sequential/sixtrak.cpp: Emulated audio and promoted to working. #14531
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New functionality: * Wheel RC circuits. * Autotune circuit. * Audio. Systems promoted to working ---------------------------- Sequential Circuits Six-Trak (Model 610) Rev B/C
rb6502
reviewed
Nov 17, 2025
| // The autotune implementation on the Six-Trak depends on behavior of the | ||
| // 8253 that does not seem to be accurately emulated in pit8253.cpp. | ||
| // Specifically, the Six-Trak expects that: | ||
| // - The counter is incremented on the negative-going edge of the clock. |
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These bugs should be fixed in pit8253.cpp so that it has verified behavior in the future. However, there is a pretty high risk that one or both of those details are relied on by some of the many other users of that device. So doing that in a separate pull request that we can get some testing on would be great.
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Acknowledged. And yeah, I didn't want to touch pit8253.cpp due to its extended usage, and since it is possible I am misunderstanding something. I can send a PR after I wrap up some other changes, and we can discuss there.
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New functionality:
Systems promoted to working
Sequential Circuits Six-Trak (Model 610) Rev B/C