Sample 2B (SP16) Considering the following MIPS code: begin: addi $t0, $zero, 22 move $t1, $zero li $a0, 0 loop: beq $t0, $t1, finish add $t1, $t1, $a0 addi $t0, $t0, -4 addi $a0, $a0, 1 j loop finish: a. Explain the meaning of each instruction by inserting (inline) comments b. Give a possible high-level pseudo-code for the above MIPS code. c. What is the value of $t0 when the program reaches finish? d. What is the value of $a0 when the program reaches finish?