// license:BSD-3-Clause
// copyright-holders:Mike Balfour
/***************************************************************************
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 "includes/canyon.h"
#include "cpu/m6502/m6502.h"
#include "sound/discrete.h"
#include "screen.h"
#include "speaker.h"
/*************************************
*
* Palette generation
*
*************************************/
void canyon_state::canyon_palette(palette_device &palette) const
{
palette.set_pen_color(0, rgb_t(0x80, 0x80, 0x80)); // GREY
palette.set_pen_color(1, rgb_t(0x00, 0x00, 0x00)); // BLACK
palette.set_pen_color(2, rgb_t(0x80, 0x80, 0x80)); // GREY
palette.set_pen_color(3, rgb_t(0xff, 0xff, 0xff)); // WHITE
}
/*************************************
*
* Read handlers
*
*************************************/
READ8_MEMBER(canyon_state::canyon_switches_r)
{
uint8_t val = 0;
if ((ioport("IN2")->read() >> (offset & 7)) & 1)
val |= 0x80;
if ((ioport("IN1")->read() >> (offset & 3)) & 1)
val |= 0x01;
return val;
}
READ8_MEMBER(canyon_state::canyon_options_r)
{
return (ioport("DSW")->read() >> (2 * (~offset & 3))) & 3;
}
/*************************************
*
* Write handlers
*
*************************************/
WRITE8_MEMBER(canyon_state::output_latch_w)
{
// ADR1 = D, ADR8 = A2, ADR7 = A1, ADR0 = A0
m_outlatch->write_bit((offset & 0x180) >> 6 | BIT(offset, 0), BIT(offset, 1));
}
/*************************************
*
* Main CPU memory handlers
*
*************************************/
void canyon_state::main_map(address_map &map)
{
map.global_mask(0x3fff);
map(0x0000, 0x00ff).mirror(0x100).ram();
map(0x0400, 0x0401).w(FUNC(canyon_state::canyon_motor_w));
map(0x0500, 0x0500).w(FUNC(canyon_state::canyon_explode_w));
map(0x0501, 0x0501).w(m_watchdog, FUNC(watchdog_timer_device::reset_w)); /* watchdog, disabled in service mode */
map(0x0600, 0x0603).select(0x0180).w(FUNC(canyon_state::output_latch_w));
map(0x0800, 0x0bff).ram().w(FUNC(canyon_state::canyon_videoram_w)).share("videoram");
map(0x1000, 0x17ff).r(FUNC(canyon_state::canyon_switches_r)).nopw(); /* sloppy code writes here */
map(0x1800, 0x1fff).r(FUNC(canyon_state::canyon_options_r));
map(0x2000, 0x3fff).rom();
}
/*************************************
*
* 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_CUSTOM ) PORT_VBLANK("screen")
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( gfx_canyon )
GFXDECODE_ENTRY( "gfx1", 0, tile_layout, 0, 2 )
GFXDECODE_ENTRY( "gfx2", 0, sprite_layout, 0, 2 )
GFXDECODE_END
/*************************************
*
* Machine driver
*
*************************************/
void canyon_state::canyon(machine_config &config)
{
/* basic machine hardware */
M6502(config, m_maincpu, 12.096_MHz_XTAL / 16);
m_maincpu->set_addrmap(AS_PROGRAM, &canyon_state::main_map);
F9334(config, m_outlatch); // C7
m_outlatch->q_out_cb<0>().set("discrete", FUNC(discrete_device::write_line<CANYON_WHISTLE1_EN>));
m_outlatch->q_out_cb<1>().set("discrete", FUNC(discrete_device::write_line<CANYON_WHISTLE2_EN>));
m_outlatch->q_out_cb<2>().set_output("led0"); // 1 PLAYER LAMP
m_outlatch->q_out_cb<3>().set_output("led1"); // 2 PLAYER LAMP
m_outlatch->q_out_cb<4>().set("discrete", FUNC(discrete_device::write_line<CANYON_ATTRACT1_EN>));
m_outlatch->q_out_cb<5>().set("discrete", FUNC(discrete_device::write_line<CANYON_ATTRACT2_EN>));
WATCHDOG_TIMER(config, m_watchdog).set_vblank_count("screen", 8);
/* video hardware */
screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
screen.set_raw(12.096_MHz_XTAL / 2, 384, 0, 256, 262, 0, 240); // HSYNC = 15,750 Hz
screen.set_screen_update(FUNC(canyon_state::screen_update_canyon));
screen.set_palette(m_palette);
screen.screen_vblank().set_inputline(m_maincpu, m6502_device::NMI_LINE);
GFXDECODE(config, m_gfxdecode, m_palette, gfx_canyon);
PALETTE(config, m_palette, FUNC(canyon_state::canyon_palette), 4);
/* sound hardware */
SPEAKER(config, "lspeaker").front_left();
SPEAKER(config, "rspeaker").front_right();
DISCRETE(config, m_discrete, canyon_discrete);
m_discrete->add_route(0, "lspeaker", 1.0);
m_discrete->add_route(1, "rspeaker", 1.0);
}
/*************************************
*
* 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, canyon_state, empty_init, ROT0, "Atari", "Canyon Bomber", MACHINE_SUPPORTS_SAVE )
GAME( 1977, canyonp, canyon, canyon, canyon, canyon_state, empty_init, ROT0, "Atari", "Canyon Bomber (prototype)", MACHINE_SUPPORTS_SAVE )