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OPZ: same

This commit is contained in:
tildearrow 2022-04-07 01:04:35 -05:00
parent e1b77d7e2b
commit 96d45dafb2
1 changed files with 6 additions and 2 deletions
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8
src/engine/platform/sound/ymfm/ymfm_opz.cpp
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@ -338,8 +338,12 @@ int32_t opz_registers::clock_noise_and_lfo()
// manual, though it might not be implemented exactly this way on chip
uint32_t rate0 = lfo_rate();
uint32_t rate1 = lfo2_rate();
m_lfo_counter[0] += (0x10 | bitfield(rate0, 0, 4)) << bitfield(rate0, 4, 4);
m_lfo_counter[1] += (0x10 | bitfield(rate1, 0, 4)) << bitfield(rate1, 4, 4);
if (rate0 != 0) {
m_lfo_counter[0] += (0x10 | bitfield(rate0, 0, 4)) << bitfield(rate0, 4, 4);
}
if (rate1 != 0) {
m_lfo_counter[1] += (0x10 | bitfield(rate1, 0, 4)) << bitfield(rate1, 4, 4);
}
uint32_t lfo0 = bitfield(m_lfo_counter[0], 22, 8);
uint32_t lfo1 = bitfield(m_lfo_counter[1], 22, 8);