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r20501 Saturday 26th January, 2013 at 19:12:31 UTC by Wilbert Pol
(MESS) jr100.c: Tagmap cleanups (nw)

[src/mess/drivers]

jr100.c

trunk/src/mess/drivers/jr100.c

r20500	r20501
25	25	{
26	26	public:
27	27	jr100_state(const machine_config &mconfig, device_type type, const char *tag)
28		: driver_device(mconfig, type, tag) ,
29		m_ram(*this, "ram"),
30		m_pcg(*this, "pcg"),
31		m_vram(*this, "vram"){ }
	28	: driver_device(mconfig, type, tag)
	29	, m_ram(*this, "ram")
	30	, m_pcg(*this, "pcg")
	31	, m_vram(*this, "vram")
	32	, m_via(*this, "via")
	33	, m_cassette(*this, CASSETTE_TAG)
	34	, m_beeper(*this, BEEPER_TAG)
	35	, m_speaker(*this, SPEAKER_TAG)
	36	, m_region_maincpu(*this, "maincpu")
	37	, m_line0(*this, "LINE0")
	38	, m_line1(*this, "LINE1")
	39	, m_line2(*this, "LINE2")
	40	, m_line3(*this, "LINE3")
	41	, m_line4(*this, "LINE4")
	42	, m_line5(*this, "LINE5")
	43	, m_line6(*this, "LINE6")
	44	, m_line7(*this, "LINE7")
	45	, m_line8(*this, "LINE8")
	46	{ }
32	47
33	48	required_shared_ptr<UINT8> m_ram;
34	49	required_shared_ptr<UINT8> m_pcg;
35	50	required_shared_ptr<UINT8> m_vram;
36	51	UINT8 m_keyboard_line;
37	52	bool m_use_pcg;
38		UINT8 m_speaker;
	53	UINT8 m_speaker_data;
39	54	UINT16 m_t1latch;
40	55	UINT8 m_beep_en;
41	56	DECLARE_WRITE8_MEMBER(jr100_via_w);
r20500	r20501
48	63	DECLARE_WRITE8_MEMBER(jr100_via_write_a);
49	64	DECLARE_WRITE8_MEMBER(jr100_via_write_b);
50	65	DECLARE_WRITE_LINE_MEMBER(jr100_via_write_cb2);
	66
	67	protected:
	68	required_device<via6522_device> m_via;
	69	required_device<cassette_image_device> m_cassette;
	70	required_device<device_t> m_beeper;
	71	required_device<device_t> m_speaker;
	72	required_memory_region m_region_maincpu;
	73	required_ioport m_line0;
	74	required_ioport m_line1;
	75	required_ioport m_line2;
	76	required_ioport m_line3;
	77	required_ioport m_line4;
	78	required_ioport m_line5;
	79	required_ioport m_line6;
	80	required_ioport m_line7;
	81	required_ioport m_line8;
51	82	};
52	83
53	84
r20500	r20501
62	93	m_beep_en = ((data & 0xe0) == 0xe0);
63	94
64	95	if(!m_beep_en)
65		beep_set_state(machine().device(BEEPER_TAG),0);
	96	beep_set_state(m_beeper,0);
66	97	}
67	98
68	99	/* T1L-L */
r20500	r20501
81	112	/* writing here actually enables the beeper, if above masking condition is satisfied */
82	113	if(m_beep_en)
83	114	{
84		beep_set_state(machine().device(BEEPER_TAG),1);
85		beep_set_frequency(machine().device(BEEPER_TAG),894886.25 / (double)(m_t1latch) / 2.0);
	115	beep_set_state(m_beeper,1);
	116	beep_set_frequency(m_beeper,894886.25 / (double)(m_t1latch) / 2.0);
86	117	}
87	118	}
88		via6522_device *via = machine().device<via6522_device>("via");
89		via->write(space,offset,data);
	119	m_via->write(space,offset,data);
90	120	}
91	121
92	122	static ADDRESS_MAP_START(jr100_mem, AS_PROGRAM, 8, jr100_state )
r20500	r20501
167	197
168	198	void jr100_state::machine_start()
169	199	{
170		beep_set_frequency(machine().device(BEEPER_TAG),0);
171		beep_set_state(machine().device(BEEPER_TAG),0);
	200	beep_set_frequency(m_beeper,0);
	201	beep_set_state(m_beeper,0);
172	202	}
173	203
174	204	void jr100_state::machine_reset()
r20500	r20501
183	213	{
184	214	int x,y,xi,yi;
185	215
186		UINT8 *rom_pcg = memregion("maincpu")->base() + 0xe000;
	216	UINT8 *rom_pcg = m_region_maincpu->base() + 0xe000;
187	217	for (y = 0; y < 24; y++)
188	218	{
189	219	for (x = 0; x < 32; x++)
r20500	r20501
226	256	GFXDECODE_ENTRY( "maincpu", 0xe000, tiles8x8_layout, 0, 1 )
227	257	GFXDECODE_END
228	258
229		static const char *const keynames[] = {
230		"LINE0", "LINE1", "LINE2", "LINE3", "LINE4", "LINE5", "LINE6", "LINE7",
231		"LINE8", NULL, NULL, NULL, NULL, NULL, NULL, NULL
232		};
233
234
235	259	READ8_MEMBER(jr100_state::jr100_via_read_b)
236	260	{
237	261	UINT8 val = 0x1f;
238		if (keynames[m_keyboard_line]) {
239		val = ioport(keynames[m_keyboard_line])->read();
	262	switch ( m_keyboard_line )
	263	{
	264	case 0: val = m_line0->read(); break;
	265	case 1: val = m_line1->read(); break;
	266	case 2: val = m_line2->read(); break;
	267	case 3: val = m_line3->read(); break;
	268	case 4: val = m_line4->read(); break;
	269	case 5: val = m_line5->read(); break;
	270	case 6: val = m_line6->read(); break;
	271	case 7: val = m_line7->read(); break;
	272	case 8: val = m_line8->read(); break;
240	273	}
241	274	return val;
242	275	}
r20500	r20501
249	282	WRITE8_MEMBER(jr100_state::jr100_via_write_b)
250	283	{
251	284	m_use_pcg = (data & 0x20) ? TRUE : FALSE;
252		m_speaker = data>>7;
	285	m_speaker_data = data>>7;
253	286	}
254	287
255	288	WRITE_LINE_MEMBER(jr100_state::jr100_via_write_cb2)
256	289	{
257		machine().device<cassette_image_device>(CASSETTE_TAG)->output(state ? -1.0 : +1.0);
	290	m_cassette->output(state ? -1.0 : +1.0);
258	291	}
259	292	static const via6522_interface jr100_via_intf =
260	293	{
r20500	r20501
283	316
284	317	TIMER_DEVICE_CALLBACK_MEMBER(jr100_state::sound_tick)
285	318	{
286		device_t *speaker = machine().device(SPEAKER_TAG);
287		speaker_level_w(speaker,m_speaker);
288		m_speaker = 0;
	319	speaker_level_w(m_speaker,m_speaker_data);
	320	m_speaker_data = 0;
289	321
290		via6522_device *via = machine().device<via6522_device>("via");
291		double level = (machine().device<cassette_image_device>(CASSETTE_TAG)->input());
	322	double level = (m_cassette->input());
292	323	if (level > 0.0) {
293		via->write_ca1(0);
294		via->write_cb1(0);
	324	m_via->write_ca1(0);
	325	m_via->write_cb1(0);
295	326	} else {
296		via->write_ca1(1);
297		via->write_cb1(1);
	327	m_via->write_ca1(1);
	328	m_via->write_cb1(1);
298	329	}
299
300
301	330	}
302	331
303	332	static UINT32 readByLittleEndian(UINT8 *buf,int pos)

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