MESS SVN History

15994 Revisions

r5271 Saturday 18th July, 2009 at 10:04:20 UTC by Miodrag Milanović
[MZ80][MZ700] Sound works now

src/mess/machine/mz700.c
r5270	r5271
408	408	/********************** PIT **********************************************/
409	409
410	410	/* Timer 0 is the clock for the speaker output */
	411	static UINT8 speaker_level = 0;
	412	static UINT8 prev_state = 0;
	413
411	414	static PIT8253_OUTPUT_CHANGED( pit_out0_changed )
412	415	{
413	416	const device_config *speaker = devtag_get_device(device->machine, "speaker");
414		speaker_level_w(speaker, state ? 1 : 0);
	417	if((prev_state==0) && (state==1)) {
	418	speaker_level ^= 1;
	419	}
	420	prev_state = state;
	421	speaker_level_w( speaker, speaker_level);
415	422	}
416	423
417	424

src/mess/machine/mz80.c
r5270	r5271
13	13	#include "sound/speaker.h"
14	14	#include "includes/mz80.h"
15	15
16		~~static~~ UINT8 mz80k_tempo_strobe = 0;
	16	UINT8 mz80k_tempo_strobe = 0;
17	17	static UINT8 mz80k_8255_portc = 0;
18	18	UINT8 mz80k_vertical = 0;
19	19	UINT8 mz80k_cursor_cnt = 0;
r5270	r5271
25	25	{
26	26	}
27	27
28
29	28	MACHINE_RESET( mz80k )
30	29	{
31	30	mz80k_tempo_strobe = 0;
r5270	r5271
69	68	// logerror("mz80k_8255_portc_w %02x\n",data);
70	69	}
71	70
	71	static UINT8 speaker_level = 0;
	72	static UINT8 prev_state = 0;
72	73	static PIT8253_OUTPUT_CHANGED( pit_out0_changed )
73	74	{
74	75	const device_config *speaker = devtag_get_device(device->machine, "speaker");
75		speaker_level_w( speaker, state ? 1 : 0 );
	76	if((prev_state==0) && (state==1)) {
	77	speaker_level ^= 1;
	78	}
	79	prev_state = state;
	80	speaker_level_w( speaker, speaker_level);
76	81	}
77	82
78	83
r5270	r5271
100	105	const struct pit8253_config mz80k_pit8253_config =
101	106	{
102	107	{
103		/* clockin irq callback */
104		{ 1108800.0, pit_out0_changed },
105		{ 15611.0, pit_out1_changed },
106		{ 0, pit_out2_changed },
	108	/* clockin irq callback */
	109	{ XTAL_8MHz/ 4, pit_out0_changed },
	110	{ XTAL_8MHz/256, pit_out1_changed },
	111	{ 0, pit_out2_changed },
107	112	}
108	113	};
109	114
110	115	READ8_HANDLER(mz80k_strobe_r)
111	116	{
112		mz80k_tempo_strobe^=1;
113	117	return(0x7e \| mz80k_tempo_strobe);
114	118	}
115	119	WRITE8_HANDLER(mz80k_strobe_w)
116	120	{
	121	const device_config *pit = devtag_get_device(space->machine, "pit8253");
	122	pit8253_gate_w(pit,0,data);
117	123	}
118	124

src/mess/drivers/mz80.c
r5270	r5271
231	231	AM_RANGE(0xd000, 0xd3ff) AM_RAM // Video RAM
232	232	AM_RANGE(0xe000, 0xe003) AM_DEVREADWRITE("ppi8255", i8255a_r, i8255a_w) /* PPIA 8255 */
233	233	AM_RANGE(0xe004, 0xe007) AM_DEVREADWRITE("pit8253", pit8253_r,pit8253_w) /* PIT 8253 */
234		AM_RANGE(0xe008, 0xe008) AM_READWRITE( mz80k_strobe_r, mz80k_strobe_w)
	234	AM_RANGE(0xe008, 0xe00b) AM_READWRITE( mz80k_strobe_r, mz80k_strobe_w)
235	235	AM_RANGE(0xf000, 0xf3ff) AM_ROM
236	236	ADDRESS_MAP_END
237	237
r5270	r5271
255	255	CASSETTE_STOPPED \| CASSETTE_MOTOR_ENABLED \| CASSETTE_SPEAKER_ENABLED
256	256	};
257	257
	258	static TIMER_DEVICE_CALLBACK( ne555_tempo_callback )
	259	{
	260	mz80k_tempo_strobe ^= 1;
	261	}
	262
258	263	static MACHINE_DRIVER_START( mz80k )
259	264	/* basic machine hardware */
260	265
261	266	/* main CPU */
262		MDRV_CPU_ADD("maincpu", Z80, ~~2000000~~) /* 2 MHz */
	267	MDRV_CPU_ADD("maincpu", Z80, XTAL_8MHz / 4) /* 2 MHz */
263	268	MDRV_CPU_PROGRAM_MAP(mz80k_mem)
264	269	MDRV_CPU_IO_MAP(mz80k_io)
265	270
r5270	r5271
289	294	MDRV_SOUND_ADD("speaker", SPEAKER, 0)
290	295	MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
291	296
	297	MDRV_TIMER_ADD_PERIODIC("tempo", ne555_tempo_callback, HZ(24)) // 33.5Hz - 34.3Hz
	298
292	299	MDRV_CASSETTE_ADD( "cassette", mz80k_cassette_config )
293	300	MACHINE_DRIVER_END
294	301

docs/messnew.txt
r5270	r5271
72	72
73	73	- [MC1000] System is now basically working. [Curt Coder]
74	74
	75	- [MZ80] [MZ700] Sound works now [Miodrag Milanovic]
	76
75	77	- [NES] Fixed mappers #88, #193, added mappers #107, #154. [Heretical One]
76	78
77	79	- [PC] Renamed bondwell to bw230. [Curt Coder]

15994 Revisions