📄 subs.c
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/***************************************************************************
Subs Driver
If you have any questions about how this driver works, don't hesitate to
ask. - Mike Balfour (mab22@po.cwru.edu)
***************************************************************************/
#include "driver.h"
#include "vidhrdw/generic.h"
/* vidhrdw/subs.c */
extern void subs_vh_screenrefresh(struct osd_bitmap *bitmap,int full_refresh);
extern void subs_invert1_w(int offset, int data);
extern void subs_invert2_w(int offset, int data);
/* machine/subs.c */
extern void subs_init_machine(void);
extern int subs_interrupt(void);
extern void subs_steer_reset_w(int offset, int data);
extern int subs_control_r(int offset);
extern int subs_coin_r(int offset);
extern int subs_options_r(int offset);
extern void subs_lamp1_w(int offset, int data);
extern void subs_lamp2_w(int offset, int data);
extern void subs_noise_reset_w(int offset, int data);
extern void subs_sonar2_w(int offset, int data);
extern void subs_sonar1_w(int offset, int data);
extern void subs_crash_w(int offset, int data);
extern void subs_explode_w(int offset, int data);
static struct MemoryReadAddress readmem[] =
{
{ 0x0000, 0x0007, subs_control_r },
{ 0x0020, 0x0027, subs_coin_r },
{ 0x0060, 0x0063, subs_options_r },
{ 0x0000, 0x01ff, MRA_RAM },
{ 0x0800, 0x0bff, MRA_RAM },
{ 0x2000, 0x3fff, MRA_ROM },
{ 0xf000, 0xffff, MRA_ROM }, /* A14/A15 unused, so mirror ROM */
{ -1 } /* end of table */
};
static struct MemoryWriteAddress writemem[] =
{
{ 0x0000, 0x0000, subs_noise_reset_w },
{ 0x0020, 0x0020, subs_steer_reset_w },
{ 0x0060, 0x0061, subs_lamp1_w },
{ 0x0062, 0x0063, subs_lamp2_w },
{ 0x0064, 0x0065, subs_sonar2_w },
{ 0x0066, 0x0067, subs_sonar1_w },
{ 0x0068, 0x0069, subs_crash_w },
{ 0x006a, 0x006b, subs_explode_w },
{ 0x006c, 0x006d, subs_invert1_w },
{ 0x006e, 0x006f, subs_invert2_w },
{ 0x0090, 0x009f, spriteram_w, &spriteram },
{ 0x0000, 0x07ff, MWA_RAM },
{ 0x0800, 0x0bff, videoram_w, &videoram, &videoram_size },
{ 0x2000, 0x3fff, MWA_ROM },
{ -1 } /* end of table */
};
INPUT_PORTS_START( subs_input_ports )
PORT_START /* OPTIONS */
PORT_DIPNAME( 0x01, 0x00, "Attract Sound", IP_KEY_NONE )
PORT_DIPSETTING( 0x00, "On" )
PORT_DIPSETTING( 0x01, "Off" )
PORT_DIPNAME( 0x02, 0x00, "Credit/Time", IP_KEY_NONE )
PORT_DIPSETTING( 0x00, "Each Coin Buys Time" )
PORT_DIPSETTING( 0x02, "Fixed Time" )
PORT_DIPNAME( 0x0C, 0x00, "Game Language", IP_KEY_NONE )
PORT_DIPSETTING( 0x00, "English" )
PORT_DIPSETTING( 0x04, "Spanish" )
PORT_DIPSETTING( 0x08, "French" )
PORT_DIPSETTING( 0x0C, "German" )
PORT_DIPNAME( 0x10, 0x00, "Game Cost", IP_KEY_NONE )
PORT_DIPSETTING( 0x10, "Free Play" )
PORT_DIPSETTING( 0x00, "Coinage" )
PORT_DIPNAME( 0xE0, 0x40, "Game Length", IP_KEY_NONE )
PORT_DIPSETTING( 0x00, "0:30 Minutes" )
PORT_DIPSETTING( 0x20, "1:00 Minutes" )
PORT_DIPSETTING( 0x40, "1:30 Minutes" )
PORT_DIPSETTING( 0x60, "2:00 Minutes" )
PORT_DIPSETTING( 0x80, "2:30 Minutes" )
PORT_DIPSETTING( 0xA0, "3:00 Minutes" )
PORT_DIPSETTING( 0xC0, "3:30 Minutes" )
PORT_DIPSETTING( 0xE0, "4:00 Minutes" )
PORT_START /* IN1 */
PORT_BIT ( 0x01, IP_ACTIVE_LOW, IPT_UNKNOWN ) /* Diag Step */
PORT_BIT ( 0x02, IP_ACTIVE_LOW, IPT_UNKNOWN ) /* Diag Hold */
PORT_BIT ( 0x04, IP_ACTIVE_LOW, IPT_TILT ) /* Slam */
PORT_BIT ( 0x08, IP_ACTIVE_LOW, IPT_UNUSED ) /* Spare */
PORT_BIT ( 0xF0, IP_ACTIVE_HIGH, IPT_UNUSED ) /* Filled in with steering information */
PORT_START /* IN2 */
PORT_BIT ( 0x01, IP_ACTIVE_HIGH, IPT_COIN1 ) /* COIN 1 */
PORT_BIT ( 0x02, IP_ACTIVE_LOW, IPT_START1 ) /* START 1 */
PORT_BIT ( 0x04, IP_ACTIVE_HIGH, IPT_COIN2 ) /* COIN 2 */
PORT_BIT ( 0x08, IP_ACTIVE_LOW, IPT_START2 ) /* START 2 */
PORT_BIT ( 0x10, IP_ACTIVE_LOW, IPT_VBLANK ) /* VBLANK */
PORT_BIT ( 0x20, IP_ACTIVE_LOW, IPT_BUTTON1 ) /* FIRE 1 */
PORT_BITX( 0x40, IP_ACTIVE_LOW, IPT_SERVICE | IPF_TOGGLE, "Self Test", OSD_KEY_F2, IP_JOY_NONE, 0 )
PORT_BIT ( 0x80, IP_ACTIVE_LOW, IPT_BUTTON2 ) /* FIRE 2 */
PORT_START /* IN3 */
PORT_ANALOG ( 0xff, 0x00, IPT_DIAL, 100, 0, 0, 0 )
PORT_START /* IN4 */
PORT_ANALOG ( 0xff, 0x00, IPT_DIAL | IPF_PLAYER2, 100, 0, 0, 0 )
INPUT_PORTS_END
static unsigned char palette[] =
{
0x00,0x00,0x00, /* BLACK - modified on video invert */
0xff,0xff,0xff, /* WHITE - modified on video invert */
0x80,0x80,0x80, /* LT GREY - unused except for MAME text */
0x55,0x55,0x55, /* DK GREY - unused except for MAME text */
0x00,0x00,0x00, /* BLACK - modified on video invert */
0xff,0xff,0xff, /* WHITE - modified on video invert*/
};
static unsigned short colortable[] =
{
0x00, 0x01, /* Right screen */
0x04, 0x05 /* Left screen */
};
static struct GfxLayout playfield_layout =
{
8,8, /* 8*8 characters */
256, /* 256 characters */
1, /* 1 bits per pixel */
{ 0 }, /* No info needed for bit offsets */
{ 0, 1, 2, 3, 4, 5, 6, 7 },
{ 0, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 },
8*8 /* every char takes 8 consecutive bytes */
};
static struct GfxLayout motion_layout =
{
16,16, /* 16*16 characters */
32, /* 32 characters */
1, /* 1 bits per pixel */
{ 0 }, /* No info needed for bit offsets */
{ 3 + 0x200*8, 2 + 0x200*8, 1 + 0x200*8, 0 + 0x200*8,
7 + 0x200*8, 6 + 0x200*8, 5 + 0x200*8, 4 + 0x200*8,
3, 2, 1, 0, 7, 6, 5, 4 },
{ 0, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8,
8*8, 9*8, 10*8, 11*8, 12*8, 13*8, 14*8, 15*8 },
16*8 /* every char takes 16 consecutive bytes */
};
static struct GfxDecodeInfo gfxdecodeinfo[] =
{
{ 1, 0x0000, &playfield_layout, 0, 2 }, /* playfield graphics */
{ 1, 0x0800, &motion_layout, 0, 2 }, /* motion graphics */
{ 1, 0x0c00, &motion_layout, 0, 2 }, /* motion graphics */
{ -1 } /* end of array */
};
static struct MachineDriver machine_driver =
{
/* basic machine hardware */
{
{
CPU_M6502,
12096000/16, /* clock input is the "4H" signal */
0,
readmem,writemem,0,0,
subs_interrupt,4 /* NMI interrupt on the 32V signal if not in self-TEST */
}
},
60, DEFAULT_REAL_60HZ_VBLANK_DURATION, /* frames per second, vblank duration */
1, /* single CPU, no need for interleaving */
subs_init_machine,
/* video hardware */
64*8, 32*8, { 0*8, 64*8-1, 0*8, 32*8-1 },
gfxdecodeinfo,
sizeof(palette)/3,sizeof(colortable)/sizeof(unsigned short),
0,
VIDEO_TYPE_RASTER | VIDEO_MODIFIES_PALETTE,
0,
generic_vh_start,
generic_vh_stop,
subs_vh_screenrefresh,
/* sound hardware */
0,0,0,0,
};
/***************************************************************************
Game ROMs
***************************************************************************/
static void subs_rom_init(void)
{
int i;
/* Merge nibble-wide roms together,
and load them into 0x2000-0x20ff */
for(i=0;i<0x100;i++)
{
ROM[0x2000+i] = (ROM[0x8000+i]<<4)+ROM[0x9000+i];
}
}
ROM_START( subs_rom )
ROM_REGION(0x10000) /* 64k for code */
ROM_LOAD( "34190.p1", 0x2800, 0x0800, 0xa88aef21 )
ROM_LOAD( "34191.p2", 0x3000, 0x0800, 0x2c652e72 )
ROM_LOAD( "34192.n2", 0x3800, 0x0800, 0x3ce63d33 )
ROM_RELOAD( 0xF800, 0x0800 )
/* Note: These are being loaded into a bogus location, */
/* They are nibble wide rom images which will be */
/* merged and loaded into the proper place by */
/* subs_rom_init() */
ROM_LOAD( "34196.e2", 0x8000, 0x0100, 0x7c7a04c3 ) /* ROM 0 D4-D7 */
ROM_LOAD( "34194.e1", 0x9000, 0x0100, 0x6b1c4acc ) /* ROM 0 D0-D3 */
ROM_REGION_DISPOSE(0x1000) /* graphics */
ROM_LOAD( "34211.m4", 0x0000, 0x0800, 0xfa8d4409 ) /* Playfield */
ROM_LOAD( "34216.d7", 0x0800, 0x0200, 0x941d28b4 ) /* Motion */
ROM_LOAD( "34217.d8", 0x0a00, 0x0200, 0xa7a60da3 ) /* Motion */
ROM_LOAD( "34218.e7", 0x0c00, 0x0200, 0xf4f4d874 ) /* Motion */
ROM_LOAD( "34219.e8", 0x0e00, 0x0200, 0x99a5a49b ) /* Motion */
ROM_END
/***************************************************************************
Game driver(s)
***************************************************************************/
struct GameDriver subs_driver =
{
__FILE__,
0,
"subs",
"Subs",
"1977",
"Atari",
"Mike Balfour",
0,
&machine_driver,
0,
subs_rom,
subs_rom_init, 0,
0,
0, /* sound_prom */
subs_input_ports,
0, palette, colortable,
ORIENTATION_DEFAULT,
0,0
};
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