SSE2 is an extension of the IA-32 architecture, based on the x86 instruction set. Therefore, only x86 processors can include SSE2. The AMD64 architecture supports the IA-32 as a compatibility mode and includes the SSE2 in its specification. It also doubles the number of XMM registers, allowing for better performance.
Architectural features. The primary defining characteristic of IA-32 is the availability of 32-bit general-purpose processor registers (for example, EAX and EBX), 32-bit integer arithmetic and logical operations, 32-bit offsets within a segment in protected mode, and the translation of segmented addresses to 32-bit linear addresses.
Akan tetapi, sehari setelah RTM, salinan versi akhir Windows 8 Enterprise N (untuk pasar Eropa) bocor di Internet, dan beberapa hari kemudian baik versi IA-32 dan x64 Pro dan Enterprise sama-sama bocor. Tanggal 15 Agustus 2012, Windows 8 dapat diunduh untuk pelanggan MSDN dan TechNet.
For IA-32 and Intel 64 processors, consult the Intel 64 and IA-32 Architectures Software Developer's Manual Chapter 15 (Machine-Check Architecture), or the Microsoft KB Article on Windows Exceptions. Programs to decode Intel and AMD MCEs. mcat: A Windows command-line program from AMD to decode MCEs from AMD K8, Family 0x10 and 0x11 processors.
The IA-32 instruction set of the Pentium processor contains 18 sensitive, unprivileged instructions. They can be categorized in two groups: Sensitive register instructions: read or change sensitive registers or memory locations such as a clock register or interrupt registers: SGDT, SIDT, SLDT; SMSW; PUSHF, POPF
The native architecture of x86-64 processors: residing in the 64-bit Mode, lacks of access mode in segmentation, presenting 64-bit architectural-permit linear address space; an adapted IA-32 architecture residing in the Compatibility Mode alongside 64-bit Mode is provided to support most x86 applications 2003: Athlon 64/FX/X2 (2005), Opteron
IA-64 (Intel Itanium architecture) is the instruction set architecture (ISA) of the Itanium family of 64-bit Intel microprocessors.The basic ISA specification originated at Hewlett-Packard (HP), and was subsequently implemented by Intel in collaboration with HP.