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X86

x86 (also known as 80x86 or the 8086 family) is a family of complex instruction set computer (CISC) instruction set architectures initially developed by Intel, based on the 8086 microprocessor and its 8-bit-external-bus variant, the 8088. The 8086 was introduced in 1978 as a fully 16-bit extension of Intel's 8-bit 8080 microprocessor, with memory…

History, Current implementations & X86 registers

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Bits
16-bit, 32-bit and 64-bit
Branching
Condition code
Design
CISC
Designer
Intel, AMD
Encoding
Variable (1 to 15 bytes)
Endianness
Little

Topics to explore

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Overview

History

Basic properties of the architecture

Current implementations

Addressing modes

X86 registers

Operating modes

Extensions

Advanced semantic analysis

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Map overview Semantic statistics

X86

Nodes295
Edges294
Triples298
Avg. degree1.99
Density0.00678
Components1

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X86

Top relations

related to Designers and manufacturers · 25
X86 → AMD, At, CPUs, Cyrix, DM, For, Fujitsu, IBM, Intel's, Intersil, ITT Corporation, National Semiconductor, NEC, NexGen, OKI, Other, Quite, Siemens, STM, Such
related to 64-bit · 22
X86 → Also, AMD Opteron, An R-prefix, However, In, R15, R8, RAX, RBP, RBX, RCX, RDI, RDX, RFLAGS, RIP, RSI, RSP, SSE, Starting, The
related to AMD-V and VT-x · 20
X86 → AMD-V, Gerald, Goldberg, However, Hyper-V, Intel VT-x, Kernel-based Virtual Machine, Parallels Workstation, Popek, Prior, Proprietary, QEMU, Robert, The, VirtualBox, VMware ESX, VMware Workstation, VMware Workstation Player, Windows Virtual PC, Xen
related to From 16-bit and 32-bit to 64-bit architecture · 16
X86 → AMD, AMD's, AMD64, BSDs, EM64T, IA-32, IA-32e, IA-64, In, Intel, Linux, Microsoft, Microsoft Windows, Sun Microsystems/Oracle, The, Windows
related to Real mode · 16
X86 → All, BIOS, CPU, CPUs, However, IBM BIOS, IBM PC, In, Intel, It, KB, MiB, On, Real, Real Address, This
related to Current implementations · 15
X86 → AMD CPUs, During, However, Intel Core, Nehalem, Not, Pentium, RISC, Some Intel CPUs, These, TSX, When, Xeon Foster MP, Xeon Phi, Zen
related to Floating point and SIMD · 15
X86 → Advanced Vector Extensions, AVX, AVX-512, Core Instructions, In, Intel's Sandy Bridge, Knights Corner Xeon Phi, Knights Landing Xeon Phi, SIMD, SIMD-unit, Skylake-X, SSE, The, The Intel Initial Many, This
related to x86 Ecosystem Advisory Group · 15
X86 → ACE, Advanced Matrix Extensions, AMD, AVX10, ChkTag, Ecosystem Advisory Group, Event Delivery, Flexible Return, FRED, Goals, In October, Intel, Key, Matrix Multiplication, Memory Tagging
related to 32-bit · 13
X86 → AX, EAX, ESI, FLAGS, FS, GS, SI, Special, The, Thus, To, Two, With
related to Basic properties of the architecture · 12
X86 → Among, Byte-addressing, CISC, However, Immediate, Memory, Much, Multiple, SIMD, The, To, Typical

Important terminology Word statistics

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Important terminology

intel registers 64-bit processors 32-bit instruction mode also memory used register amd instructions architecture set 16-bit 8086 stack processor systems

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
X86Bits16-bit, 32-bit and 64-bit1.00infobox
X86BranchingCondition code1.00infobox
X86DesignCISC1.00infobox
X86DesignerIntel, AMD1.00infobox
X86EncodingVariable (1 to 15 bytes)1.00infobox
X86EndiannessLittle1.00infobox
X86Extensionsx87, IA-32, x86-64, MMX, 3DNow!, SSE, MCA, ACPI, SSE2, NX bit, SMT, SSE3, SSSE3, SSE4.1, SSE4.2, AES-NI, CLMUL, SM3, SM4, RDRAND, SHA, MPX, SME, SGX, XOP, F16C, ADX, BMI, FMA, A…1.00infobox
X86Floating-point16-bit: optional separate x87 FPU1.00infobox
X86Floating-point32-bit: optional separate or integrated x87 FPU, integrated SSE units in later processors1.00infobox
X86Floating-point64-bit: integrated x87 and SSE2 units, later implementations extended to AVX2 and AVX5121.00infobox
X86General-purpose16-bit: 8 GPRs, including BP and SP1.00infobox
X86General-purpose32-bit: 8 GPRs, including EBP and ESP1.00infobox
X86General-purpose64-bit: 16 GPRs, including RBP and RSP1.00infobox
X86General-purpose32 GPRs, If CPU supports APX1.00infobox
X86Introduced1978 (16-bit), 1985 (32-bit), 2003 (64-bit)1.00infobox
X86OpenMixed1.00infobox
X86Page size8086–i286: None i386, i486: 4 KB pages P5 Pentium: added 4 MB pages (Legacy PAE: 4 KB→2 MB) x86-64: added 1 GB pages1.00infobox
X86TypeRegister–memory1.00infobox

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