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# two's complement

a) The number obtained by complementing every bit of a given number and adding one. A number and its complement add to 2, where n is the word size of the machine.

The twos complement of 0xAAAA is 0x5556 on a 16-bit machine, and 0xFFFF5556 on a 32-bit machine.

b) The convention by which bit patterns with high bit 0 represent positive numbers from 0 to directly, while bit patterns with high bit 1 represent negative numbers from -1 to , n being the word size of the machine, and the numeric complement of a number is its twos complement.

Nearly all modern computers use twos complement for integer arithmetic.

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• Two's Complement —   [dt. »Zweierkomplement«], Komplement …   Universal-Lexikon

• Two's complement — The two s complement of a binary number is defined as the value obtained by subtracting the number from a large power of two (specifically, from 2 N for an N bit two s complement).A two s complement system or two s complement arithmetic is a… …   Wikipedia

• two's complement — papildomasis dvejetainis kodas statusas T sritis automatika atitikmenys: angl. complement on two; two s complement; twos complement vok. Zweierkomplement, n rus. дополнительный код двоичного числа, m pranc. complément â deux, m …   Automatikos terminų žodynas

• Two's Complement — Das Zweierkomplement (auch 2 Komplement, Zweikomplement, B(inär) Komplement, Basiskomplement, two s complement) ist eine arithmetische Operation auf Dualzahlen. Dabei werden zunächst alle Ziffern bzw. Bits negiert, das heißt aus 0 wird 1 und… …   Deutsch Wikipedia

• two's complement — noun Date: 1958 the negative of a binary number represented by switching all ones to zeros and all zeros to ones and then adding one to the result …   New Collegiate Dictionary

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• complement on two — papildomasis dvejetainis kodas statusas T sritis automatika atitikmenys: angl. complement on two; two s complement; twos complement vok. Zweierkomplement, n rus. дополнительный код двоичного числа, m pranc. complément â deux, m …   Automatikos terminų žodynas

• complément â deux — papildomasis dvejetainis kodas statusas T sritis automatika atitikmenys: angl. complement on two; two s complement; twos complement vok. Zweierkomplement, n rus. дополнительный код двоичного числа, m pranc. complément â deux, m …   Automatikos terminų žodynas