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Doing the dummy read immediately on reset.

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This commit is contained in:
Michael Zapf 2013-07-22 16:13:51 +00:00
parent bc3895fa74
commit 0bf36324de
1 changed files with 8 additions and 2 deletions
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10
src/emu/sound/tms5220.c
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@ -1501,9 +1501,15 @@ void tms5220_device::device_reset()
memset(m_x, 0, sizeof(m_x));
if (m_speechrom)
{
m_speechrom->load_address(0);
m_schedule_dummy_read = TRUE;
// MZ: Do the dummy read immediately. The previous line will cause a
// shift in the address pointer in the VSM. When the next command is a
// load_address, no dummy read will occur, hence the address will be
// falsely shifted.
m_speechrom->read(1);
m_schedule_dummy_read = FALSE;
}
}
/**********************************************************************************************