Emulating the DX7 the HARD way on HackerTube: recommended by 3 Hacker News commenters across 3 separate months, 2021–2024.
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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.
Recommended in DX7 reverse-engineering threads as a look at the effort behind bit-accurate emulation.
“a YouTube video about the reverse engineering process from David at Plogue”
3 Hacker News comments link this video. Each one links back to its thread.
I would recommend Plogue's OPS7, they have put considerable amounts of time and effort into reverse engineering the original chips. The interface is a little clunky but it sounds fantastic. [link] Edit: a YouTube video about the reverse engineering process from David at Plogue: ▶ this video
in “Reverse-engineering the Yamaha DX7 synthesizer's sound chip from die photos (2021)” · View on HN
Maybe the closest free plugin, but it's not on the level of accuracy as Plogue's Chipsynth OPS7, which is bit-accurate. The author has an interesting video here, with more to come hopefully: ▶ this video
in “Yamaha DX7 chip reverse-engineering, part V: the output circuitry” · View on HN
Plogue, a Canadian software company, have recently released a (software) emulation of the DX-7 in excruciating detail. Here you can see part of the trouble they went through: ▶ this video . Suffice to say that they used a logic analyzer to discover gritty details that no other analysis of the DX-7 I know has ever paid attention of.
in “Yamaha DX7 Technical Analysis” · View on HN