summaryrefslogtreecommitdiffstatshomepage
path: root/src/devices/sound/ay8910.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/devices/sound/ay8910.h')
-rw-r--r--src/devices/sound/ay8910.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/devices/sound/ay8910.h b/src/devices/sound/ay8910.h
index 8e6135a1404..146c1926522 100644
--- a/src/devices/sound/ay8910.h
+++ b/src/devices/sound/ay8910.h
@@ -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); }