Consider initial values of registers $t1 $t2 $t3 1 7 5 Given below is a sequence of MIPS instructions with a 5-stage pipeline without data forwarding: Loop: sll $t2, $t2, 1 addi $t2, $t2, 1 bne $t1, $t3, Loop addi $t1, $t1, 1 What are the contents of the registers $t1, $t2 and $t3 after the code sequence is executed?