two's complement en · NOUN
Meanings
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The number obtained by complementing every bit of a given number and adding one. A number and its complement add to 2ⁿ, where n is the word size of the machine.
The two's complement of 0xAAAA is 0x5556 on a 16-bit machine, and 0xFFFF5556 on a 32-bit machine.
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The convention by which bit patterns with high bit 0 represent positive numbers from 0 to 2ⁿ⁻¹-1 directly, while bit patterns with high bit 1 represent negative numbers from −1 to -2ⁿ⁻¹, n being the word size of the machine, and the numeric complement of a number is its two's complement.
Nearly all modern computers use two's complement for integer arithmetic.
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| two's complements | Number=Plur | lexicographic |
Relateds
numeric complement · radix complement · signed magnitude · ones' complement · complement
Translations (6)
pt complemento de dois (Translations) · pl kod uzupełnień do dwóch (Translations) · is tvíundafyllitala (Translations) · hu kettes komplemens (Translations) · is tvíundafylling (Translations) · fi kahden komplementti (Translations)