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es5506.cpp : Fix silence (#5834)

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* es5506.cpp : Fix silence

* es5506.cpp : Fix algorithm
This commit is contained in:
cam900 2019-10-31 13:07:55 +09:00 committed by ajrhacker
parent 9e2706f4e4
commit ba273549dd
1 changed files with 1 additions and 1 deletions
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src/devices/sound/es5506.cpp
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@ -499,7 +499,7 @@ void es550x_device::compute_tables(u32 total_volume_bit, u32 exponent_bit, u32 m
const u8 exponent = (i >> mantissa_bit) & exponent_mask;
const u32 mantissa = (i & mantissa_mask) | mantissa_len;
m_volume_lookup[i] = (mantissa << mantissa_shift) >> (((mantissa_shift - mantissa_bit) + 1 + (1 << exponent_bit)) - exponent);
m_volume_lookup[i] = (mantissa << mantissa_shift) >> ((mantissa_shift + mantissa_bit + 1) - exponent);
}
}