X32 = 32 bit =32位 X64 = 64 bit =64位 X86 = 兼容 32、64位
如果你的电脑内存大于4G,那就要用64位的系统了,因为32位的Windows 7也好,Vista也好,最大都只支持3.25G的内存。而64位的windows 7最大将支持128G的内存。以下是引用网络上一段文字:64bit计算主要有两大优点:可以进行更大范围的整数运算;可以支持更大的内存。不能因为数字上的变化,而简单的认为64bit处理器...
x86是Intel首先开发制造的一种CPU架构的泛称。这系列芯片以前都用数字来表示,然后以“86”结尾,比如Intel 8086。对应32位的操作系统。后来因为数字并不能作为注册商标,所以Intel后来就把新产品改名成现在这样了,比如CORE。现在Intel把x86-32称为IA-32(Intel Architecture, 32-bit)。 01分享举报...
; 简单介绍IntelIA32PC架构Intel使用IA32来代表Pentium处理器族,以区别64bit的架构。 1.模式IA32处理器有三种操作模式 实模式:当...) Carry Flag (CF) 0 (status) EIP寄存器(指令指针): 3.寻址 1)Bit和Byte顺序:IA32处理器使用“小端”作为其字节顺序, 2)数据类型 Pentium 4...
Linux下查看操作系统位数:getconf LONG_BIT 返回值 64 Linux下查看CPU硬件架构:arch 在Linux中使用命令arch可以初步查看出当前系统所识别出来的机器CPU类型,如"i386", "i486","i586", "alpha", "sparc", "arm", "m68k","mips","ppc","ia64","x86_64"等;ia64和x86_64就说明这台机器是64位的; ...
A direct upgrade from 32-bit (x86-based) Windows 7 to 64-bit (x64-based) Windows 7 OS is not a supported upgrade path. When you try to run the 64bit setup.exe Windows 7 installer from within a 32bit operating system, the following error message will occur: If you attempt ...
Linux下查看操作系统位数:getconf LONG_BIT 返回值 64 Linux下查看CPU硬件架构:arch 在Linux中使用命令arch可以初步查看出当前系统所识别出来的机器CPU类型,如"i386", "i486","i586", "alpha", "sparc", "arm", "m68k","mips","ppc","ia64","x86_64"等;ia64和x86_64就说明这台机器是64位的; ...
寻找64位系统某符号特征码时发现他的MOV指令用的是相对地址,之前32位下从来没听说MOV还能用相对地址,故查阅了下Intel指令手册。 在MOV指令介绍下找到如下介绍: In 64-bit mode, the instruction’s default operation size is 32 bits. Use of the REX.R prefix permits access to additional ...
adowdychanged the titlesupport remote debug from x86_64 based PC gdb client with gdbgui, to ARM arch gdbserver (multiarch)SOLUTION FOUND - support remote debug from x86_64 based PC gdb client with gdbgui, to ARM arch gdbserver (multiarch)Oct 12, 2018 ...
在64位下仍使⽤32位操作数,REX.R扩展寄存器,REX.W扩展指令。REX前缀结构:关于RIP的介绍:2.2.1.6 RIP-Relative Addressing A new addressing form, RIP-relative (relative instruction-pointer) addressing, is implemented in 64-bit mode. An effective address is formed by adding displacement to the ...