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// license:BSD-3-Clause
// copyright-holders:Tomasz Slanina
/***********************************
Super Speed Race Jr (c) 1985 Taito
driver by Tomasz Slanina
TODO:
- colors (missing proms)
- dips
- controls (is there START button ?)
- when a car sprite goes outside of the screen it gets stuck for a split frame on top of screen
HW info :
0000-7fff ROM
c000-dfff VRAM ( 4 tilemaps (4 x $800) )
e000-e7ff RAM
e800-efff SCROLL RAM
f003 ??
f400-f401 AY 8910
fc00 ??
f800 ??
Scroll RAM contains x and y offsets for each tileline,
as well as other data (priorities ? additional flags ?)
All moving objects (cars, etc) are displayed on tilemap 3.
------------------------------------
Cheat : $e210 - timer
************************************/
#include "emu.h"
#include "includes/ssrj.h"
#include "cpu/z80/z80.h"
#include "sound/ay8910.h"
#include "screen.h"
#include "speaker.h"
void ssrj_state::machine_start()
{
save_item(NAME(m_oldport));
}
void ssrj_state::machine_reset()
{
uint8_t *rom = memregion("maincpu")->base();
memset(&rom[0xc000], 0 ,0x3fff); /* req for some control types */
m_oldport = 0x80;
}
READ8_MEMBER(ssrj_state::wheel_r)
{
int port = ioport("IN1")->read() - 0x80;
int retval = port - m_oldport;
m_oldport = port;
return retval;
}
void ssrj_state::ssrj_map(address_map &map)
{
map(0x0000, 0x7fff).rom();
map(0xc000, 0xc7ff).ram().w(this, FUNC(ssrj_state::vram1_w)).share("vram1");
map(0xc800, 0xcfff).ram().w(this, FUNC(ssrj_state::vram2_w)).share("vram2");
map(0xd000, 0xd7ff).ram().share("vram3");
map(0xd800, 0xdfff).ram().w(this, FUNC(ssrj_state::vram4_w)).share("vram4");
map(0xe000, 0xe7ff).ram();
map(0xe800, 0xefff).ram().share("scrollram");
map(0xf000, 0xf000).portr("IN0");
map(0xf001, 0xf001).r(this, FUNC(ssrj_state::wheel_r));
map(0xf002, 0xf002).portr("IN2");
map(0xf003, 0xf003).nopw(); /* unknown */
map(0xf401, 0xf401).r("aysnd", FUNC(ay8910_device::data_r));
map(0xf400, 0xf401).w("aysnd", FUNC(ay8910_device::address_data_w));
map(0xf800, 0xf800).nopw(); /* wheel ? */
map(0xfc00, 0xfc00).nopw(); /* unknown */
}
static INPUT_PORTS_START( ssrj )
PORT_START("IN0")
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_COIN1 )
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_COIN2 )
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_TILT )
PORT_BIT( 0xe0, 0x00, IPT_PEDAL ) PORT_MINMAX(0,0xe0) PORT_SENSITIVITY(50) PORT_KEYDELTA(0x20)
PORT_START("IN1")
PORT_BIT( 0xff, 0x00, IPT_DIAL ) PORT_SENSITIVITY(50) PORT_KEYDELTA(4) PORT_REVERSE
PORT_START("IN2")
PORT_BIT( 0xf, IP_ACTIVE_LOW, IPT_BUTTON2 ) /* code @ $eef , tested when controls = type4 */
PORT_DIPNAME( 0x30, 0x00, DEF_STR( Difficulty ) ) /* ??? code @ $62c */
PORT_DIPSETTING( 0x10, DEF_STR( Easy ) )
PORT_DIPSETTING( 0x00, DEF_STR( Normal ) )
PORT_DIPSETTING( 0x20, DEF_STR( Difficult ) )
PORT_DIPSETTING( 0x30, DEF_STR( Very_Difficult ) )
PORT_DIPNAME( 0x40, 0x40, DEF_STR( Free_Play ) )
PORT_DIPSETTING( 0x40, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x80, 0x80, "No Hit" )
PORT_DIPSETTING( 0x80, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_START("IN3")
PORT_DIPNAME( 0x07, 0x00, DEF_STR( Coinage ) )
PORT_DIPSETTING( 0x07, DEF_STR( 4C_1C ) )
PORT_DIPSETTING( 0x06, DEF_STR( 3C_1C ) )
PORT_DIPSETTING( 0x05, DEF_STR( 2C_1C ) )
PORT_DIPSETTING( 0x00, DEF_STR( 1C_1C ) )
PORT_DIPSETTING( 0x01, DEF_STR( 1C_2C ) )
PORT_DIPSETTING( 0x02, DEF_STR( 1C_3C ) )
PORT_DIPSETTING( 0x03, DEF_STR( 1C_4C ) )
PORT_DIPNAME( 0x08, 0x08, "Freeze" )
PORT_DIPSETTING( 0x08, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x30, 0x00, DEF_STR( Controls ) ) /* 'press button to start' message, and wait for button2 */
PORT_DIPSETTING( 0x00, "Type 1" )
PORT_DIPSETTING( 0x10, "Type 2" )
PORT_DIPSETTING( 0x20, "Type 3" )
PORT_DIPSETTING( 0x30, "Type 4" )
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN ) /* sometimes hangs after game over ($69b) */
INPUT_PORTS_END
static const gfx_layout charlayout =
{
8,8, /* 8*8 characters */
RGN_FRAC(1,3), /* 1024 characters */
3, /* 3 bits per pixel */
{ 0, RGN_FRAC(2,3), RGN_FRAC(1,3) }, /* the bitplanes are separated */
{ 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 /* every char takes 8 consecutive bytes */
};
static GFXDECODE_START( ssrj )
GFXDECODE_ENTRY( "gfx1", 0, charlayout, 0, 0x10 )
GFXDECODE_END
MACHINE_CONFIG_START(ssrj_state::ssrj)
/* basic machine hardware */
MCFG_DEVICE_ADD("maincpu", Z80,8000000/2)
MCFG_DEVICE_PROGRAM_MAP(ssrj_map)
MCFG_DEVICE_VBLANK_INT_DRIVER("screen", ssrj_state, irq0_line_hold)
/* video hardware */
MCFG_SCREEN_ADD("screen", RASTER)
MCFG_SCREEN_REFRESH_RATE(60)
MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
MCFG_SCREEN_SIZE(40*8, 32*8)
MCFG_SCREEN_VISIBLE_AREA(0*8, 34*8-1, 1*8, 31*8-1) // unknown res
MCFG_SCREEN_UPDATE_DRIVER(ssrj_state, screen_update)
MCFG_SCREEN_VBLANK_CALLBACK(WRITELINE(*this, ssrj_state, screen_vblank))
MCFG_SCREEN_PALETTE("palette")
MCFG_GFXDECODE_ADD("gfxdecode", "palette", ssrj)
MCFG_PALETTE_ADD("palette", 128)
MCFG_PALETTE_INIT_OWNER(ssrj_state, ssrj)
/* sound hardware */
MCFG_SPEAKER_STANDARD_MONO("mono")
MCFG_DEVICE_ADD("aysnd", AY8910, 8000000/5)
MCFG_AY8910_PORT_B_READ_CB(IOPORT("IN3"))
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.30)
MACHINE_CONFIG_END
/***************************************************************************
Game driver(s)
***************************************************************************/
ROM_START( ssrj )
ROM_REGION( 0x10000, "maincpu", 0 )
ROM_LOAD( "a40-01.bin", 0x0000, 0x4000, CRC(1ff7dbff) SHA1(a9e676ee087141d62f880cd98e7748db1e6e9461) )
ROM_LOAD( "a40-02.bin", 0x4000, 0x4000, CRC(bbb36f9f) SHA1(9f85bac639d18ee932273a6c00b36ac969e69bb8) )
ROM_REGION( 0x6000, "gfx1", 0 )
ROM_LOAD( "a40-03.bin", 0x0000, 0x2000, CRC(3753182a) SHA1(3eda34f967563b11416344da87b7be46cbecff2b) )
ROM_LOAD( "a40-04.bin", 0x2000, 0x2000, CRC(96471816) SHA1(e24b690085602b8bde079e596c2879deab128c83) )
ROM_LOAD( "a40-05.bin", 0x4000, 0x2000, CRC(dce9169e) SHA1(2cdda1453b2913fad931788e1db0bc01ce923a04) )
ROM_REGION( 0x100, "proms", 0 )
ROM_LOAD( "proms", 0x0000, 0x0100, NO_DUMP )
ROM_END
GAME( 1985, ssrj, 0, ssrj, ssrj, ssrj_state, 0, ROT90, "Taito Corporation", "Super Speed Race Junior (Japan)", MACHINE_WRONG_COLORS | MACHINE_IMPERFECT_GRAPHICS | MACHINE_SUPPORTS_SAVE )
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