x86-64 - Wikipedia
WEBx86-64 (also known as x64, x86_64, AMD64, and Intel 64) [note 1] is a 64-bit version of the x86 instruction set, first announced in 1999. It introduced two new modes of operation, 64-bit mode and compatibility mode, along with a new 4-level paging mode.
x86 instruction listings - Wikipedia
WEBAdded with x86-64. These instructions can only be encoded in 64 bit mode. They fall in four groups: original instructions that reuse existing opcodes for a different purpose (MOVSXD replacing ARPL) original instructions with new opcodes (SWAPGS) existing instructions extended to a 64 bit address size (JRCXZ)
x86 - Wikipedia
WEBx86-64 is the 64-bit extended architecture of x86, its Legacy Mode preserves the entire and unaltered x86 architecture.
What is x86-64? | Definition from TechTarget
WEBx86-64 (also called x86_64, x64, or amd64) is the 64-bit CPU architecture that is used in Intel and AMD processors. It is an extension to the 32-bit x86 (i386) architecture. The x86-64 architecture is used in most CPUs for home computers and servers in use today. It is incompatible with the ARM64 architecture, which is in use in smartphones ...
x86 Assembly/X86 Architecture - Wikibooks
WEBJan 1, 2024 · 3.1 Real Mode. 3.2 Protected Mode. 3.2.1 Flat Memory Model. 3.2.2 Multi-Segmented Memory Model. 3.3 Long Mode. x86 Architecture. The x86 architecture has 8 General-Purpose Registers (GPR), 6 Segment Registers, 1 Flags Register and an Instruction Pointer. 64-bit x86 has additional registers. Wikipedia has related information at Processor register.
x86 calling conventions - Wikipedia
WEBx86-64 calling conventions. x86-64 calling conventions take advantage of the added register space to pass more arguments in registers. Also, the number of incompatible calling conventions has been reduced. There are two in common use. Microsoft x64 calling convention. The Microsoft x64 calling convention is …
64-bit computing - Wikipedia
WEBThe 64-bit extension created by Advanced Micro Devices (AMD) to Intel's x86 architecture (later licensed by Intel); commonly termed x86-64, AMD64, or x64: AMD's AMD64 extensions (used in Athlon 64 , Opteron , Sempron , Turion 64 , Phenom , Athlon II , Phenom II , APU , FX , Ryzen , and Epyc processors)
x86 assembly language - Wikipedia
WEBx86 assembly language is the name for the family of assembly languages which provide some level of backward compatibility with CPUs back to the Intel 8008 microprocessor, which was launched in April 1972. [1] [2] It is used …
x86 - Simple English Wikipedia, the free encyclopedia
WEBIntel adopted the 64-bit computing bit architecture in 2004 with the later versions of the Prescott Pentium 4. The different versions are backward-compatible, meaning that a 32-bit x86 CPU can run a 32-bit or 16-bit operating system, and a 64-bit x86 CPU can run a 16, 32, or 64-bit operating system.
X64 - Simple English Wikipedia, the free encyclopedia
WEBx86-64 is the general name of a series of 64-bit processors and their associated instruction set architecture. These processors are compatible with legacy x86 software. AMD and Intel are the major manufacturers, and VIA also supported it with VIA Nano processors.
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