpeq5 if_icmpeq6Z- MAR SP SP -1 MAR = SP = SP-1 H MDR; rd OPC TOS TOS = MDR B) Why do we need to temporarily copy TOS in OPC in cycle 4 and later use it for comparison in cycle 6 instead of doing the comparison in one cycle? 1. For the instruction: IF-ICMPEQ offset A) Explain the purpose of each step of the following microprogram: if icmpeq1 if icmpeq2 if icmpeq3 if _icmpeq.4 f_icmpeq5 if_icmpeq6Z- MAR SP SP -1 MAR = SP = SP-1 H MDR; rd OPC TOS TOS = MDR B) Why do we need to temporarily copy TOS in OPC in cycle 4 and later use it for comparison in cycle 6 instead of doing the comparison in one cycle