About: Intel Microcode

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Intel microcode is microcode that runs inside x86 processors made by Intel. Since the P6 microarchitecture introduced in the mid-1990s, the microcode programs can be patched by the operating system or BIOS firmware to work around bugs found in the CPU after release. Intel had originally designed microcode updates for processor debugging under its design for testing (DFT) initiative. Following the Pentium FDIV bug, the patchable microcode function took on a wider purpose to allow in-field updating without needing to do a product recall.

Attributes	Values
rdfs:label	Intel Microcode (en)
rdfs:comment	Intel microcode is microcode that runs inside x86 processors made by Intel. Since the P6 microarchitecture introduced in the mid-1990s, the microcode programs can be patched by the operating system or BIOS firmware to work around bugs found in the CPU after release. Intel had originally designed microcode updates for processor debugging under its design for testing (DFT) initiative. Following the Pentium FDIV bug, the patchable microcode function took on a wider purpose to allow in-field updating without needing to do a product recall. (en)
dcterms:subject	Intel x86 microprocessors Intel microarchitectures
Wikipage page ID	56384922 (xsd:integer)
Wikipage revision ID	1118157390 (xsd:integer)
Link from a Wikipage to another Wikipage	Protection ring Sandy Bridge NOP (code) Read-only memory Binary blob Decryption Pentium FDIV bug Register renaming Design for testing Instruction cycle Intel 8086 Intel Atom Macro-Ops Fusion Out-of-order execution Branch (computer science) NEC Machine Check Architecture Static random-access memory Stepping level Clean room design Padding (cryptography) Patch (computing) Programmable logic array Micro-operation Microcode DOS Am486 Breakpoint P6 (microarchitecture) Goldmont Product recall Hyper-threading Intel x86 microprocessors JTAG BIOS BIOS interrupt call Intel microarchitectures Built-in self-test CPUID Intel Intel 386 Intel 486 Intel 80486 Intel Core (microarchitecture) Nehalem (microarchitecture) RSA (cryptosystem) Reduced instruction set computer X86 X86 instruction listings XNU YouTube MMX (instruction set) Model-specific register In-circuit emulation Simultaneous multithreading Second source Nonvolatile BIOS memory Symmetric multiprocessing Register file Parity error Patchable microcode
Link from a Wikipage to an external page	https://github.com/chip-red-pill/uCodeDisasm https://www.youtube.com/watch%3Fv=4oFOpDflJMA%7Clocation=Netherlands%7Ctitle=Under https://opensource.apple.com/source/xnu/xnu-3789.41.3/osfmk/i386/ucode.c.auto.html%7Curl-status=live%7Ctitle=Microcode
sameAs	Intel Microcode Intel Microcode
dbp:wikiPageUsesTemplate	dbt:Abbr dbt:Cite_book dbt:Cite_web dbt:Em dbt:Ordered_list dbt:Refbegin dbt:Refend dbt:Reflist dbt:Rp dbt:Cite_patent
has abstract	Intel microcode is microcode that runs inside x86 processors made by Intel. Since the P6 microarchitecture introduced in the mid-1990s, the microcode programs can be patched by the operating system or BIOS firmware to work around bugs found in the CPU after release. Intel had originally designed microcode updates for processor debugging under its design for testing (DFT) initiative. Following the Pentium FDIV bug, the patchable microcode function took on a wider purpose to allow in-field updating without needing to do a product recall. In the P6 and later microarchitectures, x86 instructions are internally converted into simpler RISC-style micro-operations that are specific to a particular processor and stepping level. (en)
prov:wasDerivedFrom	wikipedia-en:Intel_Microcode?oldid=1118157390&ns=0
page length (characters) of wiki page	45899 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Intel_Microcode
is Link from a Wikipage to another Wikipage of	Internet leak Meltdown (security vulnerability) Microcode Spectre (security vulnerability) X86 instruction listings
is foaf:primaryTopic of	wikipedia-en:Intel_Microcode

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