如何重新$ P $负数的32位有符号整数psented？ [英] How are negative numbers represented in 32-bit signed integer?

问题描述

如何负数再$ P $ 32位有符号整数psented？
它是二的或者一个补？或左侧的最后一个比特是像一个标志？
例如：（-10）

How are negative number represented in 32-bit signed integer? Is it two's or one's complement? or the last bit on the left is like a flag? For example: (-10)

推荐答案

大多数计算机，这些天使用补对于有符号整数，但它可以通过硬件结构，程序设计语言，或者其他特定于平台的问题而变化。

Most computers these days use two's complement for signed integers, but it can vary by hardware architecture, programming language, or other platform-specific issues.

有关一个二进制补码重新presentation，最左边的比特被称为符号位的，它会被用于负整数设置和清除为一个非负整数。然而，它不仅仅是一个标记的更多。请参阅维基百科的文章更多信息。

For a two's-complement representation, the leftmost bit is referred to as the sign bit, and it will be set for a negative integer and clear for a non-negative integer. However, it is more than just a "flag". See the Wikipedia article for more information.

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