Quiz submission record for quiz3-1-2 at Tue Jul 6 10:43:25 2004: Your Answer for Question 1: I think the answer is no. because according to the instruction format table, each instruction has its own bit pattern, if two different instructions had the same bit pattern, the assembler would not have known their difference. Your Answer for Question 2: in the instruction, There: add $t1, $t2, $t3, the value of $t1 is changed after calling it. But in the instruction, Here: beq $t1, $t2, There, we have to use $t1. so the assembler has a problem with that. Your unique submission ID is quiz3-1-2-cs61c-cq-1089135805-1668.