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r19261 Monday 3rd December, 2012 at 02:07:52 UTC by R. Belmont
6850acia: bring IRQ line into standard usage (ASSERT_LINE = IRQ active) [R. Belmont] (nw portion) These are the only 3 drivers I found that appear to use the 6850 IRQ callback; many others had it commented out.  If you own such a driver and you commented it out due to weird behavior or whatever (isa_gus.c?) you might want to try again.

[src/emu/machine]	6850acia.c
[src/mame/drivers]	bfcobra.c mpu4vid.c
[src/mess/drivers]	mirage.c

trunk/src/emu/machine/6850acia.c

r19260	r19261
155	155	m_tx_state = START;
156	156	m_irq = 0;
157	157
158		m_out_irq_func(1);
	158	m_out_irq_func(CLEAR_LINE);
159	159
160	160	if (m_first_reset)
161	161	{
r19260	r19261
320	320	if (irq)
321	321	{
322	322	m_status |= ACIA6850_STATUS_IRQ;
323		m_out_irq_func(0);
	323	m_out_irq_func(ASSERT_LINE);
324	324	}
325	325	else
326	326	{
327	327	m_status &= ~ACIA6850_STATUS_IRQ;
328		m_out_irq_func(1);
	328	m_out_irq_func(CLEAR_LINE);
329	329	}
330	330	}
331	331	}

trunk/src/mess/drivers/mirage.c

r19260	r19261
102	102
103	103	WRITE_LINE_MEMBER(mirage_state::acia_irq_w)
104	104	{
105		m_maincpu->set_input_line(M6809_FIRQ_LINE, state ? CLEAR_LINE : ASSERT_LINE);
	105	m_maincpu->set_input_line(M6809_FIRQ_LINE, state);
106	106	}
107	107
108	108	void mirage_state::fdc_intrq_w(bool state)

trunk/src/mame/drivers/mpu4vid.c

r19260	r19261
323	323	{
324	324	mpu4vid_state *state = machine.driver_data<mpu4vid_state>();
325	325	machine.device("video")->execute().set_input_line(1, state->m_m6840_irq_state ? ASSERT_LINE : CLEAR_LINE);
326		machine.device("video")->execute().set_input_line(2, state->m_m6850_irq_state ? CLEAR_LINE : ASSERT_LINE);
	326	machine.device("video")->execute().set_input_line(2, state->m_m6850_irq_state ? ASSERT_LINE : CLEAR_LINE);
327	327	machine.device("video")->execute().set_input_line(3, state->m_scn2674->get_irq_state() ? ASSERT_LINE : CLEAR_LINE);
328	328	}
329	329
r19260	r19261
356	356
357	357	WRITE_LINE_MEMBER(mpu4vid_state::m6809_acia_irq)
358	358	{
359		m_m68k_acia_cts = !state;
360		machine().device("maincpu")->execute().set_input_line(M6809_IRQ_LINE, state ? CLEAR_LINE : ASSERT_LINE);
	359	m_m68k_acia_cts = state;
	360	machine().device("maincpu")->execute().set_input_line(M6809_IRQ_LINE, state);
361	361	}
362	362
363	363	static ACIA6850_INTERFACE( m6809_acia_if )
r19260	r19261
399	399
400	400	WRITE_LINE_MEMBER(mpu4vid_state::m68k_acia_irq)
401	401	{
402		m_m6809_acia_cts = !state;
	402	m_m6809_acia_cts = state;
403	403	m_m6850_irq_state = state;
404	404	update_mpu68_interrupts(machine());
405	405	}

trunk/src/mame/drivers/bfcobra.c

r19260	r19261
1631	1631
1632	1632	WRITE_LINE_MEMBER(bfcobra_state::z80_acia_irq)
1633	1633	{
1634		m_acia_irq = state ? CLEAR_LINE : ASSERT_LINE;
	1634	m_acia_irq = state;
1635	1635	update_irqs(machine());
1636	1636	}
1637	1637

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