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mc6843: Clear STRB at command start

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This commit is contained in:
AJR 2022-12-13 10:19:05 -05:00
parent 580a4f26e5
commit 05803c6130
1 changed files with 4 additions and 0 deletions
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4
src/devices/machine/mc6843.cpp
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@ -308,6 +308,10 @@ TIMER_CALLBACK_MEMBER(mc6843_device::update_tick)
void mc6843_device::command_start()
{
// clear errors
m_strb = 0;
m_isr &= 0x7;
assert(m_state == S_IDLE);
switch(m_cmr & 0xf) {