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mos8520: tod is not latched when CRB_ALARM is set

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This commit is contained in:
Dirk Best 2025-02-13 13:12:52 +01:00
parent 19162d83e1
commit 361e11b3a7
1 changed files with 3 additions and 1 deletions
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4
src/devices/machine/mos6526.cpp
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@ -926,7 +926,9 @@ uint8_t mos8520_device::read(offs_t offset)
switch (offset & 0x0f)
{
case TOD_MIN:
if (!m_tod_latched)
// tod is not latched when CRB_ALARM is set
// test case: amigaocs_flop:batman1
if (!m_tod_latched && !CRB_ALARM)
{
m_tod_latched = true;
m_tod_latch = m_tod;