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[Core/Sound] added accurate YM2612 status & BUSY flag emulation for M…

…AME core (verified on discrete and ASIC-integrated chips)
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ekeeke committed Jan 7, 2018
1 parent d0aa36a commit fee2bc8c28b66659ec3397f3582bf8128ce678a3
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@@ -121,7 +121,10 @@ Genesis Plus GX 1.7.5 (xx/xx/xxxx) (Eke-Eke)
[Core/Sound]
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* added discrete YM2612 DAC distortion emulation (optional)
* replaced configurable YM2612 DAC quantization by configurable YM2612 chip model emulation (discrete, ASIC-integrated or enhanced)
* added DAC distortion emulation for discrete YM2612 chip model
* added accurate status & BUSY flag emulation for discrete and ASIC-integrated YM2612 chip models (verified on real hardware)
* improved 9-bit DAC quantization accuracy for discrete and ASIC-integrated YM2612 chip models (verified on YM2612 die)
* rewrote optimized & more accurate PSG core from scratch
* removed PSG boost noise feature & added optional high-quality PSG resampling
* fixed YM2612 self-feedback regression introduced in 1.7.1
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