首页 \ 问答 \ 为什么十六进制地址是14个字符?(why the hex address is 14 character?)

为什么十六进制地址是14个字符?(why the hex address is 14 character?)

在十六进制地址中:0x7fffd7c24334为什么位数为14? 每个十六进制地址是14个字符? 我尝试一些变量,如double和int,但它只有14个字符。 它遵守一些规则吗? 谢谢你的所有答案。


in the hex address like: 0x7fffd7c24334 why number of digits is 14? is it 14 character for every hex address? I try it for some variable like double and int but it was just 14 character. is it obey some rules? thanks for all answers.


原文:https://stackoverflow.com/questions/28854058
更新时间:2020-11-03 11:11

最满意答案

12个十六进制数字(带前导0x)表示48位。 那是256 TB的虚拟地址空间。 在AMD64上阅读wiki(我假设你在上面,对吗?)架构http://en.wikipedia.org/wiki/X86-64


12 hex digits (with leading 0x) mean 48 bits. That is 256 TB of virtual address space. Read wiki on AMD64 (I assume that you are on it, right?) architecture http://en.wikipedia.org/wiki/X86-64

2015-03-04

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