ones' complement

名词 n.
中文释义

英文释义

名词 n.
  1. The number obtained by subtracting a given n-digit binary number from 2ⁿ-1 (which yields the same result as the logical complement).
    — The ones' complement of 0xAAAA is 0x5555 on a 16-bit machine, and 0xFFFF5555 on a 32-bit machine.
  2. 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 0 to -(2ⁿ⁻¹-1), n being the word size of the machine, and the numeric complement of a number is its ones' complement.
    — Computers that use ones' complement arithmetic have two representations for zero, all 0's and all 1's.

词形变化

ones' complements plural
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