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Intel processors

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Intel processors

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Intel processors

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Intel processors

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Intel x86 Architecture

add instruction Pg. 521

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3463 pages

Used

80x86 Architecture & Programming

Volume II: Architecture Reference

book at Cyrix.

lots of complexity

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Intel x86 Architecture

Intel’s 8086 architecture has, over the course of the last four decades, become the most popular instruction set in the laptop, desktop, and server markets. … Virtually all popular software has been ported to, or was developed for, the x86. The reasons for its popularity are myriad: the architecture’s serendipitous availability at the inception of the IBM PC; Intel’s laser focus on binary compatibility; their aggressive microarchitectural implementations; and their leading-edge fabrication technology.

The design quality of the instruction set architecture is not one of them.

from the Design of the RISC-V Instruction Set Architecture - Andrew Waterman 2016

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Registers (32-bit architecture)

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Registers (64-bit architecture)

http://cs.lmu.edu/~ray/notes/x86overview/

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  • Register Set
  • Instruction Set
    • Streaming SIMD Extensions (SSE)
      • SIMD = Single Instruction Multiple Data
  • Addressing Modes
  • Flags

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Instruction is anywhere from 1 to 12 bytes long

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Add

http://www.cs.virginia.edu/~evans/cs216/guides/x86.html

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Instruction Set Details

reference https://c9x.me/x86/

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  • add
  • sub
  • mov

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Modern CPU Architecture Part1

7:35 - 18:57