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r23727 Saturday 15th June, 2013 at 18:04:29 UTC by Fabio Priuli

(MESS) nes.c: emulated microphone input for old famicom controller, as detected by games (i.e. it only detects voice/no voice, while the actual transmission of your voice to the speakers is not emulated). To use it in games expecting you to blow or shout in the mic, select the "Gamepad (Older Version)" as "P2 Controller" in the Driver Configuration submenu, and press "6" when the game requires it. [Fabio Priuli] input is recognized both by BASIC (peeking at $4016) and by Raid on Bungeling Bay 2P mode, so I think it's correct...

[src/mess/drivers]	nes.c
[src/mess/includes]	nes.h
[src/mess/machine]	nes.c

trunk/src/mess/machine/nes.c

r23726	r23727
51	51	m_paddle_btn_latch = 0;
52	52	}
53	53
54		static void nes_state_register( running_machine &machine )
	54	void nes_state::state_register()
55	55	{
56		nes_state *state = machine.driver_data<nes_state>();
	56	save_item(NAME(m_last_frame_flip));
57	57
58		state->save_item(NAME(state->m_last_frame_flip));
	58	save_item(NAME(m_fds_motor_on));
	59	save_item(NAME(m_fds_door_closed));
	60	save_item(NAME(m_fds_current_side));
	61	save_item(NAME(m_fds_head_position));
	62	save_item(NAME(m_fds_status0));
	63	save_item(NAME(m_fds_read_mode));
	64	save_item(NAME(m_fds_write_reg));
	65	save_item(NAME(m_fds_last_side));
	66	save_item(NAME(m_fds_count));
	67	save_item(NAME(m_fds_mirroring));
59	68
60		state->save_item(NAME(state->m_fds_motor_on));
61		state->save_item(NAME(state->m_fds_door_closed));
62		state->save_item(NAME(state->m_fds_current_side));
63		state->save_item(NAME(state->m_fds_head_position));
64		state->save_item(NAME(state->m_fds_status0));
65		state->save_item(NAME(state->m_fds_read_mode));
66		state->save_item(NAME(state->m_fds_write_reg));
67		state->save_item(NAME(state->m_fds_last_side));
68		state->save_item(NAME(state->m_fds_count));
69		state->save_item(NAME(state->m_fds_mirroring));
	69	save_pointer(NAME(m_ciram), 0x800);
70	70
71		state->save_pointer(NAME(state->m_ciram), 0x800);
	71	if (m_disk_expansion)
	72	save_pointer(NAME(m_vram), 0x800);
72	73
73		if (state->m_disk_expansion)
74		state->save_pointer(NAME(state->m_vram), 0x800);
75
76		state->save_item(NAME(state->m_pad_latch));
77		state->save_item(NAME(state->m_zapper_latch));
78		state->save_item(NAME(state->m_paddle_latch));
79		state->save_item(NAME(state->m_paddle_btn_latch));
80		state->save_item(NAME(state->m_mjpanel_latch));
	74	save_item(NAME(m_pad_latch));
	75	save_item(NAME(m_zapper_latch));
	76	save_item(NAME(m_paddle_latch));
	77	save_item(NAME(m_paddle_btn_latch));
	78	save_item(NAME(m_mjpanel_latch));
	79	save_item(NAME(m_fck_scan));
	80	save_item(NAME(m_fck_mode));
	81	save_item(NAME(m_mic_obstruct));
81	82	}
82	83
83	84
r23726	r23727
197	198	membank("fdsram")->set_base(m_fds_ram);
198	199	}
199	200
200		nes_state_register(machine());
	201	state_register();
201	202	}
202	203
203	204
r23726	r23727
374	375
375	376	READ8_MEMBER(nes_state::fc_in0_r)
376	377	{
	378	int cfg = m_io_ctrlsel->read();
377	379	int exp = m_io_exp->read();
378	380
379	381	// Some games expect bit 6 to be set because the last entry on the data bus shows up
r23726	r23727
383	385
384	386	// shift
385	387	m_pad_latch[0] >>= 1;
386
	388
	389	// microphone bit
	390	if ((cfg & 0x00f0) == 0x00f0)
	391	ret |= m_mic_obstruct;   //bit2!
	392
387	393	// EXP input
388	394	switch (exp & 0x0f)
389	395	{
r23726	r23727
542	548	m_paddle_btn_latch = 0;
543	549	m_paddle_latch = 0;
544	550	m_mjpanel_latch = 0;
	551	m_mic_obstruct = 0;
545	552
546	553	// P1 inputs
547	554	switch (cfg & 0x000f)
r23726	r23727
566	573	m_pad_latch[1] = m_io_cc_right->read();
567	574	break;
568	575
	576	case 0x0f:  // pad 2 old style with microphone instead of START/SELECT keys
	577	// we only emulate obstruction of mic (when you blow or talk into it)
	578	m_mic_obstruct = m_io_pad[1]->read() & 0x04;
	579	m_pad_latch[1] = (m_io_pad[1]->read() & ~0x04);
	580	break;
569	581	}
570	582
571	583	// P3 & P4 inputs in Famicom (e.g. through Hori Twin Adapter or Hori 4 Players Adapter)

trunk/src/mess/includes/nes.h

r23726	r23727
512	512	DECLARE_READ8_MEMBER(psg_4015_r);
513	513	DECLARE_WRITE8_MEMBER(psg_4015_w);
514	514	DECLARE_WRITE8_MEMBER(psg_4017_w);
	515	void state_register();
515	516
516	517	/***** FDS-floppy related *****/
517	518
r23726	r23727
551	552
552	553	void fds_irq(int scanline, int vblank, int blanked);
553	554
	555	// input related
554	556	UINT32 m_pad_latch[4];
555	557	UINT8 m_zapper_latch[2][3];
556	558	UINT8 m_paddle_latch, m_paddle_btn_latch;
557	559	UINT8 m_mjpanel_latch;
558	560	UINT8 m_fck_scan, m_fck_mode;
	561	UINT8 m_mic_obstruct;
559	562
560	563	protected:
561	564	virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr);

trunk/src/mess/drivers/nes.c

r23726	r23727
184	184	PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_PLAYER(2)              PORT_CONDITION("CTRLSEL", 0x00f0, EQUALS, 0x0010)
185	185	PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_PLAYER(2)              PORT_CONDITION("CTRLSEL", 0x00f0, EQUALS, 0x0010)
186	186	PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_PLAYER(2)             PORT_CONDITION("CTRLSEL", 0x00f0, EQUALS, 0x0010)
	187	PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_NAME("P2 A") PORT_PLAYER(2)  PORT_CONDITION("CTRLSEL", 0x00f0, EQUALS, 0x00f0)
	188	PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_NAME("P2 B") PORT_PLAYER(2)  PORT_CONDITION("CTRLSEL", 0x00f0, EQUALS, 0x00f0)
	189	PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_SELECT ) PORT_NAME("Microphone") PORT_PLAYER(2) PORT_CONDITION("CTRLSEL", 0x00f0, EQUALS, 0x00f0)
	190	PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_UNUSED )                                    PORT_CONDITION("CTRLSEL", 0x00f0, EQUALS, 0x00f0)
	191	PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP ) PORT_PLAYER(2)                PORT_CONDITION("CTRLSEL", 0x00f0, EQUALS, 0x00f0)
	192	PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_PLAYER(2)              PORT_CONDITION("CTRLSEL", 0x00f0, EQUALS, 0x00f0)
	193	PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_PLAYER(2)              PORT_CONDITION("CTRLSEL", 0x00f0, EQUALS, 0x00f0)
	194	PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_PLAYER(2)             PORT_CONDITION("CTRLSEL", 0x00f0, EQUALS, 0x00f0)
187	195
188	196	INPUT_PORTS_END
189	197
r23726	r23727
523	531	PORT_CONFSETTING(  0x0000, "Unconnected" )
524	532	PORT_CONFSETTING(  0x0010, "Gamepad" )
525	533	PORT_CONFSETTING(  0x0020, "Crazy Climber pad (Right)" )
	534	PORT_CONFSETTING(  0x00f0, "Gamepad (Older Version)" )
526	535	PORT_CONFNAME( 0x0f00, 0x0000, "P3 Controller") PORT_CONDITION("EXP", 0x0f, EQUALS, 0x07)
527	536	PORT_CONFSETTING(  0x0000, "Unconnected" )
528	537	PORT_CONFSETTING(  0x0100, "Gamepad" )

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