summaryrefslogtreecommitdiffstatshomepage
path: root/src/mame/drivers/hotblock.c
blob: 3ca8165d8ffd0eb694f8eb276039bcf25950cf74 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
/* Hot Blocks */
/*
driver by David Haywood
*/

/*
HotBlock board

Tetris with naughty bits

        ||||||||||||||||
+-------++++++++++++++++-------+
|                              |
|  YM2149 TESTSW               |
|                              |
|    62256 62256   6116 6116   |
|                              |
|    24mhz  TPC1020AFN 24c04a  |
|                              |
|                     PAL      |
| P8088-1 IC4 IC5 62256 62256  |
|                              |
+------------------------------+

330ohm resistor packs for colours


--

there are a variety of test modes which can be obtained
by resetting while holding down player 2 buttons

eeprom / backup data not hooked up ( 24c04a on port4 )

most sources say this is a game by Nics but I believe Nics
to be a company from Korea, this game is quite clearly a
Spanish game, we know for a fact that NIX are from Spain
so it could be by them instead



*/

#include "emu.h"
#include "cpu/i86/i86.h"
#include "sound/ay8910.h"

class hotblock_state : public driver_device
{
public:
	hotblock_state(const machine_config &mconfig, device_type type, const char *tag)
		: driver_device(mconfig, type, tag) { }

	/* memory pointers */
	UINT8 *  m_vram;

	/* misc */
	int      m_port0;
	int      m_port4;

	/* memory */
	UINT8    m_pal[0x10000];
};



static READ8_HANDLER( hotblock_video_read )
{
	hotblock_state *state = space->machine().driver_data<hotblock_state>();
	/* right?, anything else?? */
	if (state->m_port0 & 0x20) // port 0 = a8 e8 -- palette
	{
		return state->m_pal[offset];
	}
	else // port 0 = 88 c8
	{
		return state->m_vram[offset];
	}
}

/* port 4 is some kind of eeprom / storage .. used to store the scores */
static READ8_HANDLER( hotblock_port4_r )
{
//  mame_printf_debug("port4_r\n");
	return 0x00;
}


static WRITE8_HANDLER( hotblock_port4_w )
{
//  mame_printf_debug("port4_w: pc = %06x : data %04x\n", cpu_get_pc(&space->device()), data);
//  popmessage("port4_w: pc = %06x : data %04x", cpu_get_pc(&space->device()), data);
	hotblock_state *state = space->machine().driver_data<hotblock_state>();
	state->m_port4 = data;
}



static WRITE8_HANDLER( hotblock_port0_w )
{
//  popmessage("port4_w: pc = %06x : data %04x", cpu_get_pc(&space->device()), data);
	hotblock_state *state = space->machine().driver_data<hotblock_state>();
	state->m_port0 = data;
}

static WRITE8_HANDLER( hotblock_video_write )
{
	hotblock_state *state = space->machine().driver_data<hotblock_state>();
	/* right?, anything else?? */
	if (state->m_port0 & 0x20) // port 0 = a8 e8 -- palette
	{
		state->m_pal[offset] = data;
	}
	else // port 0 = 88 c8
	{
		state->m_vram[offset] = data;
	}
}

static ADDRESS_MAP_START( hotblock_map, AS_PROGRAM, 8 )
	AM_RANGE(0x00000, 0x0ffff) AM_RAM
	AM_RANGE(0x10000, 0x1ffff) AM_READWRITE(hotblock_video_read, hotblock_video_write) AM_BASE_MEMBER(hotblock_state, m_vram)
	AM_RANGE(0x20000, 0xfffff) AM_ROM
ADDRESS_MAP_END

static ADDRESS_MAP_START( hotblock_io, AS_IO, 8 )
	AM_RANGE(0x0000, 0x0000) AM_WRITE(hotblock_port0_w)
	AM_RANGE(0x0004, 0x0004) AM_READWRITE(hotblock_port4_r, hotblock_port4_w)
	AM_RANGE(0x8000, 0x8001) AM_DEVWRITE("aysnd", ay8910_address_data_w)
	AM_RANGE(0x8001, 0x8001) AM_DEVREAD("aysnd", ay8910_r)
ADDRESS_MAP_END



static VIDEO_START(hotblock)
{
	hotblock_state *state = machine.driver_data<hotblock_state>();
	state->save_item(NAME(state->m_pal));
}

static SCREEN_UPDATE(hotblock)
{
	hotblock_state *state = screen->machine().driver_data<hotblock_state>();
	int y, x, count;
	int i;
	static const int xxx = 320, yyy = 204;

	bitmap_fill(bitmap, 0, get_black_pen(screen->machine()));

	for (i = 0; i < 256; i++)
	{
		int dat = (state->m_pal[i * 2 + 1] << 8) | state->m_pal[i * 2];
		palette_set_color_rgb(screen->machine(), i, pal5bit(dat >> 0), pal5bit(dat >> 5), pal5bit(dat >> 10));
	}

	count = 0;
	for (y = 0; y < yyy; y++)
	{
		for(x = 0; x < xxx; x++)
		{
			if (state->m_port0 & 0x40)
				*BITMAP_ADDR16(bitmap, y, x) = state->m_vram[count];
			count++;
		}
	}

	return 0;
}


static INPUT_PORTS_START( hotblock )
	PORT_START("P1")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN1 )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_START1 )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_PLAYER(1) PORT_8WAY
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_PLAYER(1) PORT_8WAY
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_PLAYER(1) PORT_8WAY
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_PLAYER(1) PORT_8WAY
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(1)
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(1) // unused?

	PORT_START("P2")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN2 )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_START2 )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_PLAYER(2) PORT_8WAY
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_PLAYER(2) PORT_8WAY
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_PLAYER(2) PORT_8WAY
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_PLAYER(2) PORT_8WAY
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2)
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(2) // used to get test mode
INPUT_PORTS_END


static INTERRUPT_GEN( hotblocks_irq ) /* right? */
{
	device_set_input_line(device, INPUT_LINE_NMI, PULSE_LINE);
}

static const ay8910_interface ay8910_config =
{
	AY8910_LEGACY_OUTPUT,
	AY8910_DEFAULT_LOADS,
	DEVCB_INPUT_PORT("P1"),
	DEVCB_INPUT_PORT("P2"),
	DEVCB_NULL,
	DEVCB_NULL
};


static MACHINE_CONFIG_START( hotblock, hotblock_state )

	/* basic machine hardware */
	MCFG_CPU_ADD("maincpu", I8088, 10000000)
	MCFG_CPU_PROGRAM_MAP(hotblock_map)
	MCFG_CPU_IO_MAP(hotblock_io)
	MCFG_CPU_VBLANK_INT("screen", hotblocks_irq)

	/* video hardware */
	MCFG_SCREEN_ADD("screen", RASTER)
	MCFG_SCREEN_REFRESH_RATE(60)
	MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
	MCFG_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
	MCFG_SCREEN_SIZE(1024,1024)
	MCFG_SCREEN_VISIBLE_AREA(0, 320-1, 0, 200-1)
	MCFG_SCREEN_UPDATE(hotblock)

	MCFG_PALETTE_LENGTH(256)

	MCFG_VIDEO_START(hotblock)

	/* sound hardware */
	MCFG_SPEAKER_STANDARD_MONO("mono")

	MCFG_SOUND_ADD("aysnd", AY8910, 1000000)
	MCFG_SOUND_CONFIG(ay8910_config)
	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
MACHINE_CONFIG_END

ROM_START( hotblock )
	ROM_REGION( 0x100000, "maincpu", 0 )
	ROM_LOAD( "hotblk5.ic4", 0x000000, 0x080000, CRC(5f90f776) SHA1(5ca74714a7d264b4fafaad07dc11e57308828d30) )
	ROM_LOAD( "hotblk6.ic5", 0x080000, 0x080000, CRC(3176d231) SHA1(ac22fd0e9820c6714f51a3d8315eb5d43ef91eeb) )
ROM_END

GAME( 1993, hotblock, 0,        hotblock, hotblock, 0, ROT0,  "NIX?", "Hot Blocks - Tetrix II", 0 )