summaryrefslogtreecommitdiffstatshomepage
path: root/src/mame/drivers/gunpey.c
blob: 0916b8e05725ef7f2693e3ff79df1f256970cac5 (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
/*
Gunpey
Banpresto, 2000

The hardware looks very Raizing/8ing -ish, especially the ROM stickers and PCB silk-screening
which are identical to those on Brave Blade and Battle Bakraid ;-)

PCB Layout
----------

VG-10
|-------------------------------------|
|        M6295  ROM5                  |
|        YMZ280B-F      ROM4   ROM3   |
|  YAC516      16.93MHz               |
|                       61256  ROM1   |
|                       61256  ROM2   |
|J                                    |
|A             PAL       XILINX       |
|M                       XC95108      |
|M             57.2424MHz             |
|A                            V30     |
|                                     |
|              |-------|              |
|              |AXELL  |              |
|       DSW1   |AG-1   |              |
|       DSW2   |AX51101|  T2316162    |
|              |-------|  T2316162    |
|-------------------------------------|

Notes:
      V30 clock: 14.3106MHz (= 57.2424 / 4)
      YMZ280B clock: 16.93MHz
      OKI M6295 clock: 2.11625MHz (= 16.93 / 8), sample rate = clock / 165
      VSync: 60Hz
      HSync: 15.79kHz

      ROMs:
           GP_ROM1.021 \
           GP_ROM2.022 / 27C040, Main program

           GP_ROM3.025 \
           GP_ROM4.525 / SOP44 32M MASK, Graphics

           GP_ROM5.622   SOP44 32M MASK, OKI samples
*/

#include "driver.h"
#include "cpu/nec/necintrf.h"

static UINT16 *unkram;
static UINT16 *mainram;

static VIDEO_START( gunpey )
{
}

static VIDEO_UPDATE( gunpey )
{

	return 0;
}

static WRITE16_HANDLER(unk_w)
{
	COMBINE_DATA(&unkram[offset]);
}


static READ16_HANDLER(unk_r)
{
	// c9 = status ? //40 10 04=start ?
	// 40,41,44 = ?
	// 4a = flags?
		if(offset==0xc9/2 )//|| offset==0x40 || offset==0x41 || offset==0x44)
			return mame_rand(space->machine);
	return unkram[offset];
}


static WRITE16_HANDLER(main_w)
{
	COMBINE_DATA(&mainram[offset]);
}


static READ16_HANDLER(main_r)
{
	if(offset>0x502d/2 && offset<0x56c0/2)
		logerror("R %x @%x\n",offset*2,cpu_get_pc(space->cpu));
	return mainram[offset];
}


/***************************************************************************************/

static ADDRESS_MAP_START( mem_map, ADDRESS_SPACE_PROGRAM, 16 )
	AM_RANGE(0x00000, 0x0ffff) AM_READWRITE(main_r, main_w) AM_BASE(&mainram)
	AM_RANGE(0x50000, 0x500ff) AM_RAM AM_BASE(&unkram)
	AM_RANGE(0x50100, 0x502ff) AM_NOP
	AM_RANGE(0x80000, 0xfffff) AM_ROM
ADDRESS_MAP_END

static ADDRESS_MAP_START( io_map, ADDRESS_SPACE_IO, 16 )
	AM_RANGE(0x7f00, 0x7fff) AM_READWRITE(unk_r, unk_w)
ADDRESS_MAP_END


/***************************************************************************************/



/***************************************************************************************/

static INTERRUPT_GEN( gunpey_interrupt )
{
	cpu_set_input_line_and_vector(device,0,HOLD_LINE,0x200/4);
}

/***************************************************************************************/
static MACHINE_DRIVER_START( gunpey )

	/* basic machine hardware */
	MDRV_CPU_ADD("main", V30, 57242400 / 4)
	MDRV_CPU_PROGRAM_MAP(mem_map,0)
	MDRV_CPU_IO_MAP(io_map,0)
	MDRV_CPU_VBLANK_INT("main", gunpey_interrupt)

	/* video hardware */
	MDRV_SCREEN_ADD("main", RASTER)
	MDRV_SCREEN_REFRESH_RATE(60)
	MDRV_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
	MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
	MDRV_SCREEN_SIZE(32*8, 32*8)
	MDRV_SCREEN_VISIBLE_AREA(0*8, 32*8-1, 0*8, 32*8-1)

	MDRV_PALETTE_LENGTH(0x800)

	MDRV_VIDEO_START(gunpey)
	MDRV_VIDEO_UPDATE(gunpey)

MACHINE_DRIVER_END

/***************************************************************************************/

static INPUT_PORTS_START( gunpey )

INPUT_PORTS_END


/***************************************************************************************/


ROM_START( gunpey )
	ROM_REGION( 0x100000, "main", 0 ) /* V30 code */
	ROM_LOAD16_BYTE( "gp_rom1.021",  0x00000, 0x80000, CRC(07a589a7) SHA1(06c4140ffd5f74b3d3ddfc424f43fcd08d903490) )
	ROM_LOAD16_BYTE( "gp_rom2.022",  0x00001, 0x80000, CRC(f66bc4cf) SHA1(54931d878d228c535b9e2bf22a0a3e41756f0fe5) )

	ROM_REGION( 0x400000*2, "gfx1", 0 )
	ROM_LOAD( "gp_rom3.025",  0x00000, 0x400000,  CRC(f2d1f9f0) SHA1(0d20301fd33892074508b9d127456eae80cc3a1c) )
	ROM_LOAD( "gp_rom4.525",  0x400000, 0x400000, CRC(78dd1521) SHA1(91d2046c60e3db348f29f776def02e3ef889f2c1) )


	ROM_REGION( 0x400000, "unknown", 0 )
	ROM_LOAD( "gp_rom5.622",  0x00000, 0x400000,  CRC(f79903e0) SHA1(4fd50b4138e64a48ec1504eb8cd172a229e0e965))

ROM_END

GAME( 2000, gunpey, 0, gunpey, gunpey, 0,	ROT0, "Banpresto", "Gunpey",GAME_NO_SOUND|GAME_NOT_WORKING)