/***************************************************************************
-= American Speedway =-
driver by Luca Elia (l.elia@tin.it)
CPU : Z80A x 2
Sound: YM2151
(c)1987 Enerdyne Technologies, Inc. / PGD
***************************************************************************/
#include "driver.h"
#include "sound/2151intf.h"
/* Variables & functions defined in video: */
WRITE8_HANDLER( amspdwy_videoram_w );
WRITE8_HANDLER( amspdwy_colorram_w );
WRITE8_HANDLER( amspdwy_paletteram_w );
WRITE8_HANDLER( amspdwy_flipscreen_w );
VIDEO_START( amspdwy );
VIDEO_UPDATE( amspdwy );
/***************************************************************************
Main CPU
***************************************************************************/
/*
765----- Buttons
---4---- Sgn(Wheel Delta)
----3210 Abs(Wheel Delta)
Or last value when wheel delta = 0
*/
#define AMSPDWY_WHEEL_R( _n_ ) \
READ8_HANDLER( amspdwy_wheel_##_n_##_r ) \
{ \
static UINT8 wheel_old, ret; \
UINT8 wheel = readinputport(5 + _n_); \
if (wheel != wheel_old) \
{ \
wheel = (wheel & 0x7fff) - (wheel & 0x8000); \
if (wheel > wheel_old) ret = ((+wheel) & 0xf) | 0x00; \
else ret = ((-wheel) & 0xf) | 0x10; \
wheel_old = wheel; \
} \
return ret | readinputport(2 + _n_); \
}
AMSPDWY_WHEEL_R( 0 )
AMSPDWY_WHEEL_R( 1 )
static READ8_HANDLER( amspdwy_sound_r )
{
return (YM2151_status_port_0_r(0) & ~ 0x30) | readinputport(4);
}
static WRITE8_HANDLER( amspdwy_sound_w )
{
soundlatch_w(0,data);
cpunum_set_input_line(1, INPUT_LINE_NMI, PULSE_LINE);
}
static ADDRESS_MAP_START( amspdwy_readmem, ADDRESS_SPACE_PROGRAM, 8 )
AM_RANGE(0x0000, 0x7fff) AM_READ(MRA8_ROM ) // ROM
// AM_RANGE(0x8000, 0x801f) AM_READ(MRA8_RAM ) // Palette
AM_RANGE(0x9000, 0x93ff) AM_READ(videoram_r ) // Layer
AM_RANGE(0x9400, 0x97ff) AM_READ(videoram_r ) // Mirror?
AM_RANGE(0x9800, 0x9bff) AM_READ(colorram_r ) // Layer
AM_RANGE(0x9c00, 0x9fff) AM_READ(MRA8_RAM ) // Unused?
AM_RANGE(0xa000, 0xa000) AM_READ(input_port_0_r ) // DSW 1
AM_RANGE(0xa400, 0xa400) AM_READ(input_port_1_r ) // DSW 2
AM_RANGE(0xa800, 0xa800) AM_READ(amspdwy_wheel_0_r ) // Player 1
AM_RANGE(0xac00, 0xac00) AM_READ(amspdwy_wheel_1_r ) // Player 2
AM_RANGE(0xb400, 0xb400) AM_READ(amspdwy_sound_r ) // YM2151 Status + Buttons
AM_RANGE(0xc000, 0xc0ff) AM_READ(MRA8_RAM ) // Sprites
AM_RANGE(0xe000, 0xe7ff) AM_READ(MRA8_RAM ) // Work RAM
ADDRESS_MAP_END
static ADDRESS_MAP_START( amspdwy_writemem, ADDRESS_SPACE_PROGRAM, 8 )
AM_RANGE(0x0000, 0x7fff) AM_WRITE(MWA8_ROM ) // ROM
AM_RANGE(0x8000, 0x801f) AM_WRITE(amspdwy_paletteram_w) AM_BASE(&paletteram ) // Palette
AM_RANGE(0x9000, 0x93ff) AM_WRITE(amspdwy_videoram_w) AM_BASE(&videoram ) // Layer
AM_RANGE(0x9400, 0x97ff) AM_WRITE(amspdwy_videoram_w ) // Mirror?
AM_RANGE(0x9800, 0x9bff) AM_WRITE(amspdwy_colorram_w) AM_BASE(&colorram ) // Layer
AM_RANGE(0x9c00, 0x9fff) AM_WRITE(MWA8_RAM ) // Unused?
// AM_RANGE(0xa000, 0xa000) AM_WRITE(MWA8_NOP ) // ?
AM_RANGE(0xa400, 0xa400) AM_WRITE(amspdwy_flipscreen_w ) // Toggle Flip Screen?
AM_RANGE(0xb000, 0xb000) AM_WRITE(MWA8_NOP ) // ? Exiting IRQ
AM_RANGE(0xb400, 0xb400) AM_WRITE(amspdwy_sound_w ) // To Sound CPU
AM_RANGE(0xc000, 0xc0ff) AM_WRITE(MWA8_RAM) AM_BASE(&spriteram) AM_SIZE(&spriteram_size ) // Sprites
AM_RANGE(0xe000, 0xe7ff) AM_WRITE(MWA8_RAM ) // Work RAM
ADDRESS_MAP_END
static READ8_HANDLER( amspdwy_port_r )
{
UINT8 *Tracks = memory_region(REGION_CPU1)+0x10000;
return Tracks[offset];
}
static ADDRESS_MAP_START( amspdwy_readport, ADDRESS_SPACE_IO, 8 )
AM_RANGE(0x0000, 0x7fff) AM_READ(amspdwy_port_r )
ADDRESS_MAP_END
/***************************************************************************
Sound CPU
***************************************************************************/
static ADDRESS_MAP_START( amspdwy_sound_readmem, ADDRESS_SPACE_PROGRAM, 8 )
AM_RANGE(0x0000, 0x7fff) AM_READ(MRA8_ROM ) // ROM
AM_RANGE(0x9000, 0x9000) AM_READ(soundlatch_r ) // From Main CPU
AM_RANGE(0xc000, 0xdfff) AM_READ(MRA8_RAM ) // Work RAM
AM_RANGE(0xffff, 0xffff) AM_READ(MRA8_NOP ) // ??? IY = FFFF at the start ?
ADDRESS_MAP_END
static ADDRESS_MAP_START( amspdwy_sound_writemem, ADDRESS_SPACE_PROGRAM, 8 )
AM_RANGE(0x0000, 0x7fff) AM_WRITE(MWA8_ROM ) // ROM
// AM_RANGE(0x8000, 0x8000) AM_WRITE(MWA8_NOP ) // ? Written with 0 at the start
AM_RANGE(0xa000, 0xa000) AM_WRITE(YM2151_register_port_0_w ) // YM2151
AM_RANGE(0xa001, 0xa001) AM_WRITE(YM2151_data_port_0_w ) //
AM_RANGE(0xc000, 0xdfff) AM_WRITE(MWA8_RAM ) // Work RAM
ADDRESS_MAP_END
/***************************************************************************
Input Ports
***************************************************************************/
static INPUT_PORTS_START( amspdwy )
PORT_START_TAG("DSW1")
PORT_DIPNAME( 0x01, 0x00, "Character Test" )
PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
PORT_DIPSETTING( 0x01, DEF_STR( On ) )
PORT_DIPNAME( 0x02, 0x00, "Show Arrows" )
PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
PORT_DIPSETTING( 0x02, DEF_STR( On ) )
PORT_DIPNAME( 0x04, 0x04, DEF_STR( Demo_Sounds ) )
PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
PORT_DIPSETTING( 0x04, DEF_STR( On ) )
PORT_SERVICE( 0x08, IP_ACTIVE_HIGH )
PORT_DIPNAME( 0x10, 0x00, "Steering Test" )
PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
PORT_DIPSETTING( 0x10, DEF_STR( On ) )
PORT_DIPUNUSED( 0x20, IP_ACTIVE_HIGH )
PORT_DIPUNUSED( 0x40, IP_ACTIVE_HIGH )
PORT_DIPUNUSED( 0x80, IP_ACTIVE_HIGH )
PORT_START_TAG("DSW2")
PORT_DIPNAME( 0x03, 0x00, DEF_STR( Coinage ) )
PORT_DIPSETTING( 0x03, DEF_STR( 2C_1C ) )
// PORT_DIPSETTING( 0x02, DEF_STR( 1C_1C ) )
PORT_DIPSETTING( 0x00, DEF_STR( 1C_1C ) )
PORT_DIPSETTING( 0x01, DEF_STR( 1C_2C ) )
PORT_DIPNAME( 0x0c, 0x00, DEF_STR( Difficulty ) )
PORT_DIPSETTING( 0x00, DEF_STR( Easy ) )
PORT_DIPSETTING( 0x04, DEF_STR( Normal ) )
PORT_DIPSETTING( 0x08, DEF_STR( Hard ) )
PORT_DIPSETTING( 0x0c, DEF_STR( Hardest ) )
PORT_DIPNAME( 0x30, 0x00, "Time" ) /* code at 0x1770 */
PORT_DIPSETTING( 0x30, "20 sec" )
PORT_DIPSETTING( 0x20, "30 sec" )
PORT_DIPSETTING( 0x10, "45 sec" )
PORT_DIPSETTING( 0x00, "60 sec" )
PORT_DIPUNUSED( 0x40, IP_ACTIVE_HIGH )
PORT_DIPUNUSED( 0x80, IP_ACTIVE_HIGH )
PORT_START_TAG("IN2") // Player 1 Wheel + Coins
PORT_BIT( 0x1f, IP_ACTIVE_HIGH, IPT_SPECIAL ) // wheel
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_COIN1 ) PORT_IMPULSE(2) // 2-3f
PORT_START_TAG("IN3") // Player 2 Wheel + Coins
PORT_BIT( 0x1f, IP_ACTIVE_HIGH, IPT_SPECIAL )
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_COIN2 ) PORT_IMPULSE(2)
PORT_START_TAG("IN4") // Player 1&2 Pedals + YM2151 Sound Status
PORT_BIT( 0x0f, IP_ACTIVE_HIGH, IPT_SPECIAL )
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2)
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(1)
PORT_BIT( 0xc0, IP_ACTIVE_HIGH, IPT_SPECIAL )
PORT_START_TAG("IN5") // Player 1 Analog Fake Port
PORT_BIT( 0xffff, 0x0000, IPT_DIAL ) PORT_SENSITIVITY(15) PORT_KEYDELTA(20) PORT_CODE_DEC(KEYCODE_LEFT) PORT_CODE_INC(KEYCODE_RIGHT) PORT_PLAYER(1)
PORT_START_TAG("IN6") // Player 2 Analog Fake Port
PORT_BIT( 0xffff, 0x0000, IPT_DIAL ) PORT_SENSITIVITY(15) PORT_KEYDELTA(20) PORT_CODE_DEC(KEYCODE_D) PORT_CODE_INC(KEYCODE_G) PORT_PLAYER(2)
INPUT_PORTS_END
static INPUT_PORTS_START( amspdwya )
PORT_INCLUDE(amspdwy)
PORT_MODIFY("DSW2")
PORT_DIPNAME( 0x10, 0x00, "Time" ) /* code at 0x2696 */
PORT_DIPSETTING( 0x10, "45 sec" )
PORT_DIPSETTING( 0x00, "60 sec" )
PORT_DIPUNUSED( 0x20, IP_ACTIVE_HIGH )
INPUT_PORTS_END
/***************************************************************************
Graphics Layouts
***************************************************************************/
static const gfx_layout layout_8x8x2 =
{
8,8,
RGN_FRAC(1,2),
2,
{ RGN_FRAC(0,2), RGN_FRAC(1,2) },
{ STEP8(0,1) },
{ STEP8(0,8) },
8*8
};
static GFXDECODE_START( amspdwy )
GFXDECODE_ENTRY( REGION_GFX1, 0, layout_8x8x2, 0, 8 ) // [0] Layer & Sprites
GFXDECODE_END
/***************************************************************************
Machine Drivers
***************************************************************************/
static void irq_handler(int irq)
{
cpunum_set_input_line(1,0,irq ? ASSERT_LINE : CLEAR_LINE);
}
static struct YM2151interface amspdwy_ym2151_interface =
{
irq_handler
};
static MACHINE_DRIVER_START( amspdwy )
/* basic machine hardware */
MDRV_CPU_ADD(Z80,3000000)
MDRV_CPU_PROGRAM_MAP(amspdwy_readmem,amspdwy_writemem)
MDRV_CPU_IO_MAP(amspdwy_readport,0)
MDRV_CPU_VBLANK_INT(irq0_line_hold,1) /* IRQ: 60Hz, NMI: retn */
MDRV_CPU_ADD(Z80,3000000) /* Can't be disabled: the YM2151 timers must work */
MDRV_CPU_PROGRAM_MAP(amspdwy_sound_readmem,amspdwy_sound_writemem)
MDRV_SCREEN_REFRESH_RATE(60)
MDRV_SCREEN_VBLANK_TIME(DEFAULT_60HZ_VBLANK_DURATION)
/* video hardware */
MDRV_VIDEO_ATTRIBUTES(VIDEO_TYPE_RASTER)
MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
MDRV_SCREEN_SIZE(256, 256)
MDRV_SCREEN_VISIBLE_AREA(0, 256-1, 0+16, 256-16-1)
MDRV_GFXDECODE(amspdwy)
MDRV_PALETTE_LENGTH(32)
MDRV_VIDEO_START(amspdwy)
MDRV_VIDEO_UPDATE(amspdwy)
/* sound hardware */
MDRV_SPEAKER_STANDARD_STEREO("left", "right")
MDRV_SOUND_ADD(YM2151, 3000000)
MDRV_SOUND_CONFIG(amspdwy_ym2151_interface)
MDRV_SOUND_ROUTE(0, "left", 1.0)
MDRV_SOUND_ROUTE(1, "right", 1.0)
MACHINE_DRIVER_END
/***************************************************************************
ROMs Loading
***************************************************************************/
/***************************************************************************
American Speedway
USES TWO Z80 CPU'S W/YM2151 SOUND
THE NUMBERS WITH THE NAMES ARE PROBABLY CHECKSUMS
NAME LOCATION TYPE
------------------------
AUDI9363 U2 27256 CONN BD
GAME5807 U33 " "
TRKS6092 U34 " "
HIHIE12A 4A 2732 REAR BD
HILO9B3C 5A " "
LOHI4644 2A " "
LOLO1D51 1A " "
American Speedway (Set 2)
1987 Enerdyne Technologies, Inc. Has Rev 4 PGD written on the top board.
Processors
------------------
Dual Z80As
YM2151 (sound)
RAM
------------------
12 2114
5 82S16N
Eproms
==================
Name Loc TYpe Checksum
---------- ---- ----- --------
Game.u22 U33 27256 A222
Tracks.u34 U34 27256 6092
Audio.U02 U2 27256 9363
LOLO1.1A 1A 2732 1D51
LOHI.2A 2A 2732 4644
HIHI.4A 3/4A 2732 E12A
HILO.5A 5A 2732 9B3C
***************************************************************************/
ROM_START( amspdwy )
ROM_REGION( 0x18000, REGION_CPU1, 0 ) /* Main Z80 Code */
ROM_LOAD( "game5807.u33", 0x00000, 0x8000, CRC(88233b59) SHA1(bfdf10dde1731cde5c579a9a5173cafe9295a80c) )
ROM_LOAD( "trks6092.u34", 0x10000, 0x8000, CRC(74a4e7b7) SHA1(b4f6e3faaf048351c6671205f52378a64b81bcb1) )
ROM_REGION( 0x10000, REGION_CPU2, 0 ) /* Sound Z80 Code */
ROM_LOAD( "audi9463.u2", 0x00000, 0x8000, CRC(61b0467e) SHA1(74509e7712838dd760919893aeda9241d308d0c3) )
ROM_REGION( 0x4000, REGION_GFX1, ROMREGION_DISPOSE ) /* Layer + Sprites */
ROM_LOAD( "hilo9b3c.5a", 0x0000, 0x1000, CRC(f50f864c) SHA1(5b2412c1558b30a04523fcdf1d5cf6fdae1ba88d) )
ROM_LOAD( "hihie12a.4a", 0x1000, 0x1000, CRC(3d7497f3) SHA1(34820ba42d9c9dab1d6fdda15795450ce08392c1) )
ROM_LOAD( "lolo1d51.1a", 0x2000, 0x1000, CRC(58701c1c) SHA1(67b476e697652a6b684bd76ae6c0078ed4b3e3a2) )
ROM_LOAD( "lohi4644.2a", 0x3000, 0x1000, CRC(a1d802b1) SHA1(1249ce406b1aa518885a02ab063fa14906ccec2e) )
ROM_END
ROM_START( amspdwya )
ROM_REGION( 0x18000, REGION_CPU1, 0 ) /* Main Z80 Code */
ROM_LOAD( "game.u33", 0x00000, 0x8000, CRC(facab102) SHA1(e232969eaaad8b89ac8e28ee0a7996107a7de9a2) )
ROM_LOAD( "trks6092.u34", 0x10000, 0x8000, CRC(74a4e7b7) SHA1(b4f6e3faaf048351c6671205f52378a64b81bcb1) )
ROM_REGION( 0x10000, REGION_CPU2, 0 ) /* Sound Z80 Code */
ROM_LOAD( "audi9463.u2", 0x00000, 0x8000, CRC(61b0467e) SHA1(74509e7712838dd760919893aeda9241d308d0c3) )
ROM_REGION( 0x4000, REGION_GFX1, ROMREGION_DISPOSE ) /* Layer + Sprites */
ROM_LOAD( "hilo9b3c.5a", 0x0000, 0x1000, CRC(f50f864c) SHA1(5b2412c1558b30a04523fcdf1d5cf6fdae1ba88d) )
ROM_LOAD( "hihie12a.4a", 0x1000, 0x1000, CRC(3d7497f3) SHA1(34820ba42d9c9dab1d6fdda15795450ce08392c1) )
ROM_LOAD( "lolo1d51.1a", 0x2000, 0x1000, CRC(58701c1c) SHA1(67b476e697652a6b684bd76ae6c0078ed4b3e3a2) )
ROM_LOAD( "lohi4644.2a", 0x3000, 0x1000, CRC(a1d802b1) SHA1(1249ce406b1aa518885a02ab063fa14906ccec2e) )
ROM_END
/* (C) 1987 ETI 8402 MAGNOLIA ST. #C SANTEE, CA 92071 */
GAME( 1987, amspdwy, 0, amspdwy, amspdwy, 0, ROT0, "Enerdyne Technologies, Inc.", "American Speedway (set 1)", 0 )
GAME( 1987, amspdwya, amspdwy, amspdwy, amspdwya, 0, ROT0, "Enerdyne Technologies, Inc.", "American Speedway (set 2)", 0 )