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-rw-r--r--src/mame/drivers/stuntair.cpp580
1 files changed, 580 insertions, 0 deletions
diff --git a/src/mame/drivers/stuntair.cpp b/src/mame/drivers/stuntair.cpp
new file mode 100644
index 00000000000..3a4313187d3
--- /dev/null
+++ b/src/mame/drivers/stuntair.cpp
@@ -0,0 +1,580 @@
+// license:BSD-3-Clause
+// copyright-holders:David Haywood
+/*
+
+ Stunt Air by Nuova Videotron 1983
+
+ driver todo: (SOME OF THIS WILL NEED PCB REFERENCES / MEASUREMENTS)
+ - correct colour PROM decoding (resistor values?)
+ - correct FG colour handling (currently use a hardcoded white)
+ - correct sound (discrete stuff is for filtering? or drums?)
+ - correct remaining GFX / sprite issues (flicker sometimes, might need better vblank timing?)
+
+
+Hardware info (complete):
+Main cpu Z80A
+Sound cpu Z80A
+Sound ic AY-3-8910 x2 @ 1.536MHz
+Note: stereo sound output.Op amps LM3900 x3, audio amps TDA2002 x2, many discrete components
+
+Osc: 18.432 Mhz
+
+Ram:
+Work 2kb (6116)
+Sound 1kb (2114 x2)
+Chars 1kb (2114 x2)
+Bg 1,5kb (2114 x3)
+Sprites 1kb (2148 x2)
+color 320byte (27ls00 x10)
+
+Rom definiton:
+-top pcb-
+stuntair.a0,a1,a3,a4,a6 main program
+stuntair.e14 sound program
+stuntair.a9 character gfx
+stuntair.a11,a12 background gfx
+stuntair.a13,a15 obj/sprites gfx
+82s123.a7 (removing it results in garbage boot screen with high score table music)
+
+-bottom pcb-
+82s129.l11 green,blue colors
+82s129.m11 red color
+
+Eproms are 2764
+Bproms are 82s123,82s129
+
+Dip switches (by direct test,no manuals present):
+-DIP A-
+SW 1 2 3 5 6 7 8
+ unknown
+SW 4
+ OFF infinite lives (test)
+ ON normal game
+-DIP B-
+SW 1 2 (coin 1)
+ OFF OFF 1 coin 1 play,1 coin 2 play (alternate)
+ ON OFF 2 coin 1 play
+ OFF ON 1 coin 2 play
+ ON ON 1 coin 1 play
+SW 3 4 (coin 2)
+ OFF OFF 1 coin 1 play,1 coin 2 play (alternate)
+ ON OFF 2 coin 1 play
+ OFF ON 1 coin 2 play
+ ON ON 1 coin 1 play
+SW 5 6
+ OFF OFF bonus 50000 pts,100000 every
+ ON OFF bonus 30000 pts,50000 every
+ OFF ON bonus 20000 pts,30000 every
+ ON ON bonus 10000 pts,20000 every
+SW 7 8
+ OFF OFF 5 lives
+ ON OFF 4 lives
+ OFF ON 3 lives
+ ON ON 2 lives
+Note: no table-upright mode sw,upright fixed.No picture flip sw too
+
+
+Eprom dump,hw and dip info by tirino73
+Bprom dump by f205v
+
+*/
+
+#include "emu.h"
+#include "cpu/z80/z80.h"
+#include "sound/ay8910.h"
+
+class stuntair_state : public driver_device
+{
+public:
+ stuntair_state(const machine_config &mconfig, device_type type, const char *tag)
+ : driver_device(mconfig, type, tag),
+ m_maincpu(*this, "maincpu"),
+ m_audiocpu(*this, "audiocpu"),
+ m_fgram(*this, "fgram"),
+ m_bgram(*this, "bgram"),
+ m_bgattrram(*this, "bgattrram"),
+ m_sprram(*this, "sprram"),
+ m_gfxdecode(*this, "gfxdecode"),
+ m_palette(*this, "palette")
+ { }
+
+ required_device<cpu_device> m_maincpu;
+ required_device<cpu_device> m_audiocpu;
+ required_shared_ptr<UINT8> m_fgram;
+ required_shared_ptr<UINT8> m_bgram;
+ required_shared_ptr<UINT8> m_bgattrram;
+ required_shared_ptr<UINT8> m_sprram;
+ required_device<gfxdecode_device> m_gfxdecode;
+ required_device<palette_device> m_palette;
+
+ tilemap_t *m_fg_tilemap;
+ tilemap_t *m_bg_tilemap;
+
+ UINT8 m_bg_xscroll;
+ UINT8 m_nmi_enable;
+ UINT8 m_spritebank0;
+ UINT8 m_spritebank1;
+
+ TILE_GET_INFO_MEMBER(get_stuntair_fg_tile_info);
+ TILE_GET_INFO_MEMBER(get_stuntair_bg_tile_info);
+ DECLARE_WRITE8_MEMBER(stuntair_fgram_w);
+ DECLARE_WRITE8_MEMBER(stuntair_bgram_w);
+ DECLARE_WRITE8_MEMBER(stuntair_bgattrram_w);
+ DECLARE_WRITE8_MEMBER(stuntair_bgxscroll_w);
+ DECLARE_WRITE8_MEMBER(stuntair_nmienable_w);
+ DECLARE_WRITE8_MEMBER(stuntair_spritebank0_w);
+ DECLARE_WRITE8_MEMBER(stuntair_spritebank1_w);
+ DECLARE_WRITE8_MEMBER(stuntair_coin_w);
+ DECLARE_WRITE8_MEMBER(stuntair_sound_w);
+ DECLARE_WRITE8_MEMBER(ay8910_portb_w);
+ INTERRUPT_GEN_MEMBER(stuntair_irq);
+ virtual void machine_start();
+ virtual void machine_reset();
+ virtual void video_start();
+ void draw_sprites(bitmap_ind16 &bitmap, const rectangle &cliprect);
+ UINT32 screen_update_stuntair(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
+ DECLARE_PALETTE_INIT(stuntair);
+};
+
+
+
+/***************************************************************************
+
+ Video
+
+***************************************************************************/
+
+PALETTE_INIT_MEMBER(stuntair_state, stuntair)
+{
+ /* need resistor weights etc. */
+ const UINT8 *color_prom = machine().root_device().memregion("proms")->base();
+
+ for (int i = 0; i < 0x100; i++)
+ {
+ UINT8 data = color_prom[i];
+
+ int b = (data&0xc0)>>6;
+ int g = (data&0x38)>>3;
+ int r = (data&0x07)>>0;
+
+ palette.set_pen_color(i,rgb_t(r<<5,g<<5,b<<6));
+ }
+
+ // just set the FG layer to black and white
+ palette.set_pen_color(0x100,rgb_t(0x00,0x00,0x00));
+ palette.set_pen_color(0x101,rgb_t(0xff,0xff,0xff));
+}
+
+
+TILE_GET_INFO_MEMBER(stuntair_state::get_stuntair_fg_tile_info)
+{
+ int tileno = m_fgram[tile_index];
+ int opaque = tileno & 0x80;
+
+ // where does the FG palette come from? it's a 1bpp layer..
+
+ SET_TILE_INFO_MEMBER(0, tileno&0x7f, 0, opaque?TILE_FORCE_LAYER0 : TILE_FORCE_LAYER1);
+}
+
+TILE_GET_INFO_MEMBER(stuntair_state::get_stuntair_bg_tile_info)
+{
+ int tileno = m_bgram[tile_index];
+ tileno |= (m_bgattrram[tile_index] & 0x08)<<5;
+ int colour = (m_bgattrram[tile_index] & 0x07);
+
+ SET_TILE_INFO_MEMBER(1, tileno, colour, 0);
+}
+
+
+void stuntair_state::video_start()
+{
+ m_fg_tilemap = &machine().tilemap().create(m_gfxdecode, tilemap_get_info_delegate(FUNC(stuntair_state::get_stuntair_fg_tile_info),this), TILEMAP_SCAN_ROWS, 8, 8, 32, 32);
+ m_fg_tilemap->set_transparent_pen(0);
+
+ m_bg_tilemap = &machine().tilemap().create(m_gfxdecode, tilemap_get_info_delegate(FUNC(stuntair_state::get_stuntair_bg_tile_info),this), TILEMAP_SCAN_ROWS, 8, 8, 32, 32);
+}
+
+
+void stuntair_state::draw_sprites(bitmap_ind16 &bitmap, const rectangle &cliprect)
+{
+ gfx_element *gfx = m_gfxdecode->gfx(2);
+
+ /* there seem to be 2 spritelists with something else (fixed values) between them.. is that significant? */
+ for (int i=0;i<0x400;i+=16)
+ {
+ // +2, +3, +4(high bits): always 00
+ // +6 to +15: unused
+ int x = m_sprram[i+5];
+ int y = m_sprram[i+0];
+ int colour = m_sprram[i+4] & 0x7;
+ int tile = m_sprram[i+1] & 0x3f;
+ int flipy = (m_sprram[i+1] & 0x80)>>7; // used
+// int flipx = (m_sprram[i+1] & 0x40)>>6; // guessed , wrong
+ int flipx = 0;
+
+ if (m_spritebank1) tile |= 0x40;
+ if (m_spritebank0) tile |= 0x80;
+
+ y = 240 - y;
+
+ gfx->transpen(bitmap,cliprect,tile,colour,flipx,flipy,x,y,0);
+ }
+}
+
+UINT32 stuntair_state::screen_update_stuntair(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
+{
+ m_bg_tilemap->set_scrollx(0, m_bg_xscroll);
+
+ m_bg_tilemap->draw(screen, bitmap, cliprect, 0, 0);
+ m_fg_tilemap->draw(screen, bitmap, cliprect, 0, TILEMAP_PIXEL_LAYER0);
+
+ draw_sprites(bitmap, cliprect);
+
+ m_fg_tilemap->draw(screen, bitmap, cliprect, 0, TILEMAP_PIXEL_LAYER1|TILEMAP_DRAW_OPAQUE);
+
+ return 0;
+}
+
+
+
+/***************************************************************************
+
+ Memory Maps, I/O
+
+***************************************************************************/
+
+WRITE8_MEMBER(stuntair_state::stuntair_bgattrram_w)
+{
+ m_bgattrram[offset] = data;
+ m_bg_tilemap->mark_tile_dirty(offset);
+}
+
+WRITE8_MEMBER(stuntair_state::stuntair_bgram_w)
+{
+ m_bgram[offset] = data;
+ m_bg_tilemap->mark_tile_dirty(offset);
+}
+
+WRITE8_MEMBER(stuntair_state::stuntair_fgram_w)
+{
+ m_fgram[offset] = data;
+ m_fg_tilemap->mark_tile_dirty(offset);
+}
+
+
+WRITE8_MEMBER( stuntair_state::stuntair_bgxscroll_w )
+{
+ m_bg_xscroll = data;
+}
+
+
+WRITE8_MEMBER(stuntair_state::stuntair_spritebank0_w)
+{
+ m_spritebank0 = data&0x01;
+ // other bits are unused
+}
+
+WRITE8_MEMBER(stuntair_state::stuntair_spritebank1_w)
+{
+ m_spritebank1 = data&0x01;
+ // other bits are unused
+}
+
+
+WRITE8_MEMBER(stuntair_state::stuntair_nmienable_w)
+{
+ m_nmi_enable = data&0x01;
+ if (!m_nmi_enable)
+ m_maincpu->set_input_line(INPUT_LINE_NMI, CLEAR_LINE);
+ // other bits are unused
+}
+
+WRITE8_MEMBER(stuntair_state::stuntair_coin_w)
+{
+ // lower 2 bits are coin counters, excluding 1st coin(?)
+ coin_counter_w(machine(), 0, data >> 0 & 1);
+ coin_counter_w(machine(), 1, data >> 1 & 1);
+
+ // other bits: unknown
+ if (data & 0xfc)
+ logerror("stuntair_coin_w %02x\n", data);
+}
+
+
+WRITE8_MEMBER(stuntair_state::stuntair_sound_w)
+{
+ soundlatch_byte_w(space, 0, data);
+ m_audiocpu->set_input_line(INPUT_LINE_NMI, PULSE_LINE);
+}
+
+// main Z80
+static ADDRESS_MAP_START( stuntair_map, AS_PROGRAM, 8, stuntair_state )
+ AM_RANGE(0x0000, 0x9fff) AM_ROM
+ AM_RANGE(0xc000, 0xc7ff) AM_RAM
+ AM_RANGE(0xc800, 0xcbff) AM_RAM_WRITE(stuntair_bgattrram_w) AM_SHARE("bgattrram")
+ AM_RANGE(0xd000, 0xd3ff) AM_RAM_WRITE(stuntair_bgram_w) AM_SHARE("bgram")
+ AM_RANGE(0xd800, 0xdfff) AM_RAM AM_SHARE("sprram")
+ AM_RANGE(0xe000, 0xe000) AM_READ_PORT("DSWB") AM_WRITE(stuntair_coin_w)
+ AM_RANGE(0xe800, 0xe800) AM_READ_PORT("DSWA") AM_WRITE(stuntair_bgxscroll_w)
+ AM_RANGE(0xf000, 0xf000) AM_READ_PORT("IN2")
+ AM_RANGE(0xf001, 0xf001) AM_WRITE(stuntair_nmienable_w)
+ AM_RANGE(0xf002, 0xf002) AM_READ_PORT("IN3")
+ AM_RANGE(0xf003, 0xf003) AM_READNOP AM_WRITE(stuntair_spritebank1_w)
+// AM_RANGE(0xf004, 0xf004) AM_WRITENOP
+ AM_RANGE(0xf005, 0xf005) AM_WRITE(stuntair_spritebank0_w)
+// AM_RANGE(0xf006, 0xf006) AM_WRITENOP
+// AM_RANGE(0xf007, 0xf007) AM_WRITENOP
+ AM_RANGE(0xf800, 0xfbff) AM_RAM_WRITE(stuntair_fgram_w) AM_SHARE("fgram")
+ AM_RANGE(0xfc03, 0xfc03) AM_WRITE(stuntair_sound_w)
+ADDRESS_MAP_END
+
+// sound Z80
+static ADDRESS_MAP_START( stuntair_sound_map, AS_PROGRAM, 8, stuntair_state )
+ AM_RANGE(0x0000, 0x1fff) AM_ROM
+ AM_RANGE(0x4000, 0x43ff) AM_RAM
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( stuntair_sound_portmap, AS_IO, 8, stuntair_state )
+ ADDRESS_MAP_GLOBAL_MASK(0xff)
+ AM_RANGE(0x03, 0x03) AM_DEVWRITE("ay2", ay8910_device, address_w)
+ AM_RANGE(0x07, 0x07) AM_DEVWRITE("ay2", ay8910_device, data_w)
+ AM_RANGE(0x0c, 0x0d) AM_DEVREADWRITE("ay1", ay8910_device, data_r, address_data_w)
+ADDRESS_MAP_END
+
+
+
+/***************************************************************************
+
+ Inputs
+
+***************************************************************************/
+
+static INPUT_PORTS_START( stuntair )
+ PORT_START("DSWB") // the bit order is scrambled, but this matches the text above
+ PORT_DIPNAME( 0x18, 0x00, DEF_STR( Coin_A ) ) PORT_DIPLOCATION("SWB:2,1")
+ PORT_DIPSETTING( 0x08, DEF_STR( 2C_1C ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( 1C_1C ) )
+ PORT_DIPSETTING( 0x18, "1 Coin/1 Credit - 2 Coins/3 Credits" )
+ PORT_DIPSETTING( 0x10, DEF_STR( 1C_2C ) )
+ PORT_DIPNAME( 0x24, 0x00, DEF_STR( Coin_B ) ) PORT_DIPLOCATION("SWB:4,3")
+ PORT_DIPSETTING( 0x04, DEF_STR( 2C_1C ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( 1C_1C ) )
+ PORT_DIPSETTING( 0x24, "1 Coin/1 Credit - 2 Coins/3 Credits" )
+ PORT_DIPSETTING( 0x20, DEF_STR( 1C_2C ) )
+ PORT_DIPNAME( 0x42, 0x40, DEF_STR( Bonus_Life ) ) PORT_DIPLOCATION("SWB:6,5")
+ PORT_DIPSETTING( 0x00, "10000 20000" )
+ PORT_DIPSETTING( 0x40, "20000 30000" )
+ PORT_DIPSETTING( 0x02, "30000 50000" )
+ PORT_DIPSETTING( 0x42, "50000 100000" )
+ PORT_DIPNAME( 0x81, 0x80, "Lives" ) PORT_DIPLOCATION("SWB:8,7")
+ PORT_DIPSETTING( 0x00, "2" )
+ PORT_DIPSETTING( 0x80, "3" )
+ PORT_DIPSETTING( 0x01, "4" )
+ PORT_DIPSETTING( 0x81, "5" )
+
+ PORT_START("DSWA") // the bit order is scrambled, not sure if the dip locations are correct
+ PORT_DIPUNKNOWN_DIPLOC( 0x10, 0x10, "SWA:1" ) // test related? $05c7
+ PORT_DIPNAME( 0x28, 0x08, DEF_STR( Difficulty ) ) PORT_DIPLOCATION("SWA:2,3") // $298f
+ PORT_DIPSETTING( 0x00, DEF_STR( Easy ) )
+ PORT_DIPSETTING( 0x08, DEF_STR( Normal ) )
+ PORT_DIPSETTING( 0x20, DEF_STR( Hard ) )
+ PORT_DIPSETTING( 0x28, DEF_STR( Hardest ) )
+ PORT_DIPNAME( 0x04, 0x00, "Infinite Lives (Cheat)" ) PORT_DIPLOCATION("SWA:4") // $3f49
+ PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x04, DEF_STR( On ) )
+ PORT_DIPUNUSED_DIPLOC( 0x40, 0x40, "SWA:5" ) // not accessed in game code
+ PORT_DIPUNUSED_DIPLOC( 0x02, 0x02, "SWA:6" ) // "
+ PORT_DIPUNUSED_DIPLOC( 0x80, 0x80, "SWA:7" ) // "
+ PORT_DIPUNUSED_DIPLOC( 0x01, 0x01, "SWA:8" ) // "
+
+ PORT_START("IN2")
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_BUTTON1 )
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_BUTTON2 )
+ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT )
+ PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_JOYSTICK_UP )
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN )
+ PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT )
+
+ PORT_START("IN3")
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_START1 )
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_START2 )
+ PORT_DIPNAME( 0x04, 0x04, "Clear Credits on Reset" ) // I doubt this is a real switch
+ PORT_DIPSETTING( 0x04, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_COIN1 )
+ PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_COIN2 )
+ PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNKNOWN )
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )
+ PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )
+INPUT_PORTS_END
+
+
+
+/***************************************************************************
+
+ GFX Layouts
+
+***************************************************************************/
+
+static const gfx_layout tiles8x8_layout =
+{
+ 8,8,
+ RGN_FRAC(1,1),
+ 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
+};
+
+static const gfx_layout tiles8x8x2_layout =
+{
+ 8,8,
+ RGN_FRAC(1,2),
+ 2,
+ { RGN_FRAC(0,2), RGN_FRAC(1,2) },
+ { 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
+};
+
+static const gfx_layout tiles16x8x2_layout =
+{
+ 16,16,
+ RGN_FRAC(1,2),
+ 2,
+ { RGN_FRAC(0,2), RGN_FRAC(1,2) },
+ { 0, 1, 2, 3, 4, 5, 6, 7,64,65,66,67,68,69,70,71 },
+ { 0*8,1*8,2*8,3*8,4*8,5*8,6*8,7*8, 128+0*8, 128+1*8, 128+2*8, 128+3*8, 128+4*8, 128+5*8, 128+6*8, 128+7*8 },
+ 16*16
+};
+
+
+static GFXDECODE_START( stuntair )
+ GFXDECODE_ENTRY( "gfx1", 0, tiles8x8_layout, 0x100, 1 )
+ GFXDECODE_ENTRY( "gfx2", 0, tiles8x8x2_layout, 0xe0, 8 )
+ GFXDECODE_ENTRY( "gfx3", 0, tiles16x8x2_layout, 0xe0, 8 )
+GFXDECODE_END
+
+
+
+/***************************************************************************
+
+ AY8910 Config
+
+***************************************************************************/
+
+WRITE8_MEMBER(stuntair_state::ay8910_portb_w)
+{
+ // it writes $e8 and $f0 for music drums?
+ // possibly to discrete sound circuitry?
+ logerror("ay8910_portb_w: %02x\n", data);
+}
+
+/***************************************************************************
+
+ Machine Config
+
+***************************************************************************/
+
+INTERRUPT_GEN_MEMBER(stuntair_state::stuntair_irq)
+{
+ if(m_nmi_enable)
+ m_maincpu->set_input_line(INPUT_LINE_NMI, ASSERT_LINE);
+}
+
+void stuntair_state::machine_start()
+{
+ m_bg_xscroll = 0;
+ m_nmi_enable = 0;
+ m_spritebank0 = 0;
+ m_spritebank1 = 0;
+
+ save_item(NAME(m_bg_xscroll));
+ save_item(NAME(m_nmi_enable));
+ save_item(NAME(m_spritebank0));
+ save_item(NAME(m_spritebank1));
+}
+
+void stuntair_state::machine_reset()
+{
+}
+
+static MACHINE_CONFIG_START( stuntair, stuntair_state )
+
+ /* basic machine hardware */
+ MCFG_CPU_ADD("maincpu", Z80, XTAL_18_432MHz/6) /* 3 MHz? */
+ MCFG_CPU_PROGRAM_MAP(stuntair_map)
+ MCFG_CPU_VBLANK_INT_DRIVER("screen", stuntair_state, stuntair_irq)
+
+ MCFG_CPU_ADD("audiocpu", Z80, XTAL_18_432MHz/6) /* 3 MHz? */
+ MCFG_CPU_PROGRAM_MAP(stuntair_sound_map)
+ MCFG_CPU_IO_MAP(stuntair_sound_portmap)
+ MCFG_CPU_PERIODIC_INT_DRIVER(stuntair_state, irq0_line_hold, 420) // drives music tempo, timing is approximate based on PCB audio recording.. and where is irq ack?
+
+ /* video hardware */
+ MCFG_SCREEN_ADD("screen", RASTER)
+ MCFG_SCREEN_REFRESH_RATE(60) // ?
+ MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
+ MCFG_SCREEN_SIZE(256, 256)
+ MCFG_SCREEN_VISIBLE_AREA(0, 256-1, 16, 256-16-1)
+ MCFG_SCREEN_UPDATE_DRIVER(stuntair_state, screen_update_stuntair)
+ MCFG_SCREEN_PALETTE("palette")
+
+ MCFG_GFXDECODE_ADD("gfxdecode", "palette", stuntair)
+ MCFG_PALETTE_ADD("palette", 0x100+2)
+
+ MCFG_PALETTE_INIT_OWNER(stuntair_state, stuntair)
+
+ /* sound hardware */
+ MCFG_SPEAKER_STANDARD_MONO("mono") // stereo?
+
+ MCFG_SOUND_ADD("ay1", AY8910, XTAL_18_432MHz/12)
+ MCFG_AY8910_PORT_A_READ_CB(READ8(driver_device, soundlatch_byte_r))
+ MCFG_AY8910_PORT_B_WRITE_CB(WRITE8(stuntair_state, ay8910_portb_w))
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
+
+ MCFG_SOUND_ADD("ay2", AY8910, XTAL_18_432MHz/12)
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
+MACHINE_CONFIG_END
+
+
+
+/***************************************************************************
+
+ Game drivers
+
+***************************************************************************/
+
+ROM_START( stuntair )
+ ROM_REGION( 0x10000, "maincpu", 0 )
+ ROM_LOAD( "stuntair.a0", 0x0000, 0x2000, CRC(f61c4a1d) SHA1(29a227b447866e27e7619a0a676c9ad66364c323) )
+ ROM_LOAD( "stuntair.a1", 0x2000, 0x2000, CRC(1546f041) SHA1(6a2346edf39700f7b1e609f19e0f2e46b3a78a2a) )
+ ROM_LOAD( "stuntair.a3", 0x4000, 0x2000, CRC(63d00b97) SHA1(63efa151147a3c0ac33e226d38aecfd06b36ad38) )
+ ROM_LOAD( "stuntair.a4", 0x6000, 0x2000, CRC(01fe2697) SHA1(f7efc6af8047245ad92dff0e62f61abc71a2e9d1) )
+ ROM_LOAD( "stuntair.a6", 0x8000, 0x2000, CRC(6704d05c) SHA1(5b1af8be86ffc44ae0207397b33769556ab456df) )
+
+ ROM_REGION( 0x2000, "audiocpu", 0 )
+ ROM_LOAD( "stuntair.e14", 0x0000, 0x2000, CRC(641fc9db) SHA1(959a4b6617f840f52d1856e12a9fad8e12293387) )
+
+ ROM_REGION( 0x2000, "gfx1", 0 )
+ ROM_LOAD( "stuntair.a9", 0x0000, 0x2000, CRC(bfd861f5) SHA1(ff089ec2e98b21202aeefc31158961e3b1d1ccca) )
+
+ ROM_REGION( 0x4000, "gfx2", 0 )
+ ROM_LOAD( "stuntair.a11", 0x0000, 0x2000, CRC(421fef4c) SHA1(e46abead8cd44253cf6da74326f6f3bdd3aa26e5) )
+ ROM_LOAD( "stuntair.a12", 0x2000, 0x2000, CRC(e6ee7489) SHA1(6eeea137fc8968e84d2aadbbac982fd9cd161b16) )
+
+ ROM_REGION( 0x4000, "gfx3", 0 )
+ ROM_LOAD( "stuntair.a13", 0x0000, 0x2000, CRC(bfdc0d38) SHA1(ea0a22971e9cf1b1682c35facc9c4e30607faed7) )
+ ROM_LOAD( "stuntair.a15", 0x2000, 0x2000, CRC(4531cab5) SHA1(35271555377ec3454a5d74bf8c21d7e8acc05782) )
+
+ ROM_REGION( 0x120, "proms", 0 )
+ ROM_LOAD_NIB_LOW ( "dm74s287n.11m", 0x000, 0x100, CRC(d330ff90) SHA1(e223935464109a3c4c7b29641b3736484c22c47a) ) // only the last few entries are used?
+ ROM_LOAD_NIB_HIGH( "dm74s287n.11l", 0x000, 0x100, CRC(6c98f964) SHA1(abf7bdeccd33e62fa106d2056d1949cf278483a7) ) // "
+ ROM_LOAD_NIB_LOW ( "dm74s288n.7a", 0x100, 0x020, CRC(5779e751) SHA1(89c955ef8635ad3e9d699f33ec0e4d6c9205d01c) ) // ?
+ROM_END
+
+
+GAME( 1983, stuntair, 0, stuntair, stuntair, driver_device, 0, ROT90, "Nuova Videotron", "Stunt Air", MACHINE_SUPPORTS_SAVE | MACHINE_IMPERFECT_COLORS | MACHINE_IMPERFECT_GRAPHICS | MACHINE_IMPERFECT_SOUND )