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r20531 Sunday 27th January, 2013 at 13:45:52 UTC by Wilbert Pol
(MESS) odyssey2.c: Tagmap cleanups (nw)

[src/mess/drivers]

odyssey2.c

trunk/src/mess/drivers/odyssey2.c

r20530	r20531
31	31	, m_i8243(*this, "i8243")
32	32	, m_i8244(*this, "i8244")
33	33	, m_ef9340_1(*this, "ef9340_1")
34		{ }
	34	, m_user1(*this, "user1")
	35	, m_bank1(*this, "bank1")
	36	, m_bank2(*this, "bank2")
	37	, m_key0(*this, "KEY0")
	38	, m_key1(*this, "KEY1")
	39	, m_key2(*this, "KEY2")
	40	, m_key3(*this, "KEY3")
	41	, m_key4(*this, "KEY4")
	42	, m_key5(*this, "KEY5")
	43	, m_joy0(*this, "JOY0")
	44	, m_joy1(*this, "JOY1")
	45	{ }
35	46
36	47	required_device<cpu_device> m_maincpu;
37	48	required_device<screen_device> m_screen;
r20530	r20531
79	90	static const UINT8 P1_VDC_COPY_MODE_ENABLE = 0x40;
80	91	static const UINT8 P2_KEYBOARD_SELECT_MASK = 0x07; /* select row to scan */
81	92
	93	required_memory_region m_user1;
	94
	95	required_memory_bank m_bank1;
	96	required_memory_bank m_bank2;
	97
	98	required_ioport m_key0;
	99	required_ioport m_key1;
	100	required_ioport m_key2;
	101	required_ioport m_key3;
	102	required_ioport m_key4;
	103	required_ioport m_key5;
	104	required_ioport m_joy0;
	105	required_ioport m_joy1;
	106
82	107	UINT8   m_g7400_ic674_decode[8];
83	108	UINT8   m_g7400_ic678_decode[8];
84	109
r20530	r20531
267	292	{
268	293	case 12288:
269	294	/* 12KB cart support (for instance, KTAA as released) */
270		membank( "bank1" )->set_base( memregion("user1")->base() + (m_p1 & 0x03) * 0xC00 );
271		membank( "bank2" )->set_base( memregion("user1")->base() + (m_p1 & 0x03) * 0xC00 + 0x800 );
	295	m_bank1->set_base( m_user1->base() + (m_p1 & 0x03) * 0xC00 );
	296	m_bank2->set_base( m_user1->base() + (m_p1 & 0x03) * 0xC00 + 0x800 );
272	297	break;
273	298
274	299	case 16384:
275	300	/* 16KB cart support (for instance, full sized version KTAA) */
276		membank( "bank1" )->set_base( memregion("user1")->base() + (m_p1 & 0x03) * 0x1000 + 0x400 );
277		membank( "bank2" )->set_base( memregion("user1")->base() + (m_p1 & 0x03) * 0x1000 + 0xC00 );
	301	m_bank1->set_base( m_user1->base() + (m_p1 & 0x03) * 0x1000 + 0x400 );
	302	m_bank2->set_base( m_user1->base() + (m_p1 & 0x03) * 0x1000 + 0xC00 );
278	303	break;
279	304
280	305	default:
281		membank("bank1")->set_base(memregion("user1")->base() + (m_p1 & 0x03) * 0x800);
282		membank("bank2")->set_base(memregion("user1")->base() + (m_p1 & 0x03) * 0x800 );
	306	m_bank1->set_base( m_user1->base() + (m_p1 & 0x03) * 0x800 );
	307	m_bank2->set_base( m_user1->base() + (m_p1 & 0x03) * 0x800 );
283	308	break;
284	309	}
285	310	}
r20530	r20531
515	540	{
516	541	UINT8 h = 0xFF;
517	542	int i, j;
518		static const char *const keynames[] = { "KEY0", "KEY1", "KEY2", "KEY3", "KEY4", "KEY5" };
	543	ioport_port* ioports[] = { m_key0, m_key1, m_key2, m_key3, m_key4, m_key5 };
519	544
520	545	if (!(m_p1 & P1_KEYBOARD_SCAN_ENABLE))
521	546	{
522	547	if ((m_p2 & P2_KEYBOARD_SELECT_MASK) <= 5)  /* read keyboard */
523	548	{
524		h &= ioport(keynames[m_p2 & P2_KEYBOARD_SELECT_MASK])->read();
	549	h &= ioports[m_p2 & P2_KEYBOARD_SELECT_MASK]->read();
525	550	}
526	551
527	552	for (i= 0x80, j = 0; i > 0; i >>= 1, j++)
r20530	r20531
566	591
567	592	if ((m_p2 & P2_KEYBOARD_SELECT_MASK) == 1)
568	593	{
569		data &= ioport("JOY0")->read();       /* read joystick 1 */
	594	data &= m_joy0->read();       /* read joystick 1 */
570	595	}
571	596
572	597	if ((m_p2 & P2_KEYBOARD_SELECT_MASK) == 0)
573	598	{
574		data &= ioport("JOY1")->read();       /* read joystick 2 */
	599	data &= m_joy1->read();       /* read joystick 2 */
575	600	}
576	601
577	602	return data;

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