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8-bit CPU control logic: Part 1

Ben Eater · tutorial · Watch on YouTube

Computer architecture & CPUsElectronics & circuit design

What it is

Ben Eater writes a program in a made-up machine language and walks through the control logic an 8-bit breadboard CPU needs to execute it. It is part of his build-an-8-bit-computer series.

Why Hacker News recommends it

Recommended as the key video for understanding control logic and microcode.

  • 3 people recommended it
  • 3 different months
  • 1 strong recommendations
  • first 2017, last 2023

What HN commenters said

  1. “If you only have a limited amount of time I would highly recommend the control logic video”

    Control logic video is the one to watch if short on time

    bogomipz, 2017-06 · Strong recommendation · in “Build an 8-Bit Computer from Scratch”

  2. “I found these Ben Eater YouTube videos very useful to understanding what microcode is and how it works”

    Clarifies what microcode is and how it works

    dkersten, 2023-03 · Recommendation · in “AMD ymm registers are rolling back”

  3. “Its pretty amazing to see it all come together and work in the end.”

    Start of series where control logic is microcoded on breadboards

    pests, 2023-07 · Recommendation · in “Undocumented 8086 instructions, explained by the microcode”

Excerpts from Hacker News comments, linked to the originals. Summaries and labels were written by a language model from those comments.

Topics: ben eater, microcode, 8-bit computer, breadboard, machine language

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