The Simple Machine register is named areg and its sole purpose is to hold an address, and the LIA and the SIA instruction use it. In other words, the LIA instruction gets the memory word whose address is in the address register and places it in the accumulator. The SIA instruction places the value that is in the accumulator at the address that is in the address register. To place an address into the address register we use the instruction MVAA (move accumulator to address register). Answer the following questions a) Using the mnemonic areg for the address register, write the rtl for the MVAA instruction, the SIA instruction, and the LIA instruction. b) Write the code for the line of code below if the address of RESULT is 0x20 and the value TOTAL is currently in the accumulator (it has not been stored to memory). If you need a temporary memory location, you can use address 0x21) Write your code first using instruction mnemonics, then encoded in hexadecimal. *RESULT = TOTAL