Silicon Pr0n

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List of public information on Intel x86 microcode and related info


====== Intel 8086 ======

https://www.reenigne.org/blog/8086-microcode-disassembled/

====== Intel 8087 ======

http://www.righto.com/2020/05/extracting-rom-constants-from-8087-math.html

"Extracting ROM constants from the 8087 math coprocessor's die"


====== Intel 80486dx ======

Think this site (siliconpr0n.org) might have some images of the bits, but might need a better pass if someone was really serious about it


====== Intel Appendix H ======

https://en.wikipedia.org/wiki/Appendix_H

http://computer-programming-forum.com/46-asm/e2e5b0bdcf448270.htm

This was leaked a while back (by accident?) from a research group. Someone also wrote an OpenOCD module to feed instructions in as microcode

Relevant documents?
  * "P5 EXTERNAL DESIGN SPECIFICATION, External Architecture Specification, Revision 1.3 January 15, 1992"


====== Intel Pentium 2 Klamath ======

https://twitter.com/peterbjornx
  * Few sample links. Hopefully there will be a public project page at some point
  * https://twitter.com/peterbjornx/status/1236790522955653120
  * https://twitter.com/peterbjornx/status/1248011107857399808
  * https://twitter.com/peterbjornx/status/1245702851134918657
  * https://github.com/peterbjornx/pladecode


====== Intel microcode updates ======


http://inertiawar.com/microcode/
  * Misc dicussion

https://github.com/platomav/MCExtractor
  * Tool to extract misc info

https://github.com/platomav/CPUMicrocodes
  * repo of misc updates

IIRC there was also a conference talk I saw
  * Maybe: https://www.youtube.com/watch?v=lY5kucyhKFc


====== Intel Atom Goldmont ======

https://github.com/chip-red-pill/glm-ucode

"Five Intel Microcode (uCode) Sequencer's arrays for Atom Goldmont core named according to our guesses"


====== AMD ======

https://www.youtube.com/watch?v=W3FbTMqYi4U