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Merge pull request #1845 from ajrhacker/inder_msm_fix

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Another attempt at improving accuracy of sound emulation in inder.cpp…
This commit is contained in:
R. Belmont 2016-12-18 08:49:39 -05:00 committed by GitHub
commit 2e0763b4e7
1 changed files with 6 additions and 4 deletions
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10
src/mame/drivers/inder.cpp
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@ -1242,17 +1242,19 @@ WRITE8_MEMBER( inder_state::sndbank_w )
void inder_state::update_mus()
{
if ((m_sound_addr < 0x40000) && (m_sndbank != 0xff))
m_13->ab_w(m_p_speech[m_sound_addr]);
m_13->ba_w(m_p_speech[m_sound_addr]);
else
m_13->ab_w(0);
m_13->ba_w(0);
}
WRITE_LINE_MEMBER( inder_state::vck_w )
{
m_9a->clock_w(0);
// The order of these writes is sensitive, though the schematic (not to scale)
// makes it seem that both 74HCT74 clock inputs should be raised simultaneously
m_9b->clock_w(0);
m_9a->clock_w(1);
m_9a->clock_w(0);
m_9b->clock_w(1);
m_9a->clock_w(1);
}
WRITE_LINE_MEMBER( inder_state::qc7a_w )