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Bit representation of negative numbers
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Gjorgi Var
Ranch Hand
Joined: Feb 24, 2004
Posts: 85
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Bit representation of 32-bit integer 1 would be:
0000 0000 0000 0000 0000 0000 0000 0001
as it is positive number...
but -1 is represented as all 1's?
1111 1111 1111 1111 1111 1111 1111 1111
How come it's all 1's? Shouldn't 1 be just the first bit?
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Michael Ernest
High Plains Drifter
Sheriff
Joined: Oct 25, 2000
Posts: 7292
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What do you think would happen if you added 1 to this number?
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Make visible what, without you, might perhaps never have been seen.
- Robert Bresson
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Rick O'Shay
Ranch Hand
Joined: Sep 19, 2004
Posts: 531
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Negatives are two's complement.
http://en.wikipedia.org/wiki/Two's_complement
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subject: Bit representation of negative numbers
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