/
avalnche.cpp
307 lines (248 loc) · 11 KB
/
avalnche.cpp
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// license:BSD-3-Clause
// copyright-holders:Mike Balfour
/***************************************************************************
Atari Avalanche hardware
driver by Mike Balfour
Games supported:
* Avalanche
* Catch (prototype)
TODO:
* Catch discrete sound
****************************************************************************
Memory Map:
0000-1FFF RAM
2000-2FFF R INPUTS
3000-3FFF W WATCHDOG
4000-4FFF W OUTPUTS
5000-5FFF W NOISE SOUND LEVEL (not in Catch)
6000-7FFF R PROGRAM ROM
8000-DFFF UNUSED
E000-FFFF PROGRAM ROM (remapped)
If you have any questions about how this driver works, don't hesitate to
ask. - Mike Balfour (mab22@po.cwru.edu)
Disassembly shows Catch never uses 2003 or 3000.
***************************************************************************/
#include "emu.h"
#include "avalnche.h"
#include "cpu/m6502/m6502.h"
#include "machine/74259.h"
#include "machine/watchdog.h"
#include "screen.h"
#include "avalnche.lh"
TIMER_DEVICE_CALLBACK_MEMBER(avalnche_state::nmi_16v)
{
m_maincpu->pulse_input_line(m6502_device::NMI_LINE, attotime::zero);
}
/*************************************
*
* Video update
*
*************************************/
uint32_t avalnche_state::screen_update_avalnche(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
{
for (offs_t offs = 0; offs < m_videoram.bytes(); offs++)
{
uint8_t x = offs << 3;
int const y = offs >> 5;
uint8_t data = m_videoram[offs];
for (int i = 0; i < 8; i++)
{
pen_t pen;
if (m_avalance_video_inverted)
pen = (data & 0x80) ? rgb_t::white() : rgb_t::black();
else
pen = (data & 0x80) ? rgb_t::black() : rgb_t::white();
bitmap.pix(y, x) = pen;
data <<= 1;
x++;
}
}
return 0;
}
/*************************************
*
* CPU memory handlers
*
*************************************/
void avalnche_state::video_invert_w(int state)
{
m_avalance_video_inverted = state;
}
void avalnche_state::catch_coin_counter_w(uint8_t data)
{
machine().bookkeeping().coin_counter_w(0, data & 1);
machine().bookkeeping().coin_counter_w(1, data & 2);
}
void avalnche_state::main_map(address_map &map)
{
map.global_mask(0x7fff);
map(0x0000, 0x1fff).ram().share("videoram");
map(0x2000, 0x2000).mirror(0x0ffc).portr("IN0");
map(0x2001, 0x2001).mirror(0x0ffc).portr("IN1");
map(0x2002, 0x2002).mirror(0x0ffc).portr("PADDLE");
map(0x2003, 0x2003).mirror(0x0ffc).nopr();
map(0x3000, 0x3000).mirror(0x0fff).w("watchdog", FUNC(watchdog_timer_device::reset_w));
map(0x4000, 0x4007).mirror(0x0ff8).w("latch", FUNC(f9334_device::write_d0));
map(0x5000, 0x5000).mirror(0x0fff).w(FUNC(avalnche_state::avalnche_noise_amplitude_w));
map(0x6000, 0x7fff).rom();
}
void avalnche_state::catch_map(address_map &map)
{
map.global_mask(0x7fff);
map(0x0000, 0x1fff).ram().share("videoram");
map(0x2000, 0x2000).mirror(0x0ffc).portr("IN0");
map(0x2001, 0x2001).mirror(0x0ffc).portr("IN1");
map(0x2002, 0x2002).mirror(0x0ffc).portr("PADDLE");
map(0x4000, 0x4007).mirror(0x0ff8).w("latch", FUNC(f9334_device::write_d0));
map(0x6000, 0x6000).mirror(0x0fff).w(FUNC(avalnche_state::catch_coin_counter_w));
map(0x7000, 0x7fff).rom();
}
/*************************************
*
* Port definitions
*
*************************************/
static INPUT_PORTS_START( avalnche )
PORT_START("IN0")
PORT_DIPUNUSED_DIPLOC( 0x01, 0x01, "SW:6" ) /* Listed as "Unused" */
PORT_DIPUNUSED_DIPLOC( 0x02, 0x02, "SW:5" ) /* Listed as "Unused" */
PORT_DIPNAME( 0x0c, 0x04, DEF_STR( Coinage ) ) PORT_DIPLOCATION("SW:4,3")
PORT_DIPSETTING( 0x08, DEF_STR( 2C_1C ) )
PORT_DIPSETTING( 0x04, DEF_STR( 1C_1C ) )
PORT_DIPSETTING( 0x0c, DEF_STR( 1C_2C ) )
PORT_DIPSETTING( 0x00, DEF_STR( Free_Play ) )
PORT_DIPNAME( 0x30, 0x00, DEF_STR( Language ) ) PORT_DIPLOCATION("SW:2,1")
PORT_DIPSETTING( 0x00, DEF_STR( English ) )
PORT_DIPSETTING( 0x30, DEF_STR( German ) )
PORT_DIPSETTING( 0x20, DEF_STR( French ) )
PORT_DIPSETTING( 0x10, DEF_STR( Spanish ) )
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_START2 )
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_START1 )
PORT_START("IN1")
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_COIN1 )
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_COIN2 )
PORT_DIPNAME( 0x04, 0x04, "Allow Extended Play" ) PORT_DIPLOCATION("SW:8")
PORT_DIPSETTING( 0x00, DEF_STR( No ) )
PORT_DIPSETTING( 0x04, DEF_STR( Yes ) )
PORT_DIPNAME( 0x08, 0x00, "Lives/Extended Play" ) PORT_DIPLOCATION("SW:7")
PORT_DIPSETTING( 0x00, "3/450 Points" )
PORT_DIPSETTING( 0x08, "5/750 Points" )
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNKNOWN ) /* SLAM */
PORT_SERVICE( 0x20, IP_ACTIVE_HIGH)
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_BUTTON1 ) /* Serve */
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_CUSTOM ) PORT_VBLANK("screen") /* VBLANK */
PORT_START("PADDLE")
PORT_BIT( 0xff, 0x80, IPT_PADDLE ) PORT_MINMAX(0x40, 0xb7) PORT_SENSITIVITY(50) PORT_KEYDELTA(10) PORT_CENTERDELTA(0)
INPUT_PORTS_END
static INPUT_PORTS_START( cascade )
PORT_INCLUDE( avalnche )
PORT_MODIFY("IN0")
PORT_DIPNAME( 0x30, 0x00, DEF_STR( Language ) ) PORT_DIPLOCATION("SW:2,1")
PORT_DIPSETTING( 0x00, DEF_STR( English ) )
PORT_DIPSETTING( 0x30, DEF_STR( German ) )
PORT_DIPSETTING( 0x20, DEF_STR( French ) )
PORT_DIPSETTING( 0x10, DEF_STR( Italian ) )
PORT_MODIFY("IN1")
PORT_DIPNAME( 0x08, 0x00, "Extended Play" ) PORT_DIPLOCATION("SW:7")
PORT_DIPSETTING( 0x00, "1500 Points" )
PORT_DIPSETTING( 0x08, "2500 Points" )
INPUT_PORTS_END
static INPUT_PORTS_START( catch )
PORT_INCLUDE( avalnche )
PORT_MODIFY("IN0")
PORT_DIPNAME( 0x30, 0x00, DEF_STR( Language ) ) PORT_DIPLOCATION("SW:2,1")
PORT_DIPSETTING( 0x00, DEF_STR( English ) )
PORT_DIPSETTING( 0x30, DEF_STR( German ) )
PORT_DIPSETTING( 0x20, DEF_STR( French ) )
PORT_DIPSETTING( 0x10, DEF_STR( English ) )
PORT_MODIFY("IN1")
PORT_DIPNAME( 0x0c, 0x00, "Extended Play" ) PORT_DIPLOCATION("SW:8,7")
PORT_DIPSETTING( 0x00, "600 Points" )
PORT_DIPSETTING( 0x04, "850 Points" )
PORT_DIPSETTING( 0x08, "1100 Points" )
PORT_DIPSETTING( 0x0c, "1350 Points" )
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_UNKNOWN )
PORT_MODIFY("PADDLE")
PORT_BIT( 0xff, 0x80, IPT_PADDLE ) PORT_MINMAX(0x00, 0xff) PORT_SENSITIVITY(75) PORT_KEYDELTA(10) PORT_CENTERDELTA(0)
INPUT_PORTS_END
/*************************************
*
* Machine driver
*
*************************************/
void avalnche_state::machine_start()
{
save_item(NAME(m_avalance_video_inverted));
}
void avalnche_state::avalnche_base(machine_config &config)
{
/* basic machine hardware */
M6502(config, m_maincpu, 12.096_MHz_XTAL / 16); /* clock input is the "2H" signal divided by two */
m_maincpu->set_addrmap(AS_PROGRAM, &avalnche_state::main_map);
TIMER(config, "16v").configure_scanline(FUNC(avalnche_state::nmi_16v), "screen", 32, 32); // 8 interrupts per frame
F9334(config, m_latch); // F8
m_latch->q_out_cb<0>().set_output("led0"); // 1 CREDIT LAMP
m_latch->q_out_cb<2>().set(FUNC(avalnche_state::video_invert_w));
m_latch->q_out_cb<3>().set_output("led1"); // 2 CREDIT LAMP
m_latch->q_out_cb<7>().set_output("led2"); // START LAMP
// Q1, Q4, Q5, Q6 are configured in audio/avalnche.cpp
/* video hardware */
screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
screen.set_raw(12.096_MHz_XTAL / 2, 384, 0, 256, 262, 16, 256);
screen.set_screen_update(FUNC(avalnche_state::screen_update_avalnche));
}
void avalnche_state::avalnche(machine_config &config)
{
avalnche_base(config);
/* sound hardware */
avalnche_sound(config);
WATCHDOG_TIMER(config, "watchdog").set_vblank_count("screen", 10);
}
void avalnche_state::acatch(machine_config &config)
{
avalnche_base(config);
/* basic machine hardware */
m_maincpu->set_addrmap(AS_PROGRAM, &avalnche_state::catch_map);
/* sound hardware... */
acatch_sound(config);
}
/*************************************
*
* ROM definitions
*
*************************************/
ROM_START( avalnche )
ROM_REGION( 0x8000, "maincpu", 0 )
ROM_LOAD_NIB_HIGH( "30612-01.d2", 0x6800, 0x0800, CRC(3f975171) SHA1(afe680865da97824f1ebade4c7a2ba5d7ee2cbab) )
ROM_LOAD_NIB_LOW ( "30615-01.d3", 0x6800, 0x0800, CRC(3e1a86b4) SHA1(3ff4cffea5b7a32231c0996473158f24c3bbe107) )
ROM_LOAD_NIB_HIGH( "30613-01.e2", 0x7000, 0x0800, CRC(47a224d3) SHA1(9feb7444a2e5a3d90a4fe78ae5d23c3a5039bfaa) )
ROM_LOAD_NIB_LOW ( "30616-01.e3", 0x7000, 0x0800, CRC(f620f0f8) SHA1(7802b399b3469fc840796c3145b5f63781090956) )
ROM_LOAD_NIB_HIGH( "30611-01.c2", 0x7800, 0x0800, CRC(0ad07f85) SHA1(5a1a873b14e63dbb69ee3686ba53f7ca831fe9d0) )
ROM_LOAD_NIB_LOW ( "30614-01.c3", 0x7800, 0x0800, CRC(a12d5d64) SHA1(1647d7416bf9266d07f066d3797bda943e004d24) )
ROM_END
ROM_START( cascade )
ROM_REGION( 0x8000, "maincpu", 0 )
ROM_LOAD( "10005.1a", 0x6800, 0x0400, CRC(54774594) SHA1(03e013b563675fb8a30bd69836466a353db9bfc7) )
ROM_LOAD( "10005.1b", 0x6c00, 0x0400, CRC(fd9575ad) SHA1(ed0a1343d3c0456d458561256d5ee966b6c213f4) )
ROM_LOAD( "10005.2a", 0x7000, 0x0400, CRC(12857c75) SHA1(e42fdee70bd19d6f60e88f106a49dbbd68c591cd) )
ROM_LOAD( "10005.2b", 0x7400, 0x0400, CRC(26361698) SHA1(587cc6f0dc068a74aac41c2cb3336d70d2dd91e5) )
ROM_LOAD( "10005.3a", 0x7800, 0x0400, CRC(d1f422ff) SHA1(65ecbf0a22ba340d6a1768ed029030bac9c19e0f) )
ROM_LOAD( "10005.3b", 0x7c00, 0x0400, CRC(bb243d96) SHA1(3a387a8c50cd9b0db37d12b94dc9e260892dbf21) )
ROM_END
ROM_START( catchp )
ROM_REGION( 0x8000, "maincpu", 0 )
ROM_LOAD_NIB_HIGH( "catch.e2", 0x7000, 0x0800, CRC(ce1911ef) SHA1(1237b3e2c69342d2cccc8a3a9303f1b39b66e927) ) // n82s185
ROM_LOAD_NIB_LOW ( "catch.e3", 0x7000, 0x0800, CRC(32bf254a) SHA1(22920d43beb2f21c0862c3675a4ee3e230d889b2) ) // "
ROM_LOAD_NIB_HIGH( "catch.d2", 0x7800, 0x0800, CRC(404a9551) SHA1(1e966ebb6e08e86e858146fe6c070e96b80171f8) ) // "
ROM_LOAD_NIB_LOW ( "catch.d3", 0x7800, 0x0800, CRC(fde4dd73) SHA1(bc6fbfed8099865bef35b4c3061c7f5541bcec23) ) // "
ROM_REGION( 0x0200, "user1", 0 ) // ?
ROM_LOAD( "catch.k3", 0x0000, 0x0200, CRC(a0ffc6fc) SHA1(b5c1a170acbf490786ed6ecc582712c3d2a97f37) ) // n82s129
ROM_END
/*************************************
*
* Game drivers
*
*************************************/
GAMEL( 1978, avalnche, 0, avalnche, avalnche, avalnche_state, empty_init, ROT0, "Atari", "Avalanche", MACHINE_SUPPORTS_SAVE, layout_avalnche )
GAMEL( 1978, cascade, avalnche, avalnche, cascade, avalnche_state, empty_init, ROT0, "bootleg? (Sidam)", "Cascade", MACHINE_SUPPORTS_SAVE, layout_avalnche )
GAME( 1977, catchp, 0, acatch, catch, avalnche_state, empty_init, ROT0, "Atari", "Catch (prototype)", MACHINE_SUPPORTS_SAVE | MACHINE_NO_SOUND ) // pre-production board, evolved into Avalanche