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machine/upd71071.cpp: Initialize address and count registers - fixes random HDD failures in fmtowns. (#10580)

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r09 2022-11-25 14:56:42 +01:00 committed by GitHub
parent defc5c612d
commit c57e1e7e40
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1 changed files with 4 additions and 2 deletions
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src/devices/machine/upd71071.cpp
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@ -122,8 +122,10 @@ void upd71071_device::device_start()
m_reg.device_control = 0;
m_reg.mask = 0x0f; // mask all channels
for (int x = 0; x < 4; x++)
m_reg.mode_control[x] = 0;
std::fill(std::begin(m_reg.address_current), std::end(m_reg.address_current), 0);
std::fill(std::begin(m_reg.count_current), std::end(m_reg.count_current), 0);
std::fill(std::begin(m_reg.mode_control), std::end(m_reg.mode_control), 0);
save_item(NAME(m_reg.initialise));
save_item(NAME(m_reg.channel));