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author Robbbert <Robbbert@users.noreply.github.com>2019-10-20 12:16:00 +1100
committer Robbbert <Robbbert@users.noreply.github.com>2019-10-20 12:16:00 +1100
commit57802cdd7f843f635a1a068a70d16218d3a440eb (patch)
tree5c483650a64d7e59a8cee21e54e81d2572d84b50 /src/devices/cpu/upd7810/upd7810.cpp
parent24e839d947a5be7dee6a35209542d8c02697f380 (diff)
(nw) upd7801: reworked following unfavourable comments
- reverted all of last commit - fixing the bug a different way
Diffstat (limited to 'src/devices/cpu/upd7810/upd7810.cpp')
-rw-r--r--src/devices/cpu/upd7810/upd7810.cpp7
1 files changed, 4 insertions, 3 deletions
diff --git a/src/devices/cpu/upd7810/upd7810.cpp b/src/devices/cpu/upd7810/upd7810.cpp
index e88b33d91aa..99e0f5a9980 100644
--- a/src/devices/cpu/upd7810/upd7810.cpp
+++ b/src/devices/cpu/upd7810/upd7810.cpp
@@ -1889,6 +1889,7 @@ void upd7801_device::device_reset()
upd7810_device::device_reset();
MA = 0; /* Port A is output port on the uPD7801 */
m_ovc0 = 0;
+ m_int2 = 0;
}
void upd78c05_device::device_reset()
@@ -2005,19 +2006,19 @@ void upd7801_device::execute_set_input(int irqline, int state)
/* Check if the ES bit is set then check for rising edge, otherwise falling edge */
if ( MKL & 0x20 )
{
- if ( m_int2 != CLEAR_LINE && state == ASSERT_LINE )
+ if ( m_int2 == CLEAR_LINE && state == ASSERT_LINE )
{
IRR |= INTF2;
}
}
else
{
- if ( m_int2 != ASSERT_LINE && state == CLEAR_LINE )
+ if ( m_int2 == ASSERT_LINE && state == CLEAR_LINE )
{
IRR |= INTF2;
}
}
- m_int2 = !state;
+ m_int2 = state;
break;
}
}