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It would be cool to add module that emulates OPM chip (which was in Yamaha CX5M/II MSX computer, Sharp X68000, Sega System 16 and some others). It is a 4-operator FM chip, similar to YM2612 (OPN2), bu…
vsvsv updated
3 years ago
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I'm reporting here since there seems to be no repository for reporting hardware issues. Currently, YM2151 can't be read reliably at a full 8 MHz bus clock which is too fast. This means that its busy f…
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OK hopefully here is better place to discuss (coming from https://github.com/jpcima/ADLplug/issues/47), Re:
> It's also dependent how big difference between OPN and OPM, so, bank editor can be base…
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While OPN2 is nice, it lacks some features that the original OPM had:
- Noise
- Coarse detune (Detune 2)
- Multiple LFO waveforms, higher fidelity LFO speed etc.
- Amplitude/Pitch modulation de…
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openmsx can use yamaha sfg-01/05, which is ym2151 for playing music. I want to be able to record ym2151 vgm.
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It would be great if Dexed could be used to load and create 4-op patches accurately; even better if it could be used with a DX21 or DX11 directly (same as DX7). I see DX21 sysex import in the TODO of …
bryc updated
4 months ago
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何が正しいのかはっきりしないので資料を漁ってみました。
あわせてピンの番号も。
まず大前提として、
* ADPCMの基本クロック選択はビット7。
* FDC強制READYはビット6。
となります。これは実際に動作しているIOCS ROMや音源ドライバ等のコードがそうなっています。
# YAMAHAの資料
## YM2151.pdf (YAMAHA)
p.9の端子…
kg68k updated
1 month ago
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Create ym2151-js repo.
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Actually YM2414 is not supported by VGM, but YM2414 is actually pin compatible with YM2151, so I think you can record YM2414 to YM2151 VGM, so I can use hardware YM2151 VGM player to play music from Y…
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Most versions of ym2151.c and ym2151.h in other projects appear to be under the GPL. Unless this code is also available under a different license, we would need to either re-license the project or rep…