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r7971 Wednesday 5th May, 2010 at 01:10:20 UTC by incog
SCV - Added 2 more dumps to software list. - Audio fix [plgDavid]

[hash]	scv.xml
[src/mess/audio]	upd1771.c

hash/scv.xml

r7970	r7971
136	136	</part>
137	137	</software>
138	138
	139	<software name="kungfurd" supported="no">
	140	<description>Kung Fu Road</description>
	141	<year>1985</year>
	142	<publisher>Epoch</publisher>
	143	<part name="cart" interface="scv_cart">
	144	<dataarea name="rom" size="40960">
	145	<rom name="kungfurd.0" size="32768" crc="9cfc5a67" sha1="1c34470c1f389db7be755e130db298f6b475c7ce" offset="0" />
	146	<rom name="kungfurd.1" size="8192"  crc="a895375a" sha1="644ab7c7fb85d0d80aa3a416b0a5359d395e48a3" offset="8000" />
	147	</dataarea>
	148	</part>
	149	</software>
	150
139	151	<software name="lupin3" supported="no">
140	152	<description>Lupin III</description>
141	153	<year>1984</year>
r7970	r7971
250	262	</part>
251	263	</software>
252	264
	265	<software name="ttball">
	266	<description>Ton Ton Ball</description>
	267	<year>1985</year>
	268	<publisher>Epoch</publisher>
	269	<part name="cart" interface="scv_cart">
	270	<dataarea name="rom" size="16384">
	271	<rom name="ttball.bin" size="16384" crc="7f873bfa" sha1="093235ac2234c4c4e78a2addaab780d7a2cbe004" offset="0" />
	272	</dataarea>
	273	</part>
	274	</software>
	275
253	276	<software name="sansupyu">
254	277	<description>Sansupyuta/Super Professor</description>
255	278	<year>1985</year>

src/mess/audio/upd1771.c

r7970	r7971
24	24	NC           3        26        ACK
25	25	!WR           4        25        D7
26	26	!CS           5        24        D6
27		PCM          6        23        D5
	27	RESET        6        23        D5
28	28	NC           7        22        D4
29	29	VCC          8        21        D3
30	30	6Mhz XIN     9        20        D2
r7970	r7971
37	37	In the SCV:
38	38	pin  5 is tied to the !SCPU pin on the Epoch TV chip pin 29 (0x3600 writes)
39	39	pin  6 is tied to the   PC3 pin of the upD7801 CPU
40		and according to the Enri is used for 1 bit PCM injection.
41	40	pin 26 is tied to the  INT1 pin of the upD7801 (CPU pin 12),
42	41
43	42	1,2,3,28,27 dont generate any digital signals
r7970	r7971
54	53
55	54	All NC pins are unknown, maybe some are  "test" pins.
56	55
57		All non PCM writes are made through adress 0x3600 on the upD7801
	56	All non PCM writes are made through address 0x3600 on the upD7801
58	57	Instead of useing register=value, this chip require sending multiple
59	58	bytes for each command, one after the other.
60	59
r7970	r7971
67	66
68	67	#define LOG 0
69	68
70		#define MAX_PACKET_SIZE 16 //protection/padding max is really 10
	69	#define MAX_PACKET_SIZE 0x8000
71	70
72	71
73
	72	size_t g_count = 0;
74	73	/*
75	74	Each of the 8 waveforms have been sampled at 192Khz using period 0xFF,
76	75	filtered, and each of the 32 levels have been calculated with averages on around 10 samples
r7970	r7971
101	100	devcb_resolved_write_line ack_out_func;
102	101	emu_timer *timer;
103	102
104		UINT8    packet[MAX_PACKET_SIZE];
105		UINT8    index;
106		UINT8    expected_bytes;
	103	UINT8   packet[MAX_PACKET_SIZE];
	104	UINT32  index;
	105	UINT8   expected_bytes;
107	106
108	107	UINT8   state;//0:silence, 1 noise, 2 tone
109		UINT8   pcm;
	108	UINT8   pc3;
110	109
111	110	//tone
112	111	UINT8    t_timbre; //[0;  7]
r7970	r7971
175	174
176	175	devcb_call_write_line( &state->ack_out_func, 0 );
177	176
178		state->packet[state->index++]=data;
	177	if (state->index < MAX_PACKET_SIZE)
	178	state->packet[state->index++]=data;
	179	else{
	180	logerror( "upd1771_w: received byte 0x%02x overload!\n", data );
	181	return;
	182	}
179	183
180	184	switch(state->packet[0]){
181	185
r7970	r7971
187	191	}break;
188	192
189	193	case 1:
	194	{
190	195	if (state->index == 10){
191	196	state->state = STATE_NOISE;
192	197	state->index = 0;
r7970	r7971
204	209	}
205	210	else
206	211	timer_adjust_oneshot( state->timer, ticks_to_attotime( 512, device->clock ), 0 );
207		break;
	212	}break;
208	213
209	214	case 2:
	215	{
210	216	if (state->index == 4){
211	217	//logerror( "upd1771_w: ----------------tone  state reset\n");
212	218	state->t_timbre = (state->packet[1] & 0xE0) >> 5;
r7970	r7971
223	229	else
224	230	timer_adjust_oneshot( state->timer, ticks_to_attotime( 512, device->clock ), 0 );
225	231
226		break;
	232	}break;
227	233
	234	case 0x1F:
	235	{
	236	//6Khz(ish) DIGI playback
	237
	238	//end capture
	239	if (state->packet[state->index-2] == 0xFE &&
	240	state->packet[state->index-1] == 0x00){
	241	//TODO play capture!
	242	state->index = 0;
	243	state->packet[0]=0;
	244	}
	245	else
	246	timer_adjust_oneshot( state->timer, ticks_to_attotime( 512, device->clock ), 0 );
	247
	248	}break;
	249
228	250	//garbage: wipe stack
229		default:
230		state->index = 0;
	251	default:
	252	state->index = 0;
231	253	break;
232	254	}
233	255	}
r7970	r7971
237	259	{
238	260	upd1771_state *upd1771 = get_safe_token( device );
239	261
240		logerror( "upd1771_pcm_w: state = %d\n", state );
241		upd1771->pcm = state ? 1 : 0;
	262	//RESET upon HIGH
	263	if (state != upd1771->pc3){
	264	logerror( "upd1771_pc3 change!: state = %d\n", state );
	265	upd1771->index = 0;
	266	upd1771->packet[0]=0;
	267	}
	268
	269	upd1771->pc3 = state;
242	270	}
243	271
244	272
r7970	r7971
341	369
342	370	state->index = 0;
343	371	state->expected_bytes = 0;
344		state->pcm = 0;
	372	state->pc3 = 0;
345	373	}
346	374
347	375

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