summaryrefslogtreecommitdiffstats
path: root/src/mame/drivers/nitedrvr.cpp
blob: 8c462419ba2ccb210556248b00b5bfd344749a29 (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
// license:BSD-3-Clause
// copyright-holders:Mike Balfour
/***************************************************************************

    Atari Night Driver hardware

    driver by Mike Balfour

    Games supported:
        * Night Driver

    Known issues:
        * The road boxes in service mode are flipped horizontally and there
          is an extraneous box according to the service manual.

****************************************************************************

    Memory Map:
        0000-01FF   R/W     SCRAM (Scratchpad RAM)
        0200-03FF    W      PFW (Playfield Write)
        0400-05FF    W      HVC (Horiz/Vert/Char for Roadway)
        0600-07FF    R      IN0
        0800-09FF    R      IN1
        0A00-0BFF    W      OUT0
        0C00-0DFF    W      OUT1
        0E00-0FFF    -      OUT2 (Not used)
        8000-83FF    R      PFR (Playfield Read)
        8400-87FF           Steering Reset
        8800-8FFF    -      Spare (Not used)
        9000-97FF    R      Program ROM1
        9800-9FFF    R      Program ROM2
        (F800-FFFF)  R      Program ROM2 - only needed for the 6502 vectors

    If you have any questions about how this driver works, don't hesitate to
    ask.  - Mike Balfour (mab22@po.cwru.edu)

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

#include "emu.h"
#include "includes/nitedrvr.h"

#include "cpu/m6502/m6502.h"
#include "machine/rescap.h"
#include "machine/watchdog.h"
#include "sound/discrete.h"
#include "screen.h"
#include "speaker.h"

/* Memory Map */

void nitedrvr_state::nitedrvr_map(address_map &map)
{
	map(0x0000, 0x00ff).ram().mirror(0x100); // SCRAM
	map(0x0200, 0x027f).nopr().w(this, FUNC(nitedrvr_state::nitedrvr_videoram_w)).mirror(0x180).share("videoram"); // PFW
	map(0x0400, 0x042f).nopr().writeonly().mirror(0x1c0).share("hvc"); // POSH, POSV, CHAR
	map(0x0430, 0x043f).w("watchdog", FUNC(watchdog_timer_device::reset_w)).mirror(0x1c0);
	map(0x0600, 0x07ff).r(this, FUNC(nitedrvr_state::nitedrvr_in0_r));
	map(0x0800, 0x09ff).r(this, FUNC(nitedrvr_state::nitedrvr_in1_r));
	map(0x0a00, 0x0bff).w(this, FUNC(nitedrvr_state::nitedrvr_out0_w));
	map(0x0c00, 0x0dff).w(this, FUNC(nitedrvr_state::nitedrvr_out1_w));
	map(0x8000, 0x807f).readonly().mirror(0x380).share("videoram"); // PFR
	map(0x8400, 0x87ff).rw(this, FUNC(nitedrvr_state::nitedrvr_steering_reset_r), FUNC(nitedrvr_state::nitedrvr_steering_reset_w));
	map(0x9000, 0x9fff).rom(); // ROM1-ROM2
	map(0xfff0, 0xffff).rom(); // ROM2 for 6502 vectors
}

/* Input Ports */

static INPUT_PORTS_START( nitedrvr )
	PORT_START("DSW0")  // fake
	PORT_DIPNAME( 0x30, 0x10, DEF_STR( Coinage ) )
	PORT_DIPSETTING(    0x30, DEF_STR( 2C_1C ) )
	//PORT_DIPSETTING(  0x20, DEF_STR( 1C_1C ) ) // not a typo
	PORT_DIPSETTING(    0x10, DEF_STR( 1C_1C ) )
	PORT_DIPSETTING(    0x00, DEF_STR( 1C_2C ) )
	PORT_DIPNAME( 0xc0, 0x80, "Playing Time" )
	PORT_DIPSETTING(    0x00, "50" )
	PORT_DIPSETTING(    0x40, "75" )
	PORT_DIPSETTING(    0x80, "100" )
	PORT_DIPSETTING(    0xC0, "125" )

	PORT_START("DSW1")  // fake
	PORT_DIPNAME( 0x10, 0x00, "Track Set" )
	PORT_DIPSETTING(    0x00, DEF_STR( Normal ) )
	PORT_DIPSETTING(    0x10, DEF_STR( Reverse ) )
	PORT_DIPNAME( 0x20, 0x20, "Bonus Time" )
	PORT_DIPSETTING(    0x00, DEF_STR ( No ) )
	PORT_DIPSETTING(    0x20, "Score = 350" )
	PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_CUSTOM ) PORT_VBLANK("screen")
	PORT_SERVICE( 0x80, IP_ACTIVE_LOW )

	PORT_START("GEARS") // fake
	PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_BUTTON5 ) PORT_NAME("1st Gear")
	PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_BUTTON6 ) PORT_NAME("2nd Gear")
	PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_BUTTON7 ) PORT_NAME("3rd Gear")
	PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_BUTTON8 ) PORT_NAME("4th Gear")

	PORT_START("DSW2")  // fake
	PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_UNKNOWN )   // Spare
	PORT_DIPNAME( 0x20, 0x00, "Difficult Bonus" )
	PORT_DIPSETTING(    0x00, DEF_STR( Normal ) )
	PORT_DIPSETTING(    0x20, DEF_STR( Difficult ) )
	PORT_BIT( 0xc0, IP_ACTIVE_HIGH, IPT_UNUSED )

	PORT_START("IN0")   // fake
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN1 )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_COIN2 )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_START1 )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_NAME("Gas")
	PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_NAME("Novice Track")
	PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_BUTTON3 ) PORT_NAME("Expert Track")
	PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_BUTTON4 ) PORT_NAME("Pro Track")
	PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_CUSTOM )   // Alternating signal?

	PORT_START("STEER") // fake
	PORT_BIT( 0xff, 0x00, IPT_DIAL ) PORT_SENSITIVITY(100) PORT_KEYDELTA(10)

	PORT_START("MOTOR")
	PORT_ADJUSTER( 60, "Motor RPM" )
INPUT_PORTS_END

/* Graphics Layouts */

static const gfx_layout charlayout =
{
	8, 8,
	64,
	1,
	{ 0 },
	{ 0, 1, 2, 3, 4, 5, 6, 7 },
	{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 },
	8*8
};

/* Graphics Decode Information */

static GFXDECODE_START( gfx_nitedrvr )
	GFXDECODE_ENTRY( "gfx1", 0, charlayout, 0, 1 )
GFXDECODE_END

/* Machine Driver */

MACHINE_CONFIG_START(nitedrvr_state::nitedrvr)

	/* basic machine hardware */
	MCFG_DEVICE_ADD("maincpu", M6502, XTAL(12'096'000)/12) // 1 MHz
	MCFG_DEVICE_PROGRAM_MAP(nitedrvr_map)
	MCFG_DEVICE_VBLANK_INT_DRIVER("screen", nitedrvr_state, irq0_line_hold)

	MCFG_WATCHDOG_ADD("watchdog")
	MCFG_WATCHDOG_VBLANK_INIT("screen", 3)

	MCFG_TIMER_DRIVER_ADD_PERIODIC("crash_timer", nitedrvr_state, nitedrvr_crash_toggle_callback, PERIOD_OF_555_ASTABLE(RES_K(180), 330, CAP_U(1)))

	/* video hardware */
	MCFG_SCREEN_ADD("screen", RASTER)
	MCFG_SCREEN_REFRESH_RATE(57) // how is this derived?
	MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500) /* not accurate */)
	MCFG_SCREEN_SIZE(32*8, 32*8)
	MCFG_SCREEN_VISIBLE_AREA(0*8, 32*8-1, 0*8, 32*8-1)
	MCFG_SCREEN_UPDATE_DRIVER(nitedrvr_state, screen_update_nitedrvr)
	MCFG_SCREEN_PALETTE("palette")

	MCFG_DEVICE_ADD("gfxdecode", GFXDECODE, "palette", gfx_nitedrvr)

	MCFG_PALETTE_ADD_MONOCHROME("palette")

	/* sound hardware */
	SPEAKER(config, "mono").front_center();

	MCFG_DEVICE_ADD("discrete", DISCRETE, nitedrvr_discrete)
	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)
MACHINE_CONFIG_END

/* ROMs */

/*
ROM_START( nitedrvo )       // early revision has the program code stored in 8 chips
    ROM_REGION( 0x10000, "maincpu", 0 )
    ROM_LOAD( "006560-01.h1", 0x9000, 0x0200, NO_DUMP ) // PROM 1
    ROM_LOAD( "006561-01.c1", 0x9200, 0x0200, NO_DUMP ) // PROM 2
    ROM_LOAD( "006562-01.j1", 0x9400, 0x0200, NO_DUMP ) // PROM 3
    ROM_LOAD( "006563-01.d1", 0x9600, 0x0200, NO_DUMP ) // PROM 4
    ROM_LOAD( "006564-01.k1", 0x9800, 0x0200, NO_DUMP ) // PROM 5
    ROM_LOAD( "006565-01.e1", 0x9a00, 0x0200, NO_DUMP ) // PROM 6
    ROM_LOAD( "006566-01.l1", 0x9c00, 0x0200, NO_DUMP ) // PROM 7
    ROM_LOAD( "006567-01.f1", 0x9e00, 0x0200, NO_DUMP ) // PROM 8
ROM_END
*/

ROM_START( nitedrvr )
	ROM_REGION( 0x10000, "maincpu", 0 )
	ROM_LOAD( "006569-01.d2", 0x9000, 0x0800, CRC(7afa7542) SHA1(81018e25ebdeae1daf1308676661063b6fd7fd22) ) // MASK ROM 1
	ROM_LOAD( "006570-01.f2", 0x9800, 0x0800, CRC(bf5d77b1) SHA1(6f603f8b0973bd89e0e721b66944aac8e9f904d9) ) // MASK ROM 2
	ROM_RELOAD(               0xf800, 0x0800 ) // vectors

	ROM_REGION( 0x200, "gfx1", 0 )
	ROM_LOAD( "006568-01.p2", 0x0000, 0x0200, CRC(f80d8889) SHA1(ca573543dcce1221459d5693c476cef14bfac4f4) ) // PROM, Alpha-Numeric

	ROM_REGION( 0x100, "proms", 0 )
	ROM_LOAD( "006559-01.h7", 0x0000, 0x0100, CRC(5a8d0e42) SHA1(772220c4c24f18769696ddba26db2bc2e5b0909d) ) // PROM, Sync
ROM_END

/* Game Drivers */

GAME( 1976, nitedrvr, 0, nitedrvr, nitedrvr, nitedrvr_state, empty_init, ROT0, "Atari", "Night Driver", MACHINE_IMPERFECT_SOUND | MACHINE_SUPPORTS_SAVE )