explain with comments

a. Write code to multiply the contents of $50 register by 60 without using multiply instruction. (You can place the result back in $51) (1 marks for correct code, 2 for shortest correct code, 1 Marks for maths) b. Assume $t0=0xOa0b0102 and $t1=0x0000ffff. Evaluate is the value of $t2 for the following instruction? Show, also, the working in binary. (2 Marks) 1. nor $t2, $t1,$t0 2. Xor $t2, $t1, $t0 C. Write the machine code in binary and hexadecimal of the instruction. MUL $a, $b, $c (3 marks) Where a is Your-Roll-No % 10 b is Your-Roll-No %8 c is Your-Roll-No % 6