/***************************************************************************
Atari Canyon Bomber hardware
driver by Mike Balfour
Games supported:
* Canyon Bomber
Known issues:
* none at this time
****************************************************************************
Memory Map:
0000-01FF WRAM
0400-04FF W A0=0:MOTOR1, A0=1:MOTOR2
0500-05FF W A0=0:EXPLODE, A0=1:TIMER RESET
0600-067F W A0=0:WHISTLE1, A0=1:WHISTLE2
0680-06FF W A0=0:LED1, A0=1:LED2
0700-077F W A0=0:ATTRACT1, A0=1:ATTRACT2
0800-0FFF DISPLAY / RAM
1000-17FF SWITCHES
1800-1FFF OPTIONS
2000-27FF ROM1
2800-2FFF ROM2
3000-37FF ROM3 (Language ROM)
3800-3FFF ROM4 (Program ROM)
If you have any questions about how this driver works, don't hesitate to
ask. - Mike Balfour (mab22@po.cwru.edu)
2008-07
Dip locations verified with manual.
***************************************************************************/
#include "emu.h"
#include "cpu/m6502/m6502.h"
#include "includes/canyon.h"
#include "sound/discrete.h"
/*************************************
*
* Palette generation
*
*************************************/
static PALETTE_INIT( canyon )
{
palette_set_color(machine, 0, MAKE_RGB(0x80, 0x80, 0x80)); /* GREY */
palette_set_color(machine, 1, MAKE_RGB(0x00, 0x00, 0x00)); /* BLACK */
palette_set_color(machine, 2, MAKE_RGB(0x80, 0x80, 0x80)); /* GREY */
palette_set_color(machine, 3, MAKE_RGB(0xff, 0xff, 0xff)); /* WHITE */
}
/*************************************
*
* Read handlers
*
*************************************/
static READ8_HANDLER( canyon_switches_r )
{
UINT8 val = 0;
if ((input_port_read(space->machine(), "IN2") >> (offset & 7)) & 1)
val |= 0x80;
if ((input_port_read(space->machine(), "IN1") >> (offset & 3)) & 1)
val |= 0x01;
return val;
}
static READ8_HANDLER( canyon_options_r )
{
return (input_port_read(space->machine(), "DSW") >> (2 * (~offset & 3))) & 3;
}
/*************************************
*
* Write handlers
*
*************************************/
static WRITE8_HANDLER( canyon_led_w )
{
set_led_status(space->machine(), offset & 0x01, offset & 0x02);
}
/*************************************
*
* Main CPU memory handlers
*
*************************************/
static ADDRESS_MAP_START( main_map, AS_PROGRAM, 8 )
ADDRESS_MAP_GLOBAL_MASK(0x3fff)
AM_RANGE(0x0000, 0x00ff) AM_MIRROR(0x100) AM_RAM
AM_RANGE(0x0400, 0x0401) AM_DEVWRITE("discrete", canyon_motor_w)
AM_RANGE(0x0500, 0x0500) AM_DEVWRITE("discrete", canyon_explode_w)
AM_RANGE(0x0501, 0x0501) AM_WRITE(watchdog_reset_w) /* watchdog, disabled in service mode */
AM_RANGE(0x0600, 0x0603) AM_DEVWRITE("discrete", canyon_whistle_w)
AM_RANGE(0x0680, 0x0683) AM_WRITE(canyon_led_w)
AM_RANGE(0x0700, 0x0703) AM_DEVWRITE("discrete", canyon_attract_w)
AM_RANGE(0x0800, 0x0bff) AM_RAM_WRITE(canyon_videoram_w) AM_BASE_MEMBER(canyon_state, m_videoram)
AM_RANGE(0x1000, 0x17ff) AM_READ(canyon_switches_r) AM_WRITENOP /* sloppy code writes here */
AM_RANGE(0x1800, 0x1fff) AM_READ(canyon_options_r)
AM_RANGE(0x2000, 0x3fff) AM_ROM
ADDRESS_MAP_END
/*************************************
*
* Port definitions
*
*************************************/
static INPUT_PORTS_START( canyon )
PORT_START("DSW")
PORT_DIPNAME( 0x03, 0x00, DEF_STR( Language ) ) PORT_DIPLOCATION("SW:1,2")
PORT_DIPSETTING( 0x00, DEF_STR( English ) )
PORT_DIPSETTING( 0x01, DEF_STR( Spanish ) )
PORT_DIPSETTING( 0x02, DEF_STR( French ) )
PORT_DIPSETTING( 0x03, DEF_STR( German ) )
PORT_DIPUNKNOWN_DIPLOC( 0x04, 0x04, "SW:3" ) /* Manual says these are unused */
PORT_DIPUNKNOWN_DIPLOC( 0x08, 0x08, "SW:4" ) /* Manual says these are unused */
PORT_DIPNAME( 0x30, 0x00, "Misses Per Play" ) PORT_DIPLOCATION("SW:5,6")
PORT_DIPSETTING( 0x00, "3" )
PORT_DIPSETTING( 0x10, "4" )
PORT_DIPSETTING( 0x20, "5" )
PORT_DIPSETTING( 0x30, "6" )
PORT_DIPNAME( 0xc0, 0x80, DEF_STR( Coinage ) ) PORT_DIPLOCATION("SW:7,8")
PORT_DIPSETTING( 0xc0, DEF_STR( 2C_1C ) )
PORT_DIPSETTING( 0x80, DEF_STR( 1C_1C ) )
PORT_DIPSETTING( 0x40, DEF_STR( 1C_2C ) )
PORT_DIPSETTING( 0x00, DEF_STR( Free_Play ) )
PORT_START("IN1")
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_UNUSED )
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_UNUSED )
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_PLAYER(1)
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_PLAYER(2)
PORT_START("IN2")
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_COIN1 )
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_COIN2 )
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_START1 )
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_START2 )
PORT_SERVICE( 0x10, IP_ACTIVE_HIGH )
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_VBLANK )
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_BUTTON7 ) PORT_NAME("Hiscore Reset") PORT_CODE(KEYCODE_H)
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_TILT ) /* SLAM */
PORT_START("MOTOR1")
PORT_ADJUSTER( 20, "Motor 1 RPM" )
PORT_START("MOTOR2")
PORT_ADJUSTER( 30, "Motor 2 RPM" )
PORT_START("WHISTLE1")
PORT_ADJUSTER( 70, "Whistle 1 Freq" )
PORT_START("WHISTLE2")
PORT_ADJUSTER( 80, "Whistle 2 Freq" )
INPUT_PORTS_END
/*************************************
*
* Graphics definitions
*
*************************************/
static const gfx_layout tile_layout =
{
8, 8,
64,
1,
{ 0 },
{
0x4, 0x5, 0x6, 0x7, 0xC, 0xD, 0xE, 0xF
},
{
0x00, 0x10, 0x20, 0x30, 0x40, 0x50, 0x60, 0x70
},
0x80
};
static const gfx_layout sprite_layout =
{
32, 16,
4,
1,
{ 0 },
{
0x007, 0x006, 0x005, 0x004, 0x003, 0x002, 0x001, 0x000,
0x00F, 0x00E, 0x00D, 0x00C, 0x00B, 0x00A, 0x009, 0x008,
0x107, 0x106, 0x105, 0x104, 0x103, 0x102, 0x101, 0x100,
0x10F, 0x10E, 0x10D, 0x10C, 0x10B, 0x10A, 0x109, 0x108
},
{
0x00, 0x10, 0x20, 0x30, 0x40, 0x50, 0x60, 0x70,
0x80, 0x90, 0xA0, 0xB0, 0xC0, 0xD0, 0xE0, 0xF0
},
0x200
};
static GFXDECODE_START( canyon )
GFXDECODE_ENTRY( "gfx1", 0, tile_layout, 0, 2 )
GFXDECODE_ENTRY( "gfx2", 0, sprite_layout, 0, 2 )
GFXDECODE_END
/*************************************
*
* Machine driver
*
*************************************/
static MACHINE_CONFIG_START( canyon, canyon_state )
/* basic machine hardware */
MCFG_CPU_ADD("maincpu", M6502, XTAL_12_096MHz / 16)
MCFG_CPU_PROGRAM_MAP(main_map)
MCFG_CPU_VBLANK_INT("screen", nmi_line_pulse)
MCFG_WATCHDOG_VBLANK_INIT(8)
/* video hardware */
MCFG_SCREEN_ADD("screen", RASTER)
MCFG_SCREEN_REFRESH_RATE(60)
MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(22 * 1000000 / 15750))
MCFG_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
MCFG_SCREEN_SIZE(256, 240)
MCFG_SCREEN_VISIBLE_AREA(0, 255, 0, 239)
MCFG_SCREEN_UPDATE(canyon)
MCFG_GFXDECODE(canyon)
MCFG_PALETTE_LENGTH(4)
MCFG_PALETTE_INIT(canyon)
MCFG_VIDEO_START(canyon)
/* sound hardware */
MCFG_SPEAKER_STANDARD_STEREO("lspeaker", "rspeaker")
MCFG_SOUND_ADD("discrete", DISCRETE, 0)
MCFG_SOUND_CONFIG_DISCRETE(canyon)
MCFG_SOUND_ROUTE(0, "lspeaker", 1.0)
MCFG_SOUND_ROUTE(1, "rspeaker", 1.0)
MACHINE_CONFIG_END
/*************************************
*
* ROM definitions
*
*************************************/
ROM_START( canyon )
ROM_REGION( 0x4000, "maincpu", 0 )
ROM_LOAD_NIB_LOW ( "9499-01.j1", 0x3000, 0x0400, CRC(31800767) SHA1(d4aebe12d3c45a2a8a361dc6f63e1a6230a78c17) )
ROM_LOAD_NIB_HIGH( "9503-01.p1", 0x3000, 0x0400, CRC(1eddbe28) SHA1(7d30280bf9edff743c16386d7cdec78094477996) )
ROM_LOAD ( "9496-01.d1", 0x3800, 0x0800, CRC(8be15080) SHA1(095c15e9ac91623b2d514858dca2e4c261d36fd0) )
ROM_REGION( 0x0400, "gfx1", 0 )
ROM_LOAD( "9492-01.n8", 0x0000, 0x0400, CRC(7449f754) SHA1(a8ffc39e1a86c94487551f5026eedbbd066b12c9) )
ROM_REGION( 0x0100, "gfx2", 0 )
ROM_LOAD_NIB_LOW ( "9506-01.m5", 0x0000, 0x0100, CRC(0d63396a) SHA1(147fae3b02a86310c8d022a7e7cfbf71ea511616) )
ROM_LOAD_NIB_HIGH( "9505-01.n5", 0x0000, 0x0100, CRC(60507c07) SHA1(fcb76890cbaa37e02392bf8b97f7be9a6fe6a721) )
ROM_REGION( 0x0100, "proms", 0 )
ROM_LOAD( "9491-01.j6", 0x0000, 0x0100, CRC(b8094b4c) SHA1(82dc6799a19984f3b204ee3aeeb007e55afc8be3) ) /* sync (not used) */
ROM_END
ROM_START( canyonp )
ROM_REGION( 0x4000, "maincpu", 0 )
ROM_LOAD_NIB_LOW ( "cbp3000l.j1", 0x3000, 0x0800, CRC(49cf29a0) SHA1(b58f024f45f85e5c2a48a95c60e80fd1be60eaac) )
ROM_LOAD_NIB_HIGH( "cbp3000m.p1", 0x3000, 0x0800, CRC(b4385c23) SHA1(b550dfe9182f2b29aedba160a0917ca78b82f0e7) )
ROM_LOAD_NIB_LOW ( "cbp3800l.h1", 0x3800, 0x0800, CRC(c7ee4431) SHA1(7a0f4454a981c4e9ee27e273e9a8379458e660e5) )
ROM_LOAD_NIB_HIGH( "cbp3800m.r1", 0x3800, 0x0800, CRC(94246a9a) SHA1(5ff8b69fb744a5f62d4cf291e8f25e3620b479e7) )
ROM_REGION( 0x0400, "gfx1", 0 )
ROM_LOAD( "9492-01.n8", 0x0000, 0x0400, CRC(7449f754) SHA1(a8ffc39e1a86c94487551f5026eedbbd066b12c9) )
ROM_REGION( 0x0100, "gfx2", 0 )
ROM_LOAD_NIB_LOW ( "9506-01.m5", 0x0000, 0x0100, CRC(0d63396a) SHA1(147fae3b02a86310c8d022a7e7cfbf71ea511616) )
ROM_LOAD_NIB_HIGH( "9505-01.n5", 0x0000, 0x0100, CRC(60507c07) SHA1(fcb76890cbaa37e02392bf8b97f7be9a6fe6a721) )
ROM_REGION( 0x0100, "proms", 0 )
ROM_LOAD( "9491-01.j6", 0x0000, 0x0100, CRC(b8094b4c) SHA1(82dc6799a19984f3b204ee3aeeb007e55afc8be3) ) /* sync (not used) */
ROM_END
/*************************************
*
* Game drivers
*
*************************************/
GAME( 1977, canyon, 0, canyon, canyon, 0, ROT0, "Atari", "Canyon Bomber", GAME_SUPPORTS_SAVE )
GAME( 1977, canyonp, canyon, canyon, canyon, 0, ROT0, "Atari", "Canyon Bomber (prototype)", GAME_SUPPORTS_SAVE )