diff options
Diffstat (limited to 'src/mame/drivers')
-rw-r--r-- | src/mame/drivers/brkthru.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/src/mame/drivers/brkthru.c b/src/mame/drivers/brkthru.c index ec082e09302..82521d02b08 100644 --- a/src/mame/drivers/brkthru.c +++ b/src/mame/drivers/brkthru.c @@ -72,6 +72,9 @@ static WRITE8_HANDLER( brkthru_1803_w ) /* bit 0 = NMI enable */ state->m_nmi_mask = ~data & 1; + if(data & 2) + device_set_input_line(state->m_maincpu, 0, CLEAR_LINE); + /* bit 1 = ? maybe IRQ acknowledge */ } @@ -82,6 +85,10 @@ static WRITE8_HANDLER( darwin_0803_w ) state->m_nmi_mask = data & 1; logerror("0803 %02X\n",data); + if(data & 2) + device_set_input_line(state->m_maincpu, 0, CLEAR_LINE); + + /* bit 1 = ? maybe IRQ acknowledge */ } @@ -97,7 +104,8 @@ static INPUT_CHANGED( coin_inserted ) brkthru_state *state = field.machine().driver_data<brkthru_state>(); /* coin insertion causes an IRQ */ - device_set_input_line(state->m_maincpu, 0, newval ? CLEAR_LINE : ASSERT_LINE); + if(oldval) + device_set_input_line(state->m_maincpu, 0, ASSERT_LINE); } |