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r20476 Friday 25th January, 2013 at 22:07:14 UTC by Wilbert Pol
(MESS) gamecom.c: A few cleanups (nw)

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

trunk/src/mess/machine/gamecom.c

r20475	r20476
7	7
8	8	TIMER_CALLBACK_MEMBER(gamecom_state::gamecom_clock_timer_callback)
9	9	{
10		UINT8 * RAM = machine().root_device().memregion("maincpu")->base();
	10	UINT8 * RAM = m_region_maincpu->base();
11	11	UINT8 val = ( ( RAM[SM8521_CLKT] & 0x3F ) + 1 ) & 0x3F;
12	12	RAM[SM8521_CLKT] = ( RAM[SM8521_CLKT] & 0xC0 ) | val;
13		machine().device("maincpu")->execute().set_input_line(CK_INT, ASSERT_LINE );
	13	m_maincpu->set_input_line(CK_INT, ASSERT_LINE );
14	14	}
15	15
16	16	void gamecom_state::machine_reset()
17	17	{
18		UINT8 *rom = memregion("kernel")->base();
19		membank( "bank1" )->set_base( rom );
20		membank( "bank2" )->set_base( rom );
21		membank( "bank3" )->set_base( rom );
22		membank( "bank4" )->set_base( rom );
	18	UINT8 *rom = m_region_kernel->base();
	19	m_bank1->set_base( rom );
	20	m_bank2->set_base( rom );
	21	m_bank3->set_base( rom );
	22	m_bank4->set_base( rom );
23	23
24	24	m_cartridge = NULL;
25	25	}
26	26
27	27	void gamecom_state::gamecom_set_mmu(UINT8 mmu, UINT8 data )
28	28	{
29		char bank[8];
30		sprintf(bank,"bank%d",mmu);
31	29	if (data < 0x20)
32	30	{
33	31	/* select internal ROM bank */
34		membank( bank )->set_base( memregion("kernel")->base() + (data << 13) );
	32	switch ( mmu )
	33	{
	34	case 1: m_bank1->set_base( m_region_kernel->base() + (data << 13) ); break;
	35	case 2: m_bank2->set_base( m_region_kernel->base() + (data << 13) ); break;
	36	case 3: m_bank3->set_base( m_region_kernel->base() + (data << 13) ); break;
	37	case 4: m_bank4->set_base( m_region_kernel->base() + (data << 13) ); break;
	38	}
35	39	}
36	40	else
37	41	{
38	42	/* select cartridge bank */
39	43	if ( m_cartridge )
40		membank( bank )->set_base( m_cartridge + ( data << 13 ) );
	44	{
	45	switch ( mmu )
	46	{
	47	case 1: m_bank1->set_base( m_cartridge + ( data << 13 ) ); break;
	48	case 2: m_bank2->set_base( m_cartridge + ( data << 13 ) ); break;
	49	case 3: m_bank3->set_base( m_cartridge + ( data << 13 ) ); break;
	50	case 4: m_bank4->set_base( m_cartridge + ( data << 13 ) ); break;
	51	}
	52	}
41	53	}
42	54	}
43	55
r20475	r20476
47	59
48	60	if ( column == 0 )
49	61	{
50		if ( !BIT( ioport("IN2")->read(), 2) )
	62	if ( !BIT( m_io_in2->read(), 2) )
51	63	{
52		m_stylus_x = ioport("STYX")->read() >> 4;
53		m_stylus_y = ioport("STYY")->read() >> 4;
	64	m_stylus_x = m_io_styx->read() >> 4;
	65	m_stylus_y = m_io_styy->read() >> 4;
54	66	}
55	67	else
56	68	{
r20475	r20476
139	151	/* P0 bit 7 cleared => 8B (button A) */
140	152	/* P1 bit 0 cleared => 8C (button B) */
141	153	/* P1 bit 1 cleared => 8D (button C) */
142		m_p_ram[SM8521_P0] = ioport("IN0")->read();
143		m_p_ram[SM8521_P1] = (m_p_ram[SM8521_P1] & 0xFC) | ( ioport("IN1")->read() & 3 );
	154	m_p_ram[SM8521_P0] = m_io_in0->read();
	155	m_p_ram[SM8521_P1] = (m_p_ram[SM8521_P1] & 0xFC) | ( m_io_in1->read() & 3 );
144	156	break;
145	157	case 0xFFFF:    /* keys #2 */
146	158	/* P0 bit 0 cleared => 88 (power) */
r20475	r20476
153	165	/* P0 bit 7 cleared => A0 */
154	166	/* P1 bit 0 cleared => A0 */
155	167	/* P1 bit 1 cleared => A0 */
156		m_p_ram[SM8521_P0] = (m_p_ram[SM8521_P0] & 0xFC) | ( ioport("IN2")->read() & 3 );
	168	m_p_ram[SM8521_P0] = (m_p_ram[SM8521_P0] & 0xFC) | ( m_io_in2->read() & 3 );
157	169	m_p_ram[SM8521_P1] = 0xFF;
158	170	break;
159	171	}
r20475	r20476
537	549	DRIVER_INIT_MEMBER(gamecom_state,gamecom)
538	550	{
539	551	m_clock_timer = machine().scheduler().timer_alloc(timer_expired_delegate(FUNC(gamecom_state::gamecom_clock_timer_callback),this));
540		m_p_ram = memregion("maincpu")->base(); // required here because pio_w gets called before machine_reset
	552	m_p_ram = m_region_maincpu->base(); // required here because pio_w gets called before machine_reset
541	553	}
542	554
543	555	DEVICE_IMAGE_LOAD( gamecom_cart1 )

trunk/src/mess/includes/gamecom.h

r20475	r20476
209	209	{
210	210	public:
211	211	gamecom_state(const machine_config &mconfig, device_type type, const char *tag)
212		: driver_device(mconfig, type, tag),
213		m_maincpu(*this, "maincpu"),
214		m_p_nvram(*this,"p_nvram"),
215		m_p_videoram(*this,"p_videoram") { }
	212	: driver_device(mconfig, type, tag)
	213	, m_maincpu(*this, "maincpu")
	214	, m_p_nvram(*this,"p_nvram")
	215	, m_p_videoram(*this,"p_videoram")
	216	, m_bank1(*this, "bank1")
	217	, m_bank2(*this, "bank2")
	218	, m_bank3(*this, "bank3")
	219	, m_bank4(*this, "bank4")
	220	, m_region_maincpu(*this, "maincpu")
	221	, m_region_kernel(*this, "kernel")
	222	, m_io_in0(*this, "IN0")
	223	, m_io_in1(*this, "IN1")
	224	, m_io_in2(*this, "IN2")
	225	, m_io_styx(*this, "STYX")
	226	, m_io_styy(*this, "STYY")
	227	{ }
216	228
217	229	required_device<cpu_device> m_maincpu;
218	230	DECLARE_READ8_MEMBER( gamecom_internal_r );
r20475	r20476
246	258	INTERRUPT_GEN_MEMBER(gamecom_interrupt);
247	259	TIMER_CALLBACK_MEMBER(gamecom_clock_timer_callback);
248	260	TIMER_CALLBACK_MEMBER(gamecom_scanline);
	261
	262	protected:
	263	required_memory_bank m_bank1;
	264	required_memory_bank m_bank2;
	265	required_memory_bank m_bank3;
	266	required_memory_bank m_bank4;
	267	required_memory_region m_region_maincpu;
	268	required_memory_region m_region_kernel;
	269	required_ioport m_io_in0;
	270	required_ioport m_io_in1;
	271	required_ioport m_io_in2;
	272	required_ioport m_io_styx;
	273	required_ioport m_io_styy;
249	274	};
250	275
251	276

trunk/src/mess/drivers/gamecom.c

r20475	r20476
91	91
92	92	INTERRUPT_GEN_MEMBER(gamecom_state::gamecom_interrupt)
93	93	{
94		machine().device("maincpu")->execute().set_input_line(LCDC_INT, ASSERT_LINE );
	94	m_maincpu->set_input_line(LCDC_INT, ASSERT_LINE );
95	95	}
96	96
97	97	static MACHINE_CONFIG_START( gamecom, gamecom_state )

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