[問題] 預官計概疑問 之2
請問一下
以2的補數表示整數,兩個2進位8位元整數:01010101-11011001 = ?
Ans: 01111100
直接兩數相減,好像不夠減,請問要怎麼算?
謝謝~
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推
07/05 23:44, , 1F
07/05 23:44, 1F
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07/05 23:45, , 2F
07/05 23:45, 2F
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07/05 23:45, , 3F
07/05 23:45, 3F
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07/05 23:46, , 4F
07/05 23:46, 4F
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07/05 23:46, , 5F
07/05 23:46, 5F
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07/05 23:46, , 6F
07/05 23:46, 6F
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07/05 23:47, , 7F
07/05 23:47, 7F
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07/05 23:47, , 8F
07/05 23:47, 8F
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07/05 23:48, , 9F
07/05 23:48, 9F
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07/05 23:48, , 10F
07/05 23:48, 10F
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07/05 23:49, , 11F
07/05 23:49, 11F
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07/05 23:58, , 12F
07/05 23:58, 12F
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07/06 00:00, , 13F
07/06 00:00, 13F
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07/06 00:01, , 14F
07/06 00:01, 14F
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07/06 00:02, , 15F
07/06 00:02, 15F
推
07/06 00:02, , 16F
07/06 00:02, 16F
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07/06 00:02, , 17F
07/06 00:02, 17F
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07/06 00:03, , 18F
07/06 00:03, 18F
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07/06 00:03, , 19F
07/06 00:03, 19F
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07/06 00:05, , 20F
07/06 00:05, 20F
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07/06 00:06, , 21F
07/06 00:06, 21F
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07/06 00:08, , 22F
07/06 00:08, 22F
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07/06 00:09, , 23F
07/06 00:09, 23F
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07/06 00:09, , 24F
07/06 00:09, 24F
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07/06 00:27, , 25F
07/06 00:27, 25F
推
07/06 00:43, , 26F
07/06 00:43, 26F
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07/06 00:43, , 27F
07/06 00:43, 27F
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07/06 00:45, , 28F
07/06 00:45, 28F
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07/06 00:46, , 29F
07/06 00:46, 29F
推
07/06 00:56, , 30F
07/06 00:56, 30F
推
07/06 00:58, , 31F
07/06 00:58, 31F
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07/06 00:58, , 32F
07/06 00:58, 32F
推
07/06 01:12, , 33F
07/06 01:12, 33F
推
07/06 07:44, , 34F
07/06 07:44, 34F
推
07/06 08:37, , 35F
07/06 08:37, 35F
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07/06 12:09, , 36F
07/06 12:09, 36F
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07/06 15:41, , 37F
07/06 15:41, 37F
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07/06 16:52, , 38F
07/06 16:52, 38F
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07/06 20:57, , 39F
07/06 20:57, 39F
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07/06 21:00, , 40F
07/06 21:00, 40F
推
07/07 00:56, , 41F
07/07 00:56, 41F
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07/07 00:57, , 42F
07/07 00:57, 42F
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07/07 13:55, , 43F
07/07 13:55, 43F
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07/07 20:01, , 44F
07/07 20:01, 44F
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07/07 20:02, , 45F
07/07 20:02, 45F
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07/08 07:21, , 46F
07/08 07:21, 46F