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-rw-r--r--src/devices/sound/ymz280b.cpp8
1 files changed, 4 insertions, 4 deletions
diff --git a/src/devices/sound/ymz280b.cpp b/src/devices/sound/ymz280b.cpp
index c4e1d2d30b5..f5a69bc6d37 100644
--- a/src/devices/sound/ymz280b.cpp
+++ b/src/devices/sound/ymz280b.cpp
@@ -40,8 +40,8 @@
#define MAX_SAMPLE_CHUNK 10000
-#define FRAC_BITS 9
-#define FRAC_ONE (1 << FRAC_BITS)
+static constexpr unsigned FRAC_BITS = 9;
+static constexpr s32 FRAC_ONE = 1 << FRAC_BITS;
//#define INTERNAL_BUFFER_SIZE (1 << 15)
#define INTERNAL_SAMPLE_RATE (m_master_clock * 2.0)
@@ -452,7 +452,7 @@ void ymz280b_device::sound_stream_update(sound_stream &stream, stream_sample_t *
/* interpolate */
while (remaining > 0 && voice->output_pos < FRAC_ONE)
{
- int interp_sample = (((s32)prev * (FRAC_ONE - voice->output_pos)) + ((s32)curr * voice->output_pos)) >> FRAC_BITS;
+ int interp_sample = ((s32(prev) * (FRAC_ONE - voice->output_pos)) + (s32(curr) * voice->output_pos)) >> FRAC_BITS;
*ldest++ += interp_sample * lvol;
*rdest++ += interp_sample * rvol;
voice->output_pos += voice->output_step;
@@ -516,7 +516,7 @@ void ymz280b_device::sound_stream_update(sound_stream &stream, stream_sample_t *
/* interpolate */
while (remaining > 0 && voice->output_pos < FRAC_ONE)
{
- int interp_sample = (((s32)prev * (FRAC_ONE - voice->output_pos)) + ((s32)curr * voice->output_pos)) >> FRAC_BITS;
+ int interp_sample = ((s32(prev) * (FRAC_ONE - voice->output_pos)) + (s32(curr) * voice->output_pos)) >> FRAC_BITS;
*ldest++ += interp_sample * lvol;
*rdest++ += interp_sample * rvol;
voice->output_pos += voice->output_step;