- #1
jofree87
- 38
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Im having some trouble with these conversions, specifically numbers out of the -127 to 128 range, and numbers with bases that are not 10. My book is asking for the 2's complement of -19210 and -458 in 8 bits. Here is my work.
-19210
19210 = 110000002
(Do I add on another 0 on the left most end here?)
flipping the bits, I get 001111112
adding 1 gives 010000002
the book's answer is 000000102
how are they getting this?
________________________________
-458
For this I tried using the shortcut method and got 458 = 001001012
flipping the bits and adding 1, I get 110110112
the book's answer is 101110112
any help?
sorry about posting 2 questions in one thread, I just didn't want to clutter the forum with problems that were so similar.
-19210
19210 = 110000002
(Do I add on another 0 on the left most end here?)
flipping the bits, I get 001111112
adding 1 gives 010000002
the book's answer is 000000102
how are they getting this?
________________________________
-458
For this I tried using the shortcut method and got 458 = 001001012
flipping the bits and adding 1, I get 110110112
the book's answer is 101110112
any help?
sorry about posting 2 questions in one thread, I just didn't want to clutter the forum with problems that were so similar.