MESS SVN History

15994 Revisions

r5877 Thursday 24th September, 2009 at 11:36:55 UTC by Miodrag Milanović
[4004CLK] Added save state

[src/mess/drivers]

4004clk.c

src/mess/drivers/4004clk.c
r5876	r5877
11	11	#include "sound/dac.h"
12	12	#include "4004clk.lh"
13	13
14		static UINT16 nixie[6];
15		static UINT16 nixie_temp[16];
	14	typedef struct __4004clk_state _4004clk_state;
	15	struct __4004clk_state
	16	{
	17	UINT16 nixie[16];
	18	UINT8 timer;
	19	const device_config *dac;
	20	};
16	21
17	22	static READ8_HANDLER(data_r)
18	23	{
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44	49	output_set_indexed_value("neon", index, value);
45	50	}
46	51
47		static void update_nixie(void)
	52	static void update_nixie(running_machine *machine)
48	53	{
49		nixie[0] = ((nixie_temp[2] & 3)<<8) \| (nixie_temp[1] << 4) \| nixie_temp[0];
50		nixie[1] = (nixie_temp[4] << 6) \| (nixie_temp[3] << 2) \| (nixie_temp[2] >>2);
51		nixie[2] = ((nixie_temp[7] & 3)<<8) \| (nixie_temp[6] << 4) \| nixie_temp[5];
52		nixie[3] = (nixie_temp[9] << 6) \| (nixie_temp[8] << 2) \| (nixie_temp[7] >>2);
53		nixie[4] = ((nixie_temp[12] & 3)<<8) \| (nixie_temp[11] << 4) \| nixie_temp[10];
54		nixie[5] = (nixie_temp[14] << 6) \| (nixie_temp[13] << 2) \| (nixie_temp[12] >>2);
55
56		output_set_nixie_value(0,nixie_to_num(nixie[5]));
57		output_set_nixie_value(1,nixie_to_num(nixie[4]));
58		output_set_nixie_value(2,nixie_to_num(nixie[3]));
59		output_set_nixie_value(3,nixie_to_num(nixie[2]));
60		output_set_nixie_value(4,nixie_to_num(nixie[1]));
61		output_set_nixie_value(5,nixie_to_num(nixie[0]));
	54	_4004clk_state *state = machine->driver_data;
	55
	56	output_set_nixie_value(5,nixie_to_num(((state->nixie[2] & 3)<<8) \| (state->nixie[1] << 4) \| state->nixie[0]));
	57	output_set_nixie_value(4,nixie_to_num((state->nixie[4] << 6) \| (state->nixie[3] << 2) \| (state->nixie[2] >>2)));
	58	output_set_nixie_value(3,nixie_to_num(((state->nixie[7] & 3)<<8) \| (state->nixie[6] << 4) \| state->nixie[5]));
	59	output_set_nixie_value(2,nixie_to_num((state->nixie[9] << 6) \| (state->nixie[8] << 2) \| (state->nixie[7] >>2)));
	60	output_set_nixie_value(1,nixie_to_num(((state->nixie[12] & 3)<<8) \| (state->nixie[11] << 4) \| state->nixie[10]));
	61	output_set_nixie_value(0,nixie_to_num((state->nixie[14] << 6) \| (state->nixie[13] << 2) \| (state->nixie[12] >>2)));
62	62	}
63	63
64	64	static WRITE8_HANDLER(nixie_w)
65	65	{
66		nixie_temp[offset] = data;
67		update_nixie();
	66	_4004clk_state *state = space->machine->driver_data;
	67	state->nixie[offset] = data;
	68	update_nixie(space->machine);
68	69	}
69	70
70	71	static WRITE8_HANDLER(neon_w)
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76	77	}
77	78
78	79	static WRITE8_HANDLER(relays_w)
79		{
80		const device_config *dac_device = devtag_get_device(space->machine, "dac");
81		dac_data_w(dac_device, (data & 1) ? 0x80 : 0x40); //tick - tock
	80	{
	81	_4004clk_state *state = space->machine->driver_data;
	82	dac_data_w(state->dac, (data & 1) ? 0x80 : 0x40); //tick - tock
82	83	}
83	84
84	85	static ADDRESS_MAP_START(4004clk_rom, ADDRESS_SPACE_PROGRAM, 8)
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111	112	PORT_CONFSETTING( 0x08, "60 Hz" )
112	113	INPUT_PORTS_END
113	114
114		static UINT8 timer = 0;
115
116	115	/*
117	116	16ms Int generator
118	117	__ __
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123	122
124	123	static TIMER_CALLBACK(timer_callback)
125	124	{
126		i4004_set_test(cputag_get_cpu(machine, "maincpu"),timer);
127		timer^=1;
	125	_4004clk_state *state = machine->driver_data;
	126	i4004_set_test(cputag_get_cpu(machine, "maincpu"),state->timer);
	127	state->timer^=1;
128	128	}
129	129
130		static MACHINE_RESET(4004clk)
	130	static MACHINE_START(4004clk)
131	131	{
132		timer = 0;
	132	_4004clk_state *state = machine->driver_data;
	133	state->timer = 0;
	134	state->dac = devtag_get_device(machine, "dac");
	135
133	136	timer_pulse(machine, ATTOTIME_IN_HZ(120), NULL, 0, timer_callback);
	137
	138	/* register for state saving */
	139	state_save_register_global(machine, state->timer);
	140	state_save_register_global_pointer(machine, state->nixie, 6);
134	141	}
135	142
136	143	static MACHINE_DRIVER_START( 4004clk )
	144	MDRV_DRIVER_DATA(_4004clk_state)
137	145	/* basic machine hardware */
138	146	MDRV_CPU_ADD("maincpu",I4004, XTAL_5MHz / 8)
139	147	MDRV_CPU_PROGRAM_MAP(4004clk_rom)
140	148	MDRV_CPU_DATA_MAP(4004clk_mem)
141	149	MDRV_CPU_IO_MAP(4004clk_io)
142	150
143		MDRV_MACHINE_RESET(4004clk)
	151	MDRV_MACHINE_START(4004clk)
144	152
145	153	/* video hardware */
146	154	MDRV_DEFAULT_LAYOUT(layout_4004clk)
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175	183	/* Driver */
176	184
177	185	/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT CONFIG COMPANY FULLNAME FLAGS */
178		COMP( 2008, 4004clk, 0, 0, 4004clk, 4004clk, 0, 0, "John L. Weinrich", "4004 Nixie Clock", 0)
	186	COMP( 2008, 4004clk, 0, 0, 4004clk, 4004clk, 0, 0, "John L. Weinrich", "4004 Nixie Clock", GAME_SUPPORTS_SAVE)
179	187

15994 Revisions