help please.

01: In the MIPS/ARM processor architecture, that discussed during the course lectures. There are two components have been used in the processor design, the shift left 2 and Sign Extension components Why these two components used in the processor design. Your answer should be very short (no more than there lines.) 02: In the MIPS/ARM processor architecture, there are two separate memories (instruction and data) have been used in the processor design. The design details can be found in the lecture notes. Re-design the processor using a single combined memory (that is the architecture has one memory for both instruction and data). Draw the details of the datapath of the modified design. 01: In the MIPS/ARM processor architecture, that discussed during the course lectures. There are two components have been used in the processor design, the shift left 2 and Sign Extension components Why these two components used in the processor design. Your answer should be very short (no more than there lines.) 02: In the MIPS/ARM processor architecture, there are two separate memories (instruction and data) have been used in the processor design. The design details can be found in the lecture notes. Re-design the processor using a single combined memory (that is the architecture has one memory for both instruction and data). Draw the details of the datapath of the modified design