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Emulating the DX7 the HARD way

plgDavid · explainer · Watch on YouTube

Music theory, synthesis & productionDemoscene & retrocomputingComputer architecture & CPUs

What it is

An episode of Plogue's chipresearch series on emulating the Yamaha DX7 from the hardware up. It covers the sub CPU and main CPU, address map investigation, cartridges, firmware analysis and a skeleton MAME driver.

Why Hacker News recommends it

Recommended in DX7 reverse-engineering threads as a look at the effort behind bit-accurate emulation.

  • 3 people recommended it
  • 3 different months
  • 0 strong recommendations
  • first 2021, last 2024

What HN commenters said

  1. “Here you can see part of the trouble they went through”

    Plogue's effort emulating the DX7 with logic analyzer measurements

    tgv, 2021-10 · Recommendation · in “Yamaha DX7 Technical Analysis”

  2. “The author has an interesting video here, with more to come hopefully”

    Interesting video on bit-accurate DX7 emulation

    TonyTrapp, 2022-02 · Recommendation · in “Yamaha DX7 chip reverse-engineering, part V: the output circuitry”

  3. “a YouTube video about the reverse engineering process from David at Plogue”

    Plogue developer explains reverse engineering the DX7 chips

    duniel, 2024-01 · Recommendation · in “Reverse-engineering the Yamaha DX7 synthesizer's sound chip from die photos (2021)”

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

Topics: yamaha dx7, reverse engineering, mame, firmware analysis, chipsynth

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