1 // license:BSD-3-Clause
2 // copyright-holders:Brad Oliver
3 /*********************************************************************************
4
5 Zero Zone memory map
6
7 driver by Brad Oliver
8
9 CPU 1 : 68000, uses irq 1
10
11 0x000000 - 0x01ffff : ROM
12 0x080000 - 0x08000f : input ports and dipswitches
13 0x088000 - 0x0881ff : palette RAM, 256 total colors
14 0x09ce00 - 0x09d9ff : video ram, 48x32
15 0x0c0000 - 0x0cffff : RAM
16 0x0f8000 - 0x0f87ff : RAM (unused?)
17
18 Stephh's notes :
19
20 IMO, the game only has 2 buttons (1 to rotate the pieces and 1 for help).
21 The 3rd button (when the Dip Switch is activated) subs one "line"
22 (0x0c0966 for player 1 and 0x0c1082 for player 2) each time it is pressed.
23 As I don't see why such thing would REALLY exist, I've added the
24 IPF_CHEAT flag for the Dip Switch and the 3rd button of each player.
25
26 TODO:
27 * adpcm samples don't seem to be playing at the proper tempo - too fast?
28
29
30 *********************************************************************************/
31
32
33 #include "emu.h"
34 #include "includes/zerozone.h"
35
36 #include "cpu/m68000/m68000.h"
37 #include "sound/okim6295.h"
38 #include "emupal.h"
39 #include "screen.h"
40 #include "speaker.h"
41
42
sound_w(uint8_t data)43 void zerozone_state::sound_w(uint8_t data)
44 {
45 m_soundlatch->write(data);
46 m_audiocpu->set_input_line_and_vector(0, HOLD_LINE, 0xff); // Z80
47 }
48
49
main_map(address_map & map)50 void zerozone_state::main_map(address_map &map)
51 {
52 map(0x000000, 0x01ffff).rom();
53 map(0x080000, 0x080001).portr("SYSTEM");
54 map(0x080002, 0x080003).portr("INPUTS");
55 map(0x080008, 0x080009).portr("DSWB");
56 map(0x08000a, 0x08000b).portr("DSWA");
57 map(0x084000, 0x084000).w(FUNC(zerozone_state::sound_w));
58 map(0x088000, 0x0881ff).ram().w("palette", FUNC(palette_device::write16)).share("palette");
59 map(0x098000, 0x098001).ram(); // Watchdog?
60 map(0x09ce00, 0x09ffff).ram().w(FUNC(zerozone_state::tilemap_w)).share(m_vram);
61 map(0x0b4001, 0x0b4001).w(FUNC(zerozone_state::tilebank_w));
62 map(0x0c0000, 0x0cffff).ram();
63 map(0x0f8000, 0x0f87ff).ram(); // Never read from
64 }
65
sound_map(address_map & map)66 void zerozone_state::sound_map(address_map &map)
67 {
68 map(0x0000, 0x7fff).rom();
69 map(0x8000, 0x87ff).ram();
70 map(0x9800, 0x9800).rw("oki", FUNC(okim6295_device::read), FUNC(okim6295_device::write));
71 map(0xa000, 0xa000).r(m_soundlatch, FUNC(generic_latch_8_device::read));
72 }
73
74
75 static INPUT_PORTS_START( zerozone )
76 PORT_START("SYSTEM")
77 PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_COIN1 )
78 PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_COIN2 )
79 PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_UNKNOWN )
80 PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_START1 )
81 PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_START2 )
82 PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_UNKNOWN )
83 PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_UNKNOWN )
84 PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_UNKNOWN )
85
86 PORT_START("INPUTS")
87 PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_4WAY PORT_PLAYER(1)
88 PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_4WAY PORT_PLAYER(1)
89 PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_4WAY PORT_PLAYER(1)
90 PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_4WAY PORT_PLAYER(1)
91 PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(1)
92 PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(1)
93 PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_PLAYER(1) PORT_NAME("P1 Score Line (Cheat)")
94 PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_UNKNOWN )
95 PORT_BIT( 0x0100, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_4WAY PORT_PLAYER(2)
96 PORT_BIT( 0x0200, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_4WAY PORT_PLAYER(2)
97 PORT_BIT( 0x0400, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_4WAY PORT_PLAYER(2)
98 PORT_BIT( 0x0800, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_4WAY PORT_PLAYER(2)
99 PORT_BIT( 0x1000, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2)
100 PORT_BIT( 0x2000, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(2)
101 PORT_BIT( 0x4000, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_PLAYER(2) PORT_NAME("P2 Score Line (Cheat)")
102 PORT_BIT( 0x8000, IP_ACTIVE_LOW, IPT_UNKNOWN )
103
104 PORT_START("DSWA")
105 PORT_DIPNAME( 0x0007, 0x0007, DEF_STR( Coinage ) )
106 PORT_DIPSETTING( 0x0000, DEF_STR( 5C_1C ) )
107 PORT_DIPSETTING( 0x0001, DEF_STR( 4C_1C ) )
108 PORT_DIPSETTING( 0x0002, DEF_STR( 3C_1C ) )
109 PORT_DIPSETTING( 0x0003, DEF_STR( 2C_1C ) )
110 PORT_DIPSETTING( 0x0007, DEF_STR( 1C_1C ) )
111 PORT_DIPSETTING( 0x0006, DEF_STR( 1C_2C ) )
112 PORT_DIPSETTING( 0x0005, DEF_STR( 1C_3C ) )
113 PORT_DIPSETTING( 0x0004, DEF_STR( 1C_4C ) )
114 PORT_DIPNAME( 0x0008, 0x0008, DEF_STR( Difficulty ) )
115 PORT_DIPSETTING( 0x0008, "In Game Default" ) // 130, 162 or 255 "lines"
116 PORT_DIPSETTING( 0x0000, "Always Hard" ) // 255 "lines"
117 PORT_DIPNAME( 0x0010, 0x0010, "Speed" )
118 PORT_DIPSETTING( 0x0010, DEF_STR( Normal ) ) // Drop every 20 frames
119 PORT_DIPSETTING( 0x0000, "Fast" ) // Drop every 18 frames
120 PORT_DIPNAME( 0x0020, 0x0020, DEF_STR( Demo_Sounds ) )
121 PORT_DIPSETTING( 0x0000, DEF_STR( Off ) )
122 PORT_DIPSETTING( 0x0020, DEF_STR( On ) )
123 PORT_DIPUNUSED( 0x0040, IP_ACTIVE_LOW )
124 PORT_DIPUNUSED( 0x0080, IP_ACTIVE_LOW )
125
126 PORT_START("DSWB")
127 PORT_DIPUNUSED( 0x0100, IP_ACTIVE_LOW )
128 PORT_DIPUNUSED( 0x0200, IP_ACTIVE_LOW )
129 PORT_DIPNAME( 0x0400, 0x0400, "Helps" )
130 PORT_DIPSETTING( 0x0400, "1" )
131 PORT_DIPSETTING( 0x0000, "2" )
132 PORT_DIPNAME( 0x0800, 0x0800, "Bonus Help" )
133 PORT_DIPSETTING( 0x0000, "30000" )
134 PORT_DIPSETTING( 0x0800, DEF_STR( None ) )
135 PORT_DIPNAME( 0x1000, 0x1000, "Activate 'Score Line'? (Cheat)")
136 PORT_DIPSETTING( 0x1000, DEF_STR( No ) )
137 PORT_DIPSETTING( 0x0000, DEF_STR( Yes ) )
138 PORT_DIPUNUSED( 0x2000, IP_ACTIVE_LOW )
139 PORT_DIPUNUSED( 0x4000, IP_ACTIVE_LOW )
140 PORT_SERVICE( 0x8000, IP_ACTIVE_LOW )
141 INPUT_PORTS_END
142
143
144 static const gfx_layout charlayout =
145 {
146 8,8, // 8*8 characters
147 RGN_FRAC(1,1), // 4096 characters
148 4, // 4 bits per pixel
149 { 0, 1, 2, 3 },
150 { 0, 4, 8+0, 8+4, 16+0, 16+4, 24+0, 24+4 },
151 { 0*32, 1*32, 2*32, 3*32, 4*32, 5*32, 6*32, 7*32 },
152 32*8 // every sprite takes 32 consecutive bytes
153 };
154
155
156 static GFXDECODE_START( gfx_zerozone )
157 GFXDECODE_ENTRY( "gfx1", 0, charlayout, 0, 256 ) // sprites & playfield
158 GFXDECODE_END
159
160
machine_start()161 void zerozone_state::machine_start()
162 {
163 save_item(NAME(m_tilebank));
164 }
165
machine_reset()166 void zerozone_state::machine_reset()
167 {
168 m_tilebank = 0;
169 }
170
WRITE_LINE_MEMBER(zerozone_state::vblank_w)171 WRITE_LINE_MEMBER(zerozone_state::vblank_w)
172 {
173 // TODO: Not accurate, find vblank acknowledge
174 if (state)
175 m_maincpu->set_input_line(1, HOLD_LINE);
176 }
177
zerozone(machine_config & config)178 void zerozone_state::zerozone(machine_config &config)
179 {
180 // basic machine hardware
181 M68000(config, m_maincpu, 10_MHz_XTAL);
182 m_maincpu->set_addrmap(AS_PROGRAM, &zerozone_state::main_map);
183
184 Z80(config, m_audiocpu, 16_MHz_XTAL / 16); // divisor not verified, 1 MHz ???
185 m_audiocpu->set_addrmap(AS_PROGRAM, &zerozone_state::sound_map);
186
187 config.set_maximum_quantum(attotime::from_hz(600));
188
189 // video hardware
190 screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
191 screen.set_refresh_hz(60);
192 screen.set_vblank_time(ATTOSECONDS_IN_USEC(0));
193 screen.set_size(64*8, 32*8);
194 screen.set_visarea(1*8, 47*8-1, 2*8, 30*8-1);
195 screen.set_palette("palette");
196 screen.set_screen_update(FUNC(zerozone_state::screen_update));
197 screen.screen_vblank().set(FUNC(zerozone_state::vblank_w));
198
199 GFXDECODE(config, m_gfxdecode, "palette", gfx_zerozone);
200
201 PALETTE(config, "palette").set_format(palette_device::RRRRGGGGBBBBRGBx, 256);
202
203 // sound hardware
204 SPEAKER(config, "mono").front_center();
205
206 GENERIC_LATCH_8(config, m_soundlatch);
207
208 okim6295_device &oki(OKIM6295(config, "oki", 1056000, okim6295_device::PIN7_HIGH)); // clock frequency & pin 7 not verified
209 oki.add_route(ALL_OUTPUTS, "mono", 1.0);
210 }
211
212
213
214 /***************************************************************************
215
216 Game driver(s)
217
218 ***************************************************************************/
219
220 ROM_START( zerozone ) // PCB 'COMAD MADE IN KOREA 93 EDIT00', sticker 'COMAD-078'
221 ROM_REGION( 0x20000, "maincpu", 0 ) // 128k for 68000 code
222 ROM_LOAD16_BYTE( "zz-4.rom", 0x0000, 0x10000, CRC(83718b9b) SHA1(b3fc6da5816142b9c92a7b8615eb5bcb2c78ea46) )
223 ROM_LOAD16_BYTE( "zz-5.rom", 0x0001, 0x10000, CRC(18557f41) SHA1(6ef908732b7775c1ea2b33f799635075db5756de) )
224
225 ROM_REGION( 0x10000, "audiocpu", 0 )
226 ROM_LOAD( "zz-1.rom", 0x00000, 0x08000, CRC(223ccce5) SHA1(3aa25ca914960b929dc853d07a958ed874e42fee) )
227
228 ROM_REGION( 0x080000, "gfx1", 0 )
229 ROM_LOAD( "zz-6.rom", 0x00000, 0x80000, CRC(c8b906b9) SHA1(1775d69df6397d6772b20c65751d44556d76c033) )
230
231 ROM_REGION( 0x40000, "oki", 0 ) // ADPCM samples
232 ROM_LOAD( "zz-2.rom", 0x00000, 0x20000, CRC(c7551e81) SHA1(520de3074fa6a71fef10d5a76cba5580fd1cbbae) )
233 ROM_LOAD( "zz-3.rom", 0x20000, 0x20000, CRC(e348ff5e) SHA1(6d2755d9b31366f4c2ddd296790234deb8f821c8) )
234 ROM_END
235
236 ROM_START( lvgirl94 ) // PCB 'COMAD MADE IN KOREA 93 EDIT00', sticker 'COMAD-078'
237 ROM_REGION( 0x20000, "maincpu", 0 ) // 128k for 68000 code
238 ROM_LOAD16_BYTE( "rom4", 0x0000, 0x10000, CRC(c4fb449e) SHA1(dd1c567ba2cf951267dd622e2e9af265e742f246) )
239 ROM_LOAD16_BYTE( "rom5", 0x0001, 0x10000, CRC(5d446a1a) SHA1(2d7ea25e5b86e7cf4eb7f10daa1eaaaed6830a53) )
240
241 ROM_REGION( 0x080000, "gfx1", 0 )
242 ROM_LOAD( "rom6", 0x00000, 0x40000, CRC(eeeb94ba) SHA1(9da09312c090ef2d40f596247d9a7decf3724e54) )
243
244 // sound roms are the same as zerozone
245 ROM_REGION( 0x10000, "audiocpu", 0 )
246 ROM_LOAD( "rom1", 0x00000, 0x08000, CRC(223ccce5) SHA1(3aa25ca914960b929dc853d07a958ed874e42fee) )
247
248 ROM_REGION( 0x40000, "oki", 0 ) // ADPCM samples
249 ROM_LOAD( "rom2", 0x00000, 0x20000, CRC(c7551e81) SHA1(520de3074fa6a71fef10d5a76cba5580fd1cbbae) )
250 ROM_LOAD( "rom3", 0x20000, 0x20000, CRC(e348ff5e) SHA1(6d2755d9b31366f4c2ddd296790234deb8f821c8) )
251 ROM_END
252
253
254 GAME( 1993, zerozone, 0, zerozone, zerozone, zerozone_state, empty_init, ROT0, "Comad", "Zero Zone", MACHINE_SUPPORTS_SAVE )
255 GAME( 1994, lvgirl94, 0, zerozone, zerozone, zerozone_state, empty_init, ROT0, "Comad", "Las Vegas Girl (Girl '94)", MACHINE_SUPPORTS_SAVE )
256