64位有16个寄存器,32位只有8个。 但是32位使用e开头,而64位前8个使用了r开始。 64bit的寄存器名增加额外8个(r8 - r15),其低位分别用d,w,b指定长度。 32位使用栈帧来作为传递的参数的保存位置; 而64位使用寄存器,分别用rdi,rsi,rdx,rcx,r8,r9作为第1-6个参数。rax作为返回值 32位用ebp作为栈帧指针,...
64-bit CPUs were introduced to the (formerly 32-bit) mainstreampersonal computermarket 【in the f...
Software come64-Bitor32-Bitversions. They are similar to each other but do not work the same when installed on the wrong version of Windows. A Windows computer with more than 4 GB of RAM will normally be the 64-bit version. Right-click onStart. ...
(32位:8个通用寄存器,包括EBP和ESP)64-bit: 16 GPRs, including RBP and RSP(64位:16个通用寄存器,包括RBP和RSP) Floating point(浮点运算) 16-bit: optional separate x87 FPU(16位:可选的独立x87浮点单元)32-bit: optional separate or integrated x87 FPU, integrated SSE units in later processors(...
目前大部分64位计算机均使用这套指令集。 为什么叫x86-64,因为它是X86的一部分,兼容X86的其他指令集(32-bit,16-bit)。 详见wiki x86-64(also known asx64,x86_64andAMD64[note 1]) is the64-bitversion of thex86instruction set.It supports vastly larger amounts (theoretically, 264bytesor 16exabytes...
复杂,比如想根据平台不同可选择不同的安装文件,运行在x86平台上的Windows 32bit OS只能安装32bit文件,而运行在x64平台上的Windows 64bit OS则可以选择安装32bit或64bit(x64),但是运行在x64平台上的Windows 32bit OS又只能安装32bit了,最后,运行在IA64平台上的Windows 64bit则可以选择安装32bit和64bit(IA64)...
ARM 64 【这年头,名字里不带64的,一般就是32位,比如Intel x86】 x86 Intel家的 x86instruction set architecture (ISA) first x86 microprocessor: the Intel 8086 8086/80186/80286:16-bitinstructions 对应 "x86 legacy support" i386 : 80386 processorfamily, 【"i386" is also used by some vendors as ...
register 0 or eax, 0x000000001 ; Set PE bit (bit #0) mov cr0, eax FL...
1) 0x1(IL_ONLY) It means that assembly’s code is IL_ONLY that is it is pure IL thus it can be compiled to either 32 bit or 64 bit2) 0x2(32BIT_ONLY) means that assembly’s code must be compiled to 32 bit code and cannot be compiled to 64 bit....
Windows 8 (Core) is the basic version of the Windows 8 operating system, designed for home PC users. This version has no specific edition name; it was simply called 'Windows 8' or referred to as the 'Core' edition. Both 32-bit and 64-bit versions are available. The 32-bit version ...