→ Reddick5566:A作完答案是-32 2's complement中 可表示到-(2^n-1) 01/31 22:12
→ Reddick5566:A沒溢位 01/31 22:13
The following binary have a sign in the leftmost bit and negative, are in 2's
complement form. Which one in the following computation has overflow occured?
(A) 100111+111001
(B) 001011+100110
(C) 110001-010010
(D) 101110+001011
我算的答案是A會產生溢位
但是答案是(C)
我看了一下(C)的解是這樣的:
110001+101110 = [1]011111 →做捨棄→做2的補數→十進位轉換 = -33
(-15) (-18)
我是買坊間的書
不知道有沒有錯
還是我自己搞錯?
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