九色国产,午夜在线视频,新黄色网址,九九色综合,天天做夜夜做久久做狠狠,天天躁夜夜躁狠狠躁2021a,久久不卡一区二区三区

打開APP
userphoto
未登錄

開通VIP,暢享免費電子書等14項超值服

開通VIP
X86、X64和X86_64區(qū)別

IA32、x86

IA-32為Intel Architecture 32bit簡稱,即英特爾32位體系架構(gòu),在英特爾公司1985年推出的80386微處理器中首先采用。通常也被稱為i386、x86-32、x86等。

IA64

IA64是后來intel和惠普聯(lián)合推出的64位體系架構(gòu),但是不兼容原有的32位體系結(jié)構(gòu)的應用程序,導致市場慘淡。

AMD64、x86-64、x64

后來AMD推出了兼容32位的64位集關(guān)于IA-32的擴展,之后改名為AMD64,Intel后來也采用該架構(gòu),稱為x86-64或者x64。

x86是指intel的開發(fā)的一種32位指令集,從386開始時代開始的,一直沿用至今,是一種cisc指令集,所有intel早期的cpu,amd早期的cpu都支持這種指令集,ntel官方文檔里面稱為“IA-32”

x84_64是x86 CPU開始邁向64位的時候,有2選擇:1、向下兼容x86。2、完全重新設(shè)計指令集,不兼容x86。AMD搶跑了,比Intel率先制造出了商用的兼容 x86的CPU,AMD稱之為AMD64,搶了64位PC的第一桶金,得到了用戶的認同。而Intel選擇了設(shè)計一種不兼容x86的全新64為指令集,稱 之為IA-64(這玩意似乎就是安騰),但是比amd晚了一步,而且IA-64也挺慘淡的,因為是全新設(shè)計的CPU,沒有編譯器,也不支持 windows(微軟把intel給忽悠了,承諾了會出安騰版windows server版,但是遲遲拿不出東西)。。。后來不得不在時機落后的情況下也開始支持AMD64的指令集,但是換了個名字,叫x86_64,表示是x86 指令集的64擴展,大概是不愿意承認這玩意是AMD設(shè)計出來的。

也就是說實際上,x86_64,x64,AMD64基本上是同一個東西,我們現(xiàn)在用的intel/amd的桌面級CPU基本上都是x86_64,與之相對的arm,ppc等都不是x86_64。

 ———————————————— 

x86:Intel從16位微處理器8086開始的整個CPU芯片系列,系列中的每種型號都保持與以前的各種型號兼容,主要有8086,8088(前面兩個是16位CPU),80186,80286(這兩個是過渡產(chǎn)品), 80386,80486以及以后各種型號的Pentium芯片[奔騰,P2, P4,賽揚...](這些都是32位CPU)

x86-64:如下是維基百科上的解釋,大致翻譯一下,x86-64是x86指令集的超集,在x86處理器上可以運行的程序可以運行在x86-64上(這也是為啥現(xiàn)在買的一些64bits CPU可以直接運行Win XP的原因)。x86-64是AMD發(fā)明的,也叫AMD64,Intel克隆了一把,叫做Intel 64,也叫EM64T。

x86-64 is a 64-bit superset of the x86 instruction set architecture. Because the x86-64 instruction set is a superset of the x86 instruction set, all instructions in the x86 instruction set can be executed by central processing units (CPUs) that implement the x86-64 instruction set; therefore these CPUs can natively run programs that run on x86 processors from Intel, Advanced Micro Devices (AMD), and other vendors.

x86-64 was designed by AMD, who have since renamed it AMD64. It has been cloned by Intel under the name Intel 64 (formerly known as EM64T among other names).[1] This leads to the common use of the names x86-64 or x64 as more vendor-neutral terms to collectively refer to the two nearly identical implementations.
x86和x86-64可以認為就是一種特定的指令集


i386:也是維基上的解釋,也就是指Intel 80386,是第一個32位的x86架構(gòu)的處理器,用了20多年了,后面出的 486(80486,i486),586(80586,Pentium,P5),686(80686,Pentium Pro,P6)等等都與之兼容。

The Intel 80386, otherwise known as the Intel386, i386 or just 386, is a microprocessor which has been used as the central processing unit (CPU) of many personal computers and workstations since 1986. It was the first x86 processor to have a 32-bit architecture, with a basic programming model that has remained virtually unchanged for over twenty years and remains completely backward compatible.

IA32:可以認為就是x86或者x86-32,也是一個指令集。

IA-32 (Intel Architecture, 32-bit), often generically called x86 or x86-32, is the instruction set architecture of Intel's most commercially successful microprocessors. It is a 32-bit extension, first implemented in the Intel 80386, of the earlier 16-bit Intel 8086, 80186 and 80286 processors and the common denominator for all subsequent x86 designs. This architecture defines the instruction set for the family of microprocessors installed in the vast majority of personal computers in the world.

IA64:就是所謂的安騰,Intel跟HP聯(lián)合折騰的一種64-bits全新架構(gòu),與x86系列不兼容,它放棄了以前的x86架構(gòu),認為它嚴重阻礙了處理器的性能提高。由于它不能很好地解決與以前32位應用程序的兼容,所以應用受到較大的限制,盡管目前Intel采取了各種軟、硬方法來彌補這一不足,但隨著AMD Operon處理器的全面投入,Intel的IA-64架構(gòu)的這兩款處理器前景不容樂觀。
Itanium is the brand name for 64-bit Intel microprocessors that implement the Intel Itanium architecture (formerly called IA-64). Intel has released two processor families using the brand: the original Itanium and the Itanium 2. Starting November 1, 2007, new members of the second family are again called Itanium. The processors are marketed for use in enterprise servers and high-performance computing systems. The architecture originated at Hewlett-Packard (HP) and was later developed by HP and Intel together.

本站僅提供存儲服務,所有內(nèi)容均由用戶發(fā)布,如發(fā)現(xiàn)有害或侵權(quán)內(nèi)容,請點擊舉報。
打開APP,閱讀全文并永久保存 查看更多類似文章
猜你喜歡
類似文章
為什么64位X86有X86-64和AMD64兩種名字?
了解cpu架構(gòu)
64bit CPU 知識 (IA32,IA64,EM64T,AMD64)
CPU架構(gòu)及指令集之研究
這18條背下來沒人敢和你忽悠CPU
關(guān)于x86、i386、i486、i586和i686等名詞的解釋 - 華石的日志 - 網(wǎng)易博客
更多類似文章 >>
生活服務
熱點新聞
分享 收藏 導長圖 關(guān)注 下載文章
綁定賬號成功
后續(xù)可登錄賬號暢享VIP特權(quán)!
如果VIP功能使用有故障,
可點擊這里聯(lián)系客服!

聯(lián)系客服