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[Core/Sound] fixed edge case in MAME YM2413 core when Key-Off occurs with envelope already off

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ekeeke 2022-02-13 23:16:44 +01:00
parent 17cbc63a10
commit 4a899e8262
4 changed files with 2 additions and 3 deletions
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builds/genesis_plus_gx_libretro.dll
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core/sound/ym2413.c
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@ -1208,9 +1208,8 @@ INLINE void KEY_OFF(YM2413_OPLL_SLOT *SLOT, UINT32 key_clr)
if( !SLOT->key )
{
/* phase -> Release */
if (SLOT->state>EG_REL)
SLOT->state = EG_REL;
/* phase -> Release (forced off if already at maximal attenuation level) */
SLOT->state = ( (SLOT->volume & ~3) == (MAX_ATT_INDEX & ~3) ) ? EG_OFF : EG_REL;
}
}
}