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ay8910.h : Fix duty masking (#5616)

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cam900 2019-09-11 01:43:22 +09:00 committed by ajrhacker
parent 1fc8f18275
commit e4f1fad214
1 changed files with 1 additions and 1 deletions
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src/devices/sound/ay8910.h
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@ -263,7 +263,7 @@ private:
inline bool tone_enable(int chan) { return BIT(m_regs[AY_ENABLE], chan); }
inline u8 tone_volume(tone_t *tone) { return tone->volume & (is_expanded_mode() ? 0x1f : 0x0f); }
inline u8 tone_envelope(tone_t *tone) { return (tone->volume >> (is_expanded_mode() ? 5 : 4)) & ((m_feature & PSG_EXTENDED_ENVELOPE) ? 3 : 1); }
inline u8 tone_duty(tone_t *tone) { return is_expanded_mode() ? (tone->duty & 0x8 ? 0x8 : tone->duty) : 0x4; }
inline u8 tone_duty(tone_t *tone) { return is_expanded_mode() ? (tone->duty & 0x8 ? 0x8 : (tone->duty & 0xf)) : 0x4; }
inline u8 get_envelope_chan(int chan) { return is_expanded_mode() ? chan : 0; }
inline bool noise_enable(int chan) { return BIT(m_regs[AY_ENABLE], 3 + chan); }