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The 8086 [3] (also called iAPX 86) [4] is a 16-bit microprocessor chip designed by Intel between early 1976 and June 8, 1978, when it was released. The Intel 8088, released July 1, 1979, [5] is a slightly modified chip with an external 8-bit data bus (allowing the use of cheaper and fewer supporting ICs), [note 1] and is notable as the processor used in the original IBM PC design.
Microsoft Windows, for example, designates its 32-bit versions as "x86" and 64-bit versions as "x64", while installation files of 64-bit Windows versions are required to be placed into a directory called "AMD64". [20] In 2023, Intel proposed a major change to the architecture referred to as X86S (formerly known as X86-S). The S in X86S stood ...
Below is the full 8086/8088 instruction set of Intel (81 instructions total). [2] These instructions are also available in 32-bit mode, in which they operate on 32-bit registers (eax, ebx, etc.) and values instead of their 16-bit (ax, bx, etc.) counterparts.
The Embeddable Linux Kernel Subset (ELKS), formerly known as Linux-8086, is a Linux-like operating system kernel. It is a subset of the Linux kernel , intended for 16-bit computers with limited processor and memory resources such as machines powered by Intel 8086 and compatible microprocessors not supported by 32-bit Linux .
The K1810VM86 (Russian: К1810ВМ86) [1] [2] is a Soviet 16-bit microprocessor, a clone of the Intel 8086 CPU with which it is binary and pin compatible. It was developed between 1982 and 1985. [3]
Instead, the 16-bit segment registers now contain an index into a table of segment descriptors containing 24-bit base addresses to which the offset is added. To support old software, the processor starts up in "real mode", a mode in which it uses the segmented addressing model of the 8086.
Vadem - VG230 and VG330 (SoCs with NEC V30 CPU cores, manufacturing continued by Amphus) [13] SiS (sold its Vortex86 line to DM&P) Intersil (x86 line, that is up to 80286 compatible, discontinued) VAutomation [14] - offered synthesizable x86 cores, in particular the Turbo 186, that has been implemented in ASICs from numerous vendors, e.g. [15]
x86 PC Intel 8086/80186/80286 (real-mode only), 386/486 with 3rd party plugins Windows, Windows CE/Pocket PC: Commercial Q: 0.9.1d118 February 16, 2010: x86 PC, various platforms OS X: GPL: QEMU: 9.2.0 December 10, 2024: x86 PC, various platforms Cross-platform: GPL: SimNow: 4.6.2 April 6, 2010: AMD K8 (Athlon 64 and Opteron) PC Windows 64-bit ...