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gbusters.c
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C/C++ Source or Header
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2000-04-23
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15KB
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463 lines
/***************************************************************************
Gangbusters(GX878) (c) 1988 Konami
Preliminary driver by:
Manuel Abadia <manu@teleline.es>
***************************************************************************/
#include "driver.h"
#include "vidhrdw/generic.h"
#include "cpu/konami/konami.h" /* for the callback and the firq irq definition */
#include "vidhrdw/konamiic.h"
/* prototypes */
static void gbusters_init_machine( void );
static void gbusters_banking( int lines );
extern int gbusters_priority;
void gbusters_vh_stop( void );
int gbusters_vh_start( void );
void gbusters_vh_screenrefresh(struct osd_bitmap *bitmap,int full_refresh);
static int palette_selected;
static unsigned char *ram;
static int gbusters_interrupt( void )
{
if (K052109_is_IRQ_enabled())
return KONAMI_INT_IRQ;
else
return ignore_interrupt();
}
static READ_HANDLER( bankedram_r )
{
if (palette_selected)
return paletteram_r(offset);
else
return ram[offset];
}
static WRITE_HANDLER( bankedram_w )
{
if (palette_selected)
paletteram_xBBBBBGGGGGRRRRR_swap_w(offset,data);
else
ram[offset] = data;
}
static WRITE_HANDLER( gbusters_1f98_w )
{
/* bit 0 = enable char ROM reading through the video RAM */
K052109_set_RMRD_line((data & 0x01) ? ASSERT_LINE : CLEAR_LINE);
/* bit 7 used (during gfx rom tests), but unknown */
/* other bits unused/unknown */
if (data & 0xfe){
//logerror("%04x: (1f98) write %02x\n",cpu_get_pc(), data);
//usrintf_showmessage("$1f98 = %02x", data);
}
}
static WRITE_HANDLER( gbusters_coin_counter_w )
{
/* bit 0 select palette RAM or work RAM at 5800-5fff */
palette_selected = ~data & 0x01;
/* bits 1 & 2 = coin counters */
coin_counter_w(0,data & 0x02);
coin_counter_w(1,data & 0x04);
/* bits 3 selects tilemap priority */
gbusters_priority = data & 0x08;
/* bit 7 is used but unknown */
/* other bits unused/unknown */
if (data & 0xf8)
{
char baf[40];
logerror("%04x: (ccount) write %02x\n",cpu_get_pc(), data);
sprintf(baf,"ccnt = %02x", data);
// usrintf_showmessage(baf);
}
}
static WRITE_HANDLER( gbusters_unknown_w )
{
logerror("%04x: (???) write %02x\n",cpu_get_pc(), data);
{
char baf[40];
sprintf(baf,"??? = %02x", data);
// usrintf_showmessage(baf);
}
}
WRITE_HANDLER( gbusters_sh_irqtrigger_w )
{
cpu_cause_interrupt(1,0xff);
}
static WRITE_HANDLER( gbusters_snd_bankswitch_w )
{
unsigned char *RAM = memory_region(REGION_SOUND1);
int bank_B = 0x20000*((data >> 2) & 0x01); /* ?? */
int bank_A = 0x20000*((data) & 0x01); /* ?? */
K007232_bankswitch(0,RAM + bank_A,RAM + bank_B);
#if 0
{
char baf[40];
sprintf(baf,"snd_bankswitch = %02x", data);
usrintf_showmessage(baf);
}
#endif
}
static struct MemoryReadAddress gbusters_readmem[] =
{
{ 0x1f90, 0x1f90, input_port_3_r }, /* coinsw & startsw */
{ 0x1f91, 0x1f91, input_port_4_r }, /* Player 1 inputs */
{ 0x1f92, 0x1f92, input_port_5_r }, /* Player 2 inputs */
{ 0x1f93, 0x1f93, input_port_2_r }, /* DIPSW #3 */
{ 0x1f94, 0x1f94, input_port_0_r }, /* DIPSW #1 */
{ 0x1f95, 0x1f95, input_port_1_r }, /* DIPSW #2 */
{ 0x0000, 0x3fff, K052109_051960_r }, /* tiles + sprites (RAM H21, G21 & H6) */
{ 0x4000, 0x57ff, MRA_RAM }, /* RAM I12 */
{ 0x5800, 0x5fff, bankedram_r }, /* palette + work RAM (RAM D16 & C16) */
{ 0x6000, 0x7fff, MRA_BANK1 }, /* banked ROM */
{ 0x8000, 0xffff, MRA_ROM }, /* ROM 878n02.rom */
{ -1 } /* end of table */
};
static struct MemoryWriteAddress gbusters_writemem[] =
{
{ 0x1f80, 0x1f80, gbusters_coin_counter_w }, /* coin counters */
{ 0x1f84, 0x1f84, soundlatch_w }, /* sound code # */
{ 0x1f88, 0x1f88, gbusters_sh_irqtrigger_w }, /* cause interrupt on audio CPU */
{ 0x1f8c, 0x1f8c, watchdog_reset_w }, /* watchdog reset */
{ 0x1f98, 0x1f98, gbusters_1f98_w }, /* enable gfx ROM read through VRAM */
{ 0x1f9c, 0x1f9c, gbusters_unknown_w }, /* ??? */
{ 0x0000, 0x3fff, K052109_051960_w }, /* tiles + sprites (RAM H21, G21 & H6) */
{ 0x4000, 0x57ff, MWA_RAM }, /* RAM I12 */
{ 0x5800, 0x5fff, bankedram_w, &ram }, /* palette + work RAM (RAM D16 & C16) */
{ 0x6000, 0x7fff, MWA_ROM }, /* banked ROM */
{ 0x8000, 0xffff, MWA_ROM }, /* ROM 878n02.rom */
{ -1 } /* end of table */
};
static struct MemoryReadAddress gbusters_readmem_sound[] =
{
{ 0x0000, 0x7fff, MRA_ROM }, /* ROM 878h01.rom */
{ 0x8000, 0x87ff, MRA_RAM }, /* RAM */
{ 0xa000, 0xa000, soundlatch_r }, /* soundlatch_r */
{ 0xb000, 0xb00d, K007232_read_port_0_r }, /* 007232 registers */
{ 0xc001, 0xc001, YM2151_status_port_0_r }, /* YM 2151 */
{ -1 } /* end of table */
};
static struct MemoryWriteAddress gbusters_writemem_sound[] =
{
{ 0x0000, 0x7fff, MWA_ROM }, /* ROM 878h01.rom */
{ 0x8000, 0x87ff, MWA_RAM }, /* RAM */
{ 0xb000, 0xb00d, K007232_write_port_0_w }, /* 007232 registers */
{ 0xc000, 0xc000, YM2151_register_port_0_w }, /* YM 2151 */
{ 0xc001, 0xc001, YM2151_data_port_0_w }, /* YM 2151 */
{ 0xf000, 0xf000, gbusters_snd_bankswitch_w }, /* 007232 bankswitch? */
{ -1 } /* end of table */
};
/***************************************************************************
Input Ports
***************************************************************************/
INPUT_PORTS_START( gbusters )
PORT_START /* DSW #1 */
PORT_DIPNAME( 0x0f, 0x0f, DEF_STR( Coin_A ) )
PORT_DIPSETTING( 0x02, DEF_STR( 4C_1C ) )
PORT_DIPSETTING( 0x05, DEF_STR( 3C_1C ) )
PORT_DIPSETTING( 0x08, DEF_STR( 2C_1C ) )
PORT_DIPSETTING( 0x04, DEF_STR( 3C_2C ) )
PORT_DIPSETTING( 0x01, DEF_STR( 4C_3C ) )
PORT_DIPSETTING( 0x0f, DEF_STR( 1C_1C ) )
PORT_DIPSETTING( 0x03, DEF_STR( 3C_4C ) )
PORT_DIPSETTING( 0x07, DEF_STR( 2C_3C ) )
PORT_DIPSETTING( 0x0e, DEF_STR( 1C_2C ) )
PORT_DIPSETTING( 0x06, DEF_STR( 2C_5C ) )
PORT_DIPSETTING( 0x0d, DEF_STR( 1C_3C ) )
PORT_DIPSETTING( 0x0c, DEF_STR( 1C_4C ) )
PORT_DIPSETTING( 0x0b, DEF_STR( 1C_5C ) )
PORT_DIPSETTING( 0x0a, DEF_STR( 1C_6C ) )
PORT_DIPSETTING( 0x09, DEF_STR( 1C_7C ) )
PORT_DIPSETTING( 0x00, DEF_STR( Free_Play ) )
PORT_DIPNAME( 0xf0, 0xf0, DEF_STR( Coin_B ) )
PORT_DIPSETTING( 0x20, DEF_STR( 4C_1C ) )
PORT_DIPSETTING( 0x50, DEF_STR( 3C_1C ) )
PORT_DIPSETTING( 0x80, DEF_STR( 2C_1C ) )
PORT_DIPSETTING( 0x40, DEF_STR( 3C_2C ) )
PORT_DIPSETTING( 0x10, DEF_STR( 4C_3C ) )
PORT_DIPSETTING( 0xf0, DEF_STR( 1C_1C ) )
PORT_DIPSETTING( 0x30, DEF_STR( 3C_4C ) )
PORT_DIPSETTING( 0x70, DEF_STR( 2C_3C ) )
PORT_DIPSETTING( 0xe0, DEF_STR( 1C_2C ) )
PORT_DIPSETTING( 0x60, DEF_STR( 2C_5C ) )
PORT_DIPSETTING( 0xd0, DEF_STR( 1C_3C ) )
PORT_DIPSETTING( 0xc0, DEF_STR( 1C_4C ) )
PORT_DIPSETTING( 0xb0, DEF_STR( 1C_5C ) )
PORT_DIPSETTING( 0xa0, DEF_STR( 1C_6C ) )
PORT_DIPSETTING( 0x90, DEF_STR( 1C_7C ) )
// PORT_DIPSETTING( 0x00, "Invalid" )
PORT_START /* DSW #2 */
PORT_DIPNAME( 0x03, 0x02, DEF_STR( Lives ) )
PORT_DIPSETTING( 0x03, "2" )
PORT_DIPSETTING( 0x02, "3" )
PORT_DIPSETTING( 0x01, "5" )
PORT_DIPSETTING( 0x00, "7" )
PORT_DIPNAME( 0x04, 0x04, "Bullets" )
PORT_DIPSETTING( 0x04, "50" )
PORT_DIPSETTING( 0x00, "60" )
PORT_DIPNAME( 0x18, 0x10, DEF_STR( Bonus_Life ) )
PORT_DIPSETTING( 0x18, "50k, 200k & 400k" )
PORT_DIPSETTING( 0x10, "70k, 250k & 500k" )
PORT_DIPSETTING( 0x08, "50k" )
PORT_DIPSETTING( 0x00, "70k" )
PORT_DIPNAME( 0x60, 0x40, DEF_STR( Difficulty ) )
PORT_DIPSETTING( 0x60, "Easy" )
PORT_DIPSETTING( 0x40, "Normal" )
PORT_DIPSETTING( 0x20, "Difficult" )
PORT_DIPSETTING( 0x00, "Very Difficult" )
PORT_DIPNAME( 0x80, 0x00, DEF_STR( Demo_Sounds ) )
PORT_DIPSETTING( 0x80, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_START /* DSW #3 */
PORT_DIPNAME( 0x01, 0x01, DEF_STR( Flip_Screen ) )
PORT_DIPSETTING( 0x01, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x02, 0x02, DEF_STR( Unknown ) )
PORT_DIPSETTING( 0x02, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_SERVICE( 0x04, IP_ACTIVE_LOW )
PORT_DIPNAME( 0x08, 0x08, DEF_STR( Unknown ) )
PORT_DIPSETTING( 0x08, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_BIT( 0xf0, IP_ACTIVE_LOW, IPT_UNUSED )
PORT_START /* COINSW */
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN1 )
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_COIN2 )
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_COIN3 )
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_START1 )
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_START2 )
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )
PORT_START /* PLAYER 1 INPUTS */
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT | IPF_8WAY | IPF_PLAYER1 )
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT | IPF_8WAY | IPF_PLAYER1 )
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_UP | IPF_8WAY | IPF_PLAYER1 )
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN | IPF_8WAY | IPF_PLAYER1 )
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 | IPF_PLAYER1 )
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 | IPF_PLAYER1 )
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )
PORT_START /* PLAYER 2 INPUTS */
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT | IPF_8WAY | IPF_PLAYER2 )
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT | IPF_8WAY | IPF_PLAYER2 )
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_UP | IPF_8WAY | IPF_PLAYER2 )
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN | IPF_8WAY | IPF_PLAYER2 )
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 | IPF_PLAYER2 )
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 | IPF_PLAYER2 )
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )
INPUT_PORTS_END
/***************************************************************************
Machine Driver
***************************************************************************/
static void volume_callback(int v)
{
K007232_set_volume(0,0,(v >> 4) * 0x11,0);
K007232_set_volume(0,1,0,(v & 0x0f) * 0x11);
}
static struct K007232_interface k007232_interface =
{
1, /* number of chips */
{ REGION_SOUND1 }, /* memory regions */
{ K007232_VOL(30,MIXER_PAN_CENTER,30,MIXER_PAN_CENTER) }, /* volume */
{ volume_callback } /* external port callback */
};
static struct YM2151interface ym2151_interface =
{
1, /* 1 chip */
3579545, /* 3.579545 MHz */
{ YM3012_VOL(60,MIXER_PAN_LEFT,60,MIXER_PAN_RIGHT) },
{ 0 },
{ 0 }
};
static struct MachineDriver machine_driver_gbusters =
{
/* basic machine hardware */
{
{
CPU_KONAMI, /* Konami custom 052526 */
3000000, /* ? */
gbusters_readmem,gbusters_writemem,0,0,
gbusters_interrupt,1
},
{
CPU_Z80 | CPU_AUDIO_CPU,
3579545, /* ? */
gbusters_readmem_sound, gbusters_writemem_sound,0,0,
ignore_interrupt,0 /* interrupts are triggered by the main CPU */
}
},
60, DEFAULT_60HZ_VBLANK_DURATION, /* frames per second, vblank duration */
1, /* 1 CPU slice per frame - interleaving is forced when a sound command is written */
gbusters_init_machine,
/* video hardware */
64*8, 32*8, { 14*8, (64-14)*8-1, 2*8, 30*8-1 },
0, /* gfx decoded by konamiic.c */
1024, 1024,
0,
VIDEO_TYPE_RASTER | VIDEO_MODIFIES_PALETTE,
0,
gbusters_vh_start,
gbusters_vh_stop,
gbusters_vh_screenrefresh,
/* sound hardware */
0,0,0,0,
{
{
SOUND_YM2151,
&ym2151_interface
},
{
SOUND_K007232,
&k007232_interface
}
}
};
/***************************************************************************
Game ROMs
***************************************************************************/
ROM_START( gbusters )
ROM_REGION( 0x30800, REGION_CPU1 ) /* code + banked roms + space for banked RAM */
ROM_LOAD( "878n02.rom", 0x10000, 0x08000, 0x51697aaa ) /* ROM K13 */
ROM_CONTINUE( 0x08000, 0x08000 )
ROM_LOAD( "878j03.rom", 0x20000, 0x10000, 0x3943a065 ) /* ROM K15 */
ROM_REGION( 0x10000, REGION_CPU2 ) /* 64k for the sound CPU */
ROM_LOAD( "878h01.rom", 0x00000, 0x08000, 0x96feafaa )
ROM_REGION( 0x80000, REGION_GFX1 ) /* graphics (addressable by the main CPU) */
ROM_LOAD( "878c07.rom", 0x00000, 0x40000, 0xeeed912c ) /* tiles */
ROM_LOAD( "878c08.rom", 0x40000, 0x40000, 0x4d14626d ) /* tiles */
ROM_REGION( 0x80000, REGION_GFX2 ) /* graphics (addressable by the main CPU) */
ROM_LOAD( "878c05.rom", 0x00000, 0x40000, 0x01f4aea5 ) /* sprites */
ROM_LOAD( "878c06.rom", 0x40000, 0x40000, 0xedfaaaaf ) /* sprites */
ROM_REGION( 0x0100, REGION_PROMS )
ROM_LOAD( "878a09.rom", 0x0000, 0x0100, 0xe2d09a1b ) /* priority encoder (not used) */
ROM_REGION( 0x40000, REGION_SOUND1 ) /* samples for 007232 */
ROM_LOAD( "878c04.rom", 0x00000, 0x40000, 0x9e982d1c )
ROM_END
ROM_START( crazycop )
ROM_REGION( 0x30800, REGION_CPU1 ) /* code + banked roms + space for banked RAM */
ROM_LOAD( "878m02.bin", 0x10000, 0x08000, 0x9c1c9f52 ) /* ROM K13 */
ROM_CONTINUE( 0x08000, 0x08000 )
ROM_LOAD( "878j03.rom", 0x20000, 0x10000, 0x3943a065 ) /* ROM K15 */
ROM_REGION( 0x10000, REGION_CPU2 ) /* 64k for the sound CPU */
ROM_LOAD( "878h01.rom", 0x00000, 0x08000, 0x96feafaa )
ROM_REGION( 0x80000, REGION_GFX1 ) /* graphics (addressable by the main CPU) */
ROM_LOAD( "878c07.rom", 0x00000, 0x40000, 0xeeed912c ) /* tiles */
ROM_LOAD( "878c08.rom", 0x40000, 0x40000, 0x4d14626d ) /* tiles */
ROM_REGION( 0x80000, REGION_GFX2 ) /* graphics (addressable by the main CPU) */
ROM_LOAD( "878c05.rom", 0x00000, 0x40000, 0x01f4aea5 ) /* sprites */
ROM_LOAD( "878c06.rom", 0x40000, 0x40000, 0xedfaaaaf ) /* sprites */
ROM_REGION( 0x0100, REGION_PROMS )
ROM_LOAD( "878a09.rom", 0x0000, 0x0100, 0xe2d09a1b ) /* priority encoder (not used) */
ROM_REGION( 0x40000, REGION_SOUND1 ) /* samples for 007232 */
ROM_LOAD( "878c04.rom", 0x00000, 0x40000, 0x9e982d1c )
ROM_END
static void gbusters_banking( int lines )
{
unsigned char *RAM = memory_region(REGION_CPU1);
int offs = 0x10000;
/* bits 0-3 ROM bank */
offs += (lines & 0x0f)*0x2000;
cpu_setbank( 1, &RAM[offs] );
if (lines & 0xf0){
//logerror("%04x: (lines) write %02x\n",cpu_get_pc(), lines);
//usrintf_showmessage("lines = %02x", lines);
}
/* other bits unknown */
}
static void gbusters_init_machine( void )
{
unsigned char *RAM = memory_region(REGION_CPU1);
konami_cpu_setlines_callback = gbusters_banking;
/* mirror address for banked ROM */
memcpy(&RAM[0x18000], &RAM[0x10000], 0x08000 );
paletteram = &RAM[0x30000];
}
static void init_gbusters(void)
{
konami_rom_deinterleave_2(REGION_GFX1);
konami_rom_deinterleave_2(REGION_GFX2);
}
GAME( 1988, gbusters, 0, gbusters, gbusters, gbusters, ROT90, "Konami", "Gang Busters" )
GAME( 1988, crazycop, gbusters, gbusters, gbusters, gbusters, ROT90, "Konami", "Crazy Cop (Japan)" )