/****************************************************************************
Super Chase (c) 1992 Taito
Driver by Bryan McPhail & David Graves.
Board Info:
CPU board:
68000
68020
TC0570SPC (Taito custom)
TC0470LIN (Taito custom)
TC0510NIO (Taito custom)
TC0480SCP (Taito custom)
TC0650FDA (Taito custom)
ADC0809CCN
X2=26.686MHz
X1=40MHz
X3=32MHz
Sound board:
68000
68681
MB8421 (x2)
MB87078
Ensoniq 5510
Ensoniq 5505
(Acknowledgments and thanks to Richard Bush and the Raine team
for their preliminary Super Chase driver.)
***************************************************************************/
#include "driver.h"
#include "cpu/m68000/m68000.h"
#include "video/taitoic.h"
#include "audio/taitosnd.h"
#include "machine/eeprom.h"
#include "sound/es5506.h"
#include "includes/taito_f3.h"
#include "audio/taito_en.h"
VIDEO_START( superchs );
VIDEO_UPDATE( superchs );
static UINT16 coin_word;
static UINT32 *superchs_ram;
static UINT32 *shared_ram;
static int steer=0;
/*********************************************************************/
static READ16_HANDLER( shared_ram_r )
{
if ((offset&1)==0) return (shared_ram[offset/2]&0xffff0000)>>16;
return (shared_ram[offset/2]&0x0000ffff);
}
static WRITE16_HANDLER( shared_ram_w )
{
if ((offset&1)==0) {
if (ACCESSING_BITS_8_15)
shared_ram[offset/2]=(shared_ram[offset/2]&0x00ffffff)|((data&0xff00)<<16);
if (ACCESSING_BITS_0_7)
shared_ram[offset/2]=(shared_ram[offset/2]&0xff00ffff)|((data&0x00ff)<<16);
} else {
if (ACCESSING_BITS_8_15)
shared_ram[offset/2]=(shared_ram[offset/2]&0xffff00ff)|((data&0xff00)<< 0);
if (ACCESSING_BITS_0_7)
shared_ram[offset/2]=(shared_ram[offset/2]&0xffffff00)|((data&0x00ff)<< 0);
}
}
static WRITE32_HANDLER( cpua_ctrl_w )
{
/*
CPUA writes 0x00, 22, 72, f2 in that order.
f2 seems to be the standard in-game value.
..x...x.
.xxx..x.
xxxx..x.
is there an irq enable in the top nibble?
*/
if (ACCESSING_BITS_8_15)
{
cpunum_set_input_line(machine, 2, INPUT_LINE_RESET, (data &0x200) ? CLEAR_LINE : ASSERT_LINE);
if (data&0x8000) cpunum_set_input_line(machine, 0,3,HOLD_LINE); /* Guess */
}
if (ACCESSING_BITS_0_7)
{
/* Lamp control bits of some sort in the lsb */
}
}
static WRITE32_HANDLER( superchs_palette_w )
{
int a,r,g,b;
COMBINE_DATA(&paletteram32[offset]);
a = paletteram32[offset];
r = (a &0xff0000) >> 16;
g = (a &0xff00) >> 8;
b = (a &0xff);
palette_set_color(machine,offset,MAKE_RGB(r,g,b));
}
static READ32_HANDLER( superchs_input_r )
{
switch (offset)
{
case 0x00:
return input_port_read(machine, "INPUTS");
case 0x01:
return coin_word<<16;
}
return 0xffffffff;
}
static WRITE32_HANDLER( superchs_input_w )
{
#if 0
{
char t[64];
static UINT32 mem[2];
COMBINE_DATA(&mem[offset]);
sprintf(t,"%08x %08x",mem[0],mem[1]);
//popmessage(t);
}
#endif
switch (offset)
{
case 0x00:
{
if (ACCESSING_BITS_24_31) /* $300000 is watchdog */
{
watchdog_reset(machine);
}
if (ACCESSING_BITS_0_7)
{
eeprom_set_clock_line((data & 0x20) ? ASSERT_LINE : CLEAR_LINE);
eeprom_write_bit(data & 0x40);
eeprom_set_cs_line((data & 0x10) ? CLEAR_LINE : ASSERT_LINE);
return;
}
return;
}
/* there are 'vibration' control bits somewhere! */
case 0x01:
{
if (ACCESSING_BITS_24_31)
{
coin_lockout_w(0,~data & 0x01000000);
coin_lockout_w(1,~data & 0x02000000);
coin_counter_w(0, data & 0x04000000);
coin_counter_w(1, data & 0x08000000);
coin_word=(data >> 16) &0xffff;
}
}
}
}
static READ32_HANDLER( superchs_stick_r )
{
int fake = input_port_read(machine, "FAKE");
int accel;
if (!(fake &0x10)) /* Analogue steer (the real control method) */
{
steer = input_port_read(machine, "WHEEL");
}
else /* Digital steer, with smoothing - speed depends on how often stick_r is called */
{
int delta;
int goal = 0x80;
if (fake &0x04) goal = 0xff; /* pressing left */
if (fake &0x08) goal = 0x0; /* pressing right */
if (steer!=goal)
{
delta = goal - steer;
if (steer < goal)
{
if (delta >2) delta = 2;
}
else
{
if (delta < (-2)) delta = -2;
}
steer += delta;
}
}
/* Accelerator is an analogue input but the game treats it as digital (on/off) */
if (input_port_read(machine, "FAKE") & 0x1) /* pressing B1 */
accel = 0x0;
else
accel = 0xff;
/* Todo: Verify brake - and figure out other input */
return (steer << 24) | (accel << 16) | (input_port_read(machine, "SOUND") << 8) | input_port_read(machine, "UNKNOWN");
}
static WRITE32_HANDLER( superchs_stick_w )
{
/* This is guess work - the interrupts are in groups of 4, with each writing to a
different byte in this long word before the RTE. I assume all but the last
(top) byte cause an IRQ with the final one being an ACK. (Total guess but it works). */
if (mem_mask!=0xff000000)
cpunum_set_input_line(machine, 0,3,HOLD_LINE);
}
/***********************************************************
MEMORY STRUCTURES
***********************************************************/
static ADDRESS_MAP_START( superchs_readmem, ADDRESS_SPACE_PROGRAM, 32 )
AM_RANGE(0x000000, 0x0fffff) AM_READ(SMH_ROM)
AM_RANGE(0x100000, 0x11ffff) AM_READ(SMH_RAM) /* main CPUA ram */
AM_RANGE(0x140000, 0x141fff) AM_READ(SMH_RAM) /* Sprite ram */
AM_RANGE(0x180000, 0x18ffff) AM_READ(TC0480SCP_long_r)
AM_RANGE(0x1b0000, 0x1b002f) AM_READ(TC0480SCP_ctrl_long_r)
AM_RANGE(0x200000, 0x20ffff) AM_READ(SMH_RAM) /* Shared ram */
AM_RANGE(0x280000, 0x287fff) AM_READ(SMH_RAM) /* Palette ram */
AM_RANGE(0x2c0000, 0x2c07ff) AM_READ(SMH_RAM) /* Sound shared ram */
AM_RANGE(0x300000, 0x300007) AM_READ(superchs_input_r)
AM_RANGE(0x340000, 0x340003) AM_READ(superchs_stick_r) /* stick coord read */
ADDRESS_MAP_END
static ADDRESS_MAP_START( superchs_writemem, ADDRESS_SPACE_PROGRAM, 32 )
AM_RANGE(0x000000, 0x0fffff) AM_WRITE(SMH_ROM)
AM_RANGE(0x100000, 0x11ffff) AM_WRITE(SMH_RAM) AM_BASE(&superchs_ram)
AM_RANGE(0x140000, 0x141fff) AM_WRITE(SMH_RAM) AM_BASE(&spriteram32) AM_SIZE(&spriteram_size)
AM_RANGE(0x180000, 0x18ffff) AM_WRITE(TC0480SCP_long_w)
AM_RANGE(0x1b0000, 0x1b002f) AM_WRITE(TC0480SCP_ctrl_long_w)
AM_RANGE(0x200000, 0x20ffff) AM_WRITE(SMH_RAM) AM_BASE(&shared_ram)
AM_RANGE(0x240000, 0x240003) AM_WRITE(cpua_ctrl_w)
AM_RANGE(0x280000, 0x287fff) AM_WRITE(superchs_palette_w) AM_BASE(&paletteram32)
AM_RANGE(0x2c0000, 0x2c07ff) AM_WRITE(SMH_RAM) AM_BASE(&f3_shared_ram)
AM_RANGE(0x300000, 0x300007) AM_WRITE(superchs_input_w) /* eerom etc. */
AM_RANGE(0x340000, 0x340003) AM_WRITE(superchs_stick_w) /* stick int request */
ADDRESS_MAP_END
static ADDRESS_MAP_START( superchs_cpub_readmem, ADDRESS_SPACE_PROGRAM, 16 )
AM_RANGE(0x000000, 0x03ffff) AM_READ(SMH_ROM)
AM_RANGE(0x200000, 0x20ffff) AM_READ(SMH_RAM) /* local ram */
AM_RANGE(0x800000, 0x80ffff) AM_READ(shared_ram_r)
AM_RANGE(0xa00000, 0xa001ff) AM_READ(SMH_RAM)
ADDRESS_MAP_END
static ADDRESS_MAP_START( superchs_cpub_writemem, ADDRESS_SPACE_PROGRAM, 16 )
AM_RANGE(0x000000, 0x03ffff) AM_WRITE(SMH_ROM)
AM_RANGE(0x200000, 0x20ffff) AM_WRITE(SMH_RAM)
AM_RANGE(0x600000, 0x60ffff) AM_WRITE(TC0480SCP_word_w) /* Only written upon errors */
AM_RANGE(0x800000, 0x80ffff) AM_WRITE(shared_ram_w)
AM_RANGE(0xa00000, 0xa001ff) AM_WRITE(SMH_RAM) /* Extra road control?? */
ADDRESS_MAP_END
/***********************************************************/
static INPUT_PORTS_START( superchs )
PORT_START("INPUTS")
PORT_BIT( 0x00000001, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x00000002, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x00000004, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x00000008, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x00000010, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x00000020, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x00000040, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x00000080, IP_ACTIVE_HIGH, IPT_SPECIAL ) PORT_CUSTOM(eeprom_bit_r, NULL) /* reserved for EEROM */
PORT_BIT( 0x00000100, IP_ACTIVE_LOW, IPT_BUTTON5 ) PORT_PLAYER(1) /* seat center (cockpit only) */
PORT_BIT( 0x00000200, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x00000400, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x00000800, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x00001000, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_NAME("Nitro")
PORT_BIT( 0x00002000, IP_ACTIVE_LOW, IPT_BUTTON4 ) PORT_NAME("Gear Shift")
PORT_BIT( 0x00004000, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_NAME("Brake")
PORT_BIT( 0x00008000, IP_ACTIVE_LOW, IPT_START1 )
PORT_BIT( 0x00010000, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x00020000, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x00040000, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x00080000, IP_ACTIVE_HIGH, IPT_BUTTON6 ) PORT_PLAYER(1) /* Freeze input */
PORT_SERVICE_NO_TOGGLE( 0x00100000, IP_ACTIVE_LOW )
PORT_BIT( 0x00200000, IP_ACTIVE_LOW, IPT_SERVICE1 )
PORT_BIT( 0x00400000, IP_ACTIVE_LOW, IPT_COIN2 )
PORT_BIT( 0x00800000, IP_ACTIVE_LOW, IPT_COIN1 )
PORT_BIT( 0x01000000, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x02000000, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x04000000, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x08000000, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x10000000, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x20000000, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x40000000, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x80000000, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_START("WHEEL") /* steering wheel */
PORT_BIT( 0xff, 0x7f, IPT_AD_STICK_X ) PORT_SENSITIVITY(25) PORT_KEYDELTA(15) PORT_REVERSE PORT_PLAYER(1)
PORT_START("ACCEL") /* accel [effectively also brake for the upright] */
PORT_BIT( 0xff, 0x00, IPT_AD_STICK_Y ) PORT_SENSITIVITY(20) PORT_KEYDELTA(10) PORT_PLAYER(1)
PORT_START("SOUND") /* sound volume */
PORT_BIT( 0xff, 0x00, IPT_AD_STICK_X ) PORT_SENSITIVITY(20) PORT_KEYDELTA(10) PORT_REVERSE PORT_PLAYER(2)
PORT_START("UNKNOWN") /* unknown */
PORT_BIT( 0xff, 0x00, IPT_AD_STICK_Y ) PORT_SENSITIVITY(20) PORT_KEYDELTA(10) PORT_PLAYER(2)
PORT_START("FAKE") /* inputs and DSW all fake */
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_PLAYER(1)
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_2WAY PORT_PLAYER(1)
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_2WAY PORT_PLAYER(1)
PORT_DIPNAME( 0x10, 0x00, "Steering type" )
PORT_DIPSETTING( 0x10, "Digital" )
PORT_DIPSETTING( 0x00, "Analogue" )
INPUT_PORTS_END
/***********************************************************
GFX DECODING
**********************************************************/
static const gfx_layout tile16x16_layout =
{
16,16, /* 16*16 sprites */
RGN_FRAC(1,1),
4, /* 4 bits per pixel */
{ 0, 8, 16, 24 },
{ 32, 33, 34, 35, 36, 37, 38, 39, 0, 1, 2, 3, 4, 5, 6, 7 },
{ 0*64, 1*64, 2*64, 3*64, 4*64, 5*64, 6*64, 7*64,
8*64, 9*64, 10*64, 11*64, 12*64, 13*64, 14*64, 15*64 },
64*16 /* every sprite takes 128 consecutive bytes */
};
static const gfx_layout charlayout =
{
16,16, /* 16*16 characters */
RGN_FRAC(1,1),
4, /* 4 bits per pixel */
{ 0, 1, 2, 3 },
{ 1*4, 0*4, 5*4, 4*4, 3*4, 2*4, 7*4, 6*4, 9*4, 8*4, 13*4, 12*4, 11*4, 10*4, 15*4, 14*4 },
{ 0*64, 1*64, 2*64, 3*64, 4*64, 5*64, 6*64, 7*64, 8*64, 9*64, 10*64, 11*64, 12*64, 13*64, 14*64, 15*64 },
128*8 /* every sprite takes 128 consecutive bytes */
};
static GFXDECODE_START( superchs )
GFXDECODE_ENTRY( "gfx2", 0x0, tile16x16_layout, 0, 512 )
GFXDECODE_ENTRY( "gfx1", 0x0, charlayout, 0, 512 )
GFXDECODE_END
/***********************************************************
MACHINE DRIVERS
***********************************************************/
static MACHINE_RESET( superchs )
{
taito_f3_soundsystem_reset(machine);
f3_68681_reset();
}
static const eeprom_interface superchs_eeprom_interface =
{
6, /* address bits */
16, /* data bits */
"0110", /* read command */
"0101", /* write command */
"0111", /* erase command */
"0100000000", /* unlock command */
"0100110000", /* lock command */
};
static const UINT8 default_eeprom[128]={
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x53,0x00,0x2e,0x00,0x43,0x00,0x00,
0x00,0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0x01,0xff,0xff,0xff,0xff,0x00,0x01,
0x00,0x01,0x00,0x01,0x00,0x00,0x00,0x01,0xff,0xff,0x00,0x00,0x00,0x00,0x00,0x00,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x80,0xff,0xff,0xff,0xff,
0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff
};
static NVRAM_HANDLER( superchs )
{
if (read_or_write)
eeprom_save(file);
else
{
eeprom_init(&superchs_eeprom_interface);
if (file)
eeprom_load(file);
else
eeprom_set_data(default_eeprom,128); /* Default the wheel setup values */
}
}
static MACHINE_DRIVER_START( superchs )
/* basic machine hardware */
MDRV_CPU_ADD("main", M68EC020, 16000000) /* 16 MHz */
MDRV_CPU_PROGRAM_MAP(superchs_readmem,superchs_writemem)
MDRV_CPU_VBLANK_INT("main", irq2_line_hold)/* VBL */
TAITO_F3_SOUND_SYSTEM_CPU(16000000)
MDRV_CPU_ADD("sub", M68000, 16000000) /* 16 MHz */
MDRV_CPU_PROGRAM_MAP(superchs_cpub_readmem,superchs_cpub_writemem)
MDRV_CPU_VBLANK_INT("main", irq4_line_hold)/* VBL */
MDRV_INTERLEAVE(8) /* CPU slices - Need to interleave Cpu's 1 & 3 */
MDRV_MACHINE_RESET(superchs)
MDRV_NVRAM_HANDLER(superchs)
/* video hardware */
MDRV_SCREEN_ADD("main", RASTER)
MDRV_SCREEN_REFRESH_RATE(60)
MDRV_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
MDRV_SCREEN_SIZE(40*8, 32*8)
MDRV_SCREEN_VISIBLE_AREA(0, 40*8-1, 2*8, 32*8-1)
MDRV_GFXDECODE(superchs)
MDRV_PALETTE_LENGTH(8192)
MDRV_VIDEO_START(superchs)
MDRV_VIDEO_UPDATE(superchs)
/* sound hardware */
TAITO_F3_SOUND_SYSTEM_ES5505(13343000)
MACHINE_DRIVER_END
/***************************************************************************/
ROM_START( superchs )
ROM_REGION( 0x100000, "main", 0 ) /* 1024K for 68020 code (CPU A) */
ROM_LOAD32_BYTE( "d46-35.27", 0x00000, 0x40000, CRC(1575c9a7) SHA1(e3441d6018ed3315c62c5e5c4534d8712b025ae2) )
ROM_LOAD32_BYTE( "d46-34.25", 0x00001, 0x40000, CRC(c72a4d2b) SHA1(6ef64de15e52007406ce3255071a1f856e0e8b49) )
ROM_LOAD32_BYTE( "d46-33.23", 0x00002, 0x40000, CRC(3094bcd0) SHA1(b6779b81a3ebec440a9359868dc43fc3a631ee11) )
ROM_LOAD32_BYTE( "d46-31.21", 0x00003, 0x40000, CRC(38b983a3) SHA1(c4859cecc2f3506b7090c462cecd3e4eaabe85aa) )
ROM_REGION( 0x140000, "audio", 0 ) /* Sound cpu */
ROM_LOAD16_BYTE( "d46-37.8up", 0x100000, 0x20000, CRC(60b51b91) SHA1(0d0b017808e0a3bdabe8ef5a726bbe16428db06b) )
ROM_LOAD16_BYTE( "d46-36.7lo", 0x100001, 0x20000, CRC(8f7aa276) SHA1(b3e330e33099d3cbf4cdc43063119b041e9eea3a) )
ROM_REGION( 0x40000, "sub", 0 ) /* 256K for 68000 code (CPU B) */
ROM_LOAD16_BYTE( "d46-24.127", 0x00000, 0x20000, CRC(a006baa1) SHA1(e691ddab6cb79444bd6c3fc870e0dff3051d8cf9) )
ROM_LOAD16_BYTE( "d46-23.112", 0x00001, 0x20000, CRC(9a69dbd0) SHA1(13eca492f1db834c599656750864e7003514f3d4) )
ROM_REGION( 0x200000, "gfx1", ROMREGION_DISPOSE )
ROM_LOAD16_BYTE( "d46-05.87", 0x00000, 0x100000, CRC(150d0e4c) SHA1(9240b32900be733b8f44868ed5d64f5f1aaadb47) ) /* SCR 16x16 tiles */
ROM_LOAD16_BYTE( "d46-06.88", 0x00001, 0x100000, CRC(321308be) SHA1(17e724cce39b1331650c1f08d693d057dcd43a3f) )
ROM_REGION( 0x800000, "gfx2", ROMREGION_DISPOSE )
ROM_LOAD32_BYTE( "d46-01.64", 0x000003, 0x200000, CRC(5c2ae92d) SHA1(bee2caed4729a27fa0569d952d6d12170c2aa2a8) ) /* OBJ 16x16 tiles: each rom has 1 bitplane */
ROM_LOAD32_BYTE( "d46-02.65", 0x000002, 0x200000, CRC(a83ca82e) SHA1(03759be87a8d62c0044e8a44e90c47308e32d3e5) )
ROM_LOAD32_BYTE( "d46-03.66", 0x000001, 0x200000, CRC(e0e9cbfd) SHA1(b7deb2c58320af9d1b4273ad2758ce927d2e279c) )
ROM_LOAD32_BYTE( "d46-04.67", 0x000000, 0x200000, CRC(832769a9) SHA1(136ead19edeee90b5be91a6e2f434193dc670fd8) )
ROM_REGION16_LE( 0x80000, "user1", 0 )
ROM_LOAD16_WORD( "d46-07.34", 0x00000, 0x80000, CRC(c3b8b093) SHA1(f34364248ca7fdaaa1a0f8f6f795f9b4bc935fb9) ) /* STY, used to create big sprites on the fly */
ROM_REGION16_BE( 0x1000000, "ensoniq.0" , ROMREGION_ERASE00 )
ROM_LOAD16_BYTE( "d46-10.2", 0xc00000, 0x200000, CRC(306256be) SHA1(e6e5d4a4c0b98470f2aff2e94624dd19af73ec5d) )
ROM_LOAD16_BYTE( "d46-12.4", 0x000000, 0x200000, CRC(a24a53a8) SHA1(5d5fb87a94ceabda89360064d7d9b6d23c4c606b) )
ROM_RELOAD ( 0x400000, 0x200000 )
ROM_LOAD16_BYTE( "d46-11.5", 0x800000, 0x200000, CRC(d4ea0f56) SHA1(dc8d2ed3c11d0b6f9ebdfde805188884320235e6) )
ROM_END
static READ32_HANDLER( main_cycle_r )
{
if (activecpu_get_pc()==0x702)
cpu_spinuntil_int();
return superchs_ram[0];
}
static READ16_HANDLER( sub_cycle_r )
{
if (activecpu_get_pc()==0x454)
cpu_spinuntil_int();
return superchs_ram[2]&0xffff;
}
static DRIVER_INIT( superchs )
{
/* Speedup handlers */
memory_install_read32_handler(machine, 0, ADDRESS_SPACE_PROGRAM, 0x100000, 0x100003, 0, 0, main_cycle_r);
memory_install_read16_handler(machine, 2, ADDRESS_SPACE_PROGRAM, 0x80000a, 0x80000b, 0, 0, sub_cycle_r);
}
GAME( 1992, superchs, 0, superchs, superchs, superchs, ROT0, "Taito America Corporation", "Super Chase - Criminal Termination (US)", 0 )