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Quiz 5 - 1 When we build a 32-bit ripple carry...

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1. When we build a 32-bit ripple carry adder/subtractor,  why do we connect the add/sub control signal to the carry in signal of bit 0, i.e., c0?
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A. Si gn al  c0  is  ac tu all un ne ce ss ar y.  So  it  do es  no m att er  if it  is  co nn ec te to  th ad d/ su co ntr ol  sig na l.
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Points Earned: 1/1 Correct Answer: B Your Response: B 2. If registers $t1 and $t2 contain the values 0xA0B00000 and 0xBF20FFFF, which MIPS instruction below  will incur overflow?
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A. ad $s 0,  $t 1,  $t 2 B. su $s 0,  $t 1,  $t 2 C. ad du  $s 0,  $t 1,  $t 2 D. su bu  $s 0,  $t 1,  $t 2
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Points Earned: 1/1 Correct Answer: A Your Response: A 3. As shown in slide 35 of our cse331.week07&8 slides, we tie the most significant sum bit to the lowest 'less'  line to support instruction 'slt'.  After we execute the instruction 'slti $s0, $t1, 5' (assume the value in register $t1 is 3), what is the 32-bit  result (result31, result30, ..., result0) output by the 32 multiplexors?
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A.
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