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x86 (also known as 80x86 [2] or the 8086 family [3]) is a family of complex instruction set computer (CISC) instruction set architectures [a] initially developed by Intel based on the 8086 microprocessor and its 8088 variant.
- X86-64
x86-64 (also known as x64, x86_64, AMD64, and Intel 64)...
- Arm
Rosetta 2 adds support for x86-64 applications but not...
- Alder Lake
Alder Lake is Intel's codename for the 12th generation of...
- 32-Bit
In computer architecture, 32-bit computing refers to...
- Complex Instruction Set Computer
A complex instruction set computer (CISC / ˈ s ɪ s k /) is a...
- Intel 8086
The 8086 (also called iAPX 86) is a 16-bit microprocessor...
- X86-64
The Itanium's performance running legacy x86 code did not meet expectations, and it failed to compete effectively with x86-64, which was AMD's 64-bit extension of the 32-bit x86 architecture (Intel uses the name Intel 64, previously EM64T). In 2017, Intel announced that the Itanium 9700 series (Kittson) would be the last Itanium chips produced.
- July 18, 1968; 55 years ago
- US$63.05 billion (2022)
- 131,900 (2022)
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Jan 1, 2024 · 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.
This book is an update to an earlier book on x86 computer architecture, hardware and software. The x86 describes not only a line of microprocessor chips dating back to 1978, but also an instruction set architecture (ISA) that the chips implement. The chip families are built by Intel and other manufacturers, and
Below is the full 8086/8088 instruction set of Intel (81 instructions total). Most if not all [which?] of these instructions are available in 32-bit mode; they just operate on 32-bit registers (eax, ebx, etc.) and values instead of their 16-bit (ax, bx, etc.) counterparts.
x86 is a term used to describe a CPU instruction set compatible with the Intel 8086 and its successors, including the Pentium and others made by Intel and other companies. This is the CPU architecture used in most desktop and laptop computers. Many 21st century workstations and servers also use x86 processors.
